Radeon HD 6790 vs Radeon R7 250

In this comparison between Radeon HD 6790 and Radeon R7 250 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 6790 will be the best choice, for others Radeon R7 250 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Radeon HD 6790 Radeon R7 250
Power consumption (TDP) 150 Watt 75 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin N/A
Memory type GDDR5 DDR3, GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x VGA
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  • Radeon HD 6790 has 100% more power consumption, than Radeon R7 250.
  • Radeon HD 6790 is connected by PCIe 2.0 x16, and Radeon R7 250 uses PCIe 3.0 x8 interface.
  • Radeon R7 250 has 1 GB more memory, than Radeon HD 6790.
  • Both cards are used in Desktops.
  • Radeon HD 6790 is build with Terascale 2 architecture, and Radeon R7 250 - with GCN.
  • Radeon HD 6790 is manufactured by 40 nm process technology, and Radeon R7 250 - by 28 nm process technology.
  • Radeon HD 6790 is 30 mm longer, than Radeon R7 250.
  • Memory clock speed of Radeon R7 250 is 100 MHz higher, than Radeon HD 6790.

Game benchmarks

high / 1080p 7−8 3−4
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 18−20 14−16
medium / 1080p 9−10 5−6
The average gaming FPS of Radeon HD 6790 in Assassin's Creed Odyssey is 66% more, than Radeon R7 250.

Full Specs

  Radeon HD 6790 Radeon R7 250
Architecture Terascale 2 GCN
Code name Barts Oland XT
Type Desktop Desktop
Release date 4 April 2011 1 October 2013
Pipelines 800 384
Core clock speed 840 MHz
Boost Clock 1050 MHz
Transistor count 1,700 million 950 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 33.60 25.20
Floating-point performance 1,344.0 gflops 716.8 gflops
Length 198 mm 168 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1050 MHz 1150 MHz
Memory bandwidth 134.4 GB/s 72 GB/s
Shared memory -
DirectX 11.2 (11_0)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 122 Mh/s 117 Mh/s
Design reference
CrossFire +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 3 Mh/s
AppAcceleration +
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