im still waiting for benches from a not beta platform. :yepp:
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im still waiting for benches from a not beta platform. :yepp:
Yeah, my CPU has retail revision ... and mobo is last Rev. before Retail ... my platform become almost Retail ...
Here is an interresting topic ...
Ronak and I argued for 4 years on this topics, we did extensive study on this, Ronak architect team vs the Performance team. I was very afraid that it will cause too much latency increase. After 2 years of arguying, I was forced to admit that I was wrong, and Ronak was right. The increase of latency in smaller than anything you can measure on real application. The multi-layer prefetcher does its job, as it did on Core 2 via the FSB.
The explanation is so simple that it is scary ... :rofl: The memory prefetcher from L2 to L3 is working almost 100% because the pattern from L2 to L3 is filtered by the L2, I mean, the L2 remove most of the unpredictable pattern.
Ronak was and is right, the L2 cache of Nehalem does not cause any issue.
I actually like when the architects are right, and I am wrong, it mean that we will have a kick a// product. :yepp:
And remember Andy's moto: "Only paranoid survive", it is my job to apply this to Intel's product :up:
Interesting post :),thanks.
Do you have any comments on OBR's post here,especially on power consumption in full load(supposedly a lot higher than on 45nm C2Q):
Quote:
Originally Posted by OBR
I'm not saying the L3 central isn't worthwhile and certainly to have a central pool and still have the individual cores fed properly you had to replicate to the L2. But seems to me there is no room left in the L2 to conduct a single core's chores (to keep the example simplified). You could have doubled or quadrupled the L2 with not a large hit on cost or really complexity since you've already designed the basic working format. Even then you'd still have room leftover in the L3 pool and each core would work faster, utilizing L2, and still have an excess of L3 to tap for the next tasks to assign to a core.
How I would have envisioned the layout:
1mb L2/Core
8mb of L3 shared
The cost reduction of the smaller L2 than in prior series would have covered the addition of the L3 and probably a mem controller of significant capability in the bargain.
Now I say this and I have to believe you gave this a shot. I honestly think you didn't draw up the current ratios without experimenting. So yes I'll wait for the tests, but it "feels" to me like Intel took the L2 down more for cost to benefit ratio than anything purely performance oriented. Meaning there was an advantage to the additional L2 (as surely there would be) but it was judged that the additional benefit didn't warrant the cost involved. I'm not baiting you to argue this, just explaing a "feeling" on this topic and any commentary you may feel is worthy is fine or none is fine too.
Given where the 9770 landed in cost, perhaps bringing things under control wasn't all bad. And perhaps what was sacrificed won't be all that noticeable. So I'll wait and see. But I do feel "some" additional L2 would have yielded a slightly better chip.
Dr.Who?:
What would be your guess as to the difference in performance of a 8 core Harpertown machine at 3200 and a 8 core gainstown at 3200 doing work that can take advantage of the HP in the new Nehalem based systems?
I'm talking about Distributed Computing work as we do for WCG where each core is assigned a work unit.
That's really what this comes down to me, how much more work can be done in the same timeframe..
Thank you.
That's honest and yes, I do understand..
My guess is a 30% increase based on what I've seen and thats enough to push me to do one and if they will do 4000 like these Harpertowns then they will be winners.
My other concern is heat.
As to whether with the onchip IMC they will produce a higher heat dump than the harpertowns.
Currently I am able to run a pair of harpertowns at 100% load at 3758 on air at 47C in a 72F room..
Can you comment on the heat factor or is that still under NDA also?
Thank you..
Looks around, sees Dr.Who? is gone......
Damn, ran the poor guy right off the forum again!:rofl:
[QUOTE=OBR;3264423]Yeah, my CPU has retail revision ... and mobo is last Rev. before Retail ... my platform become almost Retail ...[/QUOT
You might have an earlier rev. The process (45nm HK) has already matured on penryn and now is ready for nehalem (BTW that is the beauty of tic toc). The chip that you have may still have some bugs in the arch design level for power mgmt that still hadn't been worked out yet. As long as the problem exist in the design level and not the process level then a single stepping can fix the issue.
BTW, I can tell you that it's fixed, but I can't provide sources.
guys are we even gonna see Core i7 in September?
So what's the latest on when we can buy Core i7 CPU's (say the $300ish model)? I've been looking around but most of the news I'm finding is older. Is it possible we'd see it in Oct/Nov. for purchase?
so if ES Rev. is already at C0 & C1
what would be the revision of the retail products?
Fair enough - and I'm sure an honest answer. You've said several times in several ways that much of any slowness of comparing Yorktown to Nehalem and finding Nehalem slower is more due to early silicon/boards vs L2 issues. So I'll take that at face value.Quote:
you will see very little gain from increasing the size of the L2, its very short latency is a plus that you do not want lose.
Painful to realize that we've still got a couple more months till this chip is out :) But that is the zen of XS I think :)
More benchies here
Hardspell is showing a Bloomfield Core i7 2.93GHz on air and overclocked to more than 4GHz and ran SuperPI 1M in slightly under 10 seconds.
looks like the multi is unlocked on that 2.93?
Now with higer Ref. Clock (~165Mhz) and memory clock
http://www.abload.de/img/preview4qa.jpgQuote:
What I can tell you:-
Stock Intel Cooler
2 x ATI HD 4870 X2 (Crossfire) (800MHz Core / 3800MHz RAM)
Seagate 160GB (Slow pants HDD but fine for benching)
Cellshock Blue Edition 1866MHz (8-8-8-16) (Clocked at 2000MHz 9-8-8-16) - Also on Weekend special at OcUK!!
