He told the INQUIRER that he measured the execution time to encode DV-format AVI files to MPEG, WMV, Divx and Xvid. He found that for encoding DivX and Xvid, Opteron 242's performance is roughly equivalent to a Pentium 4-2.8GHz, which matches the expectation from SPEC int/fp results. But, he added, using well known JapaneseMPEG 2 encoding software TMPGenc ((http://www.pegasys-inc.com/), the Opteron's performance is a staggering 30% lower than a Pentium 4-2.8GHz. He said: "At first I supposed it was because TMPGEnc is thoroughly optimised for the Pentium 4". But he checked the results from SiSoftware Sandra 2003, and found to his surprise that its multimedia integer performance is much lower than the Athlon XP, the architectural cousin of the Opteron. His results are as follows: Sandra Multimedia Int Opteron 242 (1.6GHz) 6300 Pentium 4-2.8GHz 11148 Athlon XP-2600+ 11614 But it's not all bad news for the Opteron. He said that well known Japanese archiving software GCA (http://www.emit.jp/gca/gca.html) compresses WAV files a staggering 50% faster than P4-2.8GHz, equivalent to a Pentium 4.4GHz chip, if such a beast existed. Source : Inquirer |
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