i had a VIA Apollo Pro 133Z (the same as 133A but has AGP Pro too) and now i have MSI 815EP Pro-R with i815EP Chipset.. i would say that with the cas 3 setting the performance is the same exactly .. my RAM couldn' t go cas2 with the via chipset, but it runs quite fine with the i815 one .. the performance now in sandra's memory benchmark is :
PIII 800@930 155 with VIA 133Z at sandra : 384 / 456 (cas3)
PIII 800@800 133FSB (no OC) i815EP cas3 at sandra: 390/460
i cant overclock it more with the VIA one ..
I dont now if really the pc is faster in cas2 800 than cas3 930 or the benchmark shows false things... i must say that there is not only the speed..
the i815 chipset is more stable that the VIA and also, more compatible .. it is not buggy !! after seeing some benchmarks i had placed them
1st: i815
2nd:i440BX
3rd: VIA 133A (133Z is the same now..)
4th: i820 (yeap, its not only the problems, it has low performance.. my pc at cas3 800mhz with VIA 133Z runs faster than the i820 with a PIII 1 GHz)
i440BX is supposed the best chipset .. seeing the performance of this ASUS CUSL2 i say that stable, fast, overclockable, but cant reach i815 (133fsb is high for it .. there is not only the VGA and the PCI problem .. a celeron 800 at 100fsb can be higher in a MSI BX-Master than a cel 800 in an ASUS CUSL2 .. bye !!