Radeon HD 6990M vs Radeon HD 7750

If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and Radeon HD 7750, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6990M stacks up against Radeon HD 7750, check out specs charts below.

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 6990M Radeon HD 7750
Power consumption (TDP) 100 Watt 75 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6990M has 33% more power consumption, than Radeon HD 7750.
  • Radeon HD 6990M is connected by MXM-B (3.0), and Radeon HD 7750 uses PCIe 3.0 x16 interface.
  • Radeon HD 6990M has 1 GB more memory, than Radeon HD 7750.
  • Radeon HD 6990M is used in Laptops, and Radeon HD 7750 - in Desktops.
  • Radeon HD 6990M is build with Terascale 2 architecture, and Radeon HD 7750 - with GCN 1.0.
  • Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon HD 7750 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7750 is 225 MHz higher, than Radeon HD 6990M.

Game benchmarks

high / 1080p 14−16 7−8
ultra / 1080p 8−9 4−5
QHD / 1440p 3−4 0−1
low / 720p 30−33 18−20
medium / 1080p 16−18 9−10
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 80% more, than Radeon HD 7750.

Full Specs

  Radeon HD 6990M Radeon HD 7750
Architecture Terascale 2 GCN 1.0
Code name Blackcomb XTX Cape Verde
Type Laptop Desktop
Release date 12 July 2011 15 February 2012
Pipelines 1120 512
Core clock speed 715 MHz
Boost Clock 800 MHz
Transistor count 1,700 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 40.04 25.60
Floating-point performance 1,601.6 gflops 819.2 gflops
Length 168 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 900 MHz 1125 MHz
Memory bandwidth 115.2 GB/s 72 GB/s
Shared memory -
DirectX 11.2 (11_0)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 98 Mh/s
Laptop size large
Eyefinity +
Design reference
DisplayPort support +
CrossFire +
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