GeForce GTX 660 vs GeForce GTX 960

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 and GeForce GTX 960. 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 GeForce GTX 960. 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.

Main Specs

  GeForce GTX 660 GeForce GTX 960
Power consumption (TDP) 140 Watt 120 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors One 6-pin 1x 6-pins
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 3x DisplayPort
Recommended system power (PSU) 400 Watt
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  • GeForce GTX 660 has 16% more power consumption, than GeForce GTX 960.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GTX 960 has 2 GB more memory, than GeForce GTX 660.
  • Both cards are used in Desktops.
  • GeForce GTX 660 is build with Kepler architecture, and GeForce GTX 960 - with Maxwell.
  • Core clock speed of GeForce GTX 960 is 147 MHz higher, than GeForce GTX 660.
  • GeForce GTX 660 and GeForce GTX 960 are manufactured by 28 nm process technology.
  • Both graphics cards are the same length of 9 mm.
  • Memory clock speed of GeForce GTX 960 is 1 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 GeForce GTX 960 in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 GeForce GTX 960
Architecture Kepler Maxwell
Code name GK106 GM206
Type Desktop Desktop
Release date 6 September 2012 22 January 2015
Pipelines 960 1024
Core clock speed 980 MHz 1127 MHz
Boost Clock 1033 MHz 1178 MHz
Transistor count 2,540 million 2,940 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 78.4 billion/sec 72 billion/sec
Floating-point performance 1,981 gflops 2,413 gflops
Length 9.5" (24.1 cm) 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 128 Bit
Memory clock speed 6.0 GB/s 7.0 GB/s
Memory bandwidth 144.2 GB/s 112 GB/s
Shared memory -
G-SYNC support +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.3 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 1.1.126
CUDA + +
Monero / XMR (CryptoNight) 0.27 kh/s
CUDA cores 960 1024
Bus support PCI Express 3.0 PCI Express 3.0
Height 4.376" (11.1 cm) 4.376" (11.1 cm)
SLI options + +
Multi monitor support 4 displays 4 displays
HDMI +
HDCP + +
Maximum VGA resolution 2048x1536 2048x1536
Audio input for HDMI Internal Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s 318 Mh/s
Decred / DCR (Decred) 0.92 Gh/s
Ethereum / ETH (DaggerHashimoto) 8 Mh/s
Zcash / ZEC (Equihash) 141.47 Sol/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
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