GeForce GT 640M vs GeForce GTX 280

When comparing GeForce GT 640M and GeForce GTX 280, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640M and GeForce GTX 280 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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 280
Power consumption (TDP) 32 Watt 236 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 6-pin & 8-pin
Memory type DDR3\GDDR5 GDDR3
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
  Check Price
  • GeForce GTX 280 has 637% more power consumption, than GeForce GT 640M.
  • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 280 uses PCIe 2.0 x16 interface.
  • GeForce GT 640M has 1 GB more memory, than GeForce GTX 280.
  • GeForce GT 640M is used in Laptops, and GeForce GTX 280 - in Desktops.
  • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 280 - with Tesla 2.0.
  • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce GTX 280 - by 65 nm process technology.
  • Memory clock speed of GeForce GT 640M is 693 MHz higher, than GeForce GTX 280.

Game benchmarks

high / 1080p 0−1 1−2
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−12 12−14
medium / 1080p 2−3 3−4
The average gaming FPS of GeForce GTX 280 in Assassin's Creed Odyssey is 33% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M GeForce GTX 280
Architecture Kepler Tesla 2.0
Code name N13P-GS GT200
Type Laptop Desktop
Release date 22 March 2012 16 June 2008
Pipelines 384 240
Core clock speed 1296 MHz
Boost Clock 645 MHz
Transistor count 1,270 million 1,400 million
Manufacturing process technology 28 nm 65 nm
Texture fill rate 48.2 billion/sec
Floating-point performance 480.0 gflops 622.1 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 128bit 512 Bit
Memory clock speed 1800 - 4000 MHz 1107 MHz
Memory bandwidth 141.7 GB/s
Shared memory -
DirectX 12 API 11.1 (10_0)
Shader Model 5.1 4.0
OpenGL 4.5 2.1
OpenCL 1.1 1.1
Vulkan 1.1.126 N/A
CUDA + +
CUDA cores 384 240
Bus support PCI Express 2.0, PCI Express 3.0
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 S/PDIF
3D Blu-Ray +
Bitcoin / BTC (SHA256) 18 Mh/s
Laptop size medium sized
Optimus +
  Check Price