Radeon HD 7990 vs Radeon HD 8750M

In this comparison between Radeon HD 7990 and Radeon HD 8750M 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 Radeon HD 7990 will be the best choice, for others Radeon HD 8750M will be their preference. Study the comparison tables below and make your choice.

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 7990 Radeon HD 8750M
Power consumption (TDP) 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5, DDR3
Maximum RAM amount 3 GB 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 7990 is connected by PCIe 3.0 x16, and Radeon HD 8750M uses PCIe 3.0 x8 interface.
  • Radeon HD 7990 has 1 GB more memory, than Radeon HD 8750M.
  • Radeon HD 7990 is used in Desktops, and Radeon HD 8750M - in Laptops.
  • Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon HD 8750M - with GCN.
  • Core clock speed of Radeon HD 7990 is 330 MHz higher, than Radeon HD 8750M.
  • Radeon HD 7990 and Radeon HD 8750M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 4000 MHz higher, than Radeon HD 8750M.

Game benchmarks

high / 1080p 35−40 0−1
ultra / 1080p 21−24 0−1
QHD / 1440p 16−18 0−1
4K / 2160p 10−11
low / 720p 60−65 10−12
medium / 1080p 40−45 2−3
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 766% more, than Radeon HD 8750M.

Full Specs

  Radeon HD 7990 Radeon HD 8750M
Architecture GCN 1.0 GCN
Code name Malta Mars Pro
Type Desktop Laptop
Release date 24 April 2013 16 November 2012
Pipelines 2048 384
Core clock speed 950 MHz 620 MHz
Boost Clock 1000 MHz 775 MHz
Transistor count 4,313 million 950 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 128.0 18.60
Floating-point performance 2x 4,096 gflops 595.2 gflops
Length 307 mm
Memory bus width 384 Bit 128 Bit
Memory clock speed 6000 MHz 2000 - 4000 MHz
Memory bandwidth 288.0 GB/s 64 GB/s
Shared memory -
DirectX 12 (11_1) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131 1.2.131
Bitcoin / BTC (SHA256) 459 Mh/s 71 Mh/s
Laptop size medium sized
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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