GeForce 9800M GTX SLI vs Mobility Radeon HD 3870 X2

If you are going to buy a new graphics card and are choosing between GeForce 9800M GTX SLI and Mobility Radeon HD 3870 X2, 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 GeForce 9800M GTX SLI stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.

GeForce 9800M GTX SLI and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

Note: GeForce 9800M GTX SLI 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 GeForce 9800M GTX SLI or Mobility Radeon HD 3870 X2 here:

Main Specs

  GeForce 9800M GTX SLI Mobility Radeon HD 3870 X2
Power consumption (TDP) 150 Watt 110 Watt
Interface PCIe 2.0 x16
Memory type GDDR3 GDDR3
Maximum RAM amount 1 GB 512 MB
Display Connectors No outputs
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  • GeForce 9800M GTX SLI has 36% more power consumption, than Mobility Radeon HD 3870 X2.
  • Mobility Radeon HD 3870 X2 has 511 GB more memory, than GeForce 9800M GTX SLI.
  • Both cards are used in Laptops.
  • GeForce 9800M GTX SLI is build with G9x architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
  • Core clock speed of Mobility Radeon HD 3870 X2 is 160 MHz higher, than GeForce 9800M GTX SLI.
  • GeForce 9800M GTX SLI is manufactured by 65 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
  • Memory clock speed of Mobility Radeon HD 3870 X2 is 50 MHz higher, than GeForce 9800M GTX SLI.

Game benchmarks

high / 1080p 10−11 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of GeForce 9800M GTX SLI in Assassin's Creed Odyssey is 44% more, than Mobility Radeon HD 3870 X2.

Full Specs

  GeForce 9800M GTX SLI Mobility Radeon HD 3870 X2
Architecture G9x RV6xx
Code name NB9E-GTX M88-XT CF
Type Laptop Laptop
Release date 15 July 2008 1 September 2008
Pipelines 224 640
Core clock speed 500 MHz 660 MHz
Transistor count 3016 Million 666 million
Manufacturing process technology 65 nm 55 nm
Texture fill rate 10.56
Floating-point performance 2x 422.4 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 800 MHz 850 MHz
Memory bandwidth 54.4 GB/s
Shared memory - -
DirectX DirectX 10, Shader 4.0 10.1 (10_1)
Shader Model 4.1
OpenGL 3.3
OpenCL N/A
Vulkan N/A
CUDA +
SLI options +
Laptop size large large
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