Power Consumption
The Core i7 860's power consumption at idle is nice and low, as expected thanks to power gating and low TDP of Lynnfield.
Overclocking
Gary actually handled the overclocking of the 860 before it got into my hands, thankfully this sample seemed to fare better than our first i7 860.
First, our stock voltage overclock with the retail cooler, 3.33GHz:
Four cores under load, turbo enabled, stock voltage, retail cooler
Next, max overclock with turbo enabled again using the retail cooler, 3.53GHz (four cores active):
Max overclock, four cores under load, turbo enabled, retail cooler
And finally the max overclock with no turbo. Once more, using the retail cooler:
Max overclock, single core load, no turbo
The rule of thumb with Lynnfield appears to be 3 - 3.3GHz overclocks at stock voltage, 3.8GHz+ is possible with additional voltage.
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iwodo - Sunday, September 20, 2009 - link
Well, it will defiantly sell well in terms of OEM market. Since they will sell the same amount of PC, and Intel will be pushing Lynfield into their throat anyway.I wont even called that Sales, it is more like tax on those OEM makers.
I think it wont sell well in terms of Retail market.
IntelUser2000 - Saturday, September 19, 2009 - link
Ivy Bridge is a shrink of Sandy Bridge to 22nm. It's Haswell that will have FMA.iwodo - Sunday, September 20, 2009 - link
Yes. It is Ivy Beidge ( the shrink of Sandy Bridge ) for FMA.It was supposed to be for Sandy Bridge, but some changes delay it to Ivy Bridge. So unless they have postponed it AGAIN. it should be out with Ivy Bridge.
bigboxes - Saturday, September 19, 2009 - link
I know the basic archetecture of Lynnfield is superior to Bloomfield, but you are not using 6gb of tri-channel memory for the i920. That is where the i920 really shines. Is there a reason that you are not testing with 6gb of ram with the 920 other than apples to apples testing that needs to be done? Just curious.the zorro - Saturday, September 19, 2009 - link
lynnfield has another gigantic bottleneck which is the dmi bus speed of only 2GBps, phenom 2 hypertransport speed is 41.6 GB/s which means that is 20 times faster than lynnfield when communicating with the chipset,that shows why phenom 2 is better than lynnfield. this is going to be a real problem in the next future.silverblue - Saturday, September 19, 2009 - link
Actually, as HT 3.0 is limited to 16-bit width on AMD desktop boards, it's half that.DigitalFreak - Saturday, September 19, 2009 - link
Next future? As opposed to the current future? I must thank you for all the laughs I get from reading your posts.TA152H - Saturday, September 19, 2009 - link
No offense, but you're clearly an idiot.You realize that in EVERY benchmark, the i7 860 was running at higher clock speeds than the i7 920. Sometimes by a lot, with turbo mode. Also, Anand uses inferior memory for the i7 920, to try to 'prove' the validity of the brain-damaged P55 platform.
Despite his bad attempt, the i7 920 STILL outperformed it. If you clock them at the same rate, with the same uncore, it's only ugly for the Lynnfield.
It's not superior. Well, in performance. It's got nice power characteristics, and it's cheaper to implement. But, your remark is purely idiotic.
Where do you get stuff like this from?
Etern205 - Sunday, September 20, 2009 - link
Lynnfields are categorizes as mainstream, therefore no matter how advanced their architecture is compared to Bloomfield, it won't out perform it. Intel purposely did this and you should know this by now, but I guess you don't care as your too busy sucking your own c0ck."Your the kind of man that can be use as a blueprint to build a idiot".
bigboxes - Sunday, September 20, 2009 - link
Sorry. I didn't mean to say anything that would warrant an "idiot" label. I have just been reading from Anand that the Lynnfield core is better than the Bloomfield. In all his testing he never uses 6gb of ram in his tests. I understand that he wants to measure the cpus on a level playing field, but when you put 6gb of pc1600 ram on an i920 those scores increase considerably. From what I understand that is something that the Lynnfield cannot achieve. Was just wondering if Anand could throw that (i920 w/6gb) into his charts. It seems that almost all Bloomfield owners are gonna be running 6gb (3x 2gb) and not 4gb. The i920 uses that extra bandwidth and it truly performs better when so equipped. I hope that makes more sense.