I don't think you can compare WB and WT if the options are a DX2 WT and a DX4 WB. WB is slightly faster (if you can get it to work stable, which depends on the chipset), but the DX4 is faster anyway.

I agree. The difference between WB and WT on such a system is minuscule and dwarfed by the comparison of a DX2 and a DX4.

Approximatively, clock for clock WB is between 2 and 10% faster than WT depending on the application (especially its proportion of writes, where the benefit of the WB policy is).

OK.
Thank you.

I think i'll start with my blue heatsink DX2.

The actual difference depends on the L2 cache type and size, memory speed and, of course, on software running. If it doesn't fit well the L1 cache, it doesn't really matter if it's WB or WT. Nevertheless the L1 WT + L2 WB is also a good combination.

As far as I know there is a 5V WB chip. I think it's Intel SX955.

Yes exact.
Don't know if it worth to buy one (love my blue heatsink !)

Anonymous Coward wrote:

As far as I know there is a 5V WB chip. I think it's Intel SX955.

Cyrix (ST) also made DX2 5V WB:

Cx486DX2-66GP
ST486DX2-66GS
Cx486DX2-80GP
ST486DX2-80GS