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    GeForce 9800 GTX vs GeForce GT 645M

    When comparing GeForce 9800 GTX 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 9800 GTX 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 9800 GTX
    GeForce GT 645M Check Price

    GeForce GT 645M is a Laptop Graphics Card

    Note: GeForce GT 645M is only used in laptop graphics. It has 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 GT 645M here:

    GeForce GT 645M Laptops

    Main Specs

      GeForce 9800 GTX GeForce GT 645M
    Power consumption (TDP) 140 Watt 32 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Supplementary power connectors 2x 6-pin
    Memory type GDDR3 DDR3\GDDR5
    Maximum RAM amount 512 MB 2 GB
    Display Connectors 2x DVI, 1x S-Video No outputs
      Check Price
    • GeForce 9800 GTX has 337% more power consumption, than GeForce GT 645M.
    • GeForce 9800 GTX is connected by PCIe 2.0 x16, and GeForce GT 645M uses PCIe 3.0 x16 interface.
    • GeForce 9800 GTX has 510 GB more memory, than GeForce GT 645M.
    • GeForce 9800 GTX is used in Desktops, and GeForce GT 645M - in Laptops.
    • GeForce 9800 GTX is build with Tesla architecture, and GeForce GT 645M - with Kepler.
    • GeForce 9800 GTX is manufactured by 65 nm process technology, and GeForce GT 645M - by 28 nm process technology.
    • Memory clock speed of GeForce GT 645M is 700 MHz higher, than GeForce 9800 GTX.

    Game benchmarks

    high / 1080p 0−1 1−2
    ultra / 1080p − 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 12−14
    medium / 1080p 0−1 2−3
    The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than GeForce 9800 GTX.

    Full Specs

      GeForce 9800 GTX GeForce GT 645M
    Architecture Tesla Kepler
    Code name G92 N13P-GS
    Type Desktop Laptop
    Release date 28 March 2008 22 March 2012
    Pipelines 128 384
    Core clock speed 1688 MHz
    Transistor count 754 million 1,270 million
    Manufacturing process technology 65 nm 28 nm
    Texture fill rate 43.2 billion/sec 22.7 billion/sec
    Floating-point performance 432.1 gflops 544.5 gflops
    Length 10.5" (26.7 cm)
    Memory bus width 256 Bit 128bit
    Memory clock speed 1100 MHz 1800 MHz
    Memory bandwidth 70.4 GB/s
    Shared memory -
    DirectX 11.1 (10_0) 12 API
    Shader Model 4.0 5.1
    OpenGL 2.1 4.5
    OpenCL 1.1 1.1
    Vulkan N/A 1.1.126
    CUDA + +
    CUDA cores 128 384
    Bus support PCI-E 2.0 PCI Express 2.0, PCI Express 3.0
    Height 4.376" (11.1 cm)
    SLI options +
    Multi monitor support +
    HDMI Via Adapter +
    HDCP +
    Maximum VGA resolution 2048x1536 Up to 2048x1536
    Audio input for HDMI S/PDIF
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size medium sized
    Optimus +
      Check Price

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