Radeon HD 6990 vs Radeon RX Vega 8 Ryzen 4000

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990 and Radeon RX Vega 8 Ryzen 4000. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990 and Radeon RX Vega 8 Ryzen 4000. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon RX Vega 8 Ryzen 4000 is a Laptop Graphics Card

Note: Radeon RX Vega 8 Ryzen 4000 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 8 Ryzen 4000 here:

Main Specs

  Radeon HD 6990 Radeon RX Vega 8 Ryzen 4000
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 8 Ryzen 4000 - in Laptops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon RX Vega 8 Ryzen 4000 - with Vega.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon RX Vega 8 Ryzen 4000 - by 7 nm process technology.

Game benchmarks

high / 1080p 14−16 20−22
ultra / 1080p 9−10 12−14
QHD / 1440p 3−4 6−7
4K / 2160p 5−6
low / 720p 30−35 35−40
medium / 1080p 18−20 24−27
The average gaming FPS of Radeon RX Vega 8 Ryzen 4000 in Assassin's Creed Odyssey is 33% more, than Radeon HD 6990.

Full Specs

  Radeon HD 6990 Radeon RX Vega 8 Ryzen 4000
Architecture TeraScale 3 Vega
Code name Antilles Vega Raven Ridge
Type Desktop Laptop
Release date 8 March 2011 7 January 2020
Pipelines 1536 512
Core clock speed 830 MHz
Boost Clock 1750 MHz
Transistor count 2,640 million
Manufacturing process technology 40 nm 7 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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