Mobility Radeon HD 3870 X2 vs Quadro M520

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 3870 X2 and Quadro M520, 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 M520, check out specs charts below.

Mobility Radeon HD 3870 X2 and Quadro M520 are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Quadro M520 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 M520 here:

Main Specs

  Mobility Radeon HD 3870 X2 Quadro M520
Power consumption (TDP) 110 Watt 25 Watt
Interface PCIe 2.0 x16
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 2 GB
Display Connectors No outputs
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  • Mobility Radeon HD 3870 X2 has 340% more power consumption, than Quadro M520.
  • Mobility Radeon HD 3870 X2 has 510 GB more memory, than Quadro M520.
  • Mobility Radeon HD 3870 X2 is used in Laptops, and Quadro M520 - in Mobile workstations.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Quadro M520 - with Maxwell.
  • Core clock speed of Quadro M520 is 96 MHz higher, than Mobility Radeon HD 3870 X2.
  • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Quadro M520 - by 28 nm process technology.

Game benchmarks

high / 1080p 6−7 9−10
ultra / 1080p 4−5 5−6
QHD / 1440p 0−1 0−1
low / 720p 16−18 21−24
medium / 1080p 8−9 12−14
The average gaming FPS of Quadro M520 in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 3870 X2.

Full Specs

  Mobility Radeon HD 3870 X2 Quadro M520
Architecture RV6xx Maxwell
Code name M88-XT CF
Type Laptop Mobile workstation
Release date 1 September 2008 13 January 2017
Pipelines 640 384
Core clock speed 660 MHz 756 MHz
Boost Clock 1019 MHz
Transistor count 666 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 10.56
Floating-point performance 2x 422.4 gflops
Memory bus width 256 Bit 64 Bit
Memory clock speed 850 MHz
Memory bandwidth 54.4 GB/s 40 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12
Shader Model 4.1 5.0
OpenGL 3.3 4.5
OpenCL N/A
Vulkan N/A
Laptop size large medium sized
Optimus +
nView Display Management +
3D Stereo +
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