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Ganz genau das denke ich auch.Die CPU Berechnung an sich ist wohl um ein Vielfaches komplexer, so dass der RAM Speed relativ egal ist
ffmpeg version N-91510-gd134b8d85f (https://ffmpeg.zeranoe.com/builds/)
C0013-20: encoded 384 frames in 267.34s (1.44 fps), 69676.67 kb/s, Avg QP:24.03 [aac @ 00000241b0c69cc0] Qavg: 168.729; 134.039.636 Bytes
C0013-24: encoded 384 frames in 173.63s (2.21 fps), 26059.80 kb/s, Avg QP:28.32 [aac @ 000001b3be389940] Qavg: 168.729; 50.294.948 Bytes
C0013-28: encoded 384 frames in 114.75s (3.35 fps), 6621.95 kb/s, Avg QP:32.58 [aac @ 0000020ec33a9940] Qavg: 168.729; 12.973.920 Bytes
C0051-20: encoded 396 frames in 155.87s (2.54 fps), 23713.06 kb/s, Avg QP:25.17 [aac @ 0000023f3502f300] Qavg: 180.544; 47.219.862 Bytes
C0051-24: encoded 396 frames in 122.96s (3.22 fps), 10714.75 kb/s, Avg QP:29.45 [aac @ 00000296b8a3f300] Qavg: 180.544; 21.482.917 Bytes
C0051-28: encoded 396 frames in 100.71s (3.93 fps), 5365.59 kb/s, Avg QP:33.60 [aac @ 0000021db449f300] Qavg: 180.544; 10.891.509 Bytes
ffmpeg version N-91510-gd134b8d85f
C0013-20: encoded 384 frames in 250.42s (1.53 fps), 69676.67 kb/s, Avg QP:24.03 [aac @ 000001d7fe9e9940] Qavg: 168.729; 134.039.636 Bytes
C0013-24: encoded 384 frames in 167.91s (2.29 fps), 26059.80 kb/s, Avg QP:28.32 [aac @ 0000029c7b999940] Qavg: 168.729; 50.294.948 Bytes
C0013-28: encoded 384 frames in 109.62s (3.50 fps), 6621.95 kb/s, Avg QP:32.58 [aac @ 00000238d26c9940] Qavg: 168.729; 12.973.920 Bytes
C0051-20: encoded 396 frames in 150.88s (2.62 fps), 23713.06 kb/s, Avg QP:25.17 [aac @ 00000214eadbf300] Qavg: 180.544; 47.219.862 Bytes
C0051-24: encoded 396 frames in 119.83s (3.30 fps), 10714.75 kb/s, Avg QP:29.45 [aac @ 0000019b0da7f300] Qavg: 180.544; 21.482.917 Bytes
C0051-28: encoded 396 frames in 98.21s (4.03 fps), 5365.59 kb/s, Avg QP:33.60 [aac @ 00000128d044f300] Qavg: 180.544; 10.891.509 Bytes
ffmpeg version N-91510-gd134b8d85f
C0013-20: encoded 384 frames in [B]332.79s[/B] (1.15 fps), 69676.67 kb/s, Avg QP:24.03 [aac @ 000001bfc61f0b00] Qavg: 168.729
C0013-24: encoded 384 frames in [B]225.76s[/B] (1.70 fps), 26059.80 kb/s, Avg QP:28.32 [aac @ 000001f07d050b00] Qavg: 168.729
C0013-28: encoded 384 frames in [B]150.87s[/B] (2.55 fps), 6621.95 kb/s, Avg QP:32.58 [aac @ 000001c10e610b00] Qavg: 168.729
C0051-20: encoded 396 frames in [B]201.67s[/B] (1.96 fps), 23713.06 kb/s, Avg QP:25.17 [aac @ 000001a103f7fe00] Qavg: 180.544
C0051-24: encoded 396 frames in [B]161.58s[/B] (2.45 fps), 10714.75 kb/s, Avg QP:29.45 [aac @ 000001ce63dffe00] Qavg: 180.544
C0051-28: encoded 396 frames in [B]131.91s[/B] (3.00 fps), 5365.59 kb/s, Avg QP:33.60 [aac @ 0000016538aefe00] Qavg: 180.544
Hier mal meine Ergebnisse, habs einfach auf dem Desktop laufen lassen ohne speziell was zu schließen oder so
System: i7 7700K mit 4,4ghz Allcore Turbo (Standardtakt), 2x8gb DDR4-2666 CL16
Code:ffmpeg version N-91510-gd134b8d85f C0013-20: encoded 384 frames in [B]332.79s[/B] (1.15 fps), 69676.67 kb/s, Avg QP:24.03 [aac @ 000001bfc61f0b00] Qavg: 168.729 C0013-24: encoded 384 frames in [B]225.76s[/B] (1.70 fps), 26059.80 kb/s, Avg QP:28.32 [aac @ 000001f07d050b00] Qavg: 168.729 C0013-28: encoded 384 frames in [B]150.87s[/B] (2.55 fps), 6621.95 kb/s, Avg QP:32.58 [aac @ 000001c10e610b00] Qavg: 168.729 C0051-20: encoded 396 frames in [B]201.67s[/B] (1.96 fps), 23713.06 kb/s, Avg QP:25.17 [aac @ 000001a103f7fe00] Qavg: 180.544 C0051-24: encoded 396 frames in [B]161.58s[/B] (2.45 fps), 10714.75 kb/s, Avg QP:29.45 [aac @ 000001ce63dffe00] Qavg: 180.544 C0051-28: encoded 396 frames in [B]131.91s[/B] (3.00 fps), 5365.59 kb/s, Avg QP:33.60 [aac @ 0000016538aefe00] Qavg: 180.544
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 20 -strict experimental -c:a aac -b:a 128k "D:\Test\C0013-20.mkv"
pause.
