Intel i7-2600k

[Zink]

The 2600k is the only good Sandy Bridge folding CPU. Now that the NDA has lifted who is thinking of getting one? If you already have one what TPF's are you getting and what clocks seem folding stable?

The mobile quads have amazing power saving for web browsing etc. but they can also run at very high clocks. I think it will be nice if the mobile i7 quads can fold bigadv, with proper cooling they can maintain 3.0-3.2Ghz on all four cores which with the IPC improvements should match an i7 920 at 3.5Ghz or more.

The trick with overclocking the 2600k should be finding a safe 24/7 voltage. It looks like with the new BIOS update many chips should be able to hit 5ghz+ even on air cooling but we don't know yet if 1.5V is safe.

At 4.9Ghz with 1600mhz ram I found a bench showing a 2600k got a TPF of 24:52 on a p6900 which is 50k ppd. Not bad because at these speeds they only draw as much power as a stock clocked i7 950, around 200W.

[_dangtx_]

because of bigadv, but dont diss the non ht models either :)

like i said, we might go back to one strong cpu per box times a few boxes vs one uber box with a headache porne sr2 in it :)

[chrisk]

If you have a current i7 rig, I would wait for a folding upgrade until some consistent folding and OC info is gathered. There is speculation that the new AVX instructions can help folding performance, but that will need to be done by the Gromacs programmers. We will know by the time s2011 arrives I imagine.

If you are building a new folding rig, then the 2600K is a fine choice. I have seen threads (ahem...Zink I believe you have seen the Hardocp thread too ;p) that report ~50k, but I need to see screenshots of WUs and clockspeeds before I believe it.

[Zink]

I agree, for long term upgrades wait for the high end. It will probably be about 8 months before 2011 comes out though so the 2600k isn't a bad option for folding and playing around with.

[Charloz24]

When these will be available?

[_dangtx_]

slides showed jan 9th, i believe.


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you asked, i browsed :D


Intel Unveils Sandy Bridge: Core i7 2600K, i5 2500K, i5 2400, i3 2100 CPUs - Sandy Bridge Overclocking: How To - Legit Reviews

Next up, if you're going over 4.3GHz you'll want to change the processor Core voltage. 1.35v should be plenty for 4.5GHz. At 4.7GHz you'll likely want around 1.4v. Over 4.7 it will require quite a bit of voltage; we reached 4.9GHz at 1.55v. We are told that 1.6-1.7v is ok if you've got the cooling to handle it but it is strongly recommended not to exceed 1.8v. 1.6v is going to push it for 24/7 load operation on air cooling or something like the H50.

[Sagath]

I'm amazed by the amount of people 'wowzoring' over overclocking sandybridge. Its a 3.4/3.8ghz processor that you are 'eeking' out 700mhz.

How is this a 'wow' factor?

2.66 to 4.2 is nearly a 1.6ghz, or better put a 58% overclock. The Sandybridge on the other hand (since you're disabling turbo to OC it, the max turbo value is in reality the value of the starting frequency) is getting a measly 19%. Oooh, ahhh. Whoopie. Even discounting the max turbo starting point, you're talking 32%.

Just sounds to me like intel is finally getting smart and not leaving a lot of overhead when they bin chips. This isnt a wow factor, this is intel slowly eliminating the enthusiast sector and overclocking at all. Next up? Even less overhead unless you're on exotic cooling, and then? Yup, you guessed it, no unlocked multipliers.

[_dangtx_]

didnt sb run poor/not run on sub zero? mustve read wrong. but if i didnt, ouch? at least for the big hitters

[Inate8]

Originally Posted by Sagath

I'm amazed by the amount of people 'wowzoring' over overclocking sandybridge. Its a 3.4/3.8ghz processor that you are 'eeking' out 700mhz.

How is this a 'wow' factor?

2.66 to 4.2 is nearly a 1.6ghz, or better put a 58% overclock. The Sandybridge on the other hand (since you're disabling turbo to OC it, the max turbo value is in reality the value of the starting frequency) is getting a measly 19%. Oooh, ahhh. Whoopie. Even discounting the max turbo starting point, you're talking 32%.

Just sounds to me like intel is finally getting smart and not leaving a lot of overhead when they bin chips. This isnt a wow factor, this is intel slowly eliminating the enthusiast sector and overclocking at all. Next up? Even less overhead unless you're on exotic cooling, and then? Yup, you guessed it, no unlocked multipliers.

Actually I think most are "wozoring" over the TDP/price of the chip that performs at stock just as good as a 980x.

The problem we are seeing is apples fault. With apples success and their intention to completely control the "user experience" we are slowly seeing less and less open-endedness with the intention of having a better "out of box" experience. This will continue this way until computers are embedded in most day to day items. It just makes things easier to work with, having less variables. Sure we have fun with our tweaking and such, but in the end, were not contributing to anything or really accomplishing anything fancy. Intel knows what their chips will do already.

[matsta31]

Yeah or the enthusiast sector should not buy this mid/lower-end socket. I Hope LGA2011 will be ok. I would not be to mad at intel if they reduced this socket OC capacity and let LGA2011 be like what we currently have on the X58 platform. Anyway, why buy all theses crazy mobos if you are not playing with the BLCK ? They would kill the Mobo market and that would be sad.