Mobility Radeon HD 3870 X2 vs Quadro K3100M

When choosing between Mobility Radeon HD 3870 X2 and Quadro K3100M, 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 Quadro K3100M.

Mobility Radeon HD 3870 X2 and Quadro K3100M are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Quadro K3100M 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 Quadro K3100M here:

Main Specs

  Mobility Radeon HD 3870 X2 Quadro K3100M
Power consumption (TDP) 110 Watt 75 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 4 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 3870 X2 has 46% more power consumption, than Quadro K3100M.
  • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Quadro K3100M uses MXM-B (3.0) interface.
  • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Quadro K3100M.
  • Mobility Radeon HD 3870 X2 is used in Laptops, and Quadro K3100M - in Mobile workstations.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Quadro K3100M - with Kepler.
  • Core clock speed of Quadro K3100M is 46 MHz higher, than Mobility Radeon HD 3870 X2.
  • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Quadro K3100M - by 28 nm process technology.
  • Memory clock speed of Quadro K3100M is 2350 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 6−7 10−12
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 1−2
low / 720p 16−18 24−27
medium / 1080p 8−9 14−16
The average gaming FPS of Quadro K3100M in Assassin's Creed Odyssey is 55% more, than Mobility Radeon HD 3870 X2.

Full Specs

  Mobility Radeon HD 3870 X2 Quadro K3100M
Architecture RV6xx Kepler
Code name M88-XT CF N15E-Q1-A2
Type Laptop Mobile workstation
Release date 1 September 2008 23 July 2013
Pipelines 640 768
Core clock speed 660 MHz 706 MHz
Transistor count 666 million 3,540 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 10.56 45.18
Floating-point performance 2x 422.4 gflops 1,084 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 850 MHz 3200 MHz
Memory bandwidth 54.4 GB/s 102.4 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12
Shader Model 4.1 5
OpenGL 3.3 4.5
OpenCL N/A 1.2
Vulkan N/A 1.1.126
CUDA +
Bitcoin / BTC (SHA256) 44 Mh/s
Laptop size large large
Optimus +
Display Port 1.2
3D Vision Pro +
Mosaic +
nView Display Management +
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