Radeon HD 6850 X2 vs Radeon HD 7950

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6850 X2 and Radeon HD 7950. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6850 X2 and Radeon HD 7950. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Main Specs

  Radeon HD 6850 X2 Radeon HD 7950
Power consumption (TDP) 254 Watt 200 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 3 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 2x mini-DisplayPort
  Check Price
  • Radeon HD 6850 X2 has 27% more power consumption, than Radeon HD 7950.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon HD 7950 uses PCIe 3.0 x16 interface.
  • Radeon HD 7950 has 1 GB more memory, than Radeon HD 6850 X2.
  • Both cards are used in Desktops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon HD 7950 - with GCN 1.0.
  • Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon HD 7950 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 2950 MHz higher, than Radeon HD 7950.

Game benchmarks

high / 1080p 12−14 35−40
ultra / 1080p 7−8 21−24
QHD / 1440p 2−3 16−18
4K / 2160p 10−11
low / 720p 27−30 60−65
medium / 1080p 16−18 40−45
The average gaming FPS of Radeon HD 7950 in Assassin's Creed Odyssey is 176% more, than Radeon HD 6850 X2.

Full Specs

  Radeon HD 6850 X2 Radeon HD 7950
Architecture TeraScale 2 GCN 1.0
Code name Barts Tahiti
Type Desktop Desktop
Release date 19 September 2011 31 January 2012
Pipelines 960 1792
Core clock speed 800 MHz
Boost Clock 1250 MHz
Transistor count 1,700 million 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 38.40 89.60
Floating-point performance 2x 1,536.0 gflops 2,867 gflops
Length 267 mm
Memory bus width 256 Bit 384 Bit
Memory clock speed 4200 MHz 1250 MHz
Memory bandwidth 134.4 GB/s 240 GB/s
DirectX 11.2 (11_0)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A
Monero / XMR (CryptoNight) 0.56 kh/s
FreeSync +
Bus support PCIe 3.0 x16
HDMI +
Bitcoin / BTC (SHA256) 381 Mh/s
Eyefinity +
PowerTune +
ZeroCore +
Design reference
Number of Eyefinity displays 6
CrossFire +
Decred / DCR (Decred) 0.78 Gh/s
Ethereum / ETH (DaggerHashimoto) 13.86 Mh/s
Zcash / ZEC (Equihash) 250 Sol/s
Compute units 28
AppAcceleration +
  Check Price