Linked by Thom Holwerda on Mon 16th Jun 2008 21:51 UTC, submitted by irbis
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RE[2]: dont underestimate AMD
by Redeeman on Tue 17th Jun 2008 11:57
in reply to "RE: dont underestimate AMD"
"
a very very optimized core2 asm(with lots of core2 hacks) gmp is slower on a 3.2ghz core2 45nm than standard x86_64 asm on a 2.6ghz amd64..
a very very optimized core2 asm(with lots of core2 hacks) gmp is slower on a 3.2ghz core2 45nm than standard x86_64 asm on a 2.6ghz amd64..
I'm assuming that you're running the Core2 in 32 bit mode and the AMD is running in 64 bit mode? That'll explain your difference as applications like GMP and OpenSSL benefit loads from the wider integer registers. "
no, both are naturally 64bit.. im not stupid. These are simply the results.




Member since:
2005-07-07
a very very optimized core2 asm(with lots of core2 hacks) gmp is slower on a 3.2ghz core2 45nm than standard x86_64 asm on a 2.6ghz amd64..
I'm assuming that you're running the Core2 in 32 bit mode and the AMD is running in 64 bit mode? That'll explain your difference as applications like GMP and OpenSSL benefit loads from the wider integer registers.