Computer Purchase Plan for October 2020
Preface
Recently, my dad needs to buy a computer. He needs a laptop, two designer computers, and two office computers. No budget is mentioned.
Visually check that laptops are mainly portable, and ultrabooks are the direction of choice; office computers require good display and smooth running of Excel; design computers require good graphics rendering and display; roughly estimate laptop budget 3k-5k; designers Desktop computer 4k; office computer 3k;
There are two purchase channels, one is online and the other is offline. Online should be more cost-effective, and offline after-sales can be more convenient; but compared to the two, online may be better; online purchases are for one hand and the other for second-hand; first-hand insurance ；
It's natural to buy it without money, but if you have a tight hand, you need to consider the price/performance ratio. For the purpose of learning, I used the purpose of buying computers to get a preliminary understanding of the current computer industry (I haven't paid attention to it for a long time). Literate yourself, and follow up to understand the current computer hardware market.
Information channels: Zhihu, Tieba, Baidu, Jingdong;
Information processing: analysis of performance and price;
I intend to literacy from two perspectives: hardware market, computer market
The hardware market is based on the price comparison of CPU, GPU, motherboard, memory stick, hard disk, power supply, heat dissipation, chassis display, keyboard, mouse and audio on JD.com;
The computer market is based on the various levels of Dell desktop configurations on JD.com, focusing on CPU and GPU. The prices of other memory modules and hard drives are relatively stable;
Article Directory
Eat melon
Is the desktop computer a group or a complete one?
Reference article: Why do you want to set up your own desktop computer instead of buying a complete or branded computer
Author's point of view:
It is best to group by yourself, cost-effective and good computer;
The next point is the entire JD.com, the computer is a beggar version, but the after-sales service is good.
The worst is the brand machine, the leftover material used.
my point of view
In pursuit of convenience to buy branded machines, the leftovers are leftovers, and those brands will not smash their own brands, just enough; the pursuit of a little price-performance ratio is the whole machine of Jingdong; the pursuit of the ultimate price-performance ratio is its own group.
There is no time to spend more money to buy a good one; the 7000 computer will not be much worse than the 5000 own group. As long as you don’t get hacked too much.
Own group
CPU part: CPU is a chip, no other things are involved. It only has different models and different performances. So as long as the CPU is marked with what it is, it is hard to beat. But there are also two types of CPUs, one is in bulk and the other is boxed. Bulk film is cheap without warranty, boxed is expensive but with warranty.
GPU part: So the graphics card is the first shrinking point of major OEMs. The best 1060 6G requires 2400, and the worst 1060 6G only requires 1800, so don’t look at all 1060 6G. The price and materials are poor. For a section, of course, as long as it is the core of 1060 6G, their performance is similar, and the highest is not worse than 10%, but from the perspective of durability and temperature, the Beggar version is not good.
Mainboard part: The mainboard hardly affects the performance, so this place has become the hardest hit area of the whole machine shrinking. The main function of the mainboard is to provide interfaces and power supply. On the whole machine, the interface is enough, and the power supply is enough. In addition to the materials used, the motherboard integrates network cards and sound cards, so a good motherboard network card and sound card are good.
Memory part: The capacity of the memory is dead, saying that 8G is 8G, but there are other parameters of the memory, that is, frequency and timing. The higher the frequency, the lower the timing, the higher the performance. The whole machine generally gives you low-frequency and high-timing memory .
Hard disk part: mechanical hard disk is a dead thing, the gap is not very obvious. Focus on solid state drives. The key factor for judging the quality of a solid state is the main control and particles. Samsung and intel have always had very good main control and particles, so the solid state of Samsung and intel has always been the first choice for installation, and the whole machine likes to use what Colorful, Taipower , Jintike this kind of rubbish black piece white piece solid state. Both speed and life span are serious concerns. Solid-state hard drives, like memory, have dead capacity. But the top priority of an SSD is speed.
