Mobility Radeon HD 5850 vs Radeon HD 4870 X2

When choosing between Mobility Radeon HD 5850 and Radeon HD 4870 X2, 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 Mobility Radeon HD 5850 and Radeon HD 4870 X2.

Mobility Radeon HD 5850 is a Laptop Graphics Card

Note: Mobility Radeon HD 5850 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 Mobility Radeon HD 5850 here:

Main Specs

  Mobility Radeon HD 5850 Radeon HD 4870 X2
Power consumption (TDP) 30 Watt 286 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3, GDDR3, GDDR5 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • Radeon HD 4870 X2 has 853% more power consumption, than Mobility Radeon HD 5850.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Mobility Radeon HD 5850 and Radeon HD 4870 X2 have maximum RAM of 1 GB.
  • Mobility Radeon HD 5850 is used in Laptops, and Radeon HD 4870 X2 - in Desktops.
  • Mobility Radeon HD 5850 is build with Terascale 2 architecture, and Radeon HD 4870 X2 - with TeraScale.
  • Core clock speed of Radeon HD 4870 X2 is 75 MHz higher, than Mobility Radeon HD 5850.
  • Mobility Radeon HD 5850 is manufactured by 40 nm process technology, and Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of Radeon HD 4870 X2 is 1600 MHz higher, than Mobility Radeon HD 5850.

Game benchmarks

high / 1080p 5−6 3−4
ultra / 1080p 3−4 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 7−8 6−7
The average gaming FPS of Mobility Radeon HD 5850 in Assassin's Creed Odyssey is 16% more, than Radeon HD 4870 X2.

Full Specs

  Mobility Radeon HD 5850 Radeon HD 4870 X2
Architecture Terascale 2 TeraScale
Code name Broadway-PRO R700
Type Laptop Desktop
Release date 7 January 2010 12 August 2008
Pipelines 800 800
Core clock speed 625 MHz 700 MHz
Transistor count 1,040 million 956 million
Manufacturing process technology 40 nm 55 nm
Texture fill rate 20.00 28.00
Floating-point performance 800.0 gflops 2x 1,120.0 gflops
Length 267 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 2000 MHz 3600 MHz
Memory bandwidth 64 GB/s 115.2 GB/s
Shared memory -
DirectX 11.2 (11_0) 10.1 (10_1)
Shader Model 5.0 4.1
OpenGL 4.4 3.3
OpenCL 1.2 1.1
Vulkan N/A N/A
Laptop size large
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