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    GeForce 940MX vs Mobility Radeon HD 3870 X2

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 940MX and Mobility Radeon HD 3870 X2. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce 940MX and Mobility Radeon HD 3870 X2. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce 940MX Check Price
    Mobility Radeon HD 3870 X2 Check Price

    GeForce 940MX and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

    Note: GeForce 940MX 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 940MX or Mobility Radeon HD 3870 X2 here:

    GeForce 940MX Laptops
    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      GeForce 940MX Mobility Radeon HD 3870 X2
    Power consumption (TDP) 23 Watt 110 Watt
    Interface PCIe 3.0 x8 PCIe 2.0 x16
    Supplementary power connectors None
    Memory type DDR3, 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 378% more power consumption, than GeForce 940MX.
    • GeForce 940MX 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 508 GB more memory, than GeForce 940MX.
    • Both cards are used in Laptops.
    • GeForce 940MX is build with Maxwell architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
    • Core clock speed of GeForce 940MX is 462 MHz higher, than Mobility Radeon HD 3870 X2.
    • GeForce 940MX is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
    • Memory clock speed of GeForce 940MX is 3150 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 7−8 6−7
    ultra / 1080p 4−5 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 16−18 16−18
    medium / 1080p 8−9 8−9
    GeForce 940MX and Mobility Radeon HD 3870 X2 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      GeForce 940MX Mobility Radeon HD 3870 X2
    Architecture Maxwell RV6xx
    Code name N16S-GTR-B/S M88-XT CF
    Type Laptop Laptop
    Release date 10 March 2016 1 September 2008
    Pipelines 384 640
    Core clock speed 1122 MHz 660 MHz
    Boost Clock 1242 MHz
    Transistor count 1,870 million 666 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 23.83 10.56
    Floating-point performance 762.6 gflops 2x 422.4 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 4000 MHz 850 MHz
    Memory bandwidth 40.1 GB/s 54.4 GB/s
    Shared memory - -
    DirectX 12 (11_0) 10.1 (10_1)
    Shader Model 5.1 4.1
    OpenGL 4.5 3.3
    OpenCL 1.2 N/A
    Vulkan 1.1 N/A
    CUDA +
    Bus support PCI Express 3.0
    Bitcoin / BTC (SHA256) 102 Mh/s
    Laptop size medium sized large
    Optimus +
    GPU Boost 2.0
    GameWorks +
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