Radeon HD 4870 X2 vs Radeon HD 7850

When choosing between Radeon HD 4870 X2 and Radeon HD 7850, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 4870 X2 and Radeon HD 7850.

Main Specs

  Radeon HD 4870 X2 Radeon HD 7850
Power consumption (TDP) 286 Watt 225 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 4870 X2 has 27% more power consumption, than Radeon HD 7850.
  • Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon HD 7850 uses PCIe 3.0 x16 interface.
  • Radeon HD 7850 has 1 GB more memory, than Radeon HD 4870 X2.
  • Both cards are used in Desktops.
  • Radeon HD 4870 X2 is build with TeraScale architecture, and Radeon HD 7850 - with GCN 1.0.
  • Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon HD 7850 - by 28 nm process technology.
  • Radeon HD 4870 X2 is 57 mm longer, than Radeon HD 7850.
  • Memory clock speed of Radeon HD 4870 X2 is 2400 MHz higher, than Radeon HD 7850.

Game benchmarks

high / 1080p 3−4 18−20
ultra / 1080p 1−2 10−12
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 14−16 35−40
medium / 1080p 6−7 24−27
The average gaming FPS of Radeon HD 7850 in Assassin's Creed Odyssey is 283% more, than Radeon HD 4870 X2.

Full Specs

  Radeon HD 4870 X2 Radeon HD 7850
Architecture TeraScale GCN 1.0
Code name R700 Pitcairn
Type Desktop Desktop
Release date 12 August 2008 5 March 2012
Pipelines 800 1024
Core clock speed 700 MHz
Boost Clock 1000 MHz
Transistor count 956 million 2,800 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 28.00 55.04
Floating-point performance 2x 1,120.0 gflops 1,761 gflops
Length 267 mm 210 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3600 MHz 1200 MHz
Memory bandwidth 115.2 GB/s 153.6 GB/s
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 249 Mh/s
Eyefinity +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 12.5 Mh/s
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