On Tue, 12 Jun 2007 07:17:02 -0700,
"jameshanley39@yahoo.co.uk" <jameshanley39@yahoo.co.uk>
wrote:


>I'm not up on PC2 speeds.. But I know that with PC amounts, they went
>PC 66, PC 100, maybe even PC133 and PC150 (for the bus), Then they
>came up with DDR. What was the lowest speed they made DDR at ?

PC66 was unofficial, at the time memory was typically called
66MHz. PC100 and PC133 are valid but PC150 was a made-up
term by companies wishing to denote their claim that the
memory could do 150MHz... on a board spec'd for 133MHz
memory bus.

DDR started at PC1600, IIRC.


>
>With DDR, PC became redefined, to be followed by bandwidth amount
>(actual bus speed * 16). And in the DDR notation, (DDR 266, - noting
>that one doesn't write Mhz after effective speed..)

Actually it was never in DDR notation, DDR was to denote the
FSB speed and the memory was assumed to be at the same clock
rate, but was always correctly called PC(nnnn).