Quadro K4000M vs Radeon HD 6990M Crossfire

In this comparison between Quadro K4000M and Radeon HD 6990M Crossfire you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Quadro K4000M will be the best choice, for others Radeon HD 6990M Crossfire will be their preference. Study the comparison tables below and make your choice.

Quadro K4000M and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Note: Quadro K4000M and Radeon HD 6990M Crossfire 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 Quadro K4000M or Radeon HD 6990M Crossfire here:

Main Specs

  Quadro K4000M Radeon HD 6990M Crossfire
Power consumption (TDP) 100 Watt
Interface MXM-B (3.0)
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2x2 GB
Display Connectors No outputs
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  • Quadro K4000M has 2 GB more memory, than Radeon HD 6990M Crossfire.
  • Quadro K4000M is used in Mobile workstations, and Radeon HD 6990M Crossfire - in Laptops.
  • Quadro K4000M is build with Kepler architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
  • Core clock speed of Radeon HD 6990M Crossfire is 115 MHz higher, than Quadro K4000M.
  • Quadro K4000M is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
  • Memory clock speed of Quadro K4000M is 1900 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 10−11 35−40
ultra / 1080p 6−7 21−24
QHD / 1440p 1−2 16−18
4K / 2160p 10−11
low / 720p 21−24 60−65
medium / 1080p 12−14 40−45
The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 260% more, than Quadro K4000M.

Full Specs

  Quadro K4000M Radeon HD 6990M Crossfire
Architecture Kepler Terascale 2
Code name N14E-Q3 Blackcomb XTX
Type Mobile workstation Laptop
Release date 1 June 2012 12 July 2011
Pipelines 960 2240
Core clock speed 600 MHz 715 MHz
Transistor count 3,540 million 2x1700 Million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 48.08
Floating-point performance 1,154 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 2800 MHz 900 MHz
Memory bandwidth 89.6 GB/s
Shared memory - -
DirectX 12 (11_0) DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
Vulkan 1.1.126
CUDA +
Bitcoin / BTC (SHA256) 37 Mh/s
Laptop size large large
Optimus +
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