Radeon HD 6770 vs Radeon R9 270

If you are going to buy a new graphics card and are choosing between Radeon HD 6770 and Radeon R9 270, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6770 stacks up against Radeon R9 270, check out specs charts below.

Main Specs

  Radeon HD 6770 Radeon R9 270
Power consumption (TDP) 108 Watt 150 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin 1 x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 270 has 38% more power consumption, than Radeon HD 6770.
  • Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon R9 270 uses PCIe 3.0 x16 interface.
  • Radeon R9 270 has 1 GB more memory, than Radeon HD 6770.
  • Both cards are used in Desktops.
  • Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon R9 270 - with GCN 1.0.
  • Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon R9 270 - by 28 nm process technology.
  • Radeon R9 270 is 12 mm longer, than Radeon HD 6770.

Game benchmarks

high / 1080p 3−4 21−24
ultra / 1080p 1−2 12−14
QHD / 1440p 0−1 7−8
4K / 2160p 5−6
low / 720p 14−16 40−45
medium / 1080p 5−6 27−30
The average gaming FPS of Radeon R9 270 in Assassin's Creed Odyssey is 333% more, than Radeon HD 6770.

Full Specs

  Radeon HD 6770 Radeon R9 270
Architecture TeraScale 2 GCN 1.0
Code name Juniper Curacao
Type Desktop Desktop
Release date 21 January 2011 13 November 2013
Pipelines 800 1280
Boost Clock 900 MHz 925 MHz
Transistor count 1,040 million 2,800 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 34.00 74.00
Floating-point performance 1,360.0 gflops 2,368 gflops
Length 198 mm 210 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1050 MHz
Memory bandwidth 76.8 GB/s 179.2 GB/s
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan +
FreeSync +
Bus support PCIe 2.0 x16 PCIe 3.0
HDMI + +
Bitcoin / BTC (SHA256) 118 Mh/s 293 Mh/s
Eyefinity + +
HD3D +
TrueAudio +
Design reference reference
DisplayPort support +
CrossFire + +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 16 Mh/s
LiquidVR +
TressFX +
UVD +
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