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    GeForce GTX 660 vs GeForce GTX 980M

    When comparing GeForce GTX 660 and GeForce GTX 980M, 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 GTX 660 and GeForce GTX 980M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GTX 660 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 GTX 660 GeForce GTX 980M
    Power consumption (TDP) 140 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Supplementary power connectors One 6-pin None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 8 GB
    Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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    • GeForce GTX 660 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 GTX 660.
    • GeForce GTX 660 is used in Desktops, and GeForce GTX 980M - in Laptops.
    • GeForce GTX 660 is build with Kepler architecture, and GeForce GTX 980M - with Maxwell.
    • Core clock speed of GeForce GTX 980M is 58 MHz higher, than GeForce GTX 660.
    • GeForce GTX 660 and GeForce GTX 980M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 980M is 2494 MHz higher, than GeForce GTX 660.

    Game benchmarks

    high / 1080p 20−22 35−40
    ultra / 1080p 12−14 24−27
    QHD / 1440p 6−7 18−20
    4K / 2160p 5−6 10−11
    low / 720p 40−45 60−65
    medium / 1080p 24−27 45−50
    The average gaming FPS of GeForce GTX 980M in Assassin's Creed Odyssey is 73% more, than GeForce GTX 660.

    Full Specs

      GeForce GTX 660 GeForce GTX 980M
    Architecture Kepler Maxwell
    Code name GK106 GM204
    Type Desktop Laptop
    Release date 6 September 2012 7 October 2014
    Pipelines 960 1536
    Core clock speed 980 MHz 1038 MHz
    Boost Clock 1033 MHz 1127 MHz
    Transistor count 2,540 million 5,200 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 78.4 billion/sec 51.84
    Floating-point performance 1,981 gflops 3,462 gflops
    Length 9.5" (24.1 cm)
    Memory bus width 192-bit GDDR5 256 Bit
    Memory clock speed 6.0 GB/s 2500 MHz
    Memory bandwidth 144.2 GB/s 160 GB/s
    Shared memory -
    G-SYNC support +
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.3 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 960 1536
    Bus support PCI Express 3.0 PCI Express 3.0
    Height 4.376" (11.1 cm)
    SLI options + +
    Multi monitor support 4 displays
    HDMI + +
    HDCP +
    Maximum VGA resolution 2048x1536
    Audio input for HDMI Internal
    3D Blu-Ray +
    3D Gaming +
    3D Vision +
    Bitcoin / BTC (SHA256) 66 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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