GeForce 9800M GTS SLI vs GeForce GT 640M LE

When comparing GeForce 9800M GTS SLI and GeForce GT 640M LE, 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 9800M GTS SLI and GeForce GT 640M LE is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 9800M GTS SLI and GeForce GT 640M LE are Laptop Graphics Cards

Note: GeForce 9800M GTS SLI and GeForce GT 640M LE are only used in laptop graphics. They have 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 9800M GTS SLI or GeForce GT 640M LE here:

Main Specs

  GeForce 9800M GTS SLI GeForce GT 640M LE
Power consumption (TDP) 150 Watt 20 Watt
Interface PCIe 2.0 x16
Memory type GDDR3 DDR3\DDR5
Maximum RAM amount 512 MB 2 GB
Display Connectors No outputs
  Check Price Check Price
  • GeForce 9800M GTS SLI has 650% more power consumption, than GeForce GT 640M LE.
  • GeForce 9800M GTS SLI has 510 GB more memory, than GeForce GT 640M LE.
  • Both cards are used in Laptops.
  • GeForce 9800M GTS SLI is build with G9x architecture, and GeForce GT 640M LE - with Fermi / Kepler.
  • GeForce 9800M GTS SLI is manufactured by 55/65 nm process technology, and GeForce GT 640M LE - by 28 nm process technology.
  • Memory clock speed of GeForce GT 640M LE is 1000 MHz higher, than GeForce 9800M GTS SLI.

Game benchmarks

high / 1080p 5−6 0−1
ultra / 1080p 3−4
QHD / 1440p 0−1 0−1
low / 720p 14−16 1−2
medium / 1080p 7−8 0−1
The average gaming FPS of GeForce 9800M GTS SLI in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE.

Full Specs

  GeForce 9800M GTS SLI GeForce GT 640M LE
Architecture G9x Fermi / Kepler
Code name NB9E-GT N13P-LP
Type Laptop Laptop
Release date 15 July 2008 22 March 2012
Pipelines 128 384
Core clock speed 600 MHz
Transistor count 1508 Million 585 million
Manufacturing process technology 55/65 nm 28 nm
Floating-point performance 384.0 gflops
Memory bus width 256 Bit 128bit
Memory clock speed 800 MHz 1800 - 4000 MHz
Shared memory - -
DirectX DirectX 10, Shader 4.0 12 API
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan N/A
CUDA + +
CUDA cores Up to 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s
Laptop size large medium sized
Optimus +
  Check Price Check Price