GeForce GTX 660 Ti vs Radeon R9 M395X

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 Ti and Radeon R9 M395X. 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 Ti and Radeon R9 M395X. 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 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 660 Ti Radeon R9 M395X
Power consumption (TDP) 150 Watt 250 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors Two 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon R9 M395X has 66% more power consumption, than GeForce GTX 660 Ti.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 M395X has 2 GB more memory, than GeForce GTX 660 Ti.
  • GeForce GTX 660 Ti is used in Desktops, and Radeon R9 M395X - in Laptops.
  • GeForce GTX 660 Ti is build with Kepler architecture, and Radeon R9 M395X - with GCN 3.
  • Core clock speed of GeForce GTX 660 Ti is 192 MHz higher, than Radeon R9 M395X.
  • GeForce GTX 660 Ti and Radeon R9 M395X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 M395X is 1244 MHz higher, than GeForce GTX 660 Ti.

Game benchmarks

high / 1080p 21−24 24−27
ultra / 1080p 12−14 14−16
QHD / 1440p 8−9 9−10
4K / 2160p 5−6 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 660 Ti.

Full Specs

  GeForce GTX 660 Ti Radeon R9 M395X
Architecture Kepler GCN 3
Code name GK104 Amethyst XT
Type Desktop Laptop
Release date 16 August 2012 16 October 2014
Pipelines 1344 2048
Core clock speed 915 MHz 723 MHz
Boost Clock 980 MHz
Transistor count 3,540 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 102.5 billion/sec 92.54
Floating-point performance 2,459.5 gflops 2,961 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 160.0 GB/s
Shared memory - -
DirectX 12 (11_0)
Shader Model 5.1 6.3
OpenGL 4.3 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
CUDA cores 1344
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) 99 Mh/s 413 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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