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    Radeon HD 6770 vs Radeon R7 M340

    If you are going to buy a new graphics card and are choosing between Radeon HD 6770 and Radeon R7 M340, 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 Radeon HD 6770 stacks up against Radeon R7 M340, check out specs charts below.
    Radeon HD 6770 Check Price
    Radeon R7 M340 Check Price

    Radeon R7 M340 is a Laptop Graphics Card

    Note: Radeon R7 M340 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 Radeon R7 M340 here:

    Radeon R7 M340 Laptops

    Main Specs

      Radeon HD 6770 Radeon R7 M340
    Power consumption (TDP) 108 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x8
    Supplementary power connectors 1x 6-pin None
    Memory type GDDR5 DDR3
    Maximum RAM amount 1 GB 4 GB
    Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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    • Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • Radeon R7 M340 has 3 GB more memory, than Radeon HD 6770.
    • Radeon HD 6770 is used in Desktops, and Radeon R7 M340 - in Laptops.
    • Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon R7 M340 - with GCN.
    • Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon R7 M340 - by 28 nm process technology.
    • Memory clock speed of Radeon HD 6770 is 50 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 3−4 0−1
    ultra / 1080p 1−2 −
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 1−2
    medium / 1080p 5−6 0−1
    The average gaming FPS of Radeon HD 6770 in Assassin's Creed Odyssey is 1400% more, than Radeon R7 M340.

    Full Specs

      Radeon HD 6770 Radeon R7 M340
    Architecture TeraScale 2 GCN
    Code name Juniper Meso Pro DDR3
    Type Desktop Laptop
    Release date 21 January 2011 16 June 2015
    Pipelines 800 320
    Core clock speed 1021 MHz
    Boost Clock 900 MHz 1021 MHz
    Transistor count 1,040 million 950 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 34.00 17.16
    Floating-point performance 1,360.0 gflops 549.1 gflops
    Length 198 mm
    Memory bus width 128 Bit 128 Bit
    Memory clock speed 1050 MHz 1000 MHz
    Memory bandwidth 76.8 GB/s 16 GB/s
    Shared memory -
    Shader Model 5.0 5.1
    OpenGL 4.4 4.4
    OpenCL 1.2 Not Listed
    Vulkan +
    FreeSync +
    Bus support PCIe 2.0 x16 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 118 Mh/s 74 Mh/s
    Eyefinity + +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Design reference
    CrossFire +
    Compute units 6
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