Iris Plus Graphics 640 vs Radeon HD 7670A

If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon HD 7670A, 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 7670A, check out specs charts below.

Iris Plus Graphics 640 is a Laptop Graphics Card

Note: Iris Plus Graphics 640 is only used in laptop graphics. It has 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 here:

Main Specs

  Iris Plus Graphics 640 Radeon HD 7670A
Power consumption (TDP) 15 Watt 45 Watt
Interface PCIe 3.0 x1 MXM-A (3.0)
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 32 GB 1 GB
Display Connectors No outputs No outputs
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  • Radeon HD 7670A has 200% more power consumption, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon HD 7670A uses MXM-A (3.0) interface.
  • Iris Plus Graphics 640 has 31 GB more memory, than Radeon HD 7670A.
  • Iris Plus Graphics 640 is used in Laptops, and Radeon HD 7670A - in Desktops.
  • Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 7670A - with TeraScale 2.
  • Core clock speed of Radeon HD 7670A is 300 MHz higher, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon HD 7670A - by 40 nm process technology.

Game benchmarks

high / 1080p 6−7 1−2
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 7670A.

Full Specs

  Iris Plus Graphics 640 Radeon HD 7670A
Architecture Gen. 9.5 Kaby Lake TeraScale 2
Code name Kaby Lake GT3e Turks
Type Laptop Desktop
Release date 3 January 2017 5 January 2012
Pipelines 48 480
Core clock speed 300 MHz 600 MHz
Boost Clock 1050 MHz
Transistor count 189 million 716 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 52.80 14.40
Floating-point performance 576.0 gflops
Memory bus width 64/128 Bit 128 Bit
Memory clock speed 4000 MHz
Memory bandwidth 64 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
Quick Sync +
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