Radeon HD 6770 vs Radeon HD 6850 X2

When comparing Radeon HD 6770 and Radeon HD 6850 X2, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 6770 and Radeon HD 6850 X2 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon HD 6770 Radeon HD 6850 X2
Power consumption (TDP) 108 Watt 254 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin 2x 8-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 HD 6850 X2 has 135% more power consumption, than Radeon HD 6770.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 6850 X2 has 1 GB more memory, than Radeon HD 6770.
  • Both cards are used in Desktops.
  • Radeon HD 6770 and Radeon HD 6850 X2 are build with TeraScale 2 architecture.
  • Radeon HD 6770 and Radeon HD 6850 X2 are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 3150 MHz higher, than Radeon HD 6770.

Game benchmarks

high / 1080p 3−4 12−14
ultra / 1080p 1−2 7−8
QHD / 1440p 0−1 2−3
low / 720p 14−16 27−30
medium / 1080p 5−6 16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 166% more, than Radeon HD 6770.

Full Specs

  Radeon HD 6770 Radeon HD 6850 X2
Architecture TeraScale 2 TeraScale 2
Code name Juniper Barts
Type Desktop Desktop
Release date 21 January 2011 19 September 2011
Pipelines 800 960
Core clock speed 800 MHz
Boost Clock 900 MHz
Transistor count 1,040 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 34.00 38.40
Floating-point performance 1,360.0 gflops 2x 1,536.0 gflops
Length 198 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1050 MHz 4200 MHz
Memory bandwidth 76.8 GB/s 134.4 GB/s
DirectX 11.2 (11_0)
Shader Model 5.0 5.0
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan N/A
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 118 Mh/s
Eyefinity +
Design reference
CrossFire +
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