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    GeForce GT 755M vs Radeon RX 640

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 755M and Radeon RX 640. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 755M and Radeon RX 640. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GT 755M Check Price
    Radeon RX 640 Check Price

    GeForce GT 755M and Radeon RX 640 are Laptop Graphics Cards

    Note: GeForce GT 755M 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 GT 755M or Radeon RX 640 here:

    GeForce GT 755M Laptops
    Radeon RX 640 Laptops

    Main Specs

      GeForce GT 755M Radeon RX 640
    Power consumption (TDP) 50 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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    • Both graphics cards have the same power consumption of 50 Watt.
    • GeForce GT 755M is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
    • GeForce GT 755M and Radeon RX 640 have maximum RAM of 4 GB.
    • Both cards are used in Laptops.
    • GeForce GT 755M is build with Kepler architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 238 MHz higher, than GeForce GT 755M.
    • GeForce GT 755M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 600 MHz higher, than GeForce GT 755M.

    Game benchmarks

    high / 1080p 7−8 5−6
    ultra / 1080p 4−5 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 18−20 16−18
    medium / 1080p 9−10 7−8
    The average gaming FPS of GeForce GT 755M in Assassin's Creed Odyssey is 25% more, than Radeon RX 640.

    Full Specs

      GeForce GT 755M Radeon RX 640
    Architecture Kepler Polaris
    Code name N14P- Polaris 12
    Type Laptop Laptop
    Release date 25 June 2013 12 August 2019
    Pipelines 384 640
    Core clock speed 980 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 31.36 38.98
    Floating-point performance 752.6 gflops
    Memory bus width 128 Bit 64 Bit
    Memory clock speed 5400 MHz 6000 MHz
    Memory bandwidth 86.4 GB/s 112.0 GB/s
    Shared memory - -
    DirectX 12 API 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 2.0
    Vulkan 1.1.126 1.2.131
    CUDA +
    FreeSync +
    Bus support PCI Express 3.0, PCI Express 2.0
    HDMI +
    Bitcoin / BTC (SHA256) 27 Mh/s
    Laptop size medium sized large
    Standard memory configuration GDDR5
    eDP 1.2 signal support Up to 3840x2160
    LVDS signal support Up to 1920x1200
    DisplayPort Multimode (DP++) support Up to 3840x2160
    HDCP content protection +
    7.1 channel HD audio on HDMI +
    TrueHD and DTS-HD audio bitstreaming +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus +
    Blu-Ray 3D Support +
    3D Vision / 3DTV Play +
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