Pifast and ScienceMark 2.0
The benchmark graphs will be ordered by name and not performance. 3 Intel processors on 3 different chipsets and a further 5 AMD high-end processors should indicate where the 3.46GHz Extreme Edtion CPU and 925XE chipset stand in relation to others. We kick off a look at performance with ScienceMark 2.0's memory analysis.
Remember that both LGA775 processors are run with system memory at 533MHz. All other combinations make do with DDR1 RAM run at 400MHz, albeit with super 2-2-2-5 timings. So compared to a similar 3.6GHz Prescott LGA775 CPU and i925X Alderwood combination, ScienceMark 2.0 findings are positive. What about latency?.
Latency looks pretty good for a chipset that has a discrete memory controller, but it all fades into insignificance when memory controllers are run at full core speed, a la Athlon 64.
Pifast calculation results are interesting when compared to 3.4GHz 200MHz S478 Northwood CPU's. The extra 2MB of L3 cache present on an Extreme Edition CPU always helps a touch here. Most of the 1.5-second advantage is down to that and not increases resulting from faster system bus speeds. More importantly for some, it's also around 20% slower than an AMD FX-55.
