GeForce 8800 GTX vs Radeon R9 M390

Find out if it is worth upgrading your current GPU setup by comparing GeForce 8800 GTX 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 GeForce 8800 GTX 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

  GeForce 8800 GTX Radeon R9 M390
Power consumption (TDP) 155 Watt
Interface PCIe 1.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 768 MB 2 GB
Display Connectors 2x DVI, 1x S-Video
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  • GeForce 8800 GTX has 766 GB more memory, than Radeon R9 M390.
  • GeForce 8800 GTX is used in Desktops, and Radeon R9 M390 - in Laptops.
  • GeForce 8800 GTX is build with Tesla architecture, and Radeon R9 M390 - with GCN.
  • GeForce 8800 GTX is manufactured by 90 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 18−20
ultra / 1080p 10−11
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 1−2 35−40
medium / 1080p 0−1 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 3600% more, than GeForce 8800 GTX.

Full Specs

  GeForce 8800 GTX Radeon R9 M390
Architecture Tesla GCN
Code name G80 Pitcairn
Type Desktop Laptop
Release date 8 November 2006 9 June 2015
Pipelines 128 1024
Core clock speed 576 MHz
Transistor count 681 million 5000 Million
Manufacturing process technology 90 nm 28 nm
Texture fill rate 36.8 billion/sec
Floating-point performance 345.6 gflops
Length 270 mm
Memory bus width 384 Bit 256 Bit
Memory clock speed 900 MHz
Memory bandwidth 86.4 GB/s
Shared memory -
DirectX 11.1 (10_0)
Shader Model 4.0
OpenGL 3.3 4.4
OpenCL 1.1 Not Listed
Vulkan N/A
CUDA +
FreeSync +
CUDA cores 575
Bus support PCIe 3.0
SLI options +
Bitcoin / BTC (SHA256) 242 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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