Speed (n.sec) ratings on geforce3 ti200 memory chips

[Kraid2xd]

Is the speed rating of the ddr memory found on current geforce3 ti200 boards all the same speed (n.sec) or are there differences between brands? (i.e Gainward, Visiontek, MSI, etc)

Is there a list with this info out there on the web?

 

[Whizzy]

I believe there are some slight differences between them: I think there are cards with 5ns, 4ns or 3.8ns

Normally its 4ns which is good for 500Mhz (DDR).
I have an Asus8200 and its 4ns.