Radeon HD 6850 X2 vs Radeon Pro 580X

If you are going to buy a new graphics card and are choosing between Radeon HD 6850 X2 and Radeon Pro 580X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6850 X2 stacks up against Radeon Pro 580X, check out specs charts below.
Radeon HD 6850 X2
Radeon Pro 580X

Main Specs

  Radeon HD 6850 X2 Radeon Pro 580X
Power consumption (TDP) 254 Watt 150 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
 
  • Radeon HD 6850 X2 has 69% more power consumption, than Radeon Pro 580X.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon Pro 580X uses PCIe 3.0 x16 interface.
  • Radeon Pro 580X has 6 GB more memory, than Radeon HD 6850 X2.
  • Both cards are used in Desktops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon Pro 580X - with GCN 4.0.
  • Core clock speed of Radeon Pro 580X is 300 MHz higher, than Radeon HD 6850 X2.
  • Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 580X is 2580 MHz higher, than Radeon HD 6850 X2.

Game benchmarks

high / 1080p 12−14 35−40
ultra / 1080p 7−8 24−27
QHD / 1440p 2−3 18−20
4K / 2160p 10−12
low / 720p 27−30 60−65
medium / 1080p 16−18 45−50
The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 192% more, than Radeon HD 6850 X2.

Full Specs

  Radeon HD 6850 X2 Radeon Pro 580X
Architecture TeraScale 2 GCN 4.0
Code name Barts Polaris 20
Type Desktop Workstation
Release date 19 September 2011 18 March 2019
Pipelines 960 2304
Core clock speed 800 MHz 1100 MHz
Boost Clock 1200 MHz
Transistor count 1,700 million 5,700 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 38.40 172.8
Floating-point performance 2x 1,536.0 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 4200 MHz 6780 MHz
Memory bandwidth 134.4 GB/s 217.0 GB/s
DirectX 11.2 (11_0) 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2.131