Subscribe to our YouTube channel ×

    GeForce 840M vs GeForce 9800M GT SLI

    When comparing GeForce 840M and GeForce 9800M GT 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 9800M GT 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 9800M GT SLI Check Price

    GeForce 840M and GeForce 9800M GT SLI are Laptop Graphics Cards

    Note: GeForce 840M and GeForce 9800M GT 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 9800M GT SLI here:

    GeForce 840M Laptops
    GeForce 9800M GT SLI Laptops

    Main Specs

      GeForce 840M GeForce 9800M GT SLI
    Power consumption (TDP) 33 Watt 130 Watt
    Interface PCIe 3.0 x8
    Memory type DDR3 GDDR3
    Maximum RAM amount 4 GB 512 MB
    Display Connectors No outputs
      Check Price Check Price
    • GeForce 9800M GT SLI has 293% more power consumption, than GeForce 840M.
    • GeForce 9800M GT SLI has 508 GB more memory, than GeForce 840M.
    • Both cards are used in Laptops.
    • GeForce 840M is build with Maxwell architecture, and GeForce 9800M GT SLI - with G9x.
    • Core clock speed of GeForce 840M is 529 MHz higher, than GeForce 9800M GT SLI.
    • GeForce 840M is manufactured by 28 nm process technology, and GeForce 9800M GT SLI - by 65 nm process technology.
    • Memory clock speed of GeForce 840M is 1200 MHz higher, than GeForce 9800M GT SLI.

    Game benchmarks

    high / 1080p 1−2 5−6
    ultra / 1080p 0−1 3−4
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 14−16
    medium / 1080p 3−4 7−8
    The average gaming FPS of GeForce 9800M GT SLI in Assassin's Creed Odyssey is 50% more, than GeForce 840M.

    Full Specs

      GeForce 840M GeForce 9800M GT SLI
    Architecture Maxwell G9x
    Code name N15S-GT NB9E-GT2
    Type Laptop Laptop
    Release date 12 March 2014 15 July 2008
    Pipelines 384 192
    Core clock speed 1029 MHz 500 MHz
    Boost Clock 1124 MHz
    Transistor count 1508 Million
    Manufacturing process technology 28 nm 65 nm
    Texture fill rate 17.98
    Floating-point performance 863.2 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2000 MHz 800 MHz
    Memory bandwidth 16.02 GB/s
    Shared memory - -
    DirectX 12 (11_0) DirectX 10, Shader 4.0
    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
    SLI options +
    Bitcoin / BTC (SHA256) 92 Mh/s
    Laptop size medium sized large
    Optimus +
    GPU Boost 2.0
    GameWorks +
      Check Price Check Price

    Similar compares