SuperPI	Source: SuperPI

SuperPI calculates the number PI to 1 Million digits in this raw number crunching benchmark. The benchmark is fairly diverse and allows the user to change the number of digits of PI that can be calculated from 16 Thousand to 32 Million. The benchmark, which uses 19 iterations in the test, is set 1 Million digits.

Lower numbers denote faster calculation times (seconds), and hence, better performance.

Super PI (1 Million digits) Benchmark Results (Lower is better)
	Processor	Seconds	Ranking
1.	Pentium 4 3.2C	45
2.	AthlonXP 3200+	44
3.	Athlon64 3200+	43
4.	Athlon64 3200+ Oc'ed (2.25 GHz)	40

It seems that the Athlon64 3200+ has a bit more FPU power than the other processors.

POVRay	Source: POVRay.org

The Persistence of Vision Ray Tracer (POV-Ray) is an all round excellent package, but there are two things that particularly make it stand out above the rest of the crowd. Firstly, it's free, and secondly, the source is distributed so you can compile it on virtually any platform.

Lower numbers denote faster calculation times (seconds), and hence, better performance.

POVRay Benchmark Results (lower is better)
	Processor	Seconds	Ranking
1.	Pentium 4 3.2C	179
2.	AthlonXP 3200+	144
3.	Athlon64 3200+	145
4.	Athlon64 3200+ Oc'ed (2.25 GHz)	130

POVRay is another pure FPU benchmark and here we see that the Athlon processors have a lot more FPU.