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Intel Core i7-920 versus i7-930

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Unicorn 19th May 2010, 17:12 Quote
Meh, I couldn't decide, so I have one of both :)
wuyanxu 19th May 2010, 17:18 Quote
the 920's are limited to 20x, so as this article said, to hit 4Ghz or higher requires more than just a good CPU chip.

yes, i am aware there's turbo mode tweak on most motherboards that bumps max multiplier to 21x for 920 (and 22x for 930) but you got to realise that it's turbo mode with added voltage. when i was testing my 860 (max to 21x) with turbo mode v1 enabled at 22x, there was a huge amount of voltage automatically added, and it wasn't stable with higher temperature than non-turbo overclock at the same speed.
Nowell @ CCL 19th May 2010, 17:19 Quote
I understand the 930 has a slightly higher multiplier which, helps with the O/C however; this is the only difference. They are both fantastic chips but if i had the choice i would get the newer.
Pete J 19th May 2010, 17:28 Quote
Ha! There are plenty of people on the forums who have bought a 930 to replace their 920, only to find that they couldn't reach their previous overclocking record!
Fizzban 19th May 2010, 17:28 Quote
Better buy is the newer chip. But if you wanted to save £50 pounds you really wouldn't be missing out on an appreciable difference in performance.
Omnituens 19th May 2010, 17:58 Quote
I'm having trouble getting my 920 past 3.2 on this stupid mobo, wish I had gone asus :(
doggeh 19th May 2010, 18:04 Quote
"You can pick up a 920 for around £170 for the usual UK retailers, whereas the 930 will set you back £50 more, around £230."

Anyone else spot a basic maths fail? And yes I know you've probably rounded the two prices and the difference is probably closer to £50 than £60 but it just looks daft! :P
Unicorn 19th May 2010, 18:17 Quote
Quote:
Originally Posted by Pete J
Ha! There are plenty of people on the forums who have bought a 930 to replace their 920, only to find that they couldn't reach their previous overclocking record!

My 930 hits 4GHz+ with much more ease than my 920 does, but as always YMMV.
Sloth 19th May 2010, 18:21 Quote
i7 920
i7 930
Same price if it wasn't for the temporary sale on the 920.

Prices never transfer perfectly, but it's strange that you guys are seeing such a huge difference. Just doing a strait currency change it ends up being UK 920=$245, US 920/930=$290, UK 930=$330.
Yslen 19th May 2010, 19:03 Quote
Quote:
Originally Posted by Sloth

Prices never transfer perfectly, but it's strange that you guys are seeing such a huge difference. Just doing a strait currency change it ends up being UK 920=$245, US 920/930=$290, UK 930=$330.

Britain: home of CCTV, little chefs and crazy product pricing.
Lizard 19th May 2010, 19:12 Quote
Quote:
Originally Posted by Sloth
Prices never transfer perfectly, but it's strange that you guys are seeing such a huge difference. Just doing a strait currency change it ends up being UK 920=$245, US 920/930=$290, UK 930=$330.

There's a big price difference in the UK at the moment because a load of 920s from Europe got dumped here a short while ago. Strictly speaking they are grey imports, not that I think most end-users care about that sort of thing.
GandalfDDUK 19th May 2010, 20:29 Quote
Quote:
Originally Posted by Lizard
Strictly speaking they are grey imports, not that I think most end-users care about that sort of thing.

Sorry to be a bit of a dunce here but what do you mean by that? I am relatively new to upgrading and building my own, I was looking into the whole 920 v 930 thing myself and was opting maybe for 920 to save a bit but not so sure now:?
Addie 19th May 2010, 20:35 Quote
Grey imports are goods that are not intended for distribution in a certain regions, still legal though so nothing to worry about.
bogie170 19th May 2010, 20:57 Quote
What mobo and ram to go with this baby? I already have a corsair h50 water cooler.
rollo 19th May 2010, 21:23 Quote
I own both chips

4.2ghz on 920
4.05ghz on 930

Water cooling both same mobo same memory. My 980 does 4.8ghz on water for comparison

And in my world the 930 is in a server at 3.4ghz and my mam got my 920 declocked to 3.4ghz also

980 destroys all
boy_lah 19th May 2010, 21:39 Quote
I'm a newbie that struggled with my 860 but with the 930 - I'm now at 4.2Ghz.
Vigilante 19th May 2010, 22:21 Quote
Hmm, I struggled with this same dilemma about a month ago. I decided to buy a 920 as it was significantly cheaper (And was available in an OEM variant, which suited me perfectly as I was buying a third-party cooler with it). From the details I've seen, it looks like I have bought some kind of overclocking monster chip.

