![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
![Apple 27" iMac with Retina 5K display, Quad-Core Intel Core i5 3.2GHz, 8GB RAM, 1TB Fusion Drive, AMD Radeon R9 M390 with 2GB of GDDR5 memory, Two Thunderbolt 2 ports, 802.11ac Wi-Fi, Apple 27" iMac with Retina 5K display, Quad-Core Intel Core i5 3.2GHz, 8GB RAM, 1TB Fusion Drive, AMD Radeon R9 M390 with 2GB of GDDR5 memory, Two Thunderbolt 2 ports, 802.11ac Wi-Fi,](https://i.pinimg.com/originals/42/ea/c4/42eac485361505da68319ecb431b142b.jpg)
Apple 27" iMac with Retina 5K display, Quad-Core Intel Core i5 3.2GHz, 8GB RAM, 1TB Fusion Drive, AMD Radeon R9 M390 with 2GB of GDDR5 memory, Two Thunderbolt 2 ports, 802.11ac Wi-Fi,
![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/GQTMaCw.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
![Apple iMac 27" 5k Intel i7 6700k 4.00Ghz 16Gb Ram 1Tb Fusion Drive AMD Radeon R9 M390 2Gb Grahpics OSX Catalina Late 2015 (Renewed): All-in-Ones: Amazon.com.au Apple iMac 27" 5k Intel i7 6700k 4.00Ghz 16Gb Ram 1Tb Fusion Drive AMD Radeon R9 M390 2Gb Grahpics OSX Catalina Late 2015 (Renewed): All-in-Ones: Amazon.com.au](https://m.media-amazon.com/images/I/51jJBtMIWTL.jpg)