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    GeForce GT 640M vs Radeon R9 M290X

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Radeon R9 M290X. 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 640M and Radeon R9 M290X. 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 640M Check Price
    Radeon R9 M290X Check Price

    GeForce GT 640M and Radeon R9 M290X are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon R9 M290X 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 640M or Radeon R9 M290X here:

    GeForce GT 640M Laptops
    Radeon R9 M290X Laptops

    Main Specs

      GeForce GT 640M Radeon R9 M290X
    Power consumption (TDP) 32 Watt 100 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Radeon R9 M290X has 212% more power consumption, than GeForce GT 640M.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon R9 M290X has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon R9 M290X - with GCN.
    • GeForce GT 640M and Radeon R9 M290X are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M is 600 MHz higher, than Radeon R9 M290X.

    Game benchmarks

    high / 1080p 0−1 16−18
    ultra / 1080p 0−1 10−11
    QHD / 1440p 0−1 4−5
    4K / 2160p − 4−5
    low / 720p 10−12 30−35
    medium / 1080p 2−3 20−22
    The average gaming FPS of Radeon R9 M290X in Assassin's Creed Odyssey is 333% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon R9 M290X
    Architecture Kepler GCN
    Code name N13P-GS Neptune
    Type Laptop Laptop
    Release date 22 March 2012 7 January 2014
    Pipelines 384 1280
    Core clock speed 850 MHz
    Boost Clock 645 MHz 900 MHz
    Transistor count 1,270 million 2,800 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 72.00
    Floating-point performance 480.0 gflops 2,304 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 1200 MHz
    Memory bandwidth 153.6 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126
    CUDA +
    FreeSync +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0 x16
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 300 Mh/s
    Laptop size medium sized large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 20
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