Heat dissipation part: 120 integrated water cooling is waste, the actual effect is not as good as 100 yuan air cooling. The whole machine especially likes to use the mini heat dissipation with dual heat pipes. The cost is less than 30. The cheapest heat dissipation with 4 heat pipes and 12CM is 79.
Power supply part: The better the power supply conversion rate is, the more power it saves compared to the poor power supply.
Case part: A good case and a bad case are definitely not a texture. A good case has a good design and is easy to install, and a bad case has wrong screw hole tolerances. It is really disgusting to install. The current high-end chassis are aluminum alloy frame + tempered glass, while the low-end chassis are aluminum alloy iron + plastic shell.
Whole machine
The whole machine matched by third-party merchants on the emerging e-commerce platform: Taobao machine.
Most of them are beggar versions, with a purchase price of 3500 and a purchase price of 4199. (Still acceptable)
The whole machine matched by the first-party merchant on the emerging e-commerce platform: JD machine.
Although it is also a beggar version, the perfect after-sales service and the less serious hardware shrinkage compared to the complete Taobao machine can still be considered for those who do not want to toss.
The complete machine of Lenovo, Dell and Hewlett-Packard, which is mainly an established computer manufacturer: branded machine.
Compared with the Taobao machine, the brand machine has shrunk more severely. No matter how bad the beggar version is, it is also a commodity in circulation, which always needs to meet the needs of the public, but the brand machine is a panel directly customized to the factory.
Desktop is the pursuit of cost performance or I like it
Reference article: What are the recommendations and recommendations for 618 desktop computers in 2020?
Choose one of two strategies: focus on cost-effectiveness OR you like it
The author's point of view: For playing games, enough CPU and memory are good, motherboard memory power supply is stable, and the chassis is the one you like. There is no standard answer for heat dissipation whether it is matte air cooling or RGB water cooling. Only the graphics card, only the graphics card, is absolutely not bad.
The author's needs are: more and more games that support new technologies such as light chase at present and in the future, as well as CS GO, an e-sports game (requiring a stable ultra-high frame rate), and editing some videos by the way. Therefore, the configuration is more focused on the graphics card, and others are enough and stable enough.
Reasons for CPU choice: In terms of CPU, although the author is not a user with special high-performance requirements, considering that he still has to play 3A games and do some video editing, 6 cores are relatively just needed, and the main CSGO is actually hyperthreaded There is a negative optimization. In some reviews, the frame rate of 3500X with the same frequency is higher than that of 3600, so AMD R5 3500X was chosen decisively. 1349 yuan.
Reasons for choosing SSD: Kingston’s KC2000, 1000G’s 1269 yuan. It belongs to the high-end line, with strong performance, and the storage particles are also made in-house, which is relatively stable.
Memory options: HyperX Predator is currently relatively popular, 8G*2 package, 489 yuan.
Radiator selection: Antec's water cooling, specifically 240-size Neptune, TDP should be 95W, so even if you overclock the CPU in the future, it will be enough.
Chassis selection: DP301M Starkiller of Antec Dark Family, 299 yuan. The overall design is still very solid and heavy, with sufficient materials for steel plate + tempered glass.
Summary: In terms of cost performance alone, these high-end products (the HOF 2060S graphics card of GALAXY) will definitely suffer from the absolute performance-price ratio. You can cut a few hundred yuan to start other 2060S. But if you take into account the excellent workmanship of this graphics card, the very affectionate GTX 980 HOF radiator design, the beautiful appearance of the whole body, the excellent heat dissipation performance, and the 3-year warranty plus after-sales service that supports personal warranty, In fact, it is quite recommended for hardcore players who want to play the current and next few years of 3A masterpieces, and want to run full FPS games at 240 fps.
My point of view: Indeed, performance is almost the same, and happiness can only be achieved when other experiences come up.
2020 computer configuration recommendations
Reference article: 2020 computer configuration recommendation (study work)
I'm not sure about the author's position. For reference.
Copy workers: more often recommend notebooks. AMD 3200G has twice the core and better core display than 3000G. For high-definition video, various applications will be easier to use, and it also has better 3D display capabilities than 9100. Solid-state hard drives can be added as needed.
