GeForce GTX 580 vs Radeon R9 M395X

If you are going to buy a new graphics card and are choosing between GeForce GTX 580 and Radeon R9 M395X, 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 GeForce GTX 580 stacks up against Radeon R9 M395X, check out specs charts below.

Radeon R9 M395X is a Laptop Graphics Card

Note: Radeon R9 M395X 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 M395X here:

Main Specs

  GeForce GTX 580 Radeon R9 M395X
Power consumption (TDP) 244 Watt 250 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors One 6-pin and One 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1536 MB 4 GB
Display Connectors 2x DVI, 1x mini-HDMI No outputs
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  • Radeon R9 M395X has 2% more power consumption, than GeForce GTX 580.
  • GeForce GTX 580 is connected by PCIe 2.0 x16, and Radeon R9 M395X uses PCIe 3.0 x16 interface.
  • GeForce GTX 580 has 1532 GB more memory, than Radeon R9 M395X.
  • GeForce GTX 580 is used in Desktops, and Radeon R9 M395X - in Laptops.
  • GeForce GTX 580 is build with Fermi architecture, and Radeon R9 M395X - with GCN 3.
  • Core clock speed of GeForce GTX 580 is 821 MHz higher, than Radeon R9 M395X.
  • GeForce GTX 580 is manufactured by 40 nm process technology, and Radeon R9 M395X - by 28 nm process technology.
  • Memory clock speed of GeForce GTX 580 is 754 MHz higher, than Radeon R9 M395X.

Game benchmarks

high / 1080p 21−24 24−27
ultra / 1080p 14−16 14−16
QHD / 1440p 8−9 9−10
4K / 2160p 6−7 6−7
low / 720p 40−45 45−50
medium / 1080p 27−30 30−35
The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 10% more, than GeForce GTX 580.

Full Specs

  GeForce GTX 580 Radeon R9 M395X
Architecture Fermi GCN 3
Code name GF110 Amethyst XT
Type Desktop Laptop
Release date 9 November 2010 16 October 2014
Pipelines 512 2048
Core clock speed 1544 MHz 723 MHz
Transistor count 3,000 million 5,000 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 49.4 billion/sec 92.54
Floating-point performance 1,581.1 gflops 2,961 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 384 Bit 256 Bit
Memory clock speed 2004 MHz (4008 data rate) 1250 MHz
Memory bandwidth 192.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 6.3
OpenGL 4.2 4.4
OpenCL 1.1 Not Listed
Vulkan N/A
CUDA +
FreeSync +
CUDA cores 512
Bus support PCI-E 2.0 x 16 PCIe 3.0
Height 4.376" (111 mm) (11.1 cm)
SLI options +
Multi monitor support +
HDMI +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 142 Mh/s 413 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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