Radeon HD 6970 vs Radeon R9 M390

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6970 and Radeon R9 M390. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6970 and Radeon R9 M390. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon R9 M390 is a Laptop Graphics Card

Note: Radeon R9 M390 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 R9 M390 here:

Main Specs

  Radeon HD 6970 Radeon R9 M390
Power consumption (TDP) 550 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6970 and Radeon R9 M390 have maximum RAM of 2 GB.
  • Radeon HD 6970 is used in Desktops, and Radeon R9 M390 - in Laptops.
  • Radeon HD 6970 is build with Terascale 2 architecture, and Radeon R9 M390 - with GCN.
  • Radeon HD 6970 is manufactured by 40 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks

high / 1080p 14−16 18−20
ultra / 1080p 9−10 10−11
QHD / 1440p 3−4 5−6
4K / 2160p 4−5
low / 720p 30−35 35−40
medium / 1080p 18−20 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 26% more, than Radeon HD 6970.

Full Specs

  Radeon HD 6970 Radeon R9 M390
Architecture Terascale 2 GCN
Code name Cayman Pitcairn
Type Desktop Laptop
Release date 14 December 2010 9 June 2015
Pipelines 1536 1024
Boost Clock 880 MHz
Transistor count 2,640 million 5000 Million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 84.48
Floating-point performance 2,703.4 gflops
Length 267 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1375 MHz
Shared memory -
Shader Model 5.0
OpenGL 4.4 4.4
OpenCL 1.2 Not Listed
FreeSync +
Bus support PCIe 2.0 x16 PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 273 Mh/s 242 Mh/s
Laptop size large
Eyefinity + +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Design reference
CrossFire +
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