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    Radeon R7 M340 vs Radeon R9 290X

    If you are going to buy a new graphics card and are choosing between Radeon R7 M340 and Radeon R9 290X, 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 R7 M340 stacks up against Radeon R9 290X, check out specs charts below.
    Radeon R7 M340 Check Price
    Radeon R9 290X 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 290X
    Power consumption (TDP) 250 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 4 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon R7 M340 is connected by PCIe 3.0 x8, and Radeon R9 290X uses PCIe 3.0 x16 interface.
    • Radeon R7 M340 and Radeon R9 290X have maximum RAM of 4 GB.
    • Radeon R7 M340 is used in Laptops, and Radeon R9 290X - in Desktops.
    • Radeon R7 M340 and Radeon R9 290X are build with GCN architecture.
    • Radeon R7 M340 and Radeon R9 290X are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon R9 290X is 250 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 0−1 35−40
    ultra / 1080p − 24−27
    QHD / 1440p 0−1 18−20
    4K / 2160p − 10−11
    low / 720p 1−2 60−65
    medium / 1080p 0−1 45−50
    The average gaming FPS of Radeon R9 290X in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M340.

    Full Specs

      Radeon R7 M340 Radeon R9 290X
    Architecture GCN GCN
    Code name Meso Pro DDR3 Hawaii XT
    Type Laptop Desktop
    Release date 16 June 2015 24 October 2013
    Pipelines 320 2816
    Core clock speed 1021 MHz
    Boost Clock 1021 MHz 947 MHz
    Transistor count 950 million 6,200 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.16 176.0
    Floating-point performance 549.1 gflops 5,632 gflops
    Length 275 mm
    Memory bus width 128 Bit 512 Bit
    Memory clock speed 1000 MHz 1250 MHz
    Memory bandwidth 16 GB/s 320 GB/s
    Shared memory - -
    Shader Model 5.1 6.3
    OpenGL 4.4 4.6
    OpenCL Not Listed 2.0
    Vulkan + +
    Monero / XMR (CryptoNight) 0.76 kh/s
    FreeSync + +
    Bus support PCIe 3.0 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 74 Mh/s 623 Mh/s
    Eyefinity + +
    HD3D + +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Design reference
    DisplayPort support +
    CrossFire +
    DDMA audio +
    Decred / DCR (Decred) 1.07 Gh/s
    Ethereum / ETH (DaggerHashimoto) 25.75 Mh/s
    Zcash / ZEC (Equihash) 350 Sol/s
    Compute units 6
    AppAcceleration +
    LiquidVR +
    TressFX +
    UVD +
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