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1.6 GHz L7500 and 2.2 Ghz T7500 performance difference?
Posted: Fri Jun 22, 2007 11:43 am
by futureaussiecto
Does anyone know what kind of difference in performance these would posess with 2GB ram in an X61/X61s?
Ive looked through guides but i cant quite find a direct comparison. The difference in weight doesnt seem to be too large so im just wondering how much more powerful the X61 is compared with the X61s?
Posted: Sat Jun 23, 2007 9:01 am
by futureaussiecto
anyone??
Posted: Sat Jun 23, 2007 9:15 am
by tomh009
There are very few comparison benchmarks out there for the LV CPUs. The best apples-to-apples one is this one:
http://www.notebookreview.com/default.asp?newsID=2828
These are the previous Core 2 Duo models, but basically a 2.0 GHz T2500 was only about 6% faster than the 1.66 GHz LV version in spite of a 20% clock speed advantage. Extrapolate to today's L7500 and T7300 (the fastest available on the X61), both now with 4 MB of cache, and I would expect to see a 10-15% performance difference on pure CPU tasks.
Small enough difference, IMHO, to make one pick the X61s with the lower weight and the brighter Ultralight LCD panel.
Posted: Sat Jun 23, 2007 9:23 am
by futureaussiecto
tomh009 wrote:There are very few comparison benchmarks out there for the LV CPUs. The best apples-to-apples one is this one:
http://www.notebookreview.com/default.asp?newsID=2828
These are the previous Core 2 Duo models, but basically a 2.0 GHz T2500 was only about 6% faster than the 1.66 GHz LV version in spite of a 20% clock speed advantage. Extrapolate to today's L7500 and T7300 (the fastest available on the X61), both now with 4 MB of cache, and I would expect to see a 10-15% performance difference on pure CPU tasks.
Small enough difference, IMHO, to make one pick the X61s with the lower weight and the brighter Ultralight LCD panel.
good good, thats what i was hoping for, plus (i presume) the batter life would be better with a lower voltage!
Posted: Sat Jun 23, 2007 9:29 am
by tomh009
tabook quotes the battery life (with the 8-cell option shared by the two models) at 7.8h for the X61 and 9.0h for the X61s.
hmm
Posted: Sat Jun 23, 2007 10:14 am
by tmkim80
Are you sure it's only a 6 percent performance difference? what are you basing this on?
Posted: Sat Jun 23, 2007 11:49 am
by tomh009
The benchmark tests on notebookreview.com -- see the link above.
Posted: Fri Aug 03, 2007 5:57 pm
by Antioch
You also have to remember that unless you're constantly compiling code or doing CPU intensive tasks your CPU is idling at a clocked down speed (~1ghz) so both the 1.6Ghz and 2.0Ghz would perform the same.
(They both don't clock down to the same speed - but the point I'm trying to make is that you're not utilizing the full capacity of your CPU most of the time so it really doesn't make much of a difference)