Radeon HD 6770 vs Radeon HD 7850M

If you are going to buy a new graphics card and are choosing between Radeon HD 6770 and Radeon HD 7850M, 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 HD 7850M, check out specs charts below.

Radeon HD 7850M is a Laptop Graphics Card

Note: Radeon HD 7850M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 7850M here:

Main Specs

  Radeon HD 6770 Radeon HD 7850M
Power consumption (TDP) 108 Watt 40 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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  • Radeon HD 6770 has 170% more power consumption, than Radeon HD 7850M.
  • Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon HD 7850M uses PCIe 3.0 x16 interface.
  • Radeon HD 7850M has 1 GB more memory, than Radeon HD 6770.
  • Radeon HD 6770 is used in Desktops, and Radeon HD 7850M - in Laptops.
  • Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon HD 7850M - with GCN.
  • Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon HD 7850M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850M is 2950 MHz higher, than Radeon HD 6770.

Game benchmarks

high / 1080p 3−4 6−7
ultra / 1080p 1−2 3−4
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 5−6 7−8
The average gaming FPS of Radeon HD 7850M in Assassin's Creed Odyssey is 33% more, than Radeon HD 6770.

Full Specs

  Radeon HD 6770 Radeon HD 7850M
Architecture TeraScale 2 GCN
Code name Juniper Heathrow Pro
Type Desktop Laptop
Release date 21 January 2011 24 April 2012
Pipelines 800 640
Core clock speed 675 MHz
Boost Clock 900 MHz
Transistor count 1,040 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 34.00 27.00
Floating-point performance 1,360.0 gflops 864.0 gflops
Length 198 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1050 MHz 4000 MHz
Memory bandwidth 76.8 GB/s 64 GB/s
Shared memory -
DirectX 12 (11_1)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 118 Mh/s
Laptop size large
Eyefinity +
Design reference
CrossFire +
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