Iris Plus Graphics 640 vs Radeon HD 6850M

If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon HD 6850M, 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 Iris Plus Graphics 640 stacks up against Radeon HD 6850M, check out specs charts below.

Iris Plus Graphics 640 and Radeon HD 6850M are Laptop Graphics Cards

Note: Iris Plus Graphics 640 and Radeon HD 6850M 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 Iris Plus Graphics 640 or Radeon HD 6850M here:

Main Specs

  Iris Plus Graphics 640 Radeon HD 6850M
Power consumption (TDP) 15 Watt 50 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Memory type DDR3L/LPDDR3/DDR4 DDR3, GDDR5
Maximum RAM amount 32 GB 1 GB
Display Connectors No outputs No outputs
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  • Radeon HD 6850M has 233% more power consumption, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon HD 6850M uses PCIe 2.0 x16 interface.
  • Iris Plus Graphics 640 has 31 GB more memory, than Radeon HD 6850M.
  • Both cards are used in Laptops.
  • Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 6850M - with Terascale 2.
  • Core clock speed of Radeon HD 6850M is 275 MHz higher, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon HD 6850M - by 40 nm process technology.

Game benchmarks

high / 1080p 6−7 2−3
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 3−4
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 66% more, than Radeon HD 6850M.

Full Specs

  Iris Plus Graphics 640 Radeon HD 6850M
Architecture Gen. 9.5 Kaby Lake Terascale 2
Code name Kaby Lake GT3e Granville Pro/LP
Type Laptop Laptop
Release date 3 January 2017 6 January 2011
Pipelines 48 800
Core clock speed 300 MHz 575 / 675 MHz
Boost Clock 1050 MHz
Transistor count 189 million 1,040 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 52.80 27.00
Floating-point performance 1,080.0 gflops
Memory bus width 64/128 Bit 128 Bit
Memory clock speed 800 MHz
Memory bandwidth 25.6 GB/s
Shared memory + -
DirectX 12 (12_1) 11.2 (11_0)
Shader Model 6.4 5.0
OpenGL 4.6 4.4
OpenCL 2.1 1.2
Vulkan 1.1.103 N/A
Laptop size large
Quick Sync +
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