How many 'CUDA cores' does each multiprocessor of a GPU have?

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情深已故
情深已故 2021-02-09 07:28

I know that devices before the Fermi architecture had 8 SPs in a single multiprocessor. Is the count same in Fermi architecture?

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  •  既然无缘
    2021-02-09 07:42

    Update of @AshwinNanjappa's answer for CUDA 7.5:

    Compute Capability # Cores
    1.x: 8
    2.0: 32
    2.1: 48
    3.x: 192
    5.x: 128

    Notes:

    • CUDA 7.5 no longer supports device with compute capability 1.x.
    • These aren't really 'cores' in the sense of CPU cores. See this question here on Stack Overflow.
    • In Maxwell GPUs (5.x), the number of 'cores' per multiprocessor has decreased.
    • I got the additional information from $CUDA_SAMPLES_DIR/common/inc/helper_cuda.h.

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