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    GeForce GT 645M vs Radeon R7 M380

    When comparing GeForce GT 645M and Radeon R7 M380, 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 GT 645M and Radeon R7 M380 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 645M Check Price
    Radeon R7 M380 Check Price

    GeForce GT 645M and Radeon R7 M380 are Laptop Graphics Cards

    Note: GeForce GT 645M and Radeon R7 M380 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 R7 M380 here:

    GeForce GT 645M Laptops
    Radeon R7 M380 Laptops

    Main Specs

      GeForce GT 645M Radeon R7 M380
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 DDR3
    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 R7 M380 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 R7 M380 - with GCN.
    • GeForce GT 645M and Radeon R7 M380 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 645M is 800 MHz higher, than Radeon R7 M380.

    Game benchmarks

    high / 1080p 1−2 6−7
    ultra / 1080p 0−1 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 16−18
    medium / 1080p 2−3 8−9
    The average gaming FPS of Radeon R7 M380 in Assassin's Creed Odyssey is 100% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M Radeon R7 M380
    Architecture Kepler GCN
    Code name N13P-GS Tropo
    Type Laptop Laptop
    Release date 22 March 2012 7 May 2015
    Pipelines 384 640
    Core clock speed 915 MHz
    Boost Clock 915 MHz
    Transistor count 1,270 million 1,500 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 22.7 billion/sec 36.60
    Floating-point performance 544.5 gflops 1,171 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 MHz 1000 MHz
    Memory bandwidth 32 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
    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 +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 10
    AppAcceleration +
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