Radeon HD 6990 vs Radeon HD 8750M

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990 and Radeon HD 8750M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990 and Radeon HD 8750M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 8750M is a Laptop Graphics Card

Note: Radeon HD 8750M 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 8750M here:

Main Specs

  Radeon HD 6990 Radeon HD 8750M
Power consumption (TDP) 375 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5, DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon HD 8750M uses PCIe 3.0 x8 interface.
  • Radeon HD 6990 and Radeon HD 8750M have maximum RAM of 2 GB.
  • Radeon HD 6990 is used in Desktops, and Radeon HD 8750M - in Laptops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon HD 8750M - with GCN.
  • Core clock speed of Radeon HD 6990 is 210 MHz higher, than Radeon HD 8750M.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon HD 8750M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 3000 MHz higher, than Radeon HD 8750M.

Game benchmarks

high / 1080p 14−16 0−1
ultra / 1080p 9−10 0−1
QHD / 1440p 3−4 0−1
low / 720p 30−35 10−12
medium / 1080p 18−20 2−3
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 316% more, than Radeon HD 8750M.

Full Specs

  Radeon HD 6990 Radeon HD 8750M
Architecture TeraScale 3 GCN
Code name Antilles Mars Pro
Type Desktop Laptop
Release date 8 March 2011 16 November 2012
Pipelines 1536 384
Core clock speed 830 MHz 620 MHz
Boost Clock 775 MHz
Transistor count 2,640 million 950 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 79.68 18.60
Floating-point performance 2x 2,549.8 gflops 595.2 gflops
Length 295 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 5000 MHz 2000 - 4000 MHz
Memory bandwidth 160.0 GB/s 64 GB/s
Shared memory -
DirectX 11.2 (11_0) 12 (11_1)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A 1.2.131
Bitcoin / BTC (SHA256) 265 Mh/s 71 Mh/s
Laptop size medium sized
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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