Mobility Radeon HD 3870 X2 vs Mobility Radeon HD 5830

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 3870 X2 and Mobility Radeon HD 5830, 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 Mobility Radeon HD 5830, check out specs charts below.

Mobility Radeon HD 3870 X2 and Mobility Radeon HD 5830 are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Mobility Radeon HD 5830 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 Mobility Radeon HD 5830 here:

Main Specs

  Mobility Radeon HD 3870 X2 Mobility Radeon HD 5830
Power consumption (TDP) 110 Watt 24 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Memory type GDDR3 DDR3, GDDR3
Maximum RAM amount 512 MB 1 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 3870 X2 has 358% more power consumption, than Mobility Radeon HD 5830.
  • 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 Mobility Radeon HD 5830.
  • Both cards are used in Laptops.
  • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Mobility Radeon HD 5830 - with Terascale 2.
  • Core clock speed of Mobility Radeon HD 3870 X2 is 160 MHz higher, than Mobility Radeon HD 5830.
  • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Mobility Radeon HD 5830 - by 40 nm process technology.
  • Memory clock speed of Mobility Radeon HD 3870 X2 is 50 MHz higher, than Mobility Radeon HD 5830.

Game benchmarks

high / 1080p 6−7 4−5
ultra / 1080p 4−5 2−3
QHD / 1440p 0−1 0−1
low / 720p 16−18 16−18
medium / 1080p 8−9 6−7
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 28% more, than Mobility Radeon HD 5830.

Full Specs

  Mobility Radeon HD 3870 X2 Mobility Radeon HD 5830
Architecture RV6xx Terascale 2
Code name M88-XT CF Broadway
Type Laptop Laptop
Release date 1 September 2008 7 January 2010
Pipelines 640 800
Core clock speed 660 MHz 500 MHz
Transistor count 666 million 1,040 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 10.56 20.00
Floating-point performance 2x 422.4 gflops 800.0 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 850 MHz 800 MHz
Memory bandwidth 54.4 GB/s 25.6 GB/s
Shared memory - -
DirectX 10.1 (10_1) 11.2 (11_0)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL N/A 1.2
Vulkan N/A N/A
Laptop size large large
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