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    GeForce GTX 660 vs Radeon R9 380X

    If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon R9 380X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660 stacks up against Radeon R9 380X, check out specs charts below.
    GeForce GTX 660 Check Price
    Radeon R9 380X Check Price

    Main Specs

      GeForce GTX 660 Radeon R9 380X
    Power consumption (TDP) 140 Watt 190 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors One 6-pin
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon R9 380X has 35% more power consumption, than GeForce GTX 660.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon R9 380X has 2 GB more memory, than GeForce GTX 660.
    • Both cards are used in Desktops.
    • GeForce GTX 660 is build with Kepler architecture, and Radeon R9 380X - with GCN 3.0.
    • GeForce GTX 660 and Radeon R9 380X are manufactured by 28 nm process technology.
    • Radeon R9 380X is 212 mm longer, than GeForce GTX 660.
    • Memory clock speed of Radeon R9 380X is 964 MHz higher, than GeForce GTX 660.

    Game benchmarks

    high / 1080p 20−22 35−40
    ultra / 1080p 12−14 21−24
    QHD / 1440p 6−7 16−18
    4K / 2160p 5−6 10−11
    low / 720p 40−45 60−65
    medium / 1080p 24−27 40−45
    The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

    Full Specs

      GeForce GTX 660 Radeon R9 380X
    Architecture Kepler GCN 3.0
    Code name GK106 Antigua
    Type Desktop Desktop
    Release date 6 September 2012 19 November 2015
    Pipelines 960 2048
    Core clock speed 980 MHz
    Boost Clock 1033 MHz 970 MHz
    Transistor count 2,540 million 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 78.4 billion/sec 124.2
    Floating-point performance 1,981 gflops 3,973 gflops
    Length 9.5" (24.1 cm) 221 mm
    Memory bus width 192-bit GDDR5 256 Bit
    Memory clock speed 6.0 GB/s 970 MHz
    Memory bandwidth 144.2 GB/s 182.4 GB/s
    DirectX 12 (11_0)
    Shader Model 5.1 6.3
    OpenGL 4.3 4.5
    OpenCL 1.2 2.0
    Vulkan 1.1.126 +
    CUDA +
    Monero / XMR (CryptoNight) 0.58 kh/s
    FreeSync +
    CUDA cores 960
    Bus support PCI Express 3.0 PCIe 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
    Eyefinity +
    HD3D +
    PowerTune +
    TrueAudio +
    ZeroCore +
    Mantle +
    Design reference
    Bridgeless CrossFire +
    Number of Eyefinity displays 6
    DisplayPort support +
    CrossFire +
    VCE +
    DDMA audio +
    Decred / DCR (Decred) 0.89 Gh/s
    Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s
    Zcash / ZEC (Equihash) 175 Sol/s
    Compute units 32
    Form factor full height / full length
    High bandwidth memory (HBM) -
    LiquidVR +
    FRTC +
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