NVENC Pascal vs Turing
Pascal GPU を入手したので、ffmpeg のベンチを測る
GPU
|
Quadro K2000 |
Quadro P400 |
GTX 1660 |
| Arch |
Kepler |
Pascal |
Turing |
| Core Name |
GK107 |
GP107 |
TU116 |
| CUDA Core |
384 |
256 |
1408 |
| MEM |
2GB GDDR5 |
2GB GDDR5 |
6GB GDDR5 |
| TDP |
51W |
30W |
120W |
使用機材
| HOST HARD |
|
| CPU |
Xeon E5-2670 v2 |
| M/B |
SABERTOOTH X79 |
| MEM |
DDR3 mix 48GB |
| System SSD |
WDS120G2G0A (SATA) |
| Data SSD |
WDS500G2B0B (USB3) |
| SOFTS |
|
| OS |
ubuntu 18.04 |
| ffmpeg |
3.4.6 |
| driver |
440.26 |
使用動画
| TEST DATA 1 |
|
| Duration |
3m 51s |
| W x H |
3840 x 2160 |
| Fps |
30 |
| bitrate |
14M |
| TEST DATA 2 |
|
| Duration |
2m 19s |
| W x H |
1920 x 1080 |
| Fps |
59.78 |
| bitrate |
22M |
使用コマンド
CPU
time ffmpeg -i hoge.webm -b:v 25M -c:v h264 -vf scale=1920:-1 cpu.mp4
GPU
time ffmpeg -i hoge.webm -b:v 25M -c:v h264_nvenc -vf scale=1920:-1 gpu.mp4
結果
| Result 1 |
Xeon E5 |
K2000 |
P400 |
GTX1660 |
| time(s) |
155 |
96 |
99 |
98 |
| speed |
1.5x |
2.41x |
2.35x |
2.37x |
| Result 2 |
Xeon E5 |
K2000 |
P400 |
GTX1660 |
| time(s) |
170 |
103 |
64 |
64 |
| speed |
0.818x |
1.34x |
2.18x |
2.17x |
なんか、どこかボトルネックになってそう・・・
（心当たりがありすぎる）
