corsair vs crucial

[shadowrider]

which one do you think is better for 256 or 512 pc2100 module?
anyone knows the canadian site where i can get the lowest price online?
(since newegg (http://www.newegg.com) doesn't ship to international)

[Daemonfly]

I think you'd be happy with either of them - they'reboth very good brands. I'm currently running a 512 Corsair XMS pc3500 and have been completely happy with it.

[nextbillgates]

I've got 512MB stick of Crucial PC2100 that is currently happily overclocked at 300Mhz and running at CL2. Very impressive.

YMMV, of course :)

[shadowrider]

Originally posted by nextbillgates
I've got 512MB stick of Crucial PC2100 that is currently happily overclocked at 300Mhz and running at CL2. Very impressive.

YMMV, of course :)

oh speaking about overclocking, how do you do it?
just increased the FSB? then the memory bandwith will be increased automatically?

[nextbillgates]

Originally posted by shadowrider
oh speaking about overclocking, how do you do it?
just increased the FSB? then the memory bandwith will be increased automatically?

Yes. Take it slow, though :)

[shadowrider]

ic thx.

another thing is that AFAIK, to get total# of memory bandwidth do you always multiply FSB by 2 ?
is it always that way?

so if i had 133 fsb, then i'd be running at 266 mhz memory right?

[nextbillgates]

another thing is that AFAIK, to get total# of memory bandwidth do you always multiply FSB by 2 ?

Just for DDR ;)

As an example, here is how I calculate my memory bandwidth:

My memory is currently clocked at 150MHz, which is effectively 300MHz since I'm using DDR. The memory is 64-bit, or 8-byte. In order to find my bandwidth, I multiply my clock speed by my byte width.

300 * 8 = 2400

So, my memory bandwidth is 2.4GB/s

:)

[shadowrider]

Originally posted by nextbillgates
Just for DDR ;)

As an example, here is how I calculate my memory bandwidth:

My memory is currently clocked at 150MHz, which is effectively 300MHz since I'm using DDR. The memory is 64-bit, or 8-byte. In order to find my bandwidth, I multiply my clock speed by my byte width.

300 * 8 = 2400

So, my memory bandwidth is 2.4GB/s

:)

ic. so if the memory bandwidth is 2.4 Gb/s, what's the 300 Mhz?

[nextbillgates]

Originally posted by shadowrider
ic. so if the memory bandwidth is 2.4 Gb/s, what's the 300 Mhz?

Clock speed

[bwkaz]

Well... it's actually double the clock speed.

The clock is running at 150MHz. Data is transferred at 300MHz (that is, 300 million times per second), because it's DDR RAM, and data gets transferred on the rising and falling edges of the clock signal square wave (normal SDR RAM only transfers on either the rising or falling edge, not both).

But because the data path is 64 bits wide, there are 64 bits of data transferred 300 million times a second. This is 8 bytes 300 million times a second, or 2.4 gigabytes a second.