Radeon HD 6950 vs Radeon R7 M340

If you are going to buy a new graphics card and are choosing between Radeon HD 6950 and Radeon R7 M340, 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 6950 stacks up against Radeon R7 M340, check out specs charts below.

Radeon R7 M340 is a Laptop Graphics Card

Note: Radeon R7 M340 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 R7 M340 here:

Main Specs

  Radeon HD 6950 Radeon R7 M340
Power consumption (TDP) 500 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin None
Memory type GDDR5 DDR3
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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  • Radeon HD 6950 is connected by PCIe 2.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
  • Radeon R7 M340 has 2 GB more memory, than Radeon HD 6950.
  • Radeon HD 6950 is used in Desktops, and Radeon R7 M340 - in Laptops.
  • Radeon HD 6950 is build with TeraScale 3 architecture, and Radeon R7 M340 - with GCN.
  • Radeon HD 6950 is manufactured by 40 nm process technology, and Radeon R7 M340 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6950 is 250 MHz higher, than Radeon R7 M340.

Game benchmarks

high / 1080p 14−16 0−1
ultra / 1080p 8−9
QHD / 1440p 3−4 0−1
low / 720p 27−30 1−2
medium / 1080p 16−18 0−1
The average gaming FPS of Radeon HD 6950 in Assassin's Creed Odyssey is 2700% more, than Radeon R7 M340.

Full Specs

  Radeon HD 6950 Radeon R7 M340
Architecture TeraScale 3 GCN
Code name Cayman Meso Pro DDR3
Type Desktop Laptop
Release date 14 December 2010 16 June 2015
Pipelines 1408 320
Core clock speed 1021 MHz
Boost Clock 800 MHz 1021 MHz
Transistor count 2,640 million 950 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 70.40 17.16
Floating-point performance 2,252.8 gflops 549.1 gflops
Length 267 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1250 MHz 1000 MHz
Memory bandwidth 16 GB/s
Shared memory -
Shader Model 5.0 5.1
OpenGL 4.4 4.4
OpenCL 1.2 Not Listed
Vulkan +
FreeSync +
Bus support PCIe 2.0 x16 PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 244 Mh/s 74 Mh/s
Eyefinity + +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Design reference
CrossFire +
Compute units 6
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