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    GeForce GT 640 vs GeForce GTX 980M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and GeForce GTX 980M. 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 640 and GeForce GTX 980M. 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 640 Check Price
    GeForce GTX 980M Check Price

    GeForce GTX 980M is a Laptop Graphics Card

    Note: GeForce GTX 980M 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 GTX 980M here:

    GeForce GTX 980M Laptops

    Main Specs

      GeForce GT 640 GeForce GTX 980M
    Power consumption (TDP) 65 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Supplementary power connectors None None
    Memory type DDR3 GDDR5
    Maximum RAM amount 2 GB 8 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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    • GeForce GT 640 is connected by PCIe 3.0 x16, and GeForce GTX 980M uses MXM-B (3.0) interface.
    • GeForce GTX 980M has 6 GB more memory, than GeForce GT 640.
    • GeForce GT 640 is used in Desktops, and GeForce GTX 980M - in Laptops.
    • GeForce GT 640 is build with Kepler architecture, and GeForce GTX 980M - with Maxwell.
    • Core clock speed of GeForce GTX 980M is 136 MHz higher, than GeForce GT 640.
    • GeForce GT 640 and GeForce GTX 980M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 980M is 718 MHz higher, than GeForce GT 640.

    Game benchmarks

    high / 1080p 2−3 35−40
    ultra / 1080p 1−2 24−27
    QHD / 1440p 0−1 18−20
    4K / 2160p − 10−11
    low / 720p 14−16 60−65
    medium / 1080p 5−6 45−50
    The average gaming FPS of GeForce GTX 980M in Assassin's Creed Odyssey is 616% more, than GeForce GT 640.

    Full Specs

      GeForce GT 640 GeForce GTX 980M
    Architecture Kepler Maxwell
    Code name GK107 GM204
    Type Desktop Laptop
    Release date 5 June 2012 7 October 2014
    Pipelines 384 1536
    Core clock speed 902 MHz 1038 MHz
    Boost Clock 1127 MHz
    Transistor count 1,270 million 5,200 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 28.86 51.84
    Floating-point performance 692.7 gflops 3,462 gflops
    Length 145 mm
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 1782 MHz 2500 MHz
    Memory bandwidth 28.51 GB/s 160 GB/s
    Shared memory -
    G-SYNC support +
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.6 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 1.1.126
    CUDA 3.0 +
    CUDA cores 1536
    Bus support PCI Express 3.0
    SLI options +
    HDMI +
    Bitcoin / BTC (SHA256) 24 Mh/s 383 Mh/s
    Laptop size large
    DisplayPort Multimode (DP++) support +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus +
    GameStream +
    GeForce ShadowPlay +
    GPU Boost 2.0
    GameWorks +
    BatteryBoost +
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