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    GeForce GT 645M vs Radeon R9 M385

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and Radeon R9 M385. 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 645M and Radeon R9 M385. 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 645M Check Price
    Radeon R9 M385 Check Price

    GeForce GT 645M and Radeon R9 M385 are Laptop Graphics Cards

    Note: GeForce GT 645M and Radeon R9 M385 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 GT 645M or Radeon R9 M385 here:

    GeForce GT 645M Laptops
    Radeon R9 M385 Laptops

    Main Specs

      GeForce GT 645M Radeon R9 M385
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon R9 M385 has 2 GB more memory, than GeForce GT 645M.
    • Both cards are used in Laptops.
    • GeForce GT 645M is build with Kepler architecture, and Radeon R9 M385 - with GCN.
    • GeForce GT 645M and Radeon R9 M385 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 645M is 300 MHz higher, than Radeon R9 M385.

    Game benchmarks

    high / 1080p 1−2 10−12
    ultra / 1080p 0−1 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 12−14 24−27
    medium / 1080p 2−3 12−14
    The average gaming FPS of Radeon R9 M385 in Assassin's Creed Odyssey is 220% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M Radeon R9 M385
    Architecture Kepler GCN
    Code name N13P-GS Strato
    Type Laptop Laptop
    Release date 22 March 2012 16 June 2015
    Pipelines 384 896
    Boost Clock 1100 MHz
    Transistor count 1,270 million 2,080 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 22.7 billion/sec 56.00
    Floating-point performance 544.5 gflops 1,792 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 MHz 1500 MHz
    Memory bandwidth 76.8 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 6.3
    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
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size medium sized medium sized
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
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