Radeon HD 6970 vs Radeon R7 M340

In this comparison between Radeon HD 6970 and Radeon R7 M340 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 6970 will be the best choice, for others Radeon R7 M340 will be their preference. Study the comparison tables below and make your choice.

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 6970 Radeon R7 M340
Power consumption (TDP) 550 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 1x 6-pin + 1x 8-pin None
Memory type DDR5 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 6970 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 6970.
  • Radeon HD 6970 is used in Desktops, and Radeon R7 M340 - in Laptops.
  • Radeon HD 6970 is build with Terascale 2 architecture, and Radeon R7 M340 - with GCN.
  • Radeon HD 6970 is manufactured by 40 nm process technology, and Radeon R7 M340 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6970 is 375 MHz higher, than Radeon R7 M340.

Game benchmarks

high / 1080p 14−16 0−1
ultra / 1080p 9−10
QHD / 1440p 3−4 0−1
low / 720p 30−35 1−2
medium / 1080p 18−20 0−1
The average gaming FPS of Radeon HD 6970 in Assassin's Creed Odyssey is 3100% more, than Radeon R7 M340.

Full Specs

  Radeon HD 6970 Radeon R7 M340
Architecture Terascale 2 GCN
Code name Cayman Meso Pro DDR3
Type Desktop Laptop
Release date 14 December 2010 16 June 2015
Pipelines 1536 320
Core clock speed 1021 MHz
Boost Clock 880 MHz 1021 MHz
Transistor count 2,640 million 950 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 84.48 17.16
Floating-point performance 2,703.4 gflops 549.1 gflops
Length 267 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1375 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) 273 Mh/s 74 Mh/s
Eyefinity + +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Design reference
CrossFire +
Compute units 6
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