Quadro FX 3800 vs Radeon HD 6990

In this comparison between Quadro FX 3800 and Radeon HD 6990 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 FX 3800 will be the best choice, for others Radeon HD 6990 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Quadro FX 3800 Radeon HD 6990
Power consumption (TDP) 108 Watt 375 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin 2x 8-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 1x DVI, 2x DisplayPort 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 247% more power consumption, than Quadro FX 3800.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 6990 has 1 GB more memory, than Quadro FX 3800.
  • Both cards are used in Desktops.
  • Quadro FX 3800 is build with Tesla 2.0 architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of Radeon HD 6990 is 230 MHz higher, than Quadro FX 3800.
  • Quadro FX 3800 is manufactured by 55 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Radeon HD 6990 is 97 mm longer, than Quadro FX 3800.
  • Memory clock speed of Radeon HD 6990 is 3400 MHz higher, than Quadro FX 3800.

Game benchmarks

high / 1080p 0−1 14−16
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 3−4
low / 720p 10−11 30−35
medium / 1080p 1−2 18−20
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 316% more, than Quadro FX 3800.

Full Specs

  Quadro FX 3800 Radeon HD 6990
Architecture Tesla 2.0 TeraScale 3
Code name GT200B Antilles
Type Workstation Desktop
Release date 30 March 2009 8 March 2011
Pipelines 192 1536
Core clock speed 600 MHz 830 MHz
Transistor count 1,400 million 2,640 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 38.40 79.68
Floating-point performance 462.3 gflops 2x 2,549.8 gflops
Length 198 mm 295 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1600 MHz 5000 MHz
Memory bandwidth 51.2 GB/s 160.0 GB/s
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
Bitcoin / BTC (SHA256) 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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