Radeon HD 6990 vs Radeon RX Vega 9

If you are going to buy a new graphics card and are choosing between Radeon HD 6990 and Radeon RX Vega 9, 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 6990 stacks up against Radeon RX Vega 9, check out specs charts below.

Radeon RX Vega 9 is a Laptop Graphics Card

Note: Radeon RX Vega 9 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon RX Vega 9 here:

Main Specs

  Radeon HD 6990 Radeon RX Vega 9
Power consumption (TDP) 375 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 is used in Desktops, and Radeon RX Vega 9 - in Laptops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon RX Vega 9 - with Vega.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon RX Vega 9 - by 14 nm process technology.

Game benchmarks

high / 1080p 14−16 12−14
ultra / 1080p 9−10 8−9
QHD / 1440p 3−4 2−3
low / 720p 30−35 27−30
medium / 1080p 18−20 16−18
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 15% more, than Radeon RX Vega 9.

Full Specs

  Radeon HD 6990 Radeon RX Vega 9
Architecture TeraScale 3 Vega
Code name Antilles Vega Raven Ridge
Type Desktop Laptop
Release date 8 March 2011 26 October 2017
Pipelines 1536 576
Core clock speed 830 MHz
Boost Clock 1300 MHz
Transistor count 2,640 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 79.68
Floating-point performance 2x 2,549.8 gflops
Length 295 mm
Memory bus width 256 Bit
Memory clock speed 5000 MHz
Memory bandwidth 160.0 GB/s
Shared memory -
DirectX 11.2 (11_0) DirectX 12_1
Shader Model 5.0
OpenGL 4.4
OpenCL 1.2
Vulkan N/A
Bitcoin / BTC (SHA256) 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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