Subscribe to our YouTube channel ×

    GeForce GTX 660M vs Radeon R9 M485X

    When comparing GeForce GTX 660M and Radeon R9 M485X, 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 660M and Radeon R9 M485X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GTX 660M Check Price
    Radeon R9 M485X Check Price

    GeForce GTX 660M and Radeon R9 M485X are Laptop Graphics Cards

    Note: GeForce GTX 660M and Radeon R9 M485X 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 M485X here:

    GeForce GTX 660M Laptops
    Radeon R9 M485X Laptops

    Main Specs

      GeForce GTX 660M Radeon R9 M485X
    Power consumption (TDP) 50 Watt 250 Watt
    Interface MXM-B (3.0) MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 8 GB MB
    Display Connectors No outputs No outputs
      Check Price Check Price
    • Radeon R9 M485X has 400% more power consumption, than GeForce GTX 660M.
    • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
    • Radeon R9 M485X has 6 GB more memory, than GeForce GTX 660M.
    • Both cards are used in Laptops.
    • GeForce GTX 660M is build with Kepler architecture, and Radeon R9 M485X - with GCN 3.
    • Core clock speed of GeForce GTX 660M is 112 MHz higher, than Radeon R9 M485X.
    • GeForce GTX 660M and Radeon R9 M485X are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon R9 M485X is 3000 MHz higher, than GeForce GTX 660M.

    Game benchmarks

    high / 1080p 6−7 24−27
    ultra / 1080p 4−5 14−16
    QHD / 1440p 0−1 10−11
    4K / 2160p − 6−7
    low / 720p 16−18 45−50
    medium / 1080p 8−9 30−35
    The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 233% more, than GeForce GTX 660M.

    Full Specs

      GeForce GTX 660M Radeon R9 M485X
    Architecture Kepler GCN 3
    Code name N13E-GE Amethyst
    Type Laptop Laptop
    Release date 22 March 2012 14 May 2016
    Pipelines 384 2048
    Core clock speed 835 MHz 723 MHz
    Boost Clock 950 MHz
    Transistor count 1,270 million 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 30.4 billion/sec 92.54
    Floating-point performance 729.6 gflops 2,961 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 2000 MHz 5000 MHz
    Memory bandwidth 64.0 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 API 12 (12_0)
    Shader Model 5.1 6.3
    OpenGL 4.5 4.6
    OpenCL 1.1 2.0
    Vulkan 1.1.126 1.2.131
    CUDA +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    Bitcoin / BTC (SHA256) 36 Mh/s
    Laptop size large large
    Optimus +
      Check Price Check Price

    Similar compares