GeForce GTX 660 vs Radeon R9 M395

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 and Radeon R9 M395. 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 GTX 660 and Radeon R9 M395. 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 M395 is a Laptop Graphics Card

Note: Radeon R9 M395 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 M395 here:

Main Specs

  GeForce GTX 660 Radeon R9 M395
Power consumption (TDP) 140 Watt
Interface PCIe 3.0 x16
Supplementary power connectors One 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 M395 has 2 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon R9 M395 - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon R9 M395 - with GCN.
  • Core clock speed of GeForce GTX 660 is 146 MHz higher, than Radeon R9 M395.
  • GeForce GTX 660 and Radeon R9 M395 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 M395 is 1244 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 6−7 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 24−27 40−45
The average gaming FPS of Radeon R9 M395 in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 Radeon R9 M395
Architecture Kepler GCN
Code name GK106
Type Desktop Laptop
Release date 6 September 2012 9 June 2015
Pipelines 960 1792
Core clock speed 980 MHz 834 MHz
Boost Clock 1033 MHz
Transistor count 2,540 million 5000 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 78.4 billion/sec
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 256 Bit
Memory clock speed 6.0 GB/s 1250 MHz
Memory bandwidth 144.2 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1
OpenGL 4.3 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126 +
CUDA +
FreeSync +
CUDA cores 960
Bus support PCI Express 3.0 PCIe 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s 336 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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