How well does Corsair or Kingston oc?

[pinkorag]

I'm getting an rdram board probably from newegg and want to get everything in one shipment(proc/mobo/ram) and they only have three brands of rdram(corsair, kingston, and simpletech). I'm not trusting Simpletech either. I know Samsung is the best but they don't have any. What's the best oc'er out of Kingston and Corsair and how much can I expect it to go?

 

[MilkPowderR]

What range of FSB in mhz are you looking(planning) for?

 

[pinkorag]

I want to definitely go for 133 but that is a given. After that I want to do probably 140-150(150 being my absolute limit).

 

[MilkPowderR]

<< I want to definitely go for 133 but that is a given. After that I want to do probably 140-150(150 being my absolute limit). >>


Sorry for the late reply. I would say Corsair XMS DDR memories maybe the best bet. It edges out slightly compare to the other brands. but anyways, at those FSB speeds, you could pretty much will do well with any of the well-known brands like the Kingmax, Samsung, Crucial, Mushkin, etc..

 

[pinkorag]

Ok i have a different question and I don't want to start a new thread.

How does ddr ram at 333-400 mhz compare to rdram at 1066-1200? Is there a drastic difference because that's why i wanted rdram because of the great memory bandwidth but how does ddr at those speeds stack up?

 

[charlie21]

If my memory serves me right...

DDR PC2100 = 2.1 GB/s
DDR PC2700 = 2.7 GB/s
DDR PC3200 = 3.2 GB/s

RDRAM PC800 = 3.2 GB/s
RDRAM PC1066 = 4.2 GB/s
RDRAM PC1200 = 5.4 GB/s

 

[ManBOO YA]

<< If my memory serves me right...

DDR PC2100 = 2.1 GB/s
DDR PC2700 = 2.7 GB/s
DDR PC3200 = 3.2 GB/s

RDRAM PC800 = 3.2 GB/s
RDRAM PC1066 = 4.2 GB/s
RDRAM PC1200 = 5.4 GB/s >>



Thats almost right. The only reason that RDRam is getting speeds like that is due to the fact that it's dual channel. Divide that in half and you have the true speed of RDRam.

When Dual channel DDR comes out in the fall then you will see some major increases in memory bandwith.

 

[pinkorag]

RDRAM is here now. Dual channel ddr won't be out for I don't how long. DDR and RDRAM are both great performers. But I want rdram because it gives me performance I need NOW.

 

[charlie21]

Here's a good link about where RDRAM is going, down at the bottom of the page.link

 

[MagnetStone]

look here ( at AticoTech-Memory ) for RAM's Rating, Speed, BandWidth, Interchangeability, Un/Buffered, Non/Registered, Non/ECC Type

 

[jiffylube1024]

<< << If my memory serves me right...

DDR PC2100 = 2.1 GB/s
DDR PC2700 = 2.7 GB/s
DDR PC3200 = 3.2 GB/s

RDRAM PC800 = 3.2 GB/s
RDRAM PC1066 = 4.2 GB/s
RDRAM PC1200 = 5.4 GB/s >>



Thats almost right. The only reason that RDRam is getting speeds like that is due to the fact that it's dual channel. Divide that in half and you have the true speed of RDRam.

When Dual channel DDR comes out in the fall then you will see some major increases in memory bandwith. >>





<< RDRAM is here now. Dual channel ddr won't be out for I don't how long. DDR and RDRAM are both great performers. But I want rdram because it gives me performance I need NOW. >>



Exactly right (both posts). Although Dual Channel DDR won't be mainstream for about a year, give or take, Dual Channel RDRAM has been here for a year or more. Dual Channel DDR is the only way to outfit a P4 with RDRAM, so it's not an unfair comparaison.

In the future, Dual Channel DDR will kill RDRAM, but for now it's a pretty close battle between RDRAM (dual) and DDR sdram (single).

 

[jiffylube1024]

<< I want to definitely go for 133 but that is a given. After that I want to do probably 140-150(150 being my absolute limit). >>



Back to this original question, I don't think you will find any RDRAM that will go above 133 MHz at all, and most won't hit that speed. If you're talking about PC800 RDRAM, it's very hard to find any that will hit even 133 MHz FSB (you need quality Samsung memory on a Samsung PCB I believe for best reliability). If you're talking about PC1066 Memory, then it should overclock above 133 MHz (being its stock speed) but I don't think PC1066 is out yet.

If you want to go to 150 MHz FSB then DDR SDRAM should be your memory of choice.

 

[charlie21]

One small correction - PC1200 RDRAM = 4.8 GB/s

And one addition - 150 Mhz DDR = 2.4 GB/s

... which is still less than PC800 RDRAM = 3.2 GB/s

But none of this peak theoretical bandwidth matters if you're not doing something that
actually needs it, such as video editing. For everyday applications and gaming,
you'd see better performance from a cheaper DDR based Athlon solution.

 

[pinkorag]

I'm looking into doing video work so rdram is a big plus. Also I can get my hands on Samsung rdram and I'd rather get that since everyone raves about it being able to oc so well. Also I've heard about certain Abit TH7-2's being better oc'ers than others? Is this true? I think it has something to do with a certain componenet of the board.

 

[charlie21]

If you're going to be doing video work, then the P4 + RDRAM rocks. Samsung is generally
considered to be the best quality RDRAM, so that will give you your best chance to overclock.
The motherboard that you choose needs to have clock generators that support a 533Mhz FSB,
more info on that can be found here.

I spent quite a bit of time researching this exact question for a friend that wanted a editing station.
My recommendation to him was an ASUS P4T-e and Samsung RIMMS with a P4 1.6a, running at
133 FSB for a final clockspeed of 2.1Ghz. Unfortunately, he decided not to build it, so I can't tell you
how it went. According to what I've read, that's the way to go. But, if you can wait a month or two,
the official 133 FSB parts should be out and then you wouldn't have to worry about overclocking.