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    GeForce 840M vs GeForce GTX 675M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 840M and GeForce GTX 675M. 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 840M and GeForce GTX 675M. 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 840M Check Price
    GeForce GTX 675M Check Price

    GeForce 840M and GeForce GTX 675M are Laptop Graphics Cards

    Note: GeForce 840M and GeForce GTX 675M 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 840M or GeForce GTX 675M here:

    GeForce 840M Laptops
    GeForce GTX 675M Laptops

    Main Specs

      GeForce 840M GeForce GTX 675M
    Power consumption (TDP) 33 Watt 100 Watt
    Interface PCIe 3.0 x8 MXM-B (3.0)
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 675M has 203% more power consumption, than GeForce 840M.
    • GeForce 840M is connected by PCIe 3.0 x8, and GeForce GTX 675M uses MXM-B (3.0) interface.
    • GeForce 840M has 2 GB more memory, than GeForce GTX 675M.
    • Both cards are used in Laptops.
    • GeForce 840M is build with Maxwell architecture, and GeForce GTX 675M - with Fermi.
    • Core clock speed of GeForce 840M is 409 MHz higher, than GeForce GTX 675M.
    • GeForce 840M is manufactured by 28 nm process technology, and GeForce GTX 675M - by 40 nm process technology.
    • Memory clock speed of GeForce 840M is 500 MHz higher, than GeForce GTX 675M.

    Game benchmarks

    high / 1080p 1−2 10−11
    ultra / 1080p 0−1 6−7
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 21−24
    medium / 1080p 3−4 12−14
    The average gaming FPS of GeForce GTX 675M in Assassin's Creed Odyssey is 150% more, than GeForce 840M.

    Full Specs

      GeForce 840M GeForce GTX 675M
    Architecture Maxwell Fermi
    Code name N15S-GT N13E-GS1
    Type Laptop Laptop
    Release date 12 March 2014 22 March 2012
    Pipelines 384 384
    Core clock speed 1029 MHz 620 MHz
    Boost Clock 1124 MHz
    Transistor count 1,950 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 17.98 39.7 billion/sec
    Floating-point performance 863.2 gflops 952.3 gflops
    Memory bus width 64 Bit 256bit
    Memory clock speed 2000 MHz 1500 MHz
    Memory bandwidth 16.02 GB/s 96.0 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 N/A
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 2.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    Bitcoin / BTC (SHA256) 92 Mh/s 59 Mh/s
    Laptop size medium sized large
    Optimus + +
    GPU Boost 2.0
    GameWorks +
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