Image design entry computer: the configuration is relatively balanced, and the durability is significantly improved than the previous configuration. 3400G provides twice as many threads as 3200G, and the filter rendering performance in PS has a stronger performance. The core display has also been improved to VEGA11, but The price of +300 is actually not too expensive, and the discount is not as big as 3200G. It is suitable as a CPU for excessive game and image learning.
3D design introductory computer: directly skip the 3100 to 3300X CPU. Compared with 3100, 3300X has higher frequency performance. With 560TX, it performs well in the Adobe Family Bucket. Most 3D software has a low learning threshold. Can easily cope.
Top configuration: The highest CPU currently available, the memory stick is directly inserted into 8 slots, and it is a small nuclear power plant, which is generally used for rendering operations in large-scale studios (some laboratories also have them, but most use super servers) ), for professional users, this set may also be replaced with professional graphics cards (not this kind of game cards). Since the release of this product, only 40 sets have been sold on JD. It can be said to be a treasure of the town store (not easy to sell) ), because it cannot be produced on a large scale, the 3770X/3760X is relatively close to the people.
Worship it and buy it without any money.
Hardware market
Based on the evaluation seen in the previous article. The position is uncertain, it may be a soft article, but you can refer to it.
CPU
Reference article: Assembling a computer: How to choose a CPU?
The most impact on performance is nothing more than the following major accessories:
- CPU (Mainstream: 9900K/3900X/3700X/3600)
- Motherboard (mainstream: Z390/B360M/X570/B450M)
- Graphics card (mainstream: RX580/1660TI/2060/5700XT)
- Memory (mainstream: DDR2666/3000/3200/3600)
After the above main matching needs, the remaining parts are well arranged. Such as case, power supply, hard disk, display and so on.
The most critical factor affecting the life span is the power supply, followed by the cooling system (including CPU/graphics card, chassis).
Main CPU reviews from 2019 to 2020.
In 2019, there is no suspense for the CPU. AMD's 3000 series is the first to completely crush Intel in terms of performance and price. AMD is directly recommended in terms of price and performance.
AMD's main home models:
- Getting started: 3200G/3400G (second generation)/3100
- Middle and low end: 3300X/3500X/3600/3600X
- High-end: 3700X/3800X/3900X
- Flagship: 3950X (video workstation)
In 2019, Intel was limited by the impact of insufficient production capacity, and the introduction of new CPU products was slow, and AMD achieved a super-class performance jump through the new ZEN+ architecture, becoming the best accessory choice in the current DIY market (because the motherboard price of AMD configuration is much cheaper than INTEL , Instead of changing the interface so quickly), the cost performance is also very high.
Due to production capacity, the 3300X and 3500X processors at the same level are basically out of stock. This price/performance ratio is much higher than that of 9400F and 10400, and several other mid-range processors are still very capable: 3600/3700x, the price/performance ratio is also very good, suitable for users who are not enthusiasts.
Ordinary mainstream players who choose Ryzen 3600 can send all mainstream games, far better than 9400F, and also surpass 9600K of the same level. If you want to gain more gaming experience, then 3700X is the best choice. With a price of more than 2000 Part of the game's performance catches up to 9900K.
CPU is actually the choice of AMD and Intel. Generally, Intel has good performance and AMD is cost-effective.
Entry level: AMD 3200G
Mid-range: 3600/3700x
Graphics card
Reference article: Assembling a computer: computer configuration graphics card recommendation
Under the impact of a large number of mining cards this year, the price of graphics cards has generally fallen. The old Huang’s 1000 series has also been upgraded to the 1600 series, and the price of AMD’s handle Sapphire RX580 8G has been all the way to 1000, in the high-end market Recently, it released the 5700 series of graphics cards with RDNA architecture, using DD6 video memory, supporting PCIE4.0, and the performance is between the old Huang's RTX2060 and 2070.
Why are some graphics cards of the same brand and the same model cheaper?