My i7-920 (D0 stepping specifically, from Aria for £155) reaches 4ghz (200x20) on stock core voltage. It reaches 4.48 stable (megahalems air) with 1.34v. At this voltage and speed, the chip gets extremely hot (touching 85C), so I do not run it like this (I run it at 4ghz). I'm certain I'm also being limited by the fact that I am running 6 ram modules and have to bump QPIVTT significantly to run all 6 at their rated speeds of 1600mhz 8-7-7-24.

I'm wondering if this is just me getting lucky, or if BT.net has some "unremarkable" 920's in-house? I would love to have my chip tested by you guys, but I would have no machine to use in the mean time. :)
erratum1 19th May 2010, 22:36 Quote
At the moment get the 920, you would be a fool not to want to save £60. When the 920's sell out the choice won't exist anymore and you'll have to get the 930.
heir flick 19th May 2010, 23:15 Quote
i picked up a second hand 920 for £130 so saved £100 on a 930 so for me i think it was a bit of a no brainer
JustLeigh 19th May 2010, 23:26 Quote
Quote:
Originally Posted by Omnituens
I'm having trouble getting my 920 past 3.2 on this stupid mobo, wish I had gone asus :(

I love my 920. I can't get stable past 3.8 Ghz though. Like Omnituens, I wish I'd gone Asus. My Gigabyte EX48 DS4 just can't cut it.
somewhereoveryonda 20th May 2010, 00:27 Quote
I saw a 920 on the cheap the other day but failed to see the 'logic' in buying something out of date! My set up has to last 4 years.. And paying however much for either is still a fortune! You might as well fork out the cash in the long run in my case for the extra performance.

I don't see how people manage to get more from their 920 than 930 considering the multiplier is higher with the same stock QPI... Please explain!
Vigilante 20th May 2010, 04:56 Quote
Quote:
Originally Posted by somewhereoveryonda
I saw a 920 on the cheap the other day but failed to see the 'logic' in buying something out of date! My set up has to last 4 years.. And paying however much for either is still a fortune! You might as well fork out the cash in the long run in my case for the extra performance.

I don't see how people manage to get more from their 920 than 930 considering the multiplier is higher with the same stock QPI... Please explain!

It's very simple - The chips are effectively the same. Some can simply handle higher QPI speeds, and the difference between a base clock of 20 and 21 is not as significant as many seem to think; often, the limit will come from the chip being unable to go any higher due to pure clock speed ceilings, or be limited by their motherboard/ram, all of which would mean a good 920 could outperform a 930 in overclocking. Only if a chip/motherboard is reaching a QPI ceiling will it make any difference, and those situations seem to be rare.
Zurechial 20th May 2010, 06:44 Quote
Is it safe to assume that all 930s are made with D0 stepping?
If so, that's another detail in favour of the 930, since it's still pot luck with some retailers as to which stepping of 920 you get and the differences between C0 and D0 are like night and day when it comes to overclocking capability.
Vigilante 20th May 2010, 07:50 Quote
Quote:
Originally Posted by Zurechial
Is it safe to assume that all 930s are made with D0 stepping?
If so, that's another detail in favour of the 930, since it's still pot luck with some retailers as to which stepping of 920 you get and the differences between C0 and D0 are like night and day when it comes to overclocking capability.

Yes, all 930's are D0 stepping. Some retailers sell 920's specifically with the D0 stepping (Dabs, Aria, and ebuyer do this, to name a few). Intel no longer makes C0 stepping i7's, meaning as long as you buy a new retail processor it *should* be D0, but any retailers selling quite old (or preowned) stock may still have a few.
Bayaz 20th May 2010, 12:14 Quote
If you're a gamer it won't make any difference as the main bottleneck is the GPU. So I'd go for the 920
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