GRID K140Q vs Mobility Radeon HD 3870 X2

When comparing GRID K140Q and Mobility Radeon HD 3870 X2, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GRID K140Q and Mobility Radeon HD 3870 X2 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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

  GRID K140Q Mobility Radeon HD 3870 X2
Power consumption (TDP) 130 Watt 110 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Memory type DDR3 GDDR3
Maximum RAM amount 1 GB 512 MB
Display Connectors No outputs No outputs
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  • GRID K140Q has 18% more power consumption, than Mobility Radeon HD 3870 X2.
  • GRID K140Q is connected by PCIe 3.0 x16, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
  • Mobility Radeon HD 3870 X2 has 511 GB more memory, than GRID K140Q.
  • GRID K140Q is used in Desktops, and Mobility Radeon HD 3870 X2 - in Laptops.
  • GRID K140Q is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
  • Core clock speed of GRID K140Q is 190 MHz higher, than Mobility Radeon HD 3870 X2.
  • GRID K140Q is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
  • Memory clock speed of GRID K140Q is 932 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 0−1 6−7
ultra / 1080p 0−1 4−5
QHD / 1440p 0−1 0−1
low / 720p 9−10 16−18
medium / 1080p 1−2 8−9
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 140% more, than GRID K140Q.

Full Specs

  GRID K140Q Mobility Radeon HD 3870 X2
Architecture Kepler RV6xx
Code name GK107 M88-XT CF
Type Workstation Laptop
Release date 28 June 2013 1 September 2008
Pipelines 192 640
Core clock speed 850 MHz 660 MHz
Transistor count 1,270 million 666 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 13.60 10.56
Floating-point performance 326.4 gflops 2x 422.4 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1782 MHz 850 MHz
Memory bandwidth 28.51 GB/s 54.4 GB/s
Shared memory -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.6 3.3
OpenCL 1.2 N/A
Vulkan 1.1.126 N/A
CUDA 3.0
Laptop size large
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