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    GeForce 840A vs Radeon Pro 580X

    If you are going to buy a new graphics card and are choosing between GeForce 840A and Radeon Pro 580X, 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 840A stacks up against Radeon Pro 580X, check out specs charts below.
    GeForce 840A
    Radeon Pro 580X

    Main Specs

      GeForce 840A Radeon Pro 580X
    Power consumption (TDP) 33 Watt 150 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3 GDDR5
    Maximum RAM amount 2 GB 8 GB
    Display Connectors No outputs No outputs
     
    • Radeon Pro 580X has 354% more power consumption, than GeForce 840A.
    • GeForce 840A is connected by PCIe 3.0 x8, and Radeon Pro 580X uses PCIe 3.0 x16 interface.
    • Radeon Pro 580X has 6 GB more memory, than GeForce 840A.
    • Both cards are used in Desktops.
    • GeForce 840A is build with Maxwell architecture, and Radeon Pro 580X - with GCN 4.0.
    • Core clock speed of Radeon Pro 580X is 71 MHz higher, than GeForce 840A.
    • GeForce 840A is manufactured by 28 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
    • Memory clock speed of Radeon Pro 580X is 4778 MHz higher, than GeForce 840A.

    Game benchmarks

    high / 1080p 3−4 35−40
    ultra / 1080p 2−3 24−27
    QHD / 1440p 0−1 18−20
    4K / 2160p − 10−12
    low / 720p 14−16 60−65
    medium / 1080p 5−6 45−50
    The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 616% more, than GeForce 840A.

    Full Specs

      GeForce 840A Radeon Pro 580X
    Architecture Maxwell GCN 4.0
    Code name GM108 Polaris 20
    Type Desktop Workstation
    Release date 17 March 2014 18 March 2019
    Pipelines 384 2304
    Core clock speed 1029 MHz 1100 MHz
    Boost Clock 1124 MHz 1200 MHz
    Transistor count 5,700 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 17.98 172.8
    Floating-point performance 863.2 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2002 MHz 6780 MHz
    Memory bandwidth 16.02 GB/s 217.0 GB/s
    DirectX 12 (11_0) 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.6 4.6
    OpenCL 1.2 2.0
    Vulkan 1.1.126 1.2.131
    CUDA 5.0
     

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