Radeon HD 7990 vs Radeon Pro 580X

If you are going to buy a new graphics card and are choosing between Radeon HD 7990 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 7990 stacks up against Radeon Pro 580X, check out specs charts below.

Main Specs

  Radeon HD 7990 Radeon Pro 580X
Power consumption (TDP) 375 Watt 150 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 3 GB 8 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 7990 has 150% more power consumption, than Radeon Pro 580X.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon Pro 580X has 5 GB more memory, than Radeon HD 7990.
  • Both cards are used in Desktops.
  • Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon Pro 580X - with GCN 4.0.
  • Core clock speed of Radeon Pro 580X is 150 MHz higher, than Radeon HD 7990.
  • Radeon HD 7990 is manufactured by 28 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 580X is 780 MHz higher, than Radeon HD 7990.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 24−27
QHD / 1440p 16−18 18−20
4K / 2160p 10−11 10−12
low / 720p 60−65 60−65
medium / 1080p 40−45 45−50
The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 3% more, than Radeon HD 7990.

Full Specs

  Radeon HD 7990 Radeon Pro 580X
Architecture GCN 1.0 GCN 4.0
Code name Malta Polaris 20
Type Desktop Workstation
Release date 24 April 2013 18 March 2019
Pipelines 2048 2304
Core clock speed 950 MHz 1100 MHz
Boost Clock 1000 MHz 1200 MHz
Transistor count 4,313 million 5,700 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 128.0 172.8
Floating-point performance 2x 4,096 gflops
Length 307 mm
Memory bus width 384 Bit 256 Bit
Memory clock speed 6000 MHz 6780 MHz
Memory bandwidth 288.0 GB/s 217.0 GB/s
DirectX 12 (11_1) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
Bitcoin / BTC (SHA256) 459 Mh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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