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    GeForce GTX 680 vs Radeon RX 640

    When comparing GeForce GTX 680 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 GTX 680 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 GTX 680 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 GTX 680 Radeon RX 640
    Power consumption (TDP) 195 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors Two 6-pin None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2048 MB 4 GB
    Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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    • GeForce GTX 680 has 290% more power consumption, than Radeon RX 640.
    • GeForce GTX 680 is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
    • GeForce GTX 680 has 2044 GB more memory, than Radeon RX 640.
    • GeForce GTX 680 is used in Desktops, and Radeon RX 640 - in Laptops.
    • GeForce GTX 680 is build with Kepler architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 212 MHz higher, than GeForce GTX 680.
    • GeForce GTX 680 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of GeForce GTX 680 and Radeon RX 640 is 6000 MHz.

    Game benchmarks

    high / 1080p 35−40 5−6
    ultra / 1080p 21−24 3−4
    QHD / 1440p 16−18 2−3
    4K / 2160p 10−11 −
    low / 720p 60−65 16−18
    medium / 1080p 40−45 7−8
    The average gaming FPS of GeForce GTX 680 in Assassin's Creed Odyssey is 414% more, than Radeon RX 640.

    Full Specs

      GeForce GTX 680 Radeon RX 640
    Architecture Kepler Polaris
    Code name GK104 Polaris 12
    Type Desktop Laptop
    Release date 22 March 2012 12 August 2019
    Pipelines 1536 640
    Core clock speed 1006 MHz 1218 MHz
    Boost Clock 1058 MHz 1218 MHz
    Transistor count 3,540 million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 128.8 billion/sec 38.98
    Floating-point performance 3,090.4 gflops
    Length 10.0" (25.4 cm)
    Memory bus width 256-bit GDDR5 64 Bit
    Memory clock speed 6000 MHz 6000 MHz
    Memory bandwidth 192.2 GB/s 112.0 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.2 4.6
    OpenCL 1.2 2.0
    Vulkan 1.1.126 1.2.131
    CUDA +
    FreeSync +
    CUDA cores 1536
    Bus support PCI Express 3.0
    Height 4.376" (11.1 cm)
    SLI options +
    Multi monitor support 4 displays
    HDMI +
    HDCP +
    Maximum VGA resolution 2048x1536
    Audio input for HDMI Internal
    Bitcoin / BTC (SHA256) 121 Mh/s
    Laptop size large
    Ethereum / ETH (DaggerHashimoto) 15 Mh/s
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