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    GeForce GTX 680M vs Mobility Radeon HD 3870 X2

    If you are going to buy a new graphics card and are choosing between GeForce GTX 680M 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 GTX 680M stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
    GeForce GTX 680M Check Price
    Mobility Radeon HD 3870 X2 Check Price

    GeForce GTX 680M and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

    Note: GeForce GTX 680M 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 GTX 680M or Mobility Radeon HD 3870 X2 here:

    GeForce GTX 680M Laptops
    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce GTX 680M Mobility Radeon HD 3870 X2
    Power consumption (TDP) 100 Watt 110 Watt
    Interface MXM-B (3.0) PCIe 2.0 x16
    Supplementary power connectors None
    Memory type GDDR5 GDDR3
    Maximum RAM amount 4 GB 512 MB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 has 10% more power consumption, than GeForce GTX 680M.
    • GeForce GTX 680M is connected by MXM-B (3.0), and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
    • Mobility Radeon HD 3870 X2 has 508 GB more memory, than GeForce GTX 680M.
    • Both cards are used in Laptops.
    • GeForce GTX 680M is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of GeForce GTX 680M is 60 MHz higher, than Mobility Radeon HD 3870 X2.
    • GeForce GTX 680M is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce GTX 680M is 950 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 16−18 6−7
    ultra / 1080p 9−10 4−5
    QHD / 1440p 4−5 0−1
    4K / 2160p 4−5 −
    low / 720p 30−35 16−18
    medium / 1080p 20−22 8−9
    The average gaming FPS of GeForce GTX 680M in Assassin's Creed Odyssey is 122% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      GeForce GTX 680M Mobility Radeon HD 3870 X2
    Architecture Kepler RV6xx
    Code name N13E-GTX M88-XT CF
    Type Laptop Laptop
    Release date 4 June 2012 1 September 2008
    Pipelines 1344 640
    Core clock speed 720 MHz 660 MHz
    Boost Clock 758 MHz
    Transistor count 3,540 million 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 80.6 billion/sec 10.56
    Floating-point performance 2,038 gflops 2x 422.4 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 1800 MHz 850 MHz
    Memory bandwidth 115.2 GB/s 54.4 GB/s
    Shared memory - -
    DirectX 12 API 10.1 (10_1)
    Shader Model 5.1 4.1
    OpenGL 4.5 3.3
    OpenCL 1.1 N/A
    Vulkan 1.1.126 N/A
    CUDA +
    CUDA cores 1344
    Bus support PCI Express 3.0
    SLI options +
    Bitcoin / BTC (SHA256) 100 Mh/s
    Laptop size large large
    Optimus +
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