Antec Signature 850W PSU
http://www.abload.de/img/vantage1fe4.jpg
http://forums.overclockers.co.uk/sho...php?t=17916507
damn why does he uses everest trail... i would like to see 2nd and 3rd levle cache latencies. :(
memory latencies on the other hand seem quite nice with CL9.
Release seems scheduled for November.
http://www.nordichardware.com/news,8101.html
How long after the EE are the regular chips(2.66 & 2.93 variants) regularly released?
Guys, one of the guys at VR-Zone who posted on the screen of the SuperPi topic says Anand and XS are unreliable sites :ROTF:
Anyway, those screens are damn impressive if true :D
1M under 6 anyone? :D
hmm another november release means its available in europa somewhere bewteen christmas and new year. :D (same with XE yorkfield)
Both of those will be multi-locked? So I imagine the 2.93 will play nicer due to the higher multi.
I really take exception to people who accuse a) Anandtech of malfarious benchmarking... I can reproduce most of his benches where I have like HW and SW readily and easily. b) Calling XS unreliable, most all the info I see here generated by people here who provide HW, screenshots, and such is just as reproducible and trustworthy from what I can gather (notable exceptions are the obvious spam from hit and runners)...
Either that or Turbo in effect.
Any word on a release date for the Gainestown version? Or was that pushed back to later next year?
you will need this to go with your Nehalem : http://www.extremetech.com/article2/...2329593,00.asp
Nhm Extreme Bandwidth needs it!
Francois ya it really rocks
its so awesome
November is still far off I really want to see what Nehalem can do with its full potential at least reviewers and testers are getting a lot of testing and benching time, they can squeeze every last inch of potential out of it.
:yepp:
I putted 4 of those little babies in RAID 0 ... 1 GB/s :yepp::yepp::yepp::yepp::yepp: with a seek time out of space
nice article here: http://www.anandtech.com/cpuchipsets...oc.aspx?i=3403
Now the question is, will intel SSD be faster than Micron new ones?
Bummer Gibbo doesnt come around anymore, I have some notes he could use.
Looks like SS provided by ocuk, the QPI is 7.2GHz ... :shrug:
From my Gainestown platform, the BIOS seems can set the multiplier, but now I'm with 2.93GHz QPI 5.86GHz, doesn't effect the frequency, Haven't test it with higher grade Nehalem yet ...
hmm, what about the link between the vcore & vdimm? thought that was the problem to get high ram speed.
lol i dont know where the people get the impression that vdimm and v(i)mc(h) has to coubled?
Now you can assign different voltages fo VDIMM and VMCH and i am sure same will be possible for nehalem.
it is strange to do so, not to many ddr3 ram that hit 2000 @ 1.5-1.65v so i hope thats not why intel do not support more than 800 \ 1066 mhz ddr3 speed. on board memcontroller linked to vcore is bad if it was so.
Damn, and here I was thinking a couple of 15K SAS drives would get me by.
Trying to keep up with you guys is like trying to win Formula one on a $5000.00 budget!:rofl:
Francois: Couple questions for you.
1) When is the official day the NDA is lifted?
2) If you can bring "your"system here we can set up a special section where no one will see it..
I promise, it will only be seen by a chosen few!:rofl:
Damn, I got my 6 at the local flea market..$10.00 each!:p:
since we are in the Jokes, we have some interesting french fries in France:
http://lafritedunord.mccain.fr/images/mc_paquet.jpg
try his campain support web site in France : http://www.mccain.fr :rofl::rofl::rofl::rofl::rofl::rofl::rofl:
He keeps telling us, it is Freedom Fries!!!!! :ROTF::ROTF:
deleted repost
well.... not so closed after all? http://www.nordichardware.com/news,8118.html
I DON'T want 2v+ memory, please...
:(
Haha, so Fudo wasn't full of sh1t as most people said ;)
Fudo is a nice guy, don t be so mean.
Francois
Ok that was damn funny :)Quote:
the NDA lift date is under NDA
http://www.hardware.fr/articles/733-...l-nehalem.html
This article contains a pic of the "stock cooler", don't know if it's final though.. probably not...
http://www.hardware.fr/articles/733-...l-nehalem.html
Link to the begining of the article, pretty interesting if you understand french :P
Nice numbers :)
I wish I could make out the CPU type, multiplier and memory type. :(
I hate secrets.
Why has Nehalem been shot down as a gaming chip because the cache isn't fast enough? L1+L2+L3 latency there looks approx the same as L1+L2 latency for C2D...
Wow, that 3rd level cache is damn fast, nearly as fast as the 2nd level cache.
So much for the rumor "3rd level cache on nehalem is solw" :p:
so who's getting a bloomfield?
teehee.
me for sure, but if the launch is the same as with yorkfield, i wont be available before dez here in europa. :p:
Blauhung said they're up to D stepping:
http://www.xtremesystems.org/Forums/...9&postcount=19
Maybe D is the launch step?
Nehalem White Box
http://farm4.static.flickr.com/3178/...612a7319_o.jpg
http://farm4.static.flickr.com/3175/...efcfa509_o.jpg
1366-775-478
Mobile01
I tried to restore this Core i7 965 Extreme Edition CPU-Z screenshot. :D
http://i279.photobucket.com/albums/k...ition_copy.jpg