Radeon HD 4870 vs Radeon HD 6950M

When choosing between Radeon HD 4870 and Radeon HD 6950M, 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 and Radeon HD 6950M.

Radeon HD 6950M is a Laptop Graphics Card

Note: Radeon HD 6950M 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 Radeon HD 6950M here:

Main Specs

  Radeon HD 4870 Radeon HD 6950M
Power consumption (TDP) 150 Watt 50 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4870 has 200% more power consumption, than Radeon HD 6950M.
  • Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon HD 6950M uses MXM-B (3.0) interface.
  • Radeon HD 6950M has 1 GB more memory, than Radeon HD 4870.
  • Radeon HD 4870 is used in Desktops, and Radeon HD 6950M - in Laptops.
  • Radeon HD 4870 is build with TeraScale architecture, and Radeon HD 6950M - with Terascale 2.
  • Core clock speed of Radeon HD 4870 is 170 MHz higher, than Radeon HD 6950M.
  • Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 6950M - by 40 nm process technology.
  • Memory clock speed of Radeon HD 4870 is 2700 MHz higher, than Radeon HD 6950M.

Game benchmarks

high / 1080p 3−4 8−9
ultra / 1080p 1−2 5−6
QHD / 1440p 0−1 0−1
low / 720p 14−16 20−22
medium / 1080p 6−7 10−12
The average gaming FPS of Radeon HD 6950M in Assassin's Creed Odyssey is 83% more, than Radeon HD 4870.

Full Specs

  Radeon HD 4870 Radeon HD 6950M
Architecture TeraScale Terascale 2
Code name RV770 Blackcomb Pro
Type Desktop Laptop
Release date 25 June 2008 6 January 2011
Pipelines 800 960
Core clock speed 750 MHz 580 MHz
Transistor count 956 million 1,700 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 30.00 27.84
Floating-point performance 1,200.0 gflops 1,113.6 gflops
Length 250 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3600 MHz 900 MHz
Memory bandwidth 115.2 GB/s 115.2 GB/s
Shared memory -
DirectX 10.1 (10_1) 11.2 (11_0)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
Laptop size large
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