Radeon HD 7970 vs Radeon R9 270

In this comparison between Radeon HD 7970 and Radeon R9 270 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 7970 will be the best choice, for others Radeon R9 270 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Radeon HD 7970 Radeon R9 270
Power consumption (TDP) 300 Watt 150 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin 1 x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 3 GB 2 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 7970 has 100% more power consumption, than Radeon R9 270.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon HD 7970 has 1 GB more memory, than Radeon R9 270.
  • Both cards are used in Desktops.
  • Radeon HD 7970 is build with GCN architecture, and Radeon R9 270 - with GCN 1.0.
  • Radeon HD 7970 and Radeon R9 270 are manufactured by 28 nm process technology.
  • Radeon HD 7970 is 64 mm longer, than Radeon R9 270.

Game benchmarks

high / 1080p 35−40 21−24
ultra / 1080p 21−24 12−14
QHD / 1440p 16−18 7−8
4K / 2160p 10−11 5−6
low / 720p 60−65 40−45
medium / 1080p 40−45 27−30
The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 68% more, than Radeon R9 270.

Full Specs

  Radeon HD 7970 Radeon R9 270
Architecture GCN GCN 1.0
Code name Tahiti XT Curacao
Type Desktop Desktop
Release date 22 December 2011 13 November 2013
Pipelines 2048 1280
Boost Clock 925 MHz 925 MHz
Transistor count 4,313 million 2,800 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 118.4 74.00
Floating-point performance 3,789 gflops 2,368 gflops
Length 274 mm 210 mm
Memory bus width 384 Bit 256 Bit
Memory clock speed 1375 MHz
Memory bandwidth 264 GB/s 179.2 GB/s
Shared memory -
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan +
FreeSync + +
Bus support PCIe 2.1 x16 PCIe 3.0
HDMI + +
Bitcoin / BTC (SHA256) 485 Mh/s 293 Mh/s
Eyefinity + +
HD3D +
TrueAudio +
Design reference reference
DisplayPort support +
CrossFire + +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 20.71 Mh/s 16 Mh/s
LiquidVR +
TressFX +
UVD +
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