2920xm ES performance, date stepping week

ES chips are free and for testing purposes now from what i understand you to get the chip with the latest date close to official release, since performance probably wont be to much off from the retail. what i'm wondering is are there any known 2920xm chip's, stepping number or etc that compare to the retail/oem 2920xm chips. Es is obviously low cost, and i'd like to acquire a 2920xm es chip, if anybody got any benchmarks of different 2920xm es chips and can share it would be of some interest to see how much of a power gain or loss there is.

i seen some guy with a es chip and it proved to be not very good, so look forward to as much input from users who have tested or can submit data.

 

Laptop monkey has had 4 or 5 of them in stock. In fact they posted here in this section.

 

he test each one of them?

 

I have a ES 2920 for over a month and i can't be happier 4.2GHZ 24/7 overclock no problems at all


edit : bought from laptopmonkey

 

"ES chips are free"????

 

free to computer manufacturers

 

i read some people had 2920xm and it was performing pretty bad, off course batch date week all matter. where you buy your's from gonz

edit: could you tell me what is the exact stepping date etc of your cpu. also have you tested it at stock with sisoft siandra etc, to compare performance.

 

laptop monkey 2.4ghz early step $280 free shipping

stepping 5 revision D0

 

i meant the markings on the core itself, could you take a test with out overclocked? see what performance you get, to compare to a retail 2920xm

 

performance will be the same at stock the ES procs supposed to have a lot of bugs bugs i didn't experience yet or they are not noticeable that's why they are for testing only and people don't suppose to sell them but they do and for $280 bucks you can't go wrong if you are really worried just get an OEM for $1100 and you will be happy

 

check this out Mumak the creator of HWinfo 32 post this on another forum I hope he don't mind

"HWiNFO marks it correctly since it's neither a 2820QM nor a 2920XM. Uncle described almost perfectly the difference between ES/Production Units.
And since uncle doesn't have so much insight into internal Intel things and processes (which I have), I can give you a bit more info...
There are usually stages during the development process. First, there are very limited internal samples for low-level debugging/development (I don't have much info about such units).
Then the ES0 stage comes which is still a very limited amount and available only to few selected priority customers. These units usually are able to fully boot a system, but have many bugs.
Later, ES1 stage comes - for testing of more features (but still many bugs inside and certain features not enabled). For example, the Ivy Bridge ES1 samples are already out for some time (just to give you an estimation how long the process takes and in what advance they are produced) ;-)
Later ES2 units are released usually with most features enabled, but often still do not represent final product. Sometimes are pretty close to final power targets.
The final stage of samples is called Qualification Samples (QS) - these usually represent the final parts with almost all features working and tested.
Usually such parts are promoted into Production Units without any modification and sometimes require only very minor (no functional) updates..

That CPU is ES2 and (if I count correctly) for this model there are about 14 bugs that have been fixed between ES2 and QS (so that CPU has ~14 bugs that Intel considered serious enough to have them fixed in the final silicon)."

 

I wonder if unclewebb will mind, or if he posted it first on this forum.

This would be a lot more interesting to other people if it were related to some tangible things about the chips, E. G. what to look for when differentiating the stages, what the actual errors are/were with various generations and how unclewebb or mumak knew about these particular errors.
Just saying. Cause I find it interesting, and it may help me speculate and figure some things out but I don't know if this info will help most people.

 

what types of errors occur, though ? i've never heard of a cpu suffering from ERRORS, what are the symptoms as far as a i know a cpu either A works B does not, it's that simple. es samples i believe somebody mentioned he had lower performance(that could possibly be the symptom) but when you say errors i like to know what you mean and how it effects.

 

Errata can be very specific and range in severity.

Usually it's the showstoppers (causing a BSOD or corruption) even if they are rare and the errors that happen most often which are targeted first.

Then again production CPUs still have errata.

 

any known errata in es sandy bridge samples ever ? keyword KNOWN to public.

 

could be somewhat confidential to intel...

 

i just ordered i7 2820 ES and seller (ebay) said its D2 stepping so Q1NC and he said its same as oem cpu so .. will see i will test it after.

 

Holy... that's ridiculous.

 

94 Watt TDP, that's over double mine lol.

 

Hi Guys
I have replaced 2630QM with 2820QM

 

I plan to buy either a 2920xm ES or a 2820qm QS (D2)

I have a X6813/MSI16F2 with a 150W adapter, chipset HM67 and i5-2410m currently.
Do you think I could accomodate easily a 2920xm ES at stock clock for 1st ? Will turbo boost be working ?
How much o/c level should I be able to achieve, I guess not as much as JohnnyFlash did as AW has great cooling system.

Maybe the safest solution is to go for a 2820qm after all..
What do you guys think ?

Thanks

Erazer X6813 - HM67 - i5-2410m - GTX460m 830/1660

 

I have had no problem with mine, it has been great!

 

Is it worth getting an XM processor with an HM65 chipset? Since you can't overclock it and all....?

 

Do you have a 150W adapter? Are you using it at stock clocks ? (2.5-3.2) or have you managed to overclocked it with throttlestop ?

Ty

 

I have a MSI MS-16F2 as well with a 2920XM ES. It will stay on turbo for all four cores at 3.1 ghz. The only time it doesn't is if you're running something like wprime with 8 threads, or SC2. I found SC2 to be beyond CPU demanding and the CPU had to lower its turbo to x28 or 2.8ghz on 4 cores, because the TDP would exceed 55W.

You can't OC the CPU because the BIOS is locked (more specifically BCLK is locked, you can't change any number in throttlestop, only the M18x can or a Sager with modded BIOS). So the 31x turbo is the fastest it'll go on 4 cores.

Edit: I'm using the stock Delta Elect. 150W AC adapter.

 

Wow thank you very much for your answer ! This is exactly what I was expecting !

Right so you have a 2920xm ES running at 3,1ghz on 4 cores which is equal to a 2820qm actually, is that correct ?
So for an owner of MSI 16F2, there is no need to go for a 2920xm ES as it wont be more powerful than a 2820qm QS?

Thanks anyway !

Erazer X6813 - HM67 - i5-2410m - GTX460m 830/1660

 

I have a 180w power supply, I run stock speeds. I got the ES because it was cheaper then a 2820qm and got really good reviews on research.