Mobility Radeon HD 3870 X2 vs Radeon PRO WX 3100

When choosing between Mobility Radeon HD 3870 X2 and Radeon PRO WX 3100, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Mobility Radeon HD 3870 X2 and Radeon PRO WX 3100.

Mobility Radeon HD 3870 X2 and Radeon PRO WX 3100 are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Radeon PRO WX 3100 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 Mobility Radeon HD 3870 X2 or Radeon PRO WX 3100 here:

Main Specs

  Mobility Radeon HD 3870 X2 Radeon PRO WX 3100
Power consumption (TDP) 110 Watt 65 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 4 GB
Display Connectors No outputs 1x DisplayPort, 2x mini-DisplayPort
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  • Mobility Radeon HD 3870 X2 has 69% more power consumption, than Radeon PRO WX 3100.
  • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon PRO WX 3100 uses PCIe 3.0 x8 interface.
  • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Radeon PRO WX 3100.
  • Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon PRO WX 3100 - in Mobile workstations.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon PRO WX 3100 - with Polaris.
  • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon PRO WX 3100 - by 14 nm process technology.
  • Memory clock speed of Radeon PRO WX 3100 is 5150 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 6−7 14−16
ultra / 1080p 4−5 8−9
QHD / 1440p 0−1 3−4
low / 720p 16−18 27−30
medium / 1080p 8−9 16−18
The average gaming FPS of Radeon PRO WX 3100 in Assassin's Creed Odyssey is 88% more, than Mobility Radeon HD 3870 X2.

Full Specs

  Mobility Radeon HD 3870 X2 Radeon PRO WX 3100
Architecture RV6xx Polaris
Code name M88-XT CF Polaris 12
Type Laptop Mobile workstation
Release date 1 September 2008 21 March 2017
Pipelines 640 512
Core clock speed 660 MHz
Boost Clock 1219 MHz
Transistor count 666 million 2,200 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 10.56 39.01
Floating-point performance 2x 422.4 gflops 1,248 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 850 MHz 6000 MHz
Memory bandwidth 54.4 GB/s 96 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL N/A 2.0
Vulkan N/A 1.2.131
Laptop size large large
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