Friday, September 19th 2008
Intel Decides to Unlock the Memory Multiplier of its Core i7-920 and Core i7-940 CPUs
Thanks to some inside information that was published today by various hardware portals, now we know that Intel has decided to enhance the overclocking capabilities of two of its still to be released non-Extreme Core i7 processors. Intel's LGA 1366 Core i7-940 and Core i7-920, which are clocked at 2.93GHz and 2.66GHz respectively will now boast unlocked memory controlers, meaning that users will be able to change the memory multiplier and thus the memory frequency beyond the stock DDR3 800/1066MHz speed. The unlocked memory multiplier will also allow the QPI speed to be changed. The Quick Path Interconnect (QPI) bus resembles AMD's Hypertransport bus. A slide change in the memory frequency will result in higher QPI bus speed, just like in the current AMD processor family. Previously, we knew that only the Core i7 Extreme processors like the 3.2GHz Core i7-965 Extreme Edition will have these overclocking features. I sincerely hope that with this last minute change Intel will make us overclockers really happy.
Source:
Expreview
14 Comments on Intel Decides to Unlock the Memory Multiplier of its Core i7-920 and Core i7-940 CPUs
I think a few people suspected that Nehalem was lukewarm. And I doubt an unlocked memory controller will make it boil.
:roll:
I don't think I'll be buying into that platform for at least another 12-18 months after launch, assuming DDR3 drops near DDR2 prices by then!
But, regarding the Vdimm=Vcore (sort of) 'issue', I think that has nothing to do with unlocking, it's simply built that way thus far (unless I missed something). But AFAIK it has everything to do with the pins (or balls? WTF, I dont know).
But to be honest, I dont see the huge hype in i7 at all. It's basicly at one point a move in technology where AMD was all the time but coming with the better performance. On the other point, i7 is aimed mainly to catch up where it left behind on the server market.
i7 will mainly introduce more fun in OC'ing, but if you were looking for more fun into OC'ing, K10 has been there all the time for all the fun you might need.
And regarding power consumption and Solaris' post, couldnt say it better. Actually, I always say that if you're that much into tree talking, you even shouldnt have a PC in the first place. One thing that's just annoying is that people were always laughing at AMD's power consumption while it had a complete other architecture, now i7 has the same and it's at once less of an issue or Intel is getting flaimed over it. Native core designs are by no means the same as MCM. Also it's their first native core design, I think there will be some promising revisions. Although, Ive got to admit it was quite weird to see i7 coming with that TDP based on a high/k and metal gate 45nm process, but as said, revisions:rolleyes:.
Also, this article is not saying the multi is unlocked, just the MCH and QPI settings, allowing you to overclock better than without this. The Extreme is still going to be the only multi unlocked chip.
The features mentioned in this article only bring the the overclocking features of the bloomfield in par with what you could practically do with a Core 2 based CPU. Granted there are differences because of the on-board memory controller and the QPI replacing the FSB for some things and not for others, but that's what I understood it to mean, in a nutshell.