GeForce GT 640M LE vs Iris Graphics 6100

In this comparison between GeForce GT 640M LE and Iris Graphics 6100 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 640M LE will be the best choice, for others Iris Graphics 6100 will be their preference. Study the comparison tables below and make your choice.

GeForce GT 640M LE and Iris Graphics 6100 are Laptop Graphics Cards

Note: GeForce GT 640M LE and Iris Graphics 6100 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 GT 640M LE or Iris Graphics 6100 here:

Main Specs

  GeForce GT 640M LE Iris Graphics 6100
Power consumption (TDP) 20 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x1
Supplementary power connectors None
Memory type DDR3\DDR5 System Shared
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M LE has 33% more power consumption, than Iris Graphics 6100.
  • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Iris Graphics 6100 uses PCIe 2.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Iris Graphics 6100 - with Gen. 8 Broadwell.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and Iris Graphics 6100 - by 14 nm process technology.

Game benchmarks

high / 1080p 0−1 4−5
ultra / 1080p 3−4
QHD / 1440p 0−1 0−1
low / 720p 1−2 12−14
medium / 1080p 0−1 5−6
The average gaming FPS of Iris Graphics 6100 in Assassin's Creed Odyssey is 1200% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE Iris Graphics 6100
Architecture Fermi / Kepler Gen. 8 Broadwell
Code name N13P-LP Broadwell GT3
Type Laptop Laptop
Release date 22 March 2012 5 January 2015
Pipelines 384 48
Core clock speed 300 MHz
Boost Clock 1100 MHz
Transistor count 585 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 52.80
Floating-point performance 384.0 gflops
Memory bus width 128bit 64/128 Bit
Memory clock speed 1800 - 4000 MHz
Shared memory - +
DirectX 12 API 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.4
OpenCL 1.1 2.0
Vulkan N/A 1.1.80
CUDA +
CUDA cores Up to 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
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