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    GeForce GT 650M SLI vs Mobility Radeon HD 3870 X2

    If you are going to buy a new graphics card and are choosing between GeForce GT 650M 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 GT 650M SLI stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
    GeForce GT 650M SLI Check Price
    Mobility Radeon HD 3870 X2 Check Price

    GeForce GT 650M SLI and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

    Note: GeForce GT 650M 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 GT 650M SLI or Mobility Radeon HD 3870 X2 here:

    GeForce GT 650M SLI Laptops
    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce GT 650M SLI Mobility Radeon HD 3870 X2
    Power consumption (TDP) 110 Watt
    Interface PCIe 2.0 x16
    Memory type GDDR5 GDDR3
    Maximum RAM amount 2x2 GB 512 MB
    Display Connectors No outputs
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    • Mobility Radeon HD 3870 X2 has 510 GB more memory, than GeForce GT 650M SLI.
    • Both cards are used in Laptops.
    • GeForce GT 650M SLI is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of GeForce GT 650M SLI is 130 MHz higher, than Mobility Radeon HD 3870 X2.
    • GeForce GT 650M SLI is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce GT 650M SLI is 3150 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 12−14 6−7
    ultra / 1080p 7−8 4−5
    QHD / 1440p 2−3 0−1
    low / 720p 24−27 16−18
    medium / 1080p 14−16 8−9
    The average gaming FPS of GeForce GT 650M SLI in Assassin's Creed Odyssey is 66% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      GeForce GT 650M SLI Mobility Radeon HD 3870 X2
    Architecture Kepler RV6xx
    Code name N13E-GE M88-XT CF
    Type Laptop Laptop
    Release date 22 March 2012 1 September 2008
    Pipelines 768 640
    Core clock speed 790 MHz 660 MHz
    Boost Clock 835 MHz
    Transistor count 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 10.56
    Floating-point performance 2x 422.4 gflops
    Memory bus width 2x 128 Bit 256 Bit
    Memory clock speed 4000 MHz 850 MHz
    Memory bandwidth 54.4 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0 10.1 (10_1)
    Shader Model 4.1
    OpenGL 3.3
    OpenCL N/A
    Vulkan N/A
    CUDA +
    Laptop size medium sized large
    Optimus +
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