The graphics card is actually a set of integrated modules + heat dissipation + power supply. Cheap graphics cards usually have a lower heat dissipation (heat dissipation + fan) relative to the specifications, and part of the power supply is also reduced. For those who pursue the limits of the game, the low-end The graphics card may suffer from insufficient heat dissipation during long-term gaming, and performance will be affected. The reduced power supply will reduce the high load capacity of the graphics card itself, and it is also not conducive to overclocking and other gameplay. However, for most players, if they have higher requirements for the game, it is recommended to choose a higher level. Even the beggar version can easily suppress the lower level flagships. For example, the 2070S is still much stronger than the 2060S. The price of the latter's flagship version is already Close to the beggar version of 2070S.
What model of graphics card to buy?
Regardless of whether it is A card or N card, a new version of graphics card is basically released every year, and electronic products are bought new and not old because of technological progress, and even if they change hands in the future, there will be a better receiving market. The main products of N card in 2020 All with S, such as 1660s/20060s/2070s, etc., the most high-end product 2080ti, Titan RTX, generally speaking, the power consumption of the N card under full load conditions will be lower than the same level of A graphics card.
GPU is actually the choice of N card and A card. (The graphics card has not been studied much)
RAM
Reference article: Assembling a computer: Memory stick recommendation (desktop memory)
This year’s memory has dropped significantly. Although Japan imposed sanctions on South Korea’s raw materials, the price has returned after all. The fundamental reason is that the PC market has not expanded at the same time after the memory capacity has increased significantly in the past, resulting in a large amount of inventory and the current supply of the entire market. The amount is still very sufficient.
At present, DDR4 is mainly purchased for memory, and the frequency is mainly 2666, 3200, and 3600. The most cost-effective is 3200MHZ.
The current standard memory will be 8G*2 dual-channel, but next year, it should be a 32G memory combination, and two more will be appropriate. DDR5 memory will also be available in the future, but overall, the memory will not have an excessively high impact on the performance of the machine. The price of new memory will also be expensive. Some video editors especially eat memory. It is recommended to pay attention to 32/64G directly.
Domestic advanced memory, stable and very good! The price is also cheap! A must for non-overclocking users to save money!
Memory stick: choose Kingston 8*2 3200; if not overclocking, choose domestic Guangwei 8*2
SSD
Reference article: Assembling a computer: 2020 SSD recommendation
At present, solid-state drives have completely replaced mechanical hard drives. With the continuous decline in the price of NAND flash memory, the price of SSDs is now as cheap as cabbage. However, due to special reasons in 2020, the shutdown will affect solid-state drives also greatly increase, such as Toshiba's RC500. Doubled. According to the technological development, solid-state hard drives will have a price cut in the long term.
There are currently two main technologies: M.2 SATA, M.2 NVMe;
The M2 solid state drive has now become the standard configuration of the installation. The solid state capacity of 126G can be used as the system disk, and the others can be equipped with machinery. In addition, the basic 1T price of mechanical hard disks is between 270 and 300, and fewer people buy them. With the shrinking technology of a large number of traditional hard disk manufacturers, they are also used for large file storage.
The M.2 interface (NVME protocol) used by the solid state drive is the main, and the motherboard pays special attention to whether it supports it.
Mainstream SSD recommendation
Toshiba RC500 is relatively cheap, and its random read performance is also very good. The most recommended hard drive, the lowest price is 289/256, 439/500G. Compared with RC500, RD500 is greatly improved, the price is 50% more expensive, but the speed is nearly doubled . It is better to buy based on demand.
Western Digital's SN550 series has excellent random write capability, which is good for activities.
If it is a mechanical hard drive, only a Toshiba 7200RPM is recommended
Toshiba RC500 is selected as the solid state drive.
monitor
Reference article: Computer monitor recommendation: game/graphics/2K/144/IPS (desktop and notebook external)
The price of the panel has been declining. In China, where the manufacturing capacity is extremely developed, all kinds of Internet TVs such as Xiaomi, Fengxing, Microwhale, Pinduoduo can be purchased within 55 inches of 1800.
