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    GeForce 825M vs Mobility Radeon HD 3870 X2

    If you are going to buy a new graphics card and are choosing between GeForce 825M 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 825M stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
    GeForce 825M Check Price
    Mobility Radeon HD 3870 X2 Check Price

    GeForce 825M and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

    Note: GeForce 825M 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 825M or Mobility Radeon HD 3870 X2 here:

    GeForce 825M Laptops
    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce 825M Mobility Radeon HD 3870 X2
    Power consumption (TDP) 33 Watt 110 Watt
    Interface PCIe 3.0 x8 PCIe 2.0 x16
    Supplementary power connectors None
    Memory type DDR3 GDDR3
    Maximum RAM amount 2 GB 512 MB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 has 233% more power consumption, than GeForce 825M.
    • GeForce 825M is connected by PCIe 3.0 x8, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
    • Mobility Radeon HD 3870 X2 has 510 GB more memory, than GeForce 825M.
    • Both cards are used in Laptops.
    • GeForce 825M is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of GeForce 825M is 190 MHz higher, than Mobility Radeon HD 3870 X2.
    • GeForce 825M is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce 825M is 950 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 0−1 6−7
    ultra / 1080p − 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 2−3 16−18
    medium / 1080p 0−1 8−9
    The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 750% more, than GeForce 825M.

    Full Specs

      GeForce 825M Mobility Radeon HD 3870 X2
    Architecture Kepler RV6xx
    Code name GK208 M88-XT CF
    Type Laptop Laptop
    Release date 27 January 2014 1 September 2008
    Pipelines 384 640
    Core clock speed 850 MHz 660 MHz
    Boost Clock 941 MHz
    Transistor count 915 million 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 30.11 10.56
    Floating-point performance 722.7 gflops 2x 422.4 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 1800 MHz 850 MHz
    Memory bandwidth 14.4 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 +
    Laptop size medium sized large
    Optimus +
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