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    GeForce GT 640M LE vs Radeon HD 6870

    If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and Radeon HD 6870, 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 GT 640M LE stacks up against Radeon HD 6870, check out specs charts below.
    GeForce GT 640M LE Check Price
    Radeon HD 6870 Check Price

    GeForce GT 640M LE is a Laptop Graphics Card

    Note: GeForce GT 640M LE 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 GeForce GT 640M LE here:

    GeForce GT 640M LE Laptops

    Main Specs

      GeForce GT 640M LE Radeon HD 6870
    Power consumption (TDP) 20 Watt 151 Watt
    Interface PCIe 2.0 x16 PCIe 2.0 x16
    Supplementary power connectors 2x 6-pin
    Memory type DDR3\DDR5 GDDR5
    Maximum RAM amount 2 GB 1 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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    • Radeon HD 6870 has 655% more power consumption, than GeForce GT 640M LE.
    • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
    • GeForce GT 640M LE has 1 GB more memory, than Radeon HD 6870.
    • GeForce GT 640M LE is used in Laptops, and Radeon HD 6870 - in Desktops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 6870 - with Terascale 2.
    • GeForce GT 640M LE is manufactured by 28 nm process technology, and Radeon HD 6870 - by 40 nm process technology.
    • Memory clock speed of GeForce GT 640M LE is 750 MHz higher, than Radeon HD 6870.

    Game benchmarks

    high / 1080p 0−1 10−12
    ultra / 1080p − 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 1−2 24−27
    medium / 1080p 0−1 12−14
    The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 2400% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE Radeon HD 6870
    Architecture Fermi / Kepler Terascale 2
    Code name N13P-LP RV940 Barts
    Type Laptop Desktop
    Release date 22 March 2012 22 October 2010
    Pipelines 384 1120
    Boost Clock 900 MHz
    Transistor count 585 million 1,700 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 50.40
    Floating-point performance 384.0 gflops 2,016.0 gflops
    Length 220 mm
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 1050 MHz
    Memory bandwidth 134.4 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 5.0
    OpenGL 4.5 4.4
    OpenCL 1.1 1.2
    Vulkan N/A
    CUDA +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 2.0 x16
    HDMI + +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s 213 Mh/s
    Laptop size medium sized
    Optimus +
    Eyefinity +
    Design reference
    CrossFire +
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