Originally Posted by NvidiaStorm
I can't see Ivy over clocking that well. Sandy only goes up to 4.8 on air, maybe a little higher for some of the lucky few. I see no reason why Ivy wouldn't be able hit 5.0 - 5.2 GHz though. If it can hit the same clocks as my 2500k but using 15 - 20 watts less power no problem, then I know what my next upgrade will be after my RAM
I see the average OC for Ivy being around 4.8 minimum, 5 normally, 5.2 for good chips and 5.4 for great chips/watercooling a good chip.
But the SB architecture hits a limit around 5.7Ghz, it's not the multi (Or you'd see a lot more SBs hit 5..8-5.9 with minor bclk tweaking) that really limits it IMO.
Originally Posted by pursuinginsanity
When we went from Conroe to Wolfdale we gained ~3% IPC and roughly a 7-800mhz higher OC (of course that varied from chip to chip, up and down the range).
I don't think it's unreasonable to expect ~5.2-5.5. Sort of in the middle of where you guys stand.
700-800Mhz OC? No way man, heaps of Conroes got to 3.6-3.8 with a few (rare) ones hitting 4, Wolfdale was 4Ghz to 4.4Ghz for a great chip, so only 800Mhz if you compare some of the the worst Conroes to the best Wolfdales.
And its different, Conroe was limited by heat nine times out of ten, Wolfdale helped that with the 45nm node, SB hasn't got a heat limit, its got an architectural limit like the Athlon64. (Compare a 90nm A64 to a 65nm A64, the 65nm runs cooler but doesn't really OC any higher because they're both at the limit)
I see 5.2Ghz being the max average OC for IB, but with ~10% faster clock for clock speeds.
Originally Posted by NateN34
I'm sorry, I know this is overclock.net, but why do you really need a higher overclock? I mean even at stock it destroys everything AMD has.
I would rather have them make a good chip that overclocks lower rather than AMD and make a cruddy chip that can overclock insanely hieght.
SB/IB does both due to the 32nm node putting out such little heat, Intel have done really well with it.
And in terms of IPC versus clock speed, I'm guessing Intel went a little towards clock speed for SB but kept IPC decent, so they could have low wattage but still fast chips.