Quadro FX 3800 vs Radeon HD 6990M

When comparing Quadro FX 3800 and Radeon HD 6990M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Quadro FX 3800 and Radeon HD 6990M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 6990M is a Laptop Graphics Card

Note: Radeon HD 6990M 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 HD 6990M here:

Main Specs

  Quadro FX 3800 Radeon HD 6990M
Power consumption (TDP) 108 Watt 100 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 1x 6-pin None
Memory type GDDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 1x DVI, 2x DisplayPort No outputs
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  • Quadro FX 3800 has 8% more power consumption, than Radeon HD 6990M.
  • Quadro FX 3800 is connected by PCIe 2.0 x16, and Radeon HD 6990M uses MXM-B (3.0) interface.
  • Radeon HD 6990M has 1 GB more memory, than Quadro FX 3800.
  • Quadro FX 3800 is used in Desktops, and Radeon HD 6990M - in Laptops.
  • Quadro FX 3800 is build with Tesla 2.0 architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of Radeon HD 6990M is 115 MHz higher, than Quadro FX 3800.
  • Quadro FX 3800 is manufactured by 55 nm process technology, and Radeon HD 6990M - by 40 nm process technology.
  • Memory clock speed of Quadro FX 3800 is 700 MHz higher, than Radeon HD 6990M.

Game benchmarks

high / 1080p 0−1 14−16
ultra / 1080p 0−1 8−9
QHD / 1440p 0−1 3−4
low / 720p 10−11 30−33
medium / 1080p 1−2 16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 300% more, than Quadro FX 3800.

Full Specs

  Quadro FX 3800 Radeon HD 6990M
Architecture Tesla 2.0 Terascale 2
Code name GT200B Blackcomb XTX
Type Workstation Laptop
Release date 30 March 2009 12 July 2011
Pipelines 192 1120
Core clock speed 600 MHz 715 MHz
Transistor count 1,400 million 1,700 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 38.40 40.04
Floating-point performance 462.3 gflops 1,601.6 gflops
Length 198 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1600 MHz 900 MHz
Memory bandwidth 51.2 GB/s 115.2 GB/s
Shared memory -
DirectX 11.1 (10_0) 11.2 (11_0)
Shader Model 4.0 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
CUDA 1.3
Laptop size large
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