Pentium 4 3.46 Extreme Edition and 925XE: 1066MHz FSB Support is Here

The Test

Given that there's pretty much no performance benefit to the 1066MHz FSB as we've illustrated in the previous pages, we will offer the next several pages of benchmarks only as a reference point to show how the 3.46EE stacks up to the CPUs we compared in our most recent CPU review, but without our usual commentary. Based on what you've already seen, it should be no surprise that the 3.46EE is really no faster than the 3.4EE, but if you would like to see all of the individual benchmarks feel free to flip through the coming pages. Those who aren't interested should feel free to skip directly to the conclusion.

In addition to our usual tests we've included PC World's WorldBench 5, an application based test suite much like Winstone and SYSMark that incorporates many popular applications. Unlike the aforementioned benchmarks, WorldBench does not test multitasking power, rather focusing on single application performance, making it very complementary to our existing benchmarks. The one thing to keep in mind about the WorldBench results is that the variation between test runs can be pretty significant; we do everything to make sure that the results are as consistent as possible (multiple runs, throwing out outliers, etc...) but the variation between runs in these tests can be as high as 6% - thus we would suggest looking at performance differences only greater than 10% in these tests for any sort of significance. The rest of the tests have variations between runs of 1 - 3%.

Our hardware configurations are similar what we've used in previous comparisons, with one addition - our Athlon 64 testbed now uses the recently released nForce4 chipset. For a review of that chipset read our own Wesley Fink's review of NVIDIA's latest chipset with SLI support.

AMD Athlon 64 Configuration

Socket-939 Athlon 64 CPUs
2 x 512MB OCZ PC3200 EL Dual Channel DIMMs 2-2-2-10
NVIDIA nForce4 Reference Motherboard
ATI Radeon X800 XT PCI Express

AMD Athlon XP Configuration

Athlon XP 3200+
2 x 512MB OCZ PC3200 EL Dual Channel DIMMs 2-2-2-10
ASUS A7N8X Deluxe nForce2 400 Motherboard
ATI Radeon X800 XT AGP

Intel Pentium 4 Configuration

LGA-775 Intel Pentium 4 and Extreme Edition CPUs
2 x 512MB Crucial DDR-II 533 Dual Channel DIMMs 3-3-3-12
Intel D925XECV2 Motherboard (we used the same board for 1066MHz FSB and 800MHz FSB tests
ATI Radeon X800 XT PCI Express