Subscribe to our YouTube channel ×

    GeForce 840M vs Radeon R9 280

    If you are going to buy a new graphics card and are choosing between GeForce 840M and Radeon R9 280, 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 840M stacks up against Radeon R9 280, check out specs charts below.
    GeForce 840M Check Price
    Radeon R9 280 Check Price

    GeForce 840M is a Laptop Graphics Card

    Note: GeForce 840M 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 840M here:

    GeForce 840M Laptops

    Main Specs

      GeForce 840M Radeon R9 280
    Power consumption (TDP) 33 Watt 200 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors 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
      Check Price Check Price
    • Radeon R9 280 has 506% more power consumption, than GeForce 840M.
    • GeForce 840M is connected by PCIe 3.0 x8, and Radeon R9 280 uses PCIe 3.0 x16 interface.
    • GeForce 840M has 1 GB more memory, than Radeon R9 280.
    • GeForce 840M is used in Laptops, and Radeon R9 280 - in Desktops.
    • GeForce 840M is build with Maxwell architecture, and Radeon R9 280 - with GCN 1.0.
    • GeForce 840M and Radeon R9 280 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 840M is 750 MHz higher, than Radeon R9 280.

    Game benchmarks

    high / 1080p 1−2 35−40
    ultra / 1080p 0−1 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 12−14 60−65
    medium / 1080p 3−4 40−45
    The average gaming FPS of Radeon R9 280 in Assassin's Creed Odyssey is 683% more, than GeForce 840M.

    Full Specs

      GeForce 840M Radeon R9 280
    Architecture Maxwell GCN 1.0
    Code name N15S-GT Tahiti
    Type Laptop Desktop
    Release date 12 March 2014 4 March 2014
    Pipelines 384 1792
    Core clock speed 1029 MHz
    Boost Clock 1124 MHz 933 MHz
    Transistor count 4,313 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98 104.5
    Floating-point performance 863.2 gflops 3,344 gflops
    Length 275 mm
    Memory bus width 64 Bit 384 Bit
    Memory clock speed 2000 MHz 1250 MHz
    Memory bandwidth 16.02 GB/s 240 GB/s
    Shared memory -
    DirectX 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.2 1.2
    Vulkan 1.1.126 +
    CUDA +
    FreeSync +
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 92 Mh/s 408 Mh/s
    Laptop size medium sized
    Optimus +
    Eyefinity +
    HD3D +
    TrueAudio +
    Design reference
    CrossFire +
    DDMA audio +
    Ethereum / ETH (DaggerHashimoto) 21.5 Mh/s
    GPU Boost 2.0
    GameWorks +
    LiquidVR +
    TressFX +
    UVD +
      Check Price Check Price

    Similar compares