From the bulky flat-panel displays to curved displays in the early years, the display market has joined 2K/4K in the past two or three years. In the past, high-end 144hz/200hz has also begun to decentralize technology. What brand is it, but the quality of the display has been improving, and the price It has been declining, and LCD panels now feel a bit oversupply.
The monitor is roughly divided into: home office (price and resolution), image design (strong color display, true reduction ability), game design (refresh, and graphics card output limit)
The key points of the monitor: color gamut (display more colors), resolution (multiple windows), refresh (FPS);
- Office and home use: 27-inch 2K-60hz, good-looking appearance (appearance value is justice) about 1000 budget
- Image design: 27-2K/31.5-4K, color + large working area is king, budget above 2000
- Gaming e-sports: 27-2K-144hz (FreeSync/G-SYNC) provides the upper limit of graphics card output, and the budget is around 1500
Why do you no longer choose 1080P resolution for home use? Because the output of most machines now can easily exceed 2K under 60hz, 2K can bring a larger screen display, you can watch Word and web pages at the same time, the price is not too much. But like Changhong's 31.5-inch FHD (1080P), don't buy it. It's more granular than the TV.
Now 2K (2560*1440) ultra-high resolution is the mainstream recommendation.
Recommendation: SANC 24-inch 2K display IPS 75HZ ▶ 699
Motherboard
Reference article: Assembling a computer: How to choose a motherboard?
The motherboard is the transfer station of the computer, which is related to the operation of all accessories and future computer upgrades.
AMD's motherboard interfaces are currently AM4. This interface is very versatile and has been used for three generations. At present, the most recommended AMD motherboards mainly include the following models and related manufacturers:
- AMD Ryzen low-end entry-level motherboard: A320 (manufacturer recommendation: MSI, ASRock, Gigabyte, Colorful)
- AMD Ryzen mid-range cost-effective motherboard: B450 (manufacturer recommendation: MSI, ASRock, Gigabyte)
- AMD Ryzen high-end performance motherboard: X570 (manufacturer recommendation: ASUS, MSI, Colorful)
Among the above AMD motherboards, MSI’s arsenal series (mortars, etc.) is the best in terms of workmanship and materials.
Intel’s motherboard uses LGA1511, which has been used since the fifth generation of Core Duo, and is now also in the fifth generation. It is about to be upgraded. At present, Intel motherboards mainly have the following models and common manufacturers:
- Core low-end entry-level motherboard: H310 (ASRock, MSI, Gigabyte, Colorful)
- Core mid-range mainstream motherboard: B360 (ASRock, MSI, Gigabyte, Colorful)
- Core high-end enthusiast motherboard: Z390 (ASUS, MSI, Gigabyte, Colorful)
Among the above Intel motherboards, there are three-line brands similar to Onda and Maxsun at the low end. Domestic assembled computers are often equipped. However, in terms of product quality, the low-end motherboard ASRock Colorful does the best, and the mid-range MSI and Gigabyte, high-end directly on Asus. There is also a B365 model in the mid-range motherboard, this is a very rubbish model, to avoid.
I don't know the motherboard.
Computer Quotes
notebook
Reference article: Laptop recommendation for college students (updated on 2020.10.03)
Pay attention to the impact of CPU, graphics card, memory, hard disk, and monitor on prices.
Lightweight notebook: easy to carry, performance is weaker than other types of notebooks, suitable for people who often have to carry the notebook around and travel, can meet the needs of daily office, audio and video entertainment and basic editing.
Almighty notebook: The performance of the processor or graphics card will be stronger than that of the thin and light notebook. The performance of the all-round notebook with a unique display (MX2/350) will be better than that of the thin and light notebook. It can run some better optimized games (DOTA2, OW, CSGO, Sword Spirit, etc.), but more than half of all-round laptops are not as portable as thin and light laptops, and their overall performance is not as strong as gaming laptops. They are a compromise choice between thin and light laptops and gaming laptops.
Gaming notebook: A notebook type that pursues performance. The overall performance is the strongest among all notebook types. However, portability and battery life have to be compromised for performance.
Liberal arts majors (law, economics, literature, etc.), most majors do not require high computer performance, and you can choose from the light and all-round books in the article;
Film and television and design in the art majors : These two majors have requirements for the screen quality of the computer. If the budget is sufficient, it is best to buy a computer with a nominal color gamut of 100% sRGB.
Film and television majors generally need to use video processing (PR, Da Vinci, AE, etc.), three-dimensional animation rendering production (Maya, 3D MAX, C4D, etc.) software, these software are more computer-based performance, need to play Optional in notebooks and high-performance all-round notebooks.
Design majors , if only some 2D retouching/drawing software (PS, LR, CDR, etc.) and typesetting software are involved, light and thin or all-round books can meet the needs, but if it also involves the above film and television professional software, then You also need to buy in gaming notebooks and high-performance all-round notebooks.
Memory stick: 16G memory can be as fast as it can, without any harm.
Notebook computer charging problem: When you can connect to the power, try to use it, and disconnect the power when not in use.
I guess the notebook is mainly for office use, and CAD is occasionally used. So focus on display.
RedmiBook 16 Ryzen Edition 16G (optional R7-4700U)
Shenzhou Jingdun U65A Play/Youth Edition
Office computer
Reference article: What desktop computer is good for office use?
CPU: The current processor market is supported by AMD and Intel. Although most gamers choose the cheaper AMD, it has poor stability and high power consumption, so I still recommend Intel.
Graphics card: There are two types, one is NVIDIA type, and the other is ATI type. Game enthusiasts prefer the former. If you are drawing office, you should choose the latter.
Memory: Memory is one-third of the world, but you only need to select the corresponding memory according to the motherboard model.
Painting computer
Reference article: What kind of configuration does cad need?
In general, CAD does not have high requirements for the configuration of the host.
The memory is 8G, but the current mainstream is 8G*2. Conditionally upgrade to 32G in the future;
The role of the CPU is to maintain the smoothness of drawing, engineering calculations, and graphics rendering. The better the CPU, the smoother the drawing operation and the faster the calculation speed. Especially for complex projects and large drawings, the role and influence of the CPU is still great. The bottleneck of CPU performance often lies in the single-core frequency. For large drawings and complex projects, choose a CPU with a core number between 6-8 cores, a main frequency above 3.6ghz, and a turbo frequency above 4.4ghz .
The main function of the graphics card is to display 3D models and accelerate the preview of large drawings. Just look at the video memory and bit width . The larger the video memory and bit width, the better.
Choosing a solid-state hard drive is much faster than a mechanical hard drive, and it can bring great efficiency improvements to daily drawing design. **Buy a 256G SSD solid state drive, and install the CAD software and operating system in the solid state drive, which can greatly improve the software performance.
For CAD graphics monitors, the main concern is color, resolution, and dot pitch . **Color: **Satisfy, SRGB 99% or more color gamut, 1.07 billion color numbers. Color standard △E value is less than 2.5, brightness: 300cd/㎡——350cd/㎡, static contrast ratio: 1000:1. A display that meets the above requirements is a display with excellent color capabilities.
Summary: CAD mainly has high requirements for CPU and memory, but not high requirements for graphics cards and hard drives. **According to the different industries served, the size of the design drawings is different, **small drawing files can run CAD with a mid-range desktop computer. Large-scale drawing files and newer CAD versions require highly-equipped computers.
to sum up
To be continued. I just wanted to look at it casually, but I didn't expect to watch it for a while. Eat more melons.
In summary.
Choose AMD's 3200G (entry) or 3600 (mid-range) for CPU;
Graphics card is not clear
Memory stick: Kingston’s 3200 8*2;
Hard disk: 512G of Toshiba RC500;
Display: Pursue color gamut and resolution. SANC 24-inch 2K display IPS 75HZ;
Desktops and laptops are compared according to this standard.
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