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    GeForce GTX 850A vs Mobility Radeon HD 3870 X2

    If you are going to buy a new graphics card and are choosing between GeForce GTX 850A 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 850A stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
    GeForce GTX 850A
    Mobility Radeon HD 3870 X2 Check Price

    Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

    Note: Mobility Radeon HD 3870 X2 is only used in laptop graphics. It has 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 here:

    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce GTX 850A Mobility Radeon HD 3870 X2
    Power consumption (TDP) 45 Watt 110 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    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 144% more power consumption, than GeForce GTX 850A.
    • GeForce GTX 850A 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 510 GB more memory, than GeForce GTX 850A.
    • GeForce GTX 850A is used in Desktops, and Mobility Radeon HD 3870 X2 - in Laptops.
    • GeForce GTX 850A is build with Maxwell architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of GeForce GTX 850A is 242 MHz higher, than Mobility Radeon HD 3870 X2.
    • GeForce GTX 850A is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce GTX 850A is 950 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 1−2 6−7
    ultra / 1080p 0−1 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 16−18
    medium / 1080p 3−4 8−9
    The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 66% more, than GeForce GTX 850A.

    Full Specs

      GeForce GTX 850A Mobility Radeon HD 3870 X2
    Architecture Maxwell RV6xx
    Code name GM107 M88-XT CF
    Type Desktop Laptop
    Release date 17 March 2014 1 September 2008
    Pipelines 640 640
    Core clock speed 902 MHz 660 MHz
    Boost Clock 936 MHz
    Transistor count 1,870 million 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 37.44 10.56
    Floating-point performance 1,198 gflops 2x 422.4 gflops
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 1800 MHz 850 MHz
    Memory bandwidth 28.8 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 5.0
    Laptop size large
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