JC, Re: "I will assert that a P4 with SDRAM may yet be a poor performer in ScienceMark. Coppermine-128/Celeron at 1.00GHz approaches the P4-1.50 in the two tests that are not memory bound, and there are no P4+i845 tests in the memory intensive test, Primordia."
There is a ScienceMark measurement at the end of this review.
xbitlabs.com
The Pentium 4 1.5GHz with SDRAM approaches a 1.1GHz Celeron in the Liquid Argon and QMC tests, but the real benefit is through the Primordia test, where the Pentium 4 scores more than 2x the 1.1GHz Celeron. An interesting thing about the QMC test is that the Pentium 4 loses to the 1.1GHz Celeron, yet it is able to beat the 1.0GHz Pentium III. The Liquid Argon test behaves similarly, since the 1.1GHz Celeron is able to beat the 1.0GHz Pentium III, and the Pentium 4 1.5GHz with SDRAM beats them both. My only explanation is that these tests fit entirely in the L2 caches of these processors, even the 128KB cache of the Celeron. Therefore, the test is more indicative of clock frequency and micro-architecture, where the Pentium 4 1.5GHz falls roughly between a 1.0GHz and 1.2GHz Coppermine in QMC and Liquid Argon. Of course, Primoria scores even better than the 1.1GHz Duron, but the 1.13GHz Pentium III-S scores the highest, probably due to the 512KB of L2 cache, since Primordia seems fairly memory intensive. Nevertheless, the Pentium 4 with SDRAM keeps up rather well.
wanna_bmw |
