Radeon HD 4890 vs Radeon HD 6950M

If you are going to buy a new graphics card and are choosing between Radeon HD 4890 and Radeon HD 6950M, 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 4890 stacks up against Radeon HD 6950M, check out specs charts below.

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 4890 Radeon HD 6950M
Power consumption (TDP) 190 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
  Check Price Check Price
  • Radeon HD 4890 has 280% more power consumption, than Radeon HD 6950M.
  • Radeon HD 4890 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 4890.
  • Radeon HD 4890 is used in Desktops, and Radeon HD 6950M - in Laptops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon HD 6950M - with Terascale 2.
  • Core clock speed of Radeon HD 4890 is 270 MHz higher, than Radeon HD 6950M.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon HD 6950M - by 40 nm process technology.
  • Memory clock speed of Radeon HD 4890 is 3000 MHz higher, than Radeon HD 6950M.

Game benchmarks

high / 1080p 7−8 8−9
ultra / 1080p 4−5 5−6
QHD / 1440p 0−1 0−1
low / 720p 16−18 20−22
medium / 1080p 8−9 10−12
The average gaming FPS of Radeon HD 6950M in Assassin's Creed Odyssey is 22% more, than Radeon HD 4890.

Full Specs

  Radeon HD 4890 Radeon HD 6950M
Architecture TeraScale Terascale 2
Code name RV790 Blackcomb Pro
Type Desktop Laptop
Release date 2 April 2009 6 January 2011
Pipelines 800 960
Core clock speed 850 MHz 580 MHz
Transistor count 959 million 1,700 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 34.00 27.84
Floating-point performance 1,360.0 gflops 1,113.6 gflops
Length 241 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3900 MHz 900 MHz
Memory bandwidth 124.8 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
  Check Price Check Price