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    GeForce GT 640 vs Radeon RX 640

    When comparing GeForce GT 640 and Radeon RX 640, 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 640 and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640 Check Price
    Radeon RX 640 Check Price

    Radeon RX 640 is a Laptop Graphics Card

    Note: Radeon RX 640 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 Radeon RX 640 here:

    Radeon RX 640 Laptops

    Main Specs

      GeForce GT 640 Radeon RX 640
    Power consumption (TDP) 65 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors None None
    Memory type DDR3 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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    • GeForce GT 640 has 30% more power consumption, than Radeon RX 640.
    • GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
    • Radeon RX 640 has 2 GB more memory, than GeForce GT 640.
    • GeForce GT 640 is used in Desktops, and Radeon RX 640 - in Laptops.
    • GeForce GT 640 is build with Kepler architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 316 MHz higher, than GeForce GT 640.
    • GeForce GT 640 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 4218 MHz higher, than GeForce GT 640.

    Game benchmarks

    high / 1080p 2−3 5−6
    ultra / 1080p 1−2 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 14−16 16−18
    medium / 1080p 5−6 7−8
    The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 33% more, than GeForce GT 640.

    Full Specs

      GeForce GT 640 Radeon RX 640
    Architecture Kepler Polaris
    Code name GK107 Polaris 12
    Type Desktop Laptop
    Release date 5 June 2012 12 August 2019
    Pipelines 384 640
    Core clock speed 902 MHz 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 1,270 million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 28.86 38.98
    Floating-point performance 692.7 gflops
    Length 145 mm
    Memory bus width 128 Bit 64 Bit
    Memory clock speed 1782 MHz 6000 MHz
    Memory bandwidth 28.51 GB/s 112.0 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.6 4.6
    OpenCL 1.2 2.0
    Vulkan 1.1.126 1.2.131
    CUDA 3.0
    FreeSync +
    Bitcoin / BTC (SHA256) 24 Mh/s
    Laptop size large
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