Standard Def Steve wrote:dexvx wrote:
They were similar speed in 2001 timeframe, but as time progresses and SSE2 compiler optimizations more commonplace, the P4 is actually quite a bit faster (which is why P4 aged well against the Athlon XP). As for overclocking, IIRC, S423 rarely hit above 2.2 GHz without excessive voltage. S478 Willamettes do a lot better because of platform improvements (one of the reasons why they moved to S478).
Later than that, at least for games. PIII-S and Athlon will run many 2002-2004 games better than a S423 rig. Not that you should be using either platform to play games from 2004.
Then you have extremely cache-constrained games like Doom 3, in which a PIII-S @ 1575 runs circles around a 2.6GHz Celeron (128K Northwood).
Benchmarks for older hardware is hard to find, but tomshardware has done cpu charts on a annual or bi-annual basis. 2004 era games, with a Willy 1.3 (the slowest one) vs Tualatin 1.2. And of course P4 scaled better than Tualatin. So if we look at the 1.7 Willy results, its even better, most of the times on par with the PR rating of the Athlon XP (Palomino), which was unheard of on release.
Doom 3, the Willy 1.3 beaten by Tualatin 1.2 about even with TBird 1.3
http://www.tomshardware.com/charts/cpu-charts … om-III,439.html
Far Cry, the Willy 1.3 even with Tualatin 1.2 and slightly behind TBird 1.33
http://www.tomshardware.com/charts/cpu-charts … Farcry,440.html
Q3 Team Arena, Willy 1.3 soundly beating Tualatin 1.2 and slightly edging TBird 1.33
http://www.tomshardware.com/charts/cpu-charts … -Arena,448.html
Wolfenstein, Willy 1.3 soundly beating Tualatin 1.2 and beating AXP 1500+
http://www.tomshardware.com/charts/cpu-charts … nstein,457.html
UT2004, Willy 1.3 soundly beat by Tualatin 1.2 but even to a TBird 1.3
http://www.tomshardware.com/charts/cpu-charts … nstein,457.html