Mobility Radeon HD 3870 X2 vs Quadro FX 5800

In this comparison between Mobility Radeon HD 3870 X2 and Quadro FX 5800 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 3870 X2 will be the best choice, for others Quadro FX 5800 will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

Note: Mobility Radeon HD 3870 X2 is only used in laptop graphics. It has 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 here:

Main Specs

  Mobility Radeon HD 3870 X2 Quadro FX 5800
Power consumption (TDP) 110 Watt 189 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type GDDR3 GDDR3
Maximum RAM amount 512 MB 4 GB
Display Connectors No outputs 2x DVI, 1x DisplayPort, 1x S-Video
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  • Quadro FX 5800 has 71% more power consumption, than Mobility Radeon HD 3870 X2.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Quadro FX 5800.
  • Mobility Radeon HD 3870 X2 is used in Laptops, and Quadro FX 5800 - in Desktops.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Quadro FX 5800 - with Tesla 2.0.
  • Core clock speed of Mobility Radeon HD 3870 X2 is 50 MHz higher, than Quadro FX 5800.
  • Mobility Radeon HD 3870 X2 and Quadro FX 5800 are manufactured by 55 nm process technology.
  • Memory clock speed of Quadro FX 5800 is 750 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 6−7 3−4
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 16−18 14−16
medium / 1080p 8−9 5−6
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 50% more, than Quadro FX 5800.

Full Specs

  Mobility Radeon HD 3870 X2 Quadro FX 5800
Architecture RV6xx Tesla 2.0
Code name M88-XT CF GT200B
Type Laptop Workstation
Release date 1 September 2008 11 November 2008
Pipelines 640 240
Core clock speed 660 MHz 610 MHz
Transistor count 666 million 1,400 million
Manufacturing process technology 55 nm 55 nm
Texture fill rate 10.56 48.80
Floating-point performance 2x 422.4 gflops 622.1 gflops
Length 267 mm
Memory bus width 256 Bit 512 Bit
Memory clock speed 850 MHz 1600 MHz
Memory bandwidth 54.4 GB/s 102.4 GB/s
Shared memory -
DirectX 10.1 (10_1) 11.1 (10_0)
Shader Model 4.1 4.0
OpenGL 3.3 3.3
OpenCL N/A 1.1
Vulkan N/A N/A
CUDA 1.3
Laptop size large
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