0, background
2013 Mac Pro commonly known as "trash", Apple's market by the end of 2013 to the launch of a graphics workstation, only one-eighth of the 2010 Mac Pro volume, spike the market all workstations on the volume, but the performance is improving 4 times. Main section main structural layout of a conventional vertical subvert the chassis, composed of three main board vertically enclose a triangle ruler thereby constituting a 9.9 inch high cylindrical structure workstation.
It is this compact design resulting scalability issues, in addition to the memory for the average user, it is difficult to upgrade other components of the machine and designed interfaces (USB3.0 lightning and 2), with graphics (Fire ProD500) such at the time configuration process is mainly used to meet the needs of 4K video.
1. Host Appearance
2019 Host appearance models as shown above on the right side, where most notably metal grater similar as the front panel, this design provides a large cooling surface area and increased air flow into. 
Physical Dimensions
In order to solve the problem chassis cooling, Apple front of the chassis, using three axial fan + turbofan rear of the enclosure composition, talk about the front of the chassis to the three large fans, whose role is to direct the airflow entering via the CPU, Finally, like the original SSD GPU and the hot air discharged from the turbo fan to the lower right. This process is somewhat similar to the outdoor air conditioning unit or a bathroom exhaust fan. But if the high-speed fan up and running will be issued high-frequency vibration, and noise. And this Mac Pro fan after fan blades redesigned and can be adjusted according to changes in the frequency, can make sound becomes smoother, the user can not easily be perceived. This is somewhat similar to that used in car tires mute patterns as (tire noise is there, allowing users to feel more smaller) 
details:
The new Mac Pro in the design draws on some seemingly designed 2010's, amazing place is air-cooled he used to pull off the 28 core + 1.5TB + 32G memory card heat. 
Board using double-sided motherboard design, so much equipment on both sides of a giant board is connected, but can not see a wire, he had to wow people.
2. System Overview
View CPU
查看内存扩展槽
内存：高达 2933MHz DDR4 ECC 内存, 高达 140GB/s 内存带宽, 六通道内存系统（2010款MacPro是三通道）
查看存储-SSD
由两个２TB的SSD组成的Raid０，最高可达 3.4GB/s 的顺序读取速度和 3.4GB/s 的顺序写入速度。存储设备由 Apple T2 安全芯片加密。
SSD读写测试
显卡特点
64 个运算单元、4096 个流处理器
32GB HBM2 显存，1TB/s 显存带宽
最高可达每秒 14.1 万亿次单精度浮点运算，或每秒 28.3 万亿次半精度浮点运算
Infinity Fabric Link 连接支持两个 Vega II 图形处理器以最高可达 84GB/s 的速度进行连接
卡上配有四个雷雳 3 端口和一个 HDMI 2.0 端口
两个可路由至系统的 DisplayPort 连接器，支持内部雷雳 3 端口
加速卡作用： 加快 ProRes 和 ProRes RAW 编解码器在 Final Cut Pro X、QuickTime Player X 和第三方兼容 app 中的运行速度
支持系统播放最多可达 6 条 8K ProRes RAW 视频流，或最多可达 23 条 4K ProRes RAW 视频流。
强大的PCI接口
这台机器配置了八个 PCI Express 扩展插槽,是2010款主机的两倍。通常用户会购买PCI-e转USB3.0的板卡插入，以及PCI-e的SSD及扩展卡，补充原配接口和容量的不足。
输入输出接口：
I/O 卡安装于半长的 x4 PCI Express 插槽内，具备如下端口：
两个 USB 3 端口
支持 USB-A (速率最高可达 5Gb/s)
两个雷雳 3 端口
支持雷雳 3 (速率最高可达 40Gb/s)
支持 USB-C (速率最高可达 10Gb/s)
支持 DisplayPort
两个雷雳 3 端口，位于塔式机箱顶部
Tips:
原厂自带的USB3.1比较少，我们会单独加装一块RocketU 1344A USB 3.1 10GB 扩展卡。支持雷雳 3 (速率最高可达 40Gb/s)，支持 USB-C (速率最高可达 10Gb/s)
万兆网卡
3.安全芯片T2
早在2017年底推出的iMac Pro就已经开始采用了Mac T2芯片，它可以为用户数据提供更加完善的安全防护。举个最简单的例子，多次尝试密码是最简单的XXXX（铭感词，你懂的！），但是在T2 芯片的保护下，超过15此错误密码后，系统会延长等待时间，如果27次输入错误那么等待时间为1小时。一旦尝试密码的次数用尽，那么T2芯片里的Secure enclave（安全隔离区）将不再处理用户的密码请求，也就是机器被锁死。及时是启动系统是强行进入macOS Recovery模式下也无济于事。
经常用Mac系统的小伙伴会知道mac OS 里有软件加密功能FileVault，它会自动直接地对主目录的内容进行加密和解密，经过FileVault加密的硬盘即使是被连接到别的系统中也是无法被读取的。那么在新的Mac中，T2芯片（内置AES硬件加密引擎）可以对整个芯片进行加密，即使没有开启FileVault功能，也可以保护用户数据。
看到这里，用户可能会问如果我把系统原配的硬盘拔下来，换上第三方的硬盘会如何呢？答案是机器无法工作。因为系统的T2芯片已经和硬盘牢牢绑定到一起，换了盘而没动T2芯片，系统无法启动。这是通过硬件层面实现的。所以原配是不能换的。
另外系统里麦克风摄像头也都归T2芯片保护如果有人想扮演中间人的角色从而得到麦克风（通过Siri对机器发出指令）的硬件访问权，要先问问T2 芯片的许可。
所以T2芯片虽然不起眼，但是在整个架构中他的地位并不比CPU、GPU低，如果从安全管理的角度看它甚至算得上更佳重要。
如果管理员用户忘记了密码，那些数据恢复公司是没人赶接着活儿的（也许吧）。
T2应用
主要对硬盘数据加密
4.XDR 6K显示器
This monitor uses aluminum metal body, using 31.6 inches Mini LED backlight 6 K design display resolution of 6016 x 3384. Diagonal measurement value is 31.59 inches, and the aspect ratio is approximately the same as iPhone 11 2.17: 1 Color: P3 wide color gamut, 10-bit color depth, may be implemented 1073000000 kinds of colors. 
The display displays more than iMac Pro beautiful, full-screen brightness: 1000 nits 1600 nits peak, increased pixels iMac Pro than 20%, 5K monitor that is wide version. When using this monitor has a long horizontal time line applications using Final Cut Pro X, the extra horizontal space is very easy for content creators.
The display improved 48% LG Ultra Wide 5K display pixels, without sacrificing vertical resolution, true wide experience. 
Intuitively below at the left side of FIG XDR display using apple open sites, to open the right grape 2K display contrast effect the same site. 
In several applications open feel less.
5. Postscript - recommendations addressed to professional users
Lowest Internet with the Mac Pro is low with a 256GB SSD, which is very embarrassing for individuals and businesses, and even beginners feel less miserable. Minimum with 8-core Xeon, simply X (grateful word) ribs, and his new iMac Pro can almost, AMD 580X graphics card is actually 480 for a vest, has been behind the launch, there is no guarantee that the next five years usage of. If the film is mainly used to cut so low with this is not recommended to buy, if you need to clip 8K video accelerator card must be purchased.
Related information:
l Illustrated Apple workstation -2010 PRO models the MAC https://blog.51cto.com/chenguang/1317923
l 2013 models Mac Pro "mysterious" Detailed host https://blog.51cto.com/chenguang/1355029