Radeon HD 4870 X2 vs Radeon HD 6850

If you are going to buy a new graphics card and are choosing between Radeon HD 4870 X2 and Radeon HD 6850, 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 4870 X2 stacks up against Radeon HD 6850, check out specs charts below.

Main Specs

  Radeon HD 4870 X2 Radeon HD 6850
Power consumption (TDP) 286 Watt 127 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors 2x DVI, 1x S-Video 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 4870 X2 has 125% more power consumption, than Radeon HD 6850.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 4870 X2 and Radeon HD 6850 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Radeon HD 4870 X2 is build with TeraScale architecture, and Radeon HD 6850 - with TeraScale 2.
  • Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon HD 6850 - by 40 nm process technology.
  • Radeon HD 4870 X2 is 69 mm longer, than Radeon HD 6850.

Game benchmarks

high / 1080p 3−4 9−10
ultra / 1080p 1−2 5−6
QHD / 1440p 0−1 0−1
low / 720p 14−16 21−24
medium / 1080p 6−7 12−14
The average gaming FPS of Radeon HD 6850 in Assassin's Creed Odyssey is 100% more, than Radeon HD 4870 X2.

Full Specs

  Radeon HD 4870 X2 Radeon HD 6850
Architecture TeraScale TeraScale 2
Code name R700 Barts
Type Desktop Desktop
Release date 12 August 2008 21 October 2010
Pipelines 800 960
Core clock speed 700 MHz
Transistor count 956 million 1,700 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 28.00 37.20
Floating-point performance 2x 1,120.0 gflops 1,488.0 gflops
Length 267 mm 198 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3600 MHz
Memory bandwidth 115.2 GB/s 128.0 GB/s
DirectX 10.1 (10_1)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A
Bus support AGP
Bitcoin / BTC (SHA256) 139 Mh/s
Eyefinity +
Design reference
CrossFire +
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