Memory types explained please

[Sandos]

Whats the difference between

256Mb SDRAM PC-133 Cas-2 (CL2) Spec Micron Original 39.00
256Mb SDRAM PC-133 Micron 25.50
256Mb PC-133 ECC Registered SDRAM Micron Original 52.00

and if I have some of each will they work together? Is a higher CL better? Whats Non-Parity?
Im out of the loop (blissfully) and need some catching up now that I need a new system. I dont think I can justify a DDR system tho.

whats the difference here too?,
512Mb SDRAM PC-133 (32X8) Major 46.00
512Mb SDRAM PC-133 (64x4) 39.00


Thx all.

 

[soulm4tter]

lower CL is better. Its usually just 2 or 3, 2 peforming somewhat better than 3.

Non-Parity No-ECC is what you should get. Parity, ECC, and Registered is only for servers and can take a peformance hit.

The difference between
512Mb SDRAM PC-133 (32X8) Major 46.00
512Mb SDRAM PC-133 (64x4) 39.00

is the major is a name brand, while the other is generic. get major for that price difference.

out of all of those i suggest the 256Mb SDRAM PC-133 Cas-2 (CL2) Spec Micron Original 39.00

 

[MasterHoss]

Don't mess with ... (it looks like you pulled that from some weird Pricewatch company). Just go to GOOD CHEAP ASS RAM and get yourself some Crucial memory. You'll still have your Micron component on the Crucial RAM.

 

[Sandos]

Excellent, thx m8
So what if i mixed 2 different kinds like CAS2 and CAS3 or even different brands? I assume that at best ill just get the slower speed of the 2 or are they especially touchy about that these days?

its part of a www.scan.co.uk deal

thx

 

[MichaelD]

Hi Sandos,

With DDR costing very little (maybe $5 a stick, if that) more than SDR, combined with the 15-20% performance boost, there's really no reason to not go DDR when building a rig from scratch. That 15-20% performace boost is with today's DDR mobos's; once the KT266A, NForce and other newer boards that feature greatly refined DDR technology hit the streets, the performance difference b/t SDR and DDR will only only widen further.

I do see that you're in Ireland; I don't know how easy/difficult it is for you to obtain pc parts, maybe that will be the deciding factor. But here in the States, DDR memory is only a few dollars more than SDR, and DDR mobos are only a few dollars more than SDR ones. DDR is the future, offers more performance right now and will in the future too. Just something to think about. Good luck.

 

[Sandos]

I agree with you Michael but its just that this is a special deal (case, mobo, ram, fan, soundcard) saving about 50 pounds on that and then a raid DDR mobo is gonna be another 50 extra and I want 1gig ram. Thats alot for 10 or 15% increase. I might wait tho, the 761 A does look promising, any sign of them yet?