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This is one of the few domains where Intel's Pentium4 (2.0GHz) paired with the SIS 645 chipset and 333 MHz DDR data rate sustains a record of 131.7 fps.

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Something interesting happened here. Try as we might, for some reason we could not get the XP 1900+ beyond the 117,4 fps threshold set at default speed. On the contrary, the 1800+ literally took off with overclocking, getting rather close to the record set by the 131.7 fps record set by the 2.0GHz P4 on the SIS 645 with DDR 333. Athlon XP 1800+: purple; XP 1900+: lighter columns. Memory bandwidth and bus cycle time are the critical factors as it is to be expected by SSE optimized applications where the speed of data access becomes critical since instructions are already loaded.

Caligari TrueSpace 4.2 OpenGL

Raw floating point performance is what counts, regardless of bus frequency and multiplier setting. We could have used FPU-Mark but a real application that does the same has a higher value for the real life user.

The OpenGL variant of TrueSpace 4.2 once again establishes that FPU performance is the one and only criterion that determines the outcome of the benchmark. Note that the P4 with its double FPUs is almost exactly 30% slower on a clock by clock comparison

Caligari TrueSpace 5.1 Ray-Tracing (Details of the benchmark are given here)

An extremely powerful application depending only on actual execution of instructions, regardless of the physical clock speed.TrueSpace 5.1 is an excellent measure for workload/time or real CPU performance and as such, is influenced by idle cycles as well as we see in the outcome of the benchmark.

Runtime in seconds. Again, the more highly overclocked XP 1800+ takes the lead whereas the XP 1900+ at default setting outperforms the slower XP 1800+

Ulead MediaStudio Por 6.0

Video editing has become a major factor of home computing. Ulead Media Studio Pro is probably the most powerful software for the non-professional user. The benchmark comprises rendering a 50 MB .AVI file to an .MPEG format.

Runtime in seconds, shorter is better. The XP 1900+ takes a clear lead over the 1800+. Under overclocked conditions there is no difference between the two CPUs with the caveat that only full seconds are mesured.

The trend is clear, the XP 1900+ is more powerful than the XP 1800+ but under extreme overclocked conditions, the XP 1800+ takes a lead in almost all applications. The caveat here is that the XP1900 did not overclock as well as the XP 1800+ which may not be a typical feature. After all, both CPUs would more than qualify for a 2 GHz QuantiSpeed rating.

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