Subscribe to our YouTube channel ×

    GeForce 840M vs Radeon R9 380X

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 840M and Radeon R9 380X. 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 GeForce 840M and Radeon R9 380X. 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.
    GeForce 840M Check Price
    Radeon R9 380X 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 380X
    Power consumption (TDP) 33 Watt 190 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
      Check Price Check Price
    • Radeon R9 380X has 475% more power consumption, than GeForce 840M.
    • GeForce 840M is connected by PCIe 3.0 x8, and Radeon R9 380X uses PCIe 3.0 x16 interface.
    • GeForce 840M and Radeon R9 380X have maximum RAM of 4 GB.
    • GeForce 840M is used in Laptops, and Radeon R9 380X - in Desktops.
    • GeForce 840M is build with Maxwell architecture, and Radeon R9 380X - with GCN 3.0.
    • GeForce 840M and Radeon R9 380X are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 840M is 1030 MHz higher, than Radeon R9 380X.

    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 380X in Assassin's Creed Odyssey is 683% more, than GeForce 840M.

    Full Specs

      GeForce 840M Radeon R9 380X
    Architecture Maxwell GCN 3.0
    Code name N15S-GT Antigua
    Type Laptop Desktop
    Release date 12 March 2014 19 November 2015
    Pipelines 384 2048
    Core clock speed 1029 MHz
    Boost Clock 1124 MHz 970 MHz
    Transistor count 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98 124.2
    Floating-point performance 863.2 gflops 3,973 gflops
    Length 221 mm
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2000 MHz 970 MHz
    Memory bandwidth 16.02 GB/s 182.4 GB/s
    Shared memory -
    DirectX 12 (11_0)
    Shader Model 5.1 6.3
    OpenGL 4.5 4.5
    OpenCL 1.2 2.0
    Vulkan 1.1.126 +
    CUDA +
    Monero / XMR (CryptoNight) 0.58 kh/s
    FreeSync +
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 92 Mh/s
    Laptop size medium sized
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    TrueAudio +
    ZeroCore +
    Mantle +
    Design reference
    Bridgeless CrossFire +
    Number of Eyefinity displays 6
    DisplayPort support +
    CrossFire +
    VCE +
    DDMA audio +
    Decred / DCR (Decred) 0.89 Gh/s
    Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s
    Zcash / ZEC (Equihash) 175 Sol/s
    Compute units 32
    Form factor full height / full length
    GPU Boost 2.0
    GameWorks +
    High bandwidth memory (HBM) -
    LiquidVR +
    FRTC +
      Check Price Check Price

    Similar compares