Iris Graphics 6100 vs Mobility Radeon HD 3870 X2

Find out if it is worth upgrading your current GPU setup by comparing Iris Graphics 6100 and Mobility Radeon HD 3870 X2. 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 Iris Graphics 6100 and Mobility Radeon HD 3870 X2. 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.

Iris Graphics 6100 and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

Note: Iris Graphics 6100 and Mobility Radeon HD 3870 X2 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 Graphics 6100 or Mobility Radeon HD 3870 X2 here:

Main Specs

  Iris Graphics 6100 Mobility Radeon HD 3870 X2
Power consumption (TDP) 15 Watt 110 Watt
Interface PCIe 2.0 x1 PCIe 2.0 x16
Supplementary power connectors None
Memory type System Shared GDDR3
Maximum RAM amount 512 MB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 3870 X2 has 633% more power consumption, than Iris Graphics 6100.
  • Iris Graphics 6100 is connected by PCIe 2.0 x1, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
  • Both cards are used in Laptops.
  • Iris Graphics 6100 is build with Gen. 8 Broadwell architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
  • Core clock speed of Mobility Radeon HD 3870 X2 is 360 MHz higher, than Iris Graphics 6100.
  • Iris Graphics 6100 is manufactured by 14 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.

Game benchmarks

high / 1080p 4−5 6−7
ultra / 1080p 3−4 4−5
QHD / 1440p 0−1 0−1
low / 720p 12−14 16−18
medium / 1080p 5−6 8−9
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 50% more, than Iris Graphics 6100.

Full Specs

  Iris Graphics 6100 Mobility Radeon HD 3870 X2
Architecture Gen. 8 Broadwell RV6xx
Code name Broadwell GT3 M88-XT CF
Type Laptop Laptop
Release date 5 January 2015 1 September 2008
Pipelines 48 640
Core clock speed 300 MHz 660 MHz
Boost Clock 1100 MHz
Transistor count 189 million 666 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 52.80 10.56
Floating-point performance 2x 422.4 gflops
Memory bus width 64/128 Bit 256 Bit
Memory clock speed 850 MHz
Memory bandwidth 54.4 GB/s
Shared memory + -
DirectX 12 (11_1) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.4 3.3
OpenCL 2.0 N/A
Vulkan 1.1.80 N/A
Laptop size large
Quick Sync +
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