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    FirePro V7900 vs GeForce GT 645M

    When comparing FirePro V7900 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 FirePro V7900 and GeForce GT 645M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    FirePro V7900 Check Price
    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

      FirePro V7900 GeForce GT 645M
    Power consumption (TDP) 151 Watt 32 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Supplementary power connectors 1x 6-pin
    Memory type GDDR5 DDR3\GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors 4x DisplayPort No outputs
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    • FirePro V7900 has 371% more power consumption, than GeForce GT 645M.
    • FirePro V7900 is connected by PCIe 2.0 x16, and GeForce GT 645M uses PCIe 3.0 x16 interface.
    • FirePro V7900 and GeForce GT 645M have maximum RAM of 2 GB.
    • FirePro V7900 is used in Desktops, and GeForce GT 645M - in Laptops.
    • FirePro V7900 is build with TeraScale 3 architecture, and GeForce GT 645M - with Kepler.
    • FirePro V7900 is manufactured by 40 nm process technology, and GeForce GT 645M - by 28 nm process technology.
    • Memory clock speed of FirePro V7900 is 3200 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 10−12 1−2
    ultra / 1080p 6−7 0−1
    QHD / 1440p 1−2 0−1
    low / 720p 24−27 12−14
    medium / 1080p 14−16 2−3
    The average gaming FPS of FirePro V7900 in Assassin's Creed Odyssey is 240% more, than GeForce GT 645M.

    Full Specs

      FirePro V7900 GeForce GT 645M
    Architecture TeraScale 3 Kepler
    Code name Cayman N13P-GS
    Type Workstation Laptop
    Release date 24 May 2011 22 March 2012
    Pipelines 1280 384
    Core clock speed 725 MHz
    Transistor count 2,640 million 1,270 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 58.00 22.7 billion/sec
    Floating-point performance 1,856.0 gflops 544.5 gflops
    Length 279 mm
    Memory bus width 256 Bit 128bit
    Memory clock speed 5000 MHz 1800 MHz
    Memory bandwidth 160 GB/s
    Shared memory -
    DirectX 11.2 (11_0) 12 API
    Shader Model 5.0 5.1
    OpenGL 4.4 4.5
    OpenCL 1.2 1.1
    Vulkan N/A 1.1.126
    CUDA +
    CUDA cores 384
    Bus support PCIe 2.1 x16 PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 171 Mh/s 19 Mh/s
    Laptop size medium sized
    Optimus +
    Form factor full height / full length
    StereoOutput3D +
    DisplayPort count 4
    Dual-link DVI support +
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