Radeon HD 7950 vs Radeon HD 7990

In this comparison between Radeon HD 7950 and Radeon HD 7990 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 7950 will be the best choice, for others Radeon HD 7990 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Radeon HD 7950 Radeon HD 7990
Power consumption (TDP) 200 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 3 GB 3 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 87% more power consumption, than Radeon HD 7950.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon HD 7950 and Radeon HD 7990 have maximum RAM of 3 GB.
  • Both cards are used in Desktops.
  • Radeon HD 7950 and Radeon HD 7990 are build with GCN 1.0 architecture.
  • Radeon HD 7950 and Radeon HD 7990 are manufactured by 28 nm process technology.
  • Radeon HD 7990 is 40 mm longer, than Radeon HD 7950.
  • Memory clock speed of Radeon HD 7990 is 4750 MHz higher, than Radeon HD 7950.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 7950 and Radeon HD 7990 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 7950 Radeon HD 7990
Architecture GCN 1.0 GCN 1.0
Code name Tahiti Malta
Type Desktop Desktop
Release date 31 January 2012 24 April 2013
Pipelines 1792 2048
Core clock speed 950 MHz
Boost Clock 1250 MHz 1000 MHz
Transistor count 4,313 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 89.60 128.0
Floating-point performance 2,867 gflops 2x 4,096 gflops
Length 267 mm 307 mm
Memory bus width 384 Bit 384 Bit
Memory clock speed 1250 MHz 6000 MHz
Memory bandwidth 240 GB/s 288.0 GB/s
DirectX 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131
Monero / XMR (CryptoNight) 0.56 kh/s
FreeSync +
Bus support PCIe 3.0 x16
HDMI +
Bitcoin / BTC (SHA256) 381 Mh/s 459 Mh/s
Eyefinity +
PowerTune +
ZeroCore +
Design reference
Number of Eyefinity displays 6
CrossFire +
Decred / DCR (Decred) 0.78 Gh/s
Ethereum / ETH (DaggerHashimoto) 13.86 Mh/s 44 Mh/s
Zcash / ZEC (Equihash) 250 Sol/s
Compute units 28
AppAcceleration +
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