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    GeForce 840M vs GeForce GT 755M SLI

    When comparing GeForce 840M and GeForce GT 755M SLI, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 840M and GeForce GT 755M SLI is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 840M Check Price
    GeForce GT 755M SLI Check Price

    GeForce 840M and GeForce GT 755M SLI are Laptop Graphics Cards

    Note: GeForce 840M and GeForce GT 755M SLI 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 GT 755M SLI here:

    GeForce 840M Laptops
    GeForce GT 755M SLI Laptops

    Main Specs

      GeForce 840M GeForce GT 755M SLI
    Power consumption (TDP) 33 Watt 2x ~50 Watt
    Interface PCIe 3.0 x8
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 2x 2 GB
    Display Connectors No outputs
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    • GeForce 840M has 1550% more power consumption, than GeForce GT 755M SLI.
    • GeForce 840M has 2 GB more memory, than GeForce GT 755M SLI.
    • Both cards are used in Laptops.
    • GeForce 840M is build with Maxwell architecture, and GeForce GT 755M SLI - with Kepler.
    • Core clock speed of GeForce 840M is 49 MHz higher, than GeForce GT 755M SLI.
    • GeForce 840M and GeForce GT 755M SLI are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 755M SLI is 3400 MHz higher, than GeForce 840M.

    Game benchmarks

    high / 1080p 1−2 14−16
    ultra / 1080p 0−1 8−9
    QHD / 1440p 0−1 2−3
    low / 720p 12−14 30−35
    medium / 1080p 3−4 18−20
    The average gaming FPS of GeForce GT 755M SLI in Assassin's Creed Odyssey is 266% more, than GeForce 840M.

    Full Specs

      GeForce 840M GeForce GT 755M SLI
    Architecture Maxwell Kepler
    Code name N15S-GT N14P-?
    Type Laptop Laptop
    Release date 12 March 2014 1 November 2013
    Pipelines 384 768
    Core clock speed 1029 MHz 980 MHz
    Boost Clock 1124 MHz
    Transistor count 2x 1300 Million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98
    Floating-point performance 863.2 gflops
    Memory bus width 64 Bit 2x 128 Bit
    Memory clock speed 2000 MHz 5400 MHz
    Memory bandwidth 16.02 GB/s
    Shared memory - -
    DirectX 12 (11_0) DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.2
    Vulkan 1.1.126
    CUDA + +
    Bus support PCI Express 2.0, PCI Express 3.0
    Bitcoin / BTC (SHA256) 92 Mh/s
    Laptop size medium sized large
    Optimus +
    GPU Boost 2.0
    GameWorks +
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