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    GeForce GT 740A vs Iris Plus Graphics 645

    If you are going to buy a new graphics card and are choosing between GeForce GT 740A and Iris Plus Graphics 645, 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 GT 740A stacks up against Iris Plus Graphics 645, check out specs charts below.
    GeForce GT 740A
    Iris Plus Graphics 645 Check Price

    Iris Plus Graphics 645 is a Laptop Graphics Card

    Note: Iris Plus Graphics 645 is only used in laptop graphics. It has 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 Iris Plus Graphics 645 here:

    Iris Plus Graphics 645 Laptops

    Main Specs

      GeForce GT 740A Iris Plus Graphics 645
    Power consumption (TDP) 33 Watt 15 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x1
    Memory type DDR3 DDR3/DDR4
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 740A has 120% more power consumption, than Iris Plus Graphics 645.
    • GeForce GT 740A is connected by PCIe 3.0 x8, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • GeForce GT 740A is used in Desktops, and Iris Plus Graphics 645 - in Laptops.
    • GeForce GT 740A is build with Kepler 2.0 architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • Core clock speed of GeForce GT 740A is 680 MHz higher, than Iris Plus Graphics 645.
    • GeForce GT 740A 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 740A.

    Full Specs

      GeForce GT 740A Iris Plus Graphics 645
    Architecture Kepler 2.0 Gen. 9.5 Coffee Lake
    Code name GK208 Kaby Lake GT3e
    Type Desktop Laptop
    Release date 26 August 2013 10 July 2019
    Pipelines 384 48
    Core clock speed 980 MHz 300 MHz
    Boost Clock 1150 MHz
    Transistor count 915 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 31.36 50.40
    Floating-point performance 752.6 gflops
    Memory bus width 64 Bit
    Memory clock speed 1800 MHz
    Memory bandwidth 14.4 GB/s
    Shared memory +
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.6 4.6
    OpenCL 1.2 2.1
    Vulkan 1.1.126 1.1.103
    CUDA 3.5
    Quick Sync +
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