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 24 -strict experimental -c:a aac -b:a 128k "D:\Test\C0013-24.mkv"
pause.
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 28 -strict experimental -c:a aac -b:a 128k "D:\Test\C0013-28.mkv"
pause.
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 20 -strict experimental -c:a aac -b:a 128k "D:\Test\C0051-20.mkv"
pause.
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 24 -strict experimental -c:a aac -b:a 128k "D:\Test\C0051-24.mkv"
pause.
C:\Video\VCT\ffmpeg.exe -threads 0 -y -i "D:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 28 -strict experimental -c:a aac -b:a 128k "D:\Test\C0051-28.mkv"
pause.
ffmpeg.exe -threads 0 -y -i "G:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 20 -strict experimental -c:a aac -b:a 128k "F:\Test\C0013-20.mkv"
pause.
-> 124.33s (3.09 fps), 69676.67 kb/s, Avg QP: 24.03 (Windows 8.1, Höchstleistung)
-> 123.97s (3.10 fps), 69676.67 kb/s, Avg QP: 24.03 (Windows 10, Höchstleistung)
ffmpeg.exe -threads 0 -y -i "G:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 24 -strict experimental -c:a aac -b:a 128k "F:\Test\C0013-24.mkv"
pause.
-> 92.17s (4.17 fps), 26059.80 kb/s, Avg QP: 28.32 (Windows 8.1, Höchstleistung)
-> 91.11s (4.21 fps), 26059.80 kb/s, Avg QP: 28.32 (Windows 10, Höchstleistung)
ffmpeg.exe -threads 0 -y -i "G:\Video\C0013.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 28 -strict experimental -c:a aac -b:a 128k "F:\Test\C0013-28.mkv"
pause.
-> 68.22s (5.63 fps), 6621.95 kb/s, Avg QP: 32.58 (Windows 8.1, Höchstleistung)
-> 70.10s (5.48 fps), 6621.95 kb/s, Avg QP: 32.58 (Windows 10, Höchstleistung)
ffmpeg.exe -threads 0 -y -i "G:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 20 -strict experimental -c:a aac -b:a 128k "F:\Test\C0051-20.mkv"
pause.
-> 84.77s (4.67 fps), 23713.06 kb/s, Avg QP: 25.17 (Windows 8.1, Höchstleistung)
-> 85.59s (4.63 fps), 23713.06 kb/s, Avg QP: 25.17 (Windows 10, Höchstleistung)
ffmpeg.exe -threads 0 -y -i "G:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 24 -strict experimental -c:a aac -b:a 128k "F:\Test\C0051-24.mkv"
pause.
-> 73.08s (5.42 fps), 10714.75 kb/s, Avg QP: 29.45 (Windows 8.1, Höchstleistung)
-> 73.46s (5.39 fps), 10714.75 kb/s, Avg QP: 29.45 (Windows 10, Höchstleistung)
ffmpeg.exe -threads 0 -y -i "G:\Video\C0051.MP4" -map 0:0 -map 0:1? -c:v libx265 -preset slow -crf 28 -strict experimental -c:a aac -b:a 128k "F:\Test\C0051-28.mkv"
pause.
-> 62.15s (6.37 fps), 5365.59 kb/s, Avg QP: 33.60
-> 62.51s (6.34 fps), 5365.59 kb/s, Avg QP: 33.60
Wenn ich das richtig sehe, dann ist dein Monster-System ungefähr doppelt so schnell wie mein 8700er. Das ist, wenn man die Preise vergleicht, ein bisschen ernüchternd.x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
Aktuelle Version ist allerdings 2.8, aber ob sich da was für uns Relevantes getan hat, ist die Frage.Updated libraries
- x265 2.6 (H.265/HEVC video encoding)