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    GeForce GTX 770M SLI vs Radeon RX 640

    If you are going to buy a new graphics card and are choosing between GeForce GTX 770M SLI and Radeon RX 640, 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 GTX 770M SLI stacks up against Radeon RX 640, check out specs charts below.
    GeForce GTX 770M SLI Check Price
    Radeon RX 640 Check Price

    GeForce GTX 770M SLI and Radeon RX 640 are Laptop Graphics Cards

    Note: GeForce GTX 770M SLI and Radeon RX 640 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 GTX 770M SLI or Radeon RX 640 here:

    GeForce GTX 770M SLI Laptops
    Radeon RX 640 Laptops

    Main Specs

      GeForce GTX 770M SLI Radeon RX 640
    Power consumption (TDP) 150 Watt 50 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2x 3 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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    • GeForce GTX 770M SLI has 200% more power consumption, than Radeon RX 640.
    • Radeon RX 640 has 2 GB more memory, than GeForce GTX 770M SLI.
    • Both cards are used in Laptops.
    • GeForce GTX 770M SLI is build with Kepler architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 407 MHz higher, than GeForce GTX 770M SLI.
    • GeForce GTX 770M SLI is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 2000 MHz higher, than GeForce GTX 770M SLI.

    Game benchmarks

    high / 1080p 24−27 5−6
    ultra / 1080p 14−16 3−4
    QHD / 1440p 10−11 2−3
    4K / 2160p 6−7 −
    low / 720p 45−50 16−18
    medium / 1080p 30−35 7−8
    The average gaming FPS of GeForce GTX 770M SLI in Assassin's Creed Odyssey is 271% more, than Radeon RX 640.

    Full Specs

      GeForce GTX 770M SLI Radeon RX 640
    Architecture Kepler Polaris
    Code name Polaris 12
    Type Laptop Laptop
    Release date 30 May 2013 12 August 2019
    Pipelines 1920 640
    Core clock speed 811 MHz 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 2x 2540 Million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 38.98
    Memory bus width 2x 192 Bit 64 Bit
    Memory clock speed 4000 MHz 6000 MHz
    Memory bandwidth 112.0 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0 12 (12_0)
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.0
    Vulkan 1.2.131
    CUDA +
    FreeSync +
    SLI options +
    Laptop size large large
    Optimus +
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