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is an I7 930 an overclocked I7 920? Thats what people say on other forums I've read. - Page 2

post #11 of 57
Quote:
Originally Posted by 9KRacing View Post
"Turbo Boost" is not an actual multiplier. It will only clock ONE of your cores to that speed. Generally overclockers turn OFF turbo boost and will instead clock all 4 cores to that speed instead of just one.

So again.

930 = 21x Multi

920 = 20x Multi


/thread

Intel's Turbo Boost for Nehalem white paper (Section 1.2, page 5) states:

Quote:
For example, one particular processor may allow up to two frequency steps (266.66 MHz) when just one core is active and one frequency step (133.33 MHz) when two or more cores are active.
Also, most motherboards support enabling of Turbo Boost 24/7 for a permanent +1 multiplier across all cores so it should be:

930 = 22x Multi

920 = 21x Multi
Edited by dkim1359 - 6/9/10 at 9:30am
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post #12 of 57
Quote:
Originally Posted by dkim1359 View Post
Also, most motherboards supports enabling of Turbo Boost 24/7 for a permanent +1 multiplier across all cores.
I'm not trying to start a war, but this wrong from everything I've read.

Turbo Boost will NOT permanently boost your MHZ on more than one core.

A PC with TB on that hits 4.2ghz will not be as fast as a PC that is actually clocked to 4.2ghz.
post #13 of 57
Quote:
Originally Posted by dkim1359 View Post
Intel's Turbo Boost for Nehalem white paper (Section 1.2, page 5) states:

Also, most motherboards support enabling of Turbo Boost 24/7 for a permanent +1 multiplier across all cores so it should be:

930 = 22x Multi

920 = 21x Multi
My i7/920 is at a 21x multi as well. Was going to jump on and say the same thing, I've been a step behind lately. Glad it got sorted though.

Essentially though, this is the only difference. The issue is, most boards have an easier time with odd number multis for stability reasons, so the 930's bump to a 22x multi isn't really super useful. It's also a much newer chip (in comparsion). Thus, if you have the option and it's cheaper, my suggestion would be the 920. (hence 21x 201 bclk = the 4221 hZ (CPUZ puts mine at 201.6)
Edited by MistaBernie - 6/9/10 at 9:39am
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post #14 of 57
Yes now that I have woken up, that's the reason people don't generally jump to a 930 because of the 22x multi. They end up running it on a 21x anyway.
    
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post #15 of 57
Thread Starter 
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory Model F3-12800CL8TU-6GBPI = 178

Intel Core i7-930 Bloomfield 2.8GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Desktop Processor = 290

EVGA 141-BL-E757-TR LGA 1366 Intel X58 ATX X58 SLI LE Intel Motherboard = 200

Antec Nine Hundred Two Black Steel ATX Mid Tower Computer Case = 130

Tuniq Tower 120 Extreme Universal CPU Cooler 120mm Magnetic Fluid Dynamic LED Fan and Fan Controller/Heatsink Rev.1 with TX-3 & 1156 Brackets = 66


total: 864



I copied off some of your guys rigs and came up with this. Tell me if you think this is right and if thats the best performance I can get for price-wise. Feel free to help me out and change things around. Also I'm hoping my 750watts powersupply is good enough for now. Or maybe I have to buy a new one of those aswell?
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post #16 of 57
I'm actually running my 930 with the 19x multiplier as I found it to be the most stable. Honestly, if your going to overclock anyway, I would just get whatever i7 is cheaper, the 920 or 930. It really doesn't matter as even people who have the 930 won't use anything above the 21x multiplier anyway.
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post #17 of 57
You guys keep talking about TURBO BOOST and NOT actual multipliers.

Jesus it's like I'm talking to a wall.

For the last time.

The 930 has a 21x multiplier and then you can turn on TURBO BOOST for a 22x multi.... on one thread. (Prove me wrong if it really is all 4 cores) It's pointless, and no one that is overclocking should do it.

If you buy a 920 you will want to use the 19x multi.... unless you're ok with THINKING you are at 4ghz but really being at 3.8 on 3 cores.

Go into your BIOS. Turn off turbo boost. Now, what's your multiplier?
post #18 of 57
Quote:
Originally Posted by Josephfelice View Post
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory Model F3-12800CL8TU-6GBPI = 178

Intel Core i7-930 Bloomfield 2.8GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Desktop Processor = 290

EVGA 141-BL-E757-TR LGA 1366 Intel X58 ATX X58 SLI LE Intel Motherboard = 200

Antec Nine Hundred Two Black Steel ATX Mid Tower Computer Case = 130

Tuniq Tower 120 Extreme Universal CPU Cooler 120mm Magnetic Fluid Dynamic LED Fan and Fan Controller/Heatsink Rev.1 with TX-3 & 1156 Brackets = 66


total: 864



I copied off some of your guys rigs and came up with this. Tell me if you think this is right and if thats the best performance I can get for price-wise. Feel free to help me out and change things around. Also I'm hoping my 750watts powersupply is good enough for now. Or maybe I have to buy a new one of those aswell?

Power supply is fine. The 930 can be bought for 50 bucks cheaper and 90 bucks cheaper if you live near a microcenter. I bought my antec 900 for 49.99 from newegg. 130 seems way high for a 902.
    
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post #19 of 57
Quote:
Originally Posted by Josephfelice View Post
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory Model F3-12800CL8TU-6GBPI = 178

Intel Core i7-930 Bloomfield 2.8GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Desktop Processor = 290

EVGA 141-BL-E757-TR LGA 1366 Intel X58 ATX X58 SLI LE Intel Motherboard = 200

Antec Nine Hundred Two Black Steel ATX Mid Tower Computer Case = 130

Tuniq Tower 120 Extreme Universal CPU Cooler 120mm Magnetic Fluid Dynamic LED Fan and Fan Controller/Heatsink Rev.1 with TX-3 & 1156 Brackets = 66


total: 864

I copied off some of your guys rigs and came up with this. Tell me if you think this is right and if thats the best performance I can get for price-wise. Feel free to help me out and change things around. Also I'm hoping my 750watts powersupply is good enough for now. Or maybe I have to buy a new one of those aswell?
Get a 920 if you can (especially if you can get it from Microcenter @ ~$179, but getting harder to find) -- the 930 from Microcenter is $199 as well, so try to do that.

The PSU will depend on what you plan on doing for a graphics solution, but a decent 750 will power a single high end graphics card with what you have listed about without much issue (in single mode, not SLI/Xfire, though a few might squeeze in under 750).

Edit: edged out by Supercynic.. :/
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post #20 of 57
I would just get the 920. It's cheaper (check out Microcenter $179 i think), it allows your to run on the 21x multiplier, and from what I've seen, to reach the same OC's the 920's seem to require less voltage than the 930's. Having a 22x multiplier on the 930 (or any even multiplier for that matter) does not help with stabilizing the OC.
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