GeForce GT 645M vs GeForce GTX 960

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M 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 GT 645M 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.

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M 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 GeForce GT 645M here:

Main Specs

  GeForce GT 645M GeForce GTX 960
Power consumption (TDP) 32 Watt 120 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pins
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 3x DisplayPort
Recommended system power (PSU) 400 Watt
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  • GeForce GTX 960 has 275% more power consumption, than GeForce GT 645M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GTX 960 has 2 GB more memory, than GeForce GT 645M.
  • GeForce GT 645M is used in Laptops, and GeForce GTX 960 - in Desktops.
  • GeForce GT 645M is build with Kepler architecture, and GeForce GTX 960 - with Maxwell.
  • GeForce GT 645M and GeForce GTX 960 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 645M is 1793 MHz higher, than GeForce GTX 960.

Game benchmarks

high / 1080p 1−2 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 12−14 60−65
medium / 1080p 2−3 40−45
The average gaming FPS of GeForce GTX 960 in Assassin's Creed Odyssey is 840% more, than GeForce GT 645M.

Full Specs

  GeForce GT 645M GeForce GTX 960
Architecture Kepler Maxwell
Code name N13P-GS GM206
Type Laptop Desktop
Release date 22 March 2012 22 January 2015
Pipelines 384 1024
Core clock speed 1127 MHz
Boost Clock 1178 MHz
Transistor count 1,270 million 2,940 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 22.7 billion/sec 72 billion/sec
Floating-point performance 544.5 gflops 2,413 gflops
Length 9.5" (24.1 cm)
Memory bus width 128bit 128 Bit
Memory clock speed 1800 MHz 7.0 GB/s
Memory bandwidth 112 GB/s
Shared memory - -
G-SYNC support +
DirectX 12 API 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 1.1.126
CUDA + +
Monero / XMR (CryptoNight) 0.27 kh/s
CUDA cores 384 1024
Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP + +
Maximum VGA resolution Up to 2048x1536 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
Bitcoin / BTC (SHA256) 19 Mh/s 318 Mh/s
Laptop size medium sized
Optimus +
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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