FirePro M7740 vs Mobility Radeon HD 3870 X2

In this comparison between FirePro M7740 and Mobility Radeon HD 3870 X2 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 FirePro M7740 will be the best choice, for others Mobility Radeon HD 3870 X2 will be their preference. Study the comparison tables below and make your choice.

FirePro M7740 and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

Note: FirePro M7740 and Mobility Radeon HD 3870 X2 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 FirePro M7740 or Mobility Radeon HD 3870 X2 here:

Main Specs

  FirePro M7740 Mobility Radeon HD 3870 X2
Power consumption (TDP) 60 Watt 110 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR3
Maximum RAM amount 1 GB 512 MB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 3870 X2 has 83% more power consumption, than FirePro M7740.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Mobility Radeon HD 3870 X2 has 511 GB more memory, than FirePro M7740.
  • FirePro M7740 is used in Mobile workstations, and Mobility Radeon HD 3870 X2 - in Laptops.
  • FirePro M7740 is build with Terascale 1 architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
  • Core clock speed of Mobility Radeon HD 3870 X2 is 10 MHz higher, than FirePro M7740.
  • FirePro M7740 is manufactured by 40 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
  • Memory clock speed of FirePro M7740 is 150 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 6−7 6−7
ultra / 1080p 4−5 4−5
QHD / 1440p 0−1 0−1
low / 720p 16−18 16−18
medium / 1080p 8−9 8−9
FirePro M7740 and Mobility Radeon HD 3870 X2 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  FirePro M7740 Mobility Radeon HD 3870 X2
Architecture Terascale 1 RV6xx
Code name RV740 M88-XT CF
Type Mobile workstation Laptop
Release date 4 August 2009 1 September 2008
Pipelines 640 640
Core clock speed 650 MHz 660 MHz
Transistor count 826 million 666 million
Manufacturing process technology 40 nm 55 nm
Texture fill rate 20.80 10.56
Floating-point performance 832.0 gflops 2x 422.4 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1000 MHz 850 MHz
Memory bandwidth 54.14 GB/s 54.4 GB/s
Shared memory - -
DirectX 10.1 (10_1) 10.1 (10_1)
Shader Model 4.1 4.1
OpenGL 3.3 3.3
OpenCL 1.1 N/A
Vulkan N/A N/A
Laptop size large large
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