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Will My i7 860 With HT Off Bottleneck 2 GTX 580 In Sli - Page 6

post #51 of 52
Quote:
Originally Posted by AWESOME_3_SOME View Post
i won't able to find out, cause i know i need more than 1.35 voltage for 4.2ghz with HT on. i try the 1.35 voltage with HT on my temps went to 80 after 45 seconds of prime95, the silver arrow can't keep my i7 860 cool with HT on at 1.35 voltage.

With a lynnfield, anything over 4ghz you really need water. I ended up getting a rasa kit for my old 860. Mine ran hotter than most too, had a vid of 1.175. Generally, and especially with lynnfield and bloomfield, the lower the chips vid, the hotter it runs.

I think the reason for this is the "slice" of silicon in the lower vid chips is just a tiny bit smaller than higher vid chips. Similar to a drop in nm. like 45 nm to 32 nm = less power consumption and less heat. I think the lower vid chips have a small small, very small difference in "slice". Or in more lamens terms, a better quality silicon, or more precise cut.

This is one of many factors that gives meaning to the phrase "all chips are different".
Edited by AliceInChains - 7/28/11 at 8:52pm
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post #52 of 52
The answer to this question is: it depends on what test you run (i.e. what game/bench) and what settings you run that test at.

It also depends on your personal definition of a bottleneck. If you drop from 105fps to 100fps because of your proc, is that a bottleneck to you? Technically, it definitely IS one ... but does it matter to YOU?

Bottom-line, in some testing scenarios, yes, you'll have a bottleneck ... but it will be a bottleneck like what I just described a large majority of the time, if you do have one at all.

You'll never have one that's significant to your gameplay experience, put it that way.
    
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xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
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hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
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