Radeon HD 5970 vs Radeon HD 6990M

When comparing Radeon HD 5970 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 Radeon HD 5970 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

  Radeon HD 5970 Radeon HD 6990M
Power consumption (TDP) 294 Watt 100 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 1x 6-pin + 1x 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x mini-DisplayPort No outputs
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  • Radeon HD 5970 has 194% more power consumption, than Radeon HD 6990M.
  • Radeon HD 5970 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 Radeon HD 5970.
  • Radeon HD 5970 is used in Desktops, and Radeon HD 6990M - in Laptops.
  • Radeon HD 5970 is build with TeraScale 2 architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of Radeon HD 5970 is 10 MHz higher, than Radeon HD 6990M.
  • Radeon HD 5970 and Radeon HD 6990M are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 5970 is 3100 MHz higher, than Radeon HD 6990M.

Game benchmarks

high / 1080p 10−12 14−16
ultra / 1080p 6−7 8−9
QHD / 1440p 1−2 3−4
low / 720p 24−27 30−33
medium / 1080p 14−16 16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 36% more, than Radeon HD 5970.

Full Specs

  Radeon HD 5970 Radeon HD 6990M
Architecture TeraScale 2 Terascale 2
Code name Hemlock Blackcomb XTX
Type Desktop Laptop
Release date 18 November 2009 12 July 2011
Pipelines 1600 1120
Core clock speed 725 MHz 715 MHz
Transistor count 2,154 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 58.00 40.04
Floating-point performance 2x 2,320.0 gflops 1,601.6 gflops
Length 305 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 4000 MHz 900 MHz
Memory bandwidth 128.0 GB/s 115.2 GB/s
Shared memory -
DirectX 11.2 (11_0) 11.2 (11_0)
Shader Model 5.0 5.0
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan N/A N/A
Laptop size large
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