Radeon HD 6990M Crossfire vs Radeon R9 M395

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990M Crossfire and Radeon R9 M395. 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 6990M Crossfire and Radeon R9 M395. 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 HD 6990M Crossfire and Radeon R9 M395 are Laptop Graphics Cards

Note: Radeon HD 6990M Crossfire and Radeon R9 M395 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 M395 here:

Main Specs

  Radeon HD 6990M Crossfire Radeon R9 M395
Memory type GDDR5 GDDR5
Maximum RAM amount 2x2 GB 4 GB
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  • Radeon R9 M395 has 2 GB more memory, than Radeon HD 6990M Crossfire.
  • Both cards are used in Laptops.
  • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and Radeon R9 M395 - with GCN.
  • Core clock speed of Radeon R9 M395 is 119 MHz higher, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and Radeon R9 M395 - by 28 nm process technology.
  • Memory clock speed of Radeon R9 M395 is 350 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 6990M Crossfire and Radeon R9 M395 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 6990M Crossfire Radeon R9 M395
Architecture Terascale 2 GCN
Code name Blackcomb XTX
Type Laptop Laptop
Release date 12 July 2011 9 June 2015
Pipelines 2240 1792
Core clock speed 715 MHz 834 MHz
Transistor count 2x1700 Million 5000 Million
Manufacturing process technology 40 nm 28 nm
Memory bus width 256 Bit 256 Bit
Memory clock speed 900 MHz 1250 MHz
Shared memory - -
DirectX DirectX 11, Shader 5.0
OpenGL 4.4
OpenCL Not Listed
Vulkan +
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 336 Mh/s
Laptop size large large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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