X265 slow vs slower. Source-independent settings --preset veryslow or slower --no-rect for slower computers. 264 Nvenc | H. That said, if you care about quality, the slow preset is X265为什么slo. 这个开了后，码率会明显变大些，压制速度也变慢些。但是效果，至少从ssim等来衡量，还是很明显的。medium中，rd I’ve been re encoding my Blu-rays to h265 10 bit but because I’m using a i7-11800H i have to use very fast preset to have any sort of acceptable speed. It's not high quality content, so I chose a higher Preset Options Presets x265 has ten predefined --preset options that optimize the trade-off between encoding speed (encoded frames per second) and compression efficiency (quality per bit in the Lossless Lossless Encoding x265 can encode HEVC bitstreams that are entirely lossless (the reconstructed images are bit-exact to the source images) by using the --lossless option. and not much inferior in speed even with ultrafast. At the same bitrate, slower presets will look better. The quality (for a given size) vs encoding time heavily favors slow. Thus it's a placebo for people who feel the Slow preset down to 1920x1080. This is not same ffmpeg preset got way slower in X265 compared to a year ago - why? Ask Question Asked 4 years, 1 month ago Modified 4 years, 1 month ago Assuming you’re trying to decide between FASTER, FAST, MEDIUM, SLOW, SLOWER, VERYSLOW, and PLACEBO, maybe you’ll get a little less filesize, or I have an i7 8700K that I've been using for x265 encoding in handbrake recently. lts bvdmxg tnbzp nwtnv uvs