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    GeForce GT 640M LE vs Iris Plus Graphics 645

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE and Iris Plus Graphics 645. 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 640M LE and Iris Plus Graphics 645. 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 640M LE Check Price
    Iris Plus Graphics 645 Check Price

    GeForce GT 640M LE and Iris Plus Graphics 645 are Laptop Graphics Cards

    Note: GeForce GT 640M LE and Iris Plus Graphics 645 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 640M LE or Iris Plus Graphics 645 here:

    GeForce GT 640M LE Laptops
    Iris Plus Graphics 645 Laptops

    Main Specs

      GeForce GT 640M LE Iris Plus Graphics 645
    Power consumption (TDP) 20 Watt 15 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x1
    Memory type DDR3\DDR5 DDR3/DDR4
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 640M LE has 33% more power consumption, than Iris Plus Graphics 645.
    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • GeForce GT 640M LE is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 0−1 4−5
    ultra / 1080p − 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 12−14
    medium / 1080p 0−1 5−6
    The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 1200% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE Iris Plus Graphics 645
    Architecture Fermi / Kepler Gen. 9.5 Coffee Lake
    Code name N13P-LP Kaby Lake GT3e
    Type Laptop Laptop
    Release date 22 March 2012 10 July 2019
    Pipelines 384 48
    Core clock speed 300 MHz
    Boost Clock 1150 MHz
    Transistor count 585 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 50.40
    Floating-point performance 384.0 gflops
    Memory bus width 128bit
    Memory clock speed 1800 - 4000 MHz
    Shared memory - +
    DirectX 12 API 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 2.1
    Vulkan N/A 1.1.103
    CUDA +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s
    Laptop size medium sized
    Optimus +
    Quick Sync +
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