GeForce GTX 670 vs Radeon HD 6990

In this comparison between GeForce GTX 670 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 GeForce GTX 670 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

  GeForce GTX 670 Radeon HD 6990
Power consumption (TDP) 170 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors Two 6-pin 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 120% more power consumption, than GeForce GTX 670.
  • GeForce GTX 670 is connected by PCIe 3.0 x16, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce GTX 670 and Radeon HD 6990 have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • GeForce GTX 670 is build with Kepler architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce GTX 670 is 150 MHz higher, than Radeon HD 6990.
  • GeForce GTX 670 is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Radeon HD 6990 is 286 mm longer, than GeForce GTX 670.
  • Memory clock speed of Radeon HD 6990 is 4994 MHz higher, than GeForce GTX 670.

Game benchmarks

high / 1080p 35−40 14−16
ultra / 1080p 21−24 9−10
QHD / 1440p 16−18 3−4
4K / 2160p 10−11
low / 720p 60−65 30−35
medium / 1080p 40−45 18−20
The average gaming FPS of GeForce GTX 670 in Assassin's Creed Odyssey is 140% more, than Radeon HD 6990.

Full Specs

  GeForce GTX 670 Radeon HD 6990
Architecture Kepler TeraScale 3
Code name GK104 Antilles
Type Desktop Desktop
Release date 10 May 2012 8 March 2011
Pipelines 1344 1536
Core clock speed 980 MHz 830 MHz
Boost Clock 980 MHz
Transistor count 3,540 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 102.5 billion/sec 79.68
Floating-point performance 2,459.5 gflops 2x 2,549.8 gflops
Length 9.5" (24.1 cm) 295 mm
Memory bus width 256-bit GDDR5 256 Bit
Memory clock speed 6.0 GB/s 5000 MHz
Memory bandwidth 192.2 GB/s 160.0 GB/s
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.2 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1344
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 97 Mh/s 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 13 Mh/s 24 Mh/s
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