> >I just picked up OWC's new $150 G4/"533", for me Beige G3. I'm running it
> >at 466: it's really a 450 and I'm not all that into overclocking... besides,
> >at 533 you have to run the cache at 2.5:1 or 213 MHz... I suspect that
> >overall system performance at 500 (250 MHz cache) or even 466 (233 MHz
> >cache) may actually be better.
> In general, results from real world use indicate that faster CPU MHz
> overcomes a slightly slower cache. Benchmarks tend to favor the
> higher cache speed/lower CPU speed.
Interesting results from your benchmarks, though. I suggested that overall
performance at 500/250 may be faster, and that even 466/233 might. Your
benchmarks indicate that 500/250 *is* faster, and I'm losing about 6% by
sticking to 466/233:
CPU Performance
450/225: NA +0.0% NA
> 466/233: 1560 +3.5% NA
> 500/250: 1650 +11.1% +5.7%
> 533/217: 1630 +18.4% +4.4%
And that's with Macbench, which seems to be relatively CPU-bound, at least
it predicted better performance from my Sonnet G3/400 than I really got.
Seems like a reasonable stopping point. I'm overclocking the chip by 3.5%
because I can't set it to exactly 450. To get another 5% I'd have to
overclock it by 1/9th (about 11%).
Given that it runs pretty hot already, I think I'll stick with a nice safe
3.5% overclock. I'm already looking for a good way to fit an extra fan in
there... there isn't much clearance so I can't just stick a CPU muffin on
top.
Anyway, the point is that the OWC chip IS an outrageously good deal. :)
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