yea 3770k hit 95c on a Corsair A70 air cooler during Legit reviews motherboard tests, so even a cheap Corsair A70 keeps the chip within thermal limits at 4.8GHz just need to hope the chip clocks good lol.

Nate saw 90c with the Intel water cooler
still 10-15c below max temp so its not bad its the same situation as Sandybridge you just need a good chip.

again as i mentioned in a different thread the IHS is shapped differently with IVB as well, so some coolers arent making good contact, aka

Sandybridge )
Ivybridge (

the IHS reversed direction a bit, most coolers = D to better fit older designs, with the switch to IVB coolers need to be redesigned a bit for better contact.

crazyeyesreaperyea 3770k hit 95c on a Corsair A70 air cooler during Legit reviews motherboard tests, so even a cheap Corsair A70 keeps the chip within thermal limits at 4.8GHz just need to hope the chip clocks good lol.

Nate saw 90c with the Intel water cooler
still 10-15c below max temp so its not bad its the same situation as Sandybridge you just need a good chip.

again as i mentioned in a different thread the IHS is shapped differently with IVB as well, so some coolers arent making good contact, aka

Sandybridge )
Ivybridge (

the IHS reversed direction a bit, most coolers = D to better fit older designs, with the switch to IVB coolers need to be redesigned a bit for better contact.

I run 4.75 on air with my 3820, give me water cooler and I would be at 5ghz and with better temps. :confused:
I also don't believe that, the heat sink should rest on the CPU and held in place by the bracket. The bracket is just for placement, not contact. It's the same socket too so much much can the surface area really chance?

yea and at 4.8 that IVB on a $45 Corsair Air cooler beats the 3820 lol, its a moot point,

Chips get hot ? yes
are they safe up to 105c? yes
are they faster clock for clock? yes
from what ppl are seeing it takes 300MHz give or take for Sandy to match Ivy on some benchmarks the spread is 500MHz

motherboards for IVY are cheaper, so it all depends on usage senario

but if the chip isnt dying who gives a shit lol, looks like 3770k clocks decently, not all will but at least review samples do,

that said ill be moving from a 2500k that can only do 4.4 to a 3770k which even if i max at 4.3 will still be faster so if your on a 2500k or lesser chip Ivy makes sense, 2600k or more if it clocks good it probably isnt worth it, but thats usually how it goes.

the IHS on the cpu itself is shaped differently with IVB

aka concave vs convex

essentially

Sandy Bridge is concave
Ivy Bridge is convex

current cpu coolers and water blocks tend to be convex so they fit snug with the concave IHS on the CPU,

essentially they look like this ))
right now the cooler contact with IVY = )(
aka not as much surface contact
is it a big issue no but something as simple as that can have an impact of around 5'c or more at these high temps

so with improved heatsink base designs say a revised A70 we know it hit 95c during testing at 4.8 a revised base could see temps drop to 90c instead it depends on the CPU as well but if using the same CPU something of that nature can and should happen,

I've lapped 2-3 Sandys and they are concave.

crazyeyesreaperthat said ill be moving from a 2500k that can only do 4.4 to a 3770k which even if i max at 4.3 will still be faster so if your on a 2500k or lesser chip Ivy makes sense, 2600k or more if it clocks good it probably isnt worth it, but thats usually how it goes.

That's an opinion i think, i'm on a 2500k, and i think moving to a 3770k is a waste of my money (for what i do, i won't see any even remote difference).
I'll wait for a more decent perf increase at the same price. (next architecture)