Sure, one thing on that Novatech site must be written in error. Is it the series or the manufacturer code, I don't know. Yes, this model code belongs to the 7200.10 series, not to the 7200.9
But both they are 2-platter drives, with platter size 125GB or more (most probably 133GB short-stroked but may-be also newer 160-166GB short stroked version).
If it is 7200.9/250GB then it is noticeably slower than 7200.9/160GB drive. If it is perpendicular 7200.10 and uses higher density platters, it may be as fast as 7200.9/160GB but I doubt it will be faster. Although theoretically it can be a bit faster if 160-166-188GB short stroked platters used. Still, these small differences in pure synthetic reading speed are not noticeable in real life applications.
Thanks. Do we think that noise and performance will be similar to the 7200.10 320GB model? In other words, noise and not that special? I'm still intrigued...