Which DDR3 memory can run at 2.0GHz effective speed?

Big.Wayne · 5 Jan 2009 at 03:47

Hello,

I'm interested to know if there are any DDR3 memory kits that can run at 1000MHz/DDR3-2000 . . .

Not been keeping my eye on DDR3 so not really sure whats what?

Big.Wayne · 5 Jan 2009 at 04:21

Cheers fornowagain!

Can you confirm also that these are the correct speed ratings for DDR3 please?

DDR3 PC3-8500/DDR3-1066
DDR3 PC3-10600/DDR3-1333
DDR3 PC3-14400/DDR3-1800
DDR3 PC3-12800/DDR3-1600
DDR3 PC3-16000/DDR3-2000

Can't believe memory is able to run this fast, I feel old lol!

Big.Wayne · 5 Jan 2009 at 16:27

mpj88 said:
if you are using an intel chipset i dont think its possible to get the memory to run at the full 2000

I'm looking at LGA775 systems that use DDR3 which It seems can actually use up to 2GHz DDR3.

It's the P5Q3 above that caught my eye, sells cheaper than a DDR2 based P5Q-Pro and can run DDR3 at 1800MHz, maybe even 2GHz which seems very nice!

Of course DDR3 is expensive still and I'm just curious to see how Intel® Core™2 processors work when you give them massive memory bandwidth . . . I could probably only afford a 2GB kit with nice timings or maybe a 4GB kit but CL9!

Big.Wayne · 6 Jan 2009 at 13:34

w3bbo said:
Forget trying to get 2000mhz on 3 or 4 series Intel chipsets. For that you will need 790i as posted above.

What's the deal then w3bbo? . . . what speed was you able to get some DDR3 running then on the p45 system please?

Big.Wayne · 7 Jan 2009 at 21:38

Rich Weatherstone said:
Intel chipsets, due to them not being able to run the memory unlinked from the CPU, will struggle to obtain the 2000MHz rated speed, with most topping out around between 1800-1900MHz.

I'm not sure if I'm reading that right or perhaps I'm not aware of the differences between an Intel and nVidia chipset but you can run memory at several different speeds different from the CPU (async) on a INTE chipset. I've often seen (nVidia chipset) posters refere to *unlinked* memory but assumed it was just different slang for async?

Can you literally just dial-in any memory speed on the nVidia boards or?

w3bbo said:
I never tried on P45 m8, but some of my fellow reporters said they topped out at around 15-1600.

Thanks for the reply although I'm not sure if I can assume 3rd party information to be true!

(you should no me by now!). If you had tested it yourself I would take that as almost gospel!

So I will have to be less distracted and get off my lazy *** and do some reading although as always there are contradicting views, w3bbo says DDR3 can only run up to 1.5GHz/1.6GHz in a DDR3 P45/Intel® Core™2 machine and Rich Weatherstone reports 1.8GHz/1.9GHz is possible!

Anyway great replies all, I really didn't know much about DDR3 before this thread so thanks for the links and pics.

If I get some spare time (and money) I may pick up a DDR3 based P45 board and a £100 DDR3 kit that has a chance of hitting 2GHz and have a play! :cool: