Mobility Radeon HD 3870 X2 vs Quadro K4100M

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 3870 X2 and Quadro K4100M, 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 Mobility Radeon HD 3870 X2 stacks up against Quadro K4100M, check out specs charts below.

Mobility Radeon HD 3870 X2 and Quadro K4100M are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Quadro K4100M 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 K4100M here:

Main Specs

  Mobility Radeon HD 3870 X2 Quadro K4100M
Power consumption (TDP) 110 Watt 100 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 10% more power consumption, than Quadro K4100M.
  • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Quadro K4100M uses MXM-B (3.0) interface.
  • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Quadro K4100M.
  • Mobility Radeon HD 3870 X2 is used in Laptops, and Quadro K4100M - in Mobile workstations.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Quadro K4100M - with Kepler.
  • Core clock speed of Quadro K4100M is 46 MHz higher, than Mobility Radeon HD 3870 X2.
  • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Quadro K4100M - by 28 nm process technology.
  • Memory clock speed of Quadro K4100M is 2350 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 6−7 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 16−18 24−27
medium / 1080p 8−9 14−16
The average gaming FPS of Quadro K4100M in Assassin's Creed Odyssey is 66% more, than Mobility Radeon HD 3870 X2.

Full Specs

  Mobility Radeon HD 3870 X2 Quadro K4100M
Architecture RV6xx Kepler
Code name M88-XT CF N15E-Q3-A2
Type Laptop Mobile workstation
Release date 1 September 2008 23 July 2013
Pipelines 640 1152
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 67.78
Floating-point performance 2x 422.4 gflops 1,627 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) 51 Mh/s
Laptop size large large
Optimus +
Display Port 1.2
3D Vision Pro +
Mosaic +
nView Display Management +
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