我現在都用RTX 3050在轉檔成H.265
不用CPU轉是因為不想等太久
用CUDA轉快多了、畫質我木眼看也還可以
前二天搶到PNY RTX 3070
請問如果改用RTX 3070轉檔
會不會比RTX 3050的轉檔速度還快？
現在2張卡在考慮要留哪一張
h.265編碼不是CUDA運算的，而是專門的硬體編碼器NVENC在運算
NVIDIA GPUs - beginning with the Kepler generation - contain a hardware-based encoder (referred to as NVENC in this document) which provides fully accelerated hardware-based video encoding and is independent of graphics/CUDA cores.
來源：https://docs.nvidia.com/video-technologies/video-codec-sdk/nvenc-application-note/
根據同一份文檔描述，同世代的GPU的NVENC性能基本上和GPU的時脈頻率（MHz）成正比
With every generation of NVIDIA GPUs (Maxwell 1st/2nd gen, Pascal, Volta, Turing and Ampere), NVENC performance has increased steadily. (...) The performance varies across GPU classes (e.g. Quadro, Tesla), and scales (almost) linearly with the clock speeds for each hardware.
所以純轉檔的話3050和3070沒差
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