GeForce GT 640M vs GeForce GTX 590

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and GeForce GTX 590. 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 640M and GeForce GTX 590. 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 640M is a Laptop Graphics Card

Note: GeForce GT 640M 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 640M here:

Main Specs

  GeForce GT 640M GeForce GTX 590
Power consumption (TDP) 32 Watt 365 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors Two 8-pin
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 3072 MB (1536 MB per GPU)
Display Connectors No outputs 3x DVI, 1x mini-DisplayPort
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  • GeForce GTX 590 has 1040% more power consumption, than GeForce GT 640M.
  • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 590 uses PCIe 2.0 x16 interface.
  • GeForce GTX 590 has 3070 GB more memory, than GeForce GT 640M.
  • GeForce GT 640M is used in Laptops, and GeForce GTX 590 - in Desktops.
  • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 590 - with Fermi.
  • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce GTX 590 - by 40 nm process technology.
  • Memory clock speed of GeForce GT 640M is 93 MHz higher, than GeForce GTX 590.

Game benchmarks

high / 1080p 0−1 16−18
ultra / 1080p 0−1 10−11
QHD / 1440p 0−1 4−5
low / 720p 10−12 35−40
medium / 1080p 2−3 21−24
The average gaming FPS of GeForce GTX 590 in Assassin's Creed Odyssey is 400% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M GeForce GTX 590
Architecture Kepler Fermi
Code name N13P-GS GF110
Type Laptop Desktop
Release date 22 March 2012 24 March 2011
Pipelines 384 1024
Core clock speed 1215 MHz
Boost Clock 645 MHz
Transistor count 1,270 million 3,000 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 77.7 billion/sec
Floating-point performance 480.0 gflops 2x 1,244.2 gflops
Length 11" (280 mm) (27.9 cm)
Memory bus width 128bit 768-bit (384-bit per GPU)
Memory clock speed 1800 - 4000 MHz 1707 MHz
Memory bandwidth 327.7 GB/s
Shared memory - -
DirectX 12 API 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.2
OpenCL 1.1 1.1
Vulkan 1.1.126 N/A
CUDA + +
CUDA cores 384 1024
Bus support PCI Express 2.0, PCI Express 3.0 16x PCI-E 2.0
Height 4.376" (111 mm) (11.1 cm)
SLI options +
Multi monitor support +
HDMI + +
HDCP +
Maximum VGA resolution Up to 2048x1536 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
Bitcoin / BTC (SHA256) 18 Mh/s 107 Mh/s
Laptop size medium sized
Optimus +
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