GeForce GTX 660M vs Iris Graphics 6100

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660M and Iris Graphics 6100. 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 GTX 660M and Iris Graphics 6100. 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 GTX 660M and Iris Graphics 6100 are Laptop Graphics Cards

Note: GeForce GTX 660M 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 GTX 660M or Iris Graphics 6100 here:

Main Specs

  GeForce GTX 660M Iris Graphics 6100
Power consumption (TDP) 50 Watt 15 Watt
Interface MXM-B (3.0) PCIe 2.0 x1
Supplementary power connectors None
Memory type GDDR5 System Shared
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 660M has 233% more power consumption, than Iris Graphics 6100.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Iris Graphics 6100 uses PCIe 2.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce GTX 660M is build with Kepler architecture, and Iris Graphics 6100 - with Gen. 8 Broadwell.
  • Core clock speed of GeForce GTX 660M is 535 MHz higher, than Iris Graphics 6100.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Iris Graphics 6100 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 4−5
ultra / 1080p 4−5 3−4
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 5−6
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 50% more, than Iris Graphics 6100.

Full Specs

  GeForce GTX 660M Iris Graphics 6100
Architecture Kepler Gen. 8 Broadwell
Code name N13E-GE Broadwell GT3
Type Laptop Laptop
Release date 22 March 2012 5 January 2015
Pipelines 384 48
Core clock speed 835 MHz 300 MHz
Boost Clock 950 MHz 1100 MHz
Transistor count 1,270 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 52.80
Floating-point performance 729.6 gflops
Memory bus width 128bit 64/128 Bit
Memory clock speed 2000 MHz
Memory bandwidth 64.0 GB/s
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 1.1.126 1.1.80
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 36 Mh/s
Laptop size large
Optimus +
Quick Sync +
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