![2015 27″ iMac 5K (R9 M390) [6th,4C] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.1 [Koncept_Zero] | External GPU Builds 2015 27″ iMac 5K (R9 M390) [6th,4C] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.1 [Koncept_Zero] | External GPU Builds](https://i.imgur.com/HnxmNj0.png)
2015 27″ iMac 5K (R9 M390) [6th,4C] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.1 [Koncept_Zero] | External GPU Builds
![Mac Store UK Apple iMac 27" 2020 - 3.6GHz i9 10 Core - 64GB RAM - 2TB Flash SSD - Radeon Pro 5700 XT 16GB (A) Mac Store UK Apple iMac 27" 2020 - 3.6GHz i9 10 Core - 64GB RAM - 2TB Flash SSD - Radeon Pro 5700 XT 16GB (A)](https://www.macstoreuk.com/wp-content/uploads/2021/04/iMac2020front1stLJeditted.jpg)
Mac Store UK Apple iMac 27" 2020 - 3.6GHz i9 10 Core - 64GB RAM - 2TB Flash SSD - Radeon Pro 5700 XT 16GB (A)
![A random line is displayed on the screen of the iMac in 2020, the cause is AMD Radeon Pro 5700 XT GPU - GIGAZINE A random line is displayed on the screen of the iMac in 2020, the cause is AMD Radeon Pro 5700 XT GPU - GIGAZINE](https://i.gzn.jp/img/2020/08/31/2020-imac-display-glitch-amd-radeo-gpu/00_m.jpg)
A random line is displayed on the screen of the iMac in 2020, the cause is AMD Radeon Pro 5700 XT GPU - GIGAZINE
![Apple Intros 2020 iMac 27-Inch With AMD Radeon Pro 5000 Graphics & Intel's 10th Gen Core i9 10 Core CPUs Apple Intros 2020 iMac 27-Inch With AMD Radeon Pro 5000 Graphics & Intel's 10th Gen Core i9 10 Core CPUs](https://cdn.wccftech.com/wp-content/uploads/2020/08/amd-radeon-pro-5000-series-gpus.png)
Apple Intros 2020 iMac 27-Inch With AMD Radeon Pro 5000 Graphics & Intel's 10th Gen Core i9 10 Core CPUs
![Apple 27 iMac w/ Retina 5K Display - 10th Gen Intel Core i9 10C 3.6GHz, 8GB RAM, 1TB SSD, 5120x2880 (5K), 16GB GDDR6 AMD Radeon Pro 5700 XT, 2x Thunderbolt 3, WiFi, Apple 27 iMac w/ Retina 5K Display - 10th Gen Intel Core i9 10C 3.6GHz, 8GB RAM, 1TB SSD, 5120x2880 (5K), 16GB GDDR6 AMD Radeon Pro 5700 XT, 2x Thunderbolt 3, WiFi,](https://images.highspeedbackbone.net/skuimages/gallery/large/42134349_gallery01_NDG.jpg)