Radeon HD 4870 X2 vs Radeon HD 6950M

When comparing Radeon HD 4870 X2 and Radeon HD 6950M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 4870 X2 and Radeon HD 6950M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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 X2 Radeon HD 6950M
Power consumption (TDP) 286 Watt 50 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 1x 6-pin + 1x 8-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 X2 has 472% more power consumption, than Radeon HD 6950M.
  • Radeon HD 4870 X2 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 X2.
  • Radeon HD 4870 X2 is used in Desktops, and Radeon HD 6950M - in Laptops.
  • Radeon HD 4870 X2 is build with TeraScale architecture, and Radeon HD 6950M - with Terascale 2.
  • Core clock speed of Radeon HD 4870 X2 is 120 MHz higher, than Radeon HD 6950M.
  • Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon HD 6950M - by 40 nm process technology.
  • Memory clock speed of Radeon HD 4870 X2 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 X2.

Full Specs

  Radeon HD 4870 X2 Radeon HD 6950M
Architecture TeraScale Terascale 2
Code name R700 Blackcomb Pro
Type Desktop Laptop
Release date 12 August 2008 6 January 2011
Pipelines 800 960
Core clock speed 700 MHz 580 MHz
Transistor count 956 million 1,700 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 28.00 27.84
Floating-point performance 2x 1,120.0 gflops 1,113.6 gflops
Length 267 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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