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    GeForce GTX 660M vs Radeon R9 M290X

    When choosing between GeForce GTX 660M and Radeon R9 M290X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 660M and Radeon R9 M290X.
    GeForce GTX 660M Check Price
    Radeon R9 M290X Check Price

    GeForce GTX 660M and Radeon R9 M290X are Laptop Graphics Cards

    Note: GeForce GTX 660M and Radeon R9 M290X are only used in laptop graphics. They have 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 660M or Radeon R9 M290X here:

    GeForce GTX 660M Laptops
    Radeon R9 M290X Laptops

    Main Specs

      GeForce GTX 660M Radeon R9 M290X
    Power consumption (TDP) 50 Watt 100 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Radeon R9 M290X has 100% more power consumption, than GeForce GTX 660M.
    • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon R9 M290X uses PCIe 3.0 x16 interface.
    • Radeon R9 M290X has 2 GB more memory, than GeForce GTX 660M.
    • Both cards are used in Laptops.
    • GeForce GTX 660M is build with Kepler architecture, and Radeon R9 M290X - with GCN.
    • Core clock speed of Radeon R9 M290X is 15 MHz higher, than GeForce GTX 660M.
    • GeForce GTX 660M and Radeon R9 M290X are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 660M is 800 MHz higher, than Radeon R9 M290X.

    Game benchmarks

    high / 1080p 6−7 16−18
    ultra / 1080p 4−5 10−11
    QHD / 1440p 0−1 4−5
    4K / 2160p − 4−5
    low / 720p 16−18 30−35
    medium / 1080p 8−9 20−22
    The average gaming FPS of Radeon R9 M290X in Assassin's Creed Odyssey is 122% more, than GeForce GTX 660M.

    Full Specs

      GeForce GTX 660M Radeon R9 M290X
    Architecture Kepler GCN
    Code name N13E-GE Neptune
    Type Laptop Laptop
    Release date 22 March 2012 7 January 2014
    Pipelines 384 1280
    Core clock speed 835 MHz 850 MHz
    Boost Clock 950 MHz 900 MHz
    Transistor count 1,270 million 2,800 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 30.4 billion/sec 72.00
    Floating-point performance 729.6 gflops 2,304 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 2000 MHz 1200 MHz
    Memory bandwidth 64.0 GB/s 153.6 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126
    CUDA +
    FreeSync +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0 x16
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    Bitcoin / BTC (SHA256) 36 Mh/s 300 Mh/s
    Laptop size large large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 20
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