Radeon HD 6990M Crossfire vs Radeon R9 M370X

If you are going to buy a new graphics card and are choosing between Radeon HD 6990M Crossfire and Radeon R9 M370X, 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 6990M Crossfire stacks up against Radeon R9 M370X, check out specs charts below.

Radeon HD 6990M Crossfire and Radeon R9 M370X are Laptop Graphics Cards

Note: Radeon HD 6990M Crossfire and Radeon R9 M370X are only used in laptop graphics. They have 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 HD 6990M Crossfire or Radeon R9 M370X here:

Main Specs

  Radeon HD 6990M Crossfire Radeon R9 M370X
Memory type GDDR5 GDDR5
Maximum RAM amount 2x2 GB 2 GB
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  • Radeon HD 6990M Crossfire and Radeon R9 M370X have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and Radeon R9 M370X - with GCN 1.0.
  • Core clock speed of Radeon R9 M370X is 85 MHz higher, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and Radeon R9 M370X - by 28 nm process technology.
  • Memory clock speed of Radeon R9 M370X is 3600 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 3−4
ultra / 1080p 21−24 1−2
QHD / 1440p 16−18 0−1
4K / 2160p 10−11
low / 720p 60−65 14−16
medium / 1080p 40−45 6−7
The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 583% more, than Radeon R9 M370X.

Full Specs

  Radeon HD 6990M Crossfire Radeon R9 M370X
Architecture Terascale 2 GCN 1.0
Code name Blackcomb XTX Cape Verde
Type Laptop Laptop
Release date 12 July 2011 19 May 2015
Pipelines 2240 640
Core clock speed 715 MHz 800 MHz
Transistor count 2x1700 Million 1500 Million
Manufacturing process technology 40 nm 28 nm
Memory bus width 256 Bit 128 Bit
Memory clock speed 900 MHz 4500 MHz
Shared memory - -
DirectX DirectX 11, Shader 5.0 DirectX 12 (FL 11_1), Shader 5.0
Bitcoin / BTC (SHA256) 125 Mh/s
Laptop size large medium sized
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