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    Radeon R7 M340 vs Radeon R9 280

    Find out if it is worth upgrading your current GPU setup by comparing Radeon R7 M340 and Radeon R9 280. 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 Radeon R7 M340 and Radeon R9 280. 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.
    Radeon R7 M340 Check Price
    Radeon R9 280 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 R7 M340 Radeon R9 280
    Power consumption (TDP) 200 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors None 1 x 6-pin + 1 x 8-pin
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 3 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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    • Radeon R7 M340 is connected by PCIe 3.0 x8, and Radeon R9 280 uses PCIe 3.0 x16 interface.
    • Radeon R7 M340 has 1 GB more memory, than Radeon R9 280.
    • Radeon R7 M340 is used in Laptops, and Radeon R9 280 - in Desktops.
    • Radeon R7 M340 is build with GCN architecture, and Radeon R9 280 - with GCN 1.0.
    • Radeon R7 M340 and Radeon R9 280 are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon R9 280 is 250 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 0−1 35−40
    ultra / 1080p − 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 1−2 60−65
    medium / 1080p 0−1 40−45
    The average gaming FPS of Radeon R9 280 in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M340.

    Full Specs

      Radeon R7 M340 Radeon R9 280
    Architecture GCN GCN 1.0
    Code name Meso Pro DDR3 Tahiti
    Type Laptop Desktop
    Release date 16 June 2015 4 March 2014
    Pipelines 320 1792
    Core clock speed 1021 MHz
    Boost Clock 1021 MHz 933 MHz
    Transistor count 950 million 4,313 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.16 104.5
    Floating-point performance 549.1 gflops 3,344 gflops
    Length 275 mm
    Memory bus width 128 Bit 384 Bit
    Memory clock speed 1000 MHz 1250 MHz
    Memory bandwidth 16 GB/s 240 GB/s
    Shared memory -
    Shader Model 5.1 5.1
    OpenGL 4.4 4.6
    OpenCL Not Listed 1.2
    Vulkan + +
    FreeSync + +
    Bus support PCIe 3.0 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 74 Mh/s 408 Mh/s
    Eyefinity + +
    HD3D + +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Design reference
    CrossFire +
    DDMA audio +
    Ethereum / ETH (DaggerHashimoto) 21.5 Mh/s
    Compute units 6
    LiquidVR +
    TressFX +
    UVD +
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