P106 100 vs Radeon HD 7990

In this comparison between P106 100 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 P106 100 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

  P106 100 Radeon HD 7990
Power consumption (TDP) 120 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 6 GB 3 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 212% more power consumption, than P106 100.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • P106 100 has 3 GB more memory, than Radeon HD 7990.
  • Both cards are used in Desktops.
  • P106 100 is build with Pascal architecture, and Radeon HD 7990 - with GCN 1.0.
  • Core clock speed of P106 100 is 556 MHz higher, than Radeon HD 7990.
  • P106 100 is manufactured by 16 nm process technology, and Radeon HD 7990 - by 28 nm process technology.
  • Radeon HD 7990 is 57 mm longer, than P106 100.
  • Memory clock speed of P106 100 is 2008 MHz higher, than Radeon HD 7990.

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
P106 100 and Radeon HD 7990 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  P106 100 Radeon HD 7990
Architecture Pascal GCN 1.0
Code name GP106 Malta
Type Desktop Desktop
Release date 19 June 2017 24 April 2013
Pipelines 1280 2048
Core clock speed 1506 MHz 950 MHz
Boost Clock 1709 MHz 1000 MHz
Transistor count 4,400 million 4,313 million
Manufacturing process technology 16 nm 28 nm
Texture fill rate 136.7 128.0
Floating-point performance 4,375 gflops 2x 4,096 gflops
Length 250 mm 307 mm
Memory bus width 192 Bit 384 Bit
Memory clock speed 8008 MHz 6000 MHz
Memory bandwidth 192.2 GB/s 288.0 GB/s
DirectX 12 (12_1) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131 1.2.131
CUDA 6.1
Bitcoin / BTC (SHA256) 459 Mh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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