Nehalem-EP......BLOOMFIELD

[Macadamia]

And they also say that it is stable on aircooling @ 1.7V.

Obviously something is wrong with that report. Not to mention that there is absolutely no way Nehalem will require an insane amount of voltage to hit 4GHz, while the latest Core 2s can hit 4GHz at 1.2-1.3V no problem. The core is pretty much the same, and with an unlocked multiplier the changed infrastructure should not be a bottleneck.

1. Static logic leaks less, thus voltages don't seem that dramatic? This