Which one of these rams are better/faster?

[John Wilson]

Which one of these are the better/faster memory? Thank you!

A) 2 x 184-pin DIMM Sockets support max. 1GB PC2700/PC2100/PC1600 non-ECC
DDR SDRAM memory

B) 2 x 168-pin DIMM Sockets support max. 1GB PC133/PC100 non-ECC SDRAM
memory

 

[Bob Knowlden]

The DDR is faster. I doubt that it's fully 2X the speed of the non-DDR SDRAM
for real applications, but it is faster. Some systems (AMD Athlon 64 Socket
939, Intel 875 chipset) support dual-channel mode, which is faster yet.

Do you have a choice? DDR and non-DDR SDRAM are physically incompatible, and
most mainboards only have slots for one or the other.

I have seen specs for some mainboards with both 168 pin and 184 pin sockets,
but they did not permit mixing types.

Newer mainboards for Intel CPUs use 240 pin DDR2, which is incompatible with
the others.


Address scrambled. Replace nkbob with bobkn.

 

[John Wilson]

Yes, my MOBO allows for both, so I have a choice. Asus P4S533-MX.

Thanks for the reply.

 

[Egil Solberg]

Yes, my MOBO allows for both, so I have a choice. Asus P4S533-MX.

Then use the DDR-slots. It is way faster. A P4 with 168pin SDRAM is very
limited.

 

[Bob Knowlden]

Get at least PC2100 DDR. Not only is the performance better than
PC100/PC133, it's a better match to a P4 CPU (or a Celeron, I suppose).

At the moment, DDR is probably *cheaper* than non-DDR SDRAM of a given
capacity (at least through the online vendors like Crucial or Newegg), so
DDR is the best choice in every way.

Bob Kn.