Radeon HD 7990 vs Radeon R7 A265

When choosing between Radeon HD 7990 and Radeon R7 A265, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 7990 and Radeon R7 A265.

Main Specs

  Radeon HD 7990 Radeon R7 A265
Power consumption (TDP) 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 8-pin
Memory type 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 R7 A265 uses PCIe 3.0 x8 interface.
  • Radeon HD 7990 has 1 GB more memory, than Radeon R7 A265.
  • Both cards are used in Desktops.
  • Radeon HD 7990 and Radeon R7 A265 are build with GCN 1.0 architecture.
  • Core clock speed of Radeon HD 7990 is 225 MHz higher, than Radeon R7 A265.
  • Radeon HD 7990 and Radeon R7 A265 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 4200 MHz higher, than Radeon R7 A265.

Game benchmarks

high / 1080p 35−40 1−2
ultra / 1080p 21−24 0−1
QHD / 1440p 16−18 0−1
4K / 2160p 10−11
low / 720p 60−65 12−14
medium / 1080p 40−45 3−4
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 683% more, than Radeon R7 A265.

Full Specs

  Radeon HD 7990 Radeon R7 A265
Architecture GCN 1.0 GCN 1.0
Code name Malta Opal
Type Desktop Desktop
Release date 24 April 2013 9 January 2014
Pipelines 2048 384
Core clock speed 950 MHz 725 MHz
Boost Clock 1000 MHz 825 MHz
Transistor count 4,313 million 950 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 128.0 19.80
Floating-point performance 2x 4,096 gflops 633.6 gflops
Length 307 mm
Memory bus width 384 Bit 128 Bit
Memory clock speed 6000 MHz 1800 MHz
Memory bandwidth 288.0 GB/s 28.8 GB/s
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
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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