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    GeForce GT 645M vs P104 100

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and P104 100. 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 GT 645M and P104 100. 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 GT 645M Check Price
    P104 100

    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 GT 645M P104 100
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors 1x 8-pin
    Memory type DDR3\GDDR5 GDDR5X
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • P104 100 has 2 GB more memory, than GeForce GT 645M.
    • GeForce GT 645M is used in Laptops, and P104 100 - in Desktops.
    • GeForce GT 645M is build with Kepler architecture, and P104 100 - with Pascal.
    • GeForce GT 645M is manufactured by 28 nm process technology, and P104 100 - by 16 nm process technology.
    • Memory clock speed of P104 100 is 8208 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 35−40
    ultra / 1080p 0−1 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 12−14 60−65
    medium / 1080p 2−3 40−45
    The average gaming FPS of P104 100 in Assassin's Creed Odyssey is 840% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M P104 100
    Architecture Kepler Pascal
    Code name N13P-GS GP104
    Type Laptop Desktop
    Release date 22 March 2012 12 December 2017
    Pipelines 384 1920
    Core clock speed 1607 MHz
    Boost Clock 1733 MHz
    Transistor count 1,270 million 7,200 million
    Manufacturing process technology 28 nm 16 nm
    Texture fill rate 22.7 billion/sec 208.0
    Floating-point performance 544.5 gflops 8,873 gflops
    Length 267 mm
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 MHz 10008 MHz
    Memory bandwidth 320.3 GB/s
    Shared memory -
    DirectX 12 API 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan 1.1.126 1.2.131
    CUDA + 6.1
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size medium sized
    Optimus +
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