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    GeForce 9800M GTS SLI vs GeForce GT 645M

    When comparing GeForce 9800M GTS SLI and GeForce GT 645M, 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 9800M GTS SLI and GeForce GT 645M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 9800M GTS SLI Check Price
    GeForce GT 645M Check Price

    GeForce 9800M GTS SLI and GeForce GT 645M are Laptop Graphics Cards

    Note: GeForce 9800M GTS SLI and GeForce GT 645M 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 9800M GTS SLI or GeForce GT 645M here:

    GeForce 9800M GTS SLI Laptops
    GeForce GT 645M Laptops

    Main Specs

      GeForce 9800M GTS SLI GeForce GT 645M
    Power consumption (TDP) 150 Watt 32 Watt
    Interface PCIe 3.0 x16
    Memory type GDDR3 DDR3\GDDR5
    Maximum RAM amount 512 MB 2 GB
    Display Connectors No outputs
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    • GeForce 9800M GTS SLI has 368% more power consumption, than GeForce GT 645M.
    • GeForce 9800M GTS SLI has 510 GB more memory, than GeForce GT 645M.
    • Both cards are used in Laptops.
    • GeForce 9800M GTS SLI is build with G9x architecture, and GeForce GT 645M - with Kepler.
    • GeForce 9800M GTS SLI is manufactured by 55/65 nm process technology, and GeForce GT 645M - by 28 nm process technology.
    • Memory clock speed of GeForce GT 645M is 1000 MHz higher, than GeForce 9800M GTS SLI.

    Game benchmarks

    high / 1080p 5−6 1−2
    ultra / 1080p 3−4 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 12−14
    medium / 1080p 7−8 2−3
    The average gaming FPS of GeForce 9800M GTS SLI in Assassin's Creed Odyssey is 80% more, than GeForce GT 645M.

    Full Specs

      GeForce 9800M GTS SLI GeForce GT 645M
    Architecture G9x Kepler
    Code name NB9E-GT N13P-GS
    Type Laptop Laptop
    Release date 15 July 2008 22 March 2012
    Pipelines 128 384
    Core clock speed 600 MHz
    Transistor count 1508 Million 1,270 million
    Manufacturing process technology 55/65 nm 28 nm
    Texture fill rate 22.7 billion/sec
    Floating-point performance 544.5 gflops
    Memory bus width 256 Bit 128bit
    Memory clock speed 800 MHz 1800 MHz
    Shared memory - -
    DirectX DirectX 10, Shader 4.0 12 API
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.1
    Vulkan 1.1.126
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size large medium sized
    Optimus +
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