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    GeForce GTX 670MX vs Mobility Radeon HD 3870 X2

    If you are going to buy a new graphics card and are choosing between GeForce GTX 670MX 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 670MX stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
    GeForce GTX 670MX Check Price
    Mobility Radeon HD 3870 X2 Check Price

    GeForce GTX 670MX and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

    Note: GeForce GTX 670MX 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 670MX or Mobility Radeon HD 3870 X2 here:

    GeForce GTX 670MX Laptops
    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce GTX 670MX Mobility Radeon HD 3870 X2
    Power consumption (TDP) 75 Watt 110 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    Memory type GDDR5 GDDR3
    Maximum RAM amount 3 GB 512 MB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 has 46% more power consumption, than GeForce GTX 670MX.
    • GeForce GTX 670MX 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 509 GB more memory, than GeForce GTX 670MX.
    • Both cards are used in Laptops.
    • GeForce GTX 670MX is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of Mobility Radeon HD 3870 X2 is 60 MHz higher, than GeForce GTX 670MX.
    • GeForce GTX 670MX is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce GTX 670MX is 550 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 8−9 6−7
    ultra / 1080p 5−6 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 20−22 16−18
    medium / 1080p 10−12 8−9
    The average gaming FPS of GeForce GTX 670MX in Assassin's Creed Odyssey is 22% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      GeForce GTX 670MX Mobility Radeon HD 3870 X2
    Architecture Kepler RV6xx
    Code name N13E-GR M88-XT CF
    Type Laptop Laptop
    Release date 1 October 2012 1 September 2008
    Pipelines 960 640
    Core clock speed 600 MHz 660 MHz
    Transistor count 3,540 million 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 48.0 billion/sec 10.56
    Floating-point performance 1,154 gflops 2x 422.4 gflops
    Memory bus width 192 Bit 256 Bit
    Memory clock speed 1400 MHz 850 MHz
    Memory bandwidth 67.2 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 960
    Bus support PCI Express 2.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    Laptop size large large
    Optimus +
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