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Intel's Prescott-2M: Pentium 4 660 and Pentium 4 Extreme Edition 3 73GHz
[Abstract]
ThoughtsFirstly, I will run 64-bit benchmarks using Windows XP 64-bit as soon as it's released. Some early testing with RC2 shows weirdness. While that weirdness may well persist in the final...
[Content] PCDigitalMobileGame
ScienceMark 2.0 Primordia, We Crypto, Realstorm 2004ScienceMark 2.0 Primordia 
Running ScienceMark's Primordia benchmark using Silicon gives you a nice CPU-limited benchmark that likes plenty of cache memory on the processor and isn't adverse to a strong FPU and CPU frequency increases. So it scales nicely with a CPU's general processing ability and speed, ranking processors quite well in a general sense. With 2MiB of L2, the 660 is faster than the 3.46 XE, despite that processor having a faster bus clock, more memory bandwidth and less memory latency. The working set for Primordia therefore sits somewhere in between that 1MiB and 2MiB boundary, allowing all the large cache P4s to show off.
The Athlons' FPU power takes some beating though and even with only 1MiB of L2, they still rule the roost.
Crypto Crypto is a small benchmark that does AES encryption on data, that I've been hacking on in recent times. Built in C# using the .NET framework, it should become generally available shortly. I designed it with raw FPU power in mind, just for this article. I aimed for a working set somewhere under 1MiB.
The P4s rank themselves by MHz with the Athlons doing the same, sitting higher than the Intel processors by virtue of FPU ability.
Realstorm 2004 
Again, Realstorm is all about the FPU power, caring little for memory bandwidth (as long as it's enough) or cache size. The 3D renderer therefore ranks the processors by MHz and into two groups, one for the Pentium 4s and one for the unbeatable AMD64 processors.
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Intel's Pentium 6xx Family CPUs in the Spot Light (2005-02-24)