GeForce GTX 680MX vs Iris Plus Graphics 640

If you are going to buy a new graphics card and are choosing between GeForce GTX 680MX and Iris Plus Graphics 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 680MX stacks up against Iris Plus Graphics 640, check out specs charts below.

GeForce GTX 680MX and Iris Plus Graphics 640 are Laptop Graphics Cards

Note: GeForce GTX 680MX and Iris Plus Graphics 640 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 680MX or Iris Plus Graphics 640 here:

Main Specs

  GeForce GTX 680MX Iris Plus Graphics 640
Power consumption (TDP) 122 Watt 15 Watt
Interface PCIe 3.0 x1
Memory type GDDR5 DDR3L/LPDDR3/DDR4
Maximum RAM amount 2 GB 32 GB
Display Connectors No outputs
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  • GeForce GTX 680MX has 713% more power consumption, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 has 30 GB more memory, than GeForce GTX 680MX.
  • Both cards are used in Laptops.
  • GeForce GTX 680MX is build with Kepler architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of GeForce GTX 680MX is 420 MHz higher, than Iris Plus Graphics 640.
  • GeForce GTX 680MX is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - by 14 nm process technology.

Game benchmarks

high / 1080p 21−24 6−7
ultra / 1080p 12−14 4−5
QHD / 1440p 7−8 0−1
4K / 2160p 5−6
low / 720p 40−45 16−18
medium / 1080p 27−30 8−9
The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 188% more, than Iris Plus Graphics 640.

Full Specs

  GeForce GTX 680MX Iris Plus Graphics 640
Architecture Kepler Gen. 9.5 Kaby Lake
Code name Kaby Lake GT3e
Type Laptop Laptop
Release date 23 October 2012 3 January 2017
Pipelines 1536 48
Core clock speed 720 MHz 300 MHz
Boost Clock 1050 MHz
Transistor count 3540 Million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 92.2 billion/sec 52.80
Memory bus width 256 Bit 64/128 Bit
Memory clock speed 2500 MHz
Memory bandwidth 160 GB/s
Shared memory - +
DirectX 12 API 12 (12_1)
Shader Model 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.1
Vulkan 1.1.103
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0
SLI options +
3D Vision +
Bitcoin / BTC (SHA256) 57 Mh/s
Laptop size large
Optimus +
Quick Sync +
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