russo121
3rd November 2005, 01:27
From extemetech.com
http://www.extremetech.com/article2/0,1697,1880749,00.asp
"...Encoding this nearly 5-minute clip, at DVD resolution, takes about 2 minutes 17 seconds with DivX 6, with single-pass encoding at 1 megabit. Windows Media Encoder can produce a high-quality single-pass transcode to WMV9 at 1 megabit in about 4:35. Windows Movie Maker 2 takes a few quality shortcuts to produce a DVD resolution clip at 1.5 megabits in 2:05. That's all pretty good: This is, after all, one of the fastest CPUs money can buy, paired with very fast RAM.
How fast does ATI's new Avivo Transcode app get it done? Try 24 seconds! Okay, that's "give or take a second," because the MPEG-4 profile finished a 1-megabit encode in 23 seconds, the MPEG-2 and Windows Media Video 9 profiles were done in 24, and the DVD profile at 6 megabits finished in 25 seconds. That's all at the default full resolution, too. Crunching down the output resolution by choosing the "WMV9 for PMC (Portable Media Center)" profile at 700 kilobits per second completed the job in 17 seconds...."
"...Still, this is worth getting excited about. A 5x performance advantage over the CPU isn't the kind of thing that will be leapfrogged by dual-core CPUs and multithreaded encoders, or by any CPU released for some time. Every manufacturer of video transcoding software should be absolutely beating down a path to ATI's door right about now, figuring out how it can add that "GPU acceleration" checkbox to its application as quickly as possible..."
The real question here is - Is it possible to use all the features of h.264 High Profile with this transcoding program? Anyway, that's a good and interesting start. ;)
http://www.extremetech.com/article2/0,1697,1880749,00.asp
"...Encoding this nearly 5-minute clip, at DVD resolution, takes about 2 minutes 17 seconds with DivX 6, with single-pass encoding at 1 megabit. Windows Media Encoder can produce a high-quality single-pass transcode to WMV9 at 1 megabit in about 4:35. Windows Movie Maker 2 takes a few quality shortcuts to produce a DVD resolution clip at 1.5 megabits in 2:05. That's all pretty good: This is, after all, one of the fastest CPUs money can buy, paired with very fast RAM.
How fast does ATI's new Avivo Transcode app get it done? Try 24 seconds! Okay, that's "give or take a second," because the MPEG-4 profile finished a 1-megabit encode in 23 seconds, the MPEG-2 and Windows Media Video 9 profiles were done in 24, and the DVD profile at 6 megabits finished in 25 seconds. That's all at the default full resolution, too. Crunching down the output resolution by choosing the "WMV9 for PMC (Portable Media Center)" profile at 700 kilobits per second completed the job in 17 seconds...."
"...Still, this is worth getting excited about. A 5x performance advantage over the CPU isn't the kind of thing that will be leapfrogged by dual-core CPUs and multithreaded encoders, or by any CPU released for some time. Every manufacturer of video transcoding software should be absolutely beating down a path to ATI's door right about now, figuring out how it can add that "GPU acceleration" checkbox to its application as quickly as possible..."
The real question here is - Is it possible to use all the features of h.264 High Profile with this transcoding program? Anyway, that's a good and interesting start. ;)