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    Radeon R7 M275DX vs Radeon RX 640

    When comparing Radeon R7 M275DX 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 Radeon R7 M275DX and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Radeon R7 M275DX Check Price
    Radeon RX 640 Check Price

    Radeon R7 M275DX and Radeon RX 640 are Laptop Graphics Cards

    Note: Radeon R7 M275DX 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 Radeon R7 M275DX or Radeon RX 640 here:

    Radeon R7 M275DX Laptops
    Radeon RX 640 Laptops

    Main Specs

      Radeon R7 M275DX Radeon RX 640
    Power consumption (TDP) 50 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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    • Both cards are used in Laptops.
    • Radeon R7 M275DX is build with GCN architecture, and Radeon RX 640 - with Polaris.
    • Radeon R7 M275DX is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 9−10 5−6
    ultra / 1080p 5−6 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 21−24 16−18
    medium / 1080p 10−12 7−8
    The average gaming FPS of Radeon R7 M275DX in Assassin's Creed Odyssey is 50% more, than Radeon RX 640.

    Full Specs

      Radeon R7 M275DX Radeon RX 640
    Architecture GCN Polaris
    Code name Polaris 12
    Type Laptop Laptop
    Release date 4 June 2014 12 August 2019
    Pipelines 896 640
    Core clock speed 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 38.98
    Memory bus width 64 Bit
    Memory clock speed 6000 MHz
    Memory bandwidth 112.0 GB/s
    Shared memory + -
    DirectX DirectX 12, Shader 5.0 12 (12_0)
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.0
    Vulkan 1.2.131
    FreeSync +
    Laptop size medium sized large
    Eyefinity +
    AppAcceleration +
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