Transaction

j"1LAnZuoQdcKCkpDBKQMCgziGMoPC4VQUckM{<div class="post">That big of a difference in speed, by a factor of 4 or 6, feels like it's likely to be some quirky weak spot or instruction that the old chip is slow with. &nbsp;Unless it's a touted feature of the i5 that they made SSE2 six times faster.<br/><br/>A quick summary:<br/>Xeon Quad &nbsp; &nbsp; &nbsp; &nbsp;41% slower<br/>Core 2 Duo &nbsp; &nbsp; &nbsp; &nbsp;55% slower<br/>Core 2 Duo&nbsp; &nbsp; &nbsp; &nbsp; same (vess)<br/>Core 2 Quad &nbsp; &nbsp; &nbsp;50% slower<br/>Core i5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;200% faster (nelisky)<br/>Core i5&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 100% faster (vess)<br/>AMD Opteron &nbsp; &nbsp;105% faster<br/><br/>aceat64:<br/>My system went from ~7100 to ~4200.<br/>This particular system has dual Intel Xeon Quad-Core CPUs (E5335) @ 2.00GHz.<br/><br/>impossible7:<br/>on an Intel Core 2 Duo T7300 running x86_64 linux it was 55% slower compared to the stock version (r121)<br/><br/>nelisky:<br/>My Core2Quad (Q6600) slowed down 50%, <br/>my i5 improved ~200%, <br/><br/>impossible7:<br/>on an AMD Opteron 2374 HE running x86_64 linux I got a 105% improvement (!)<br/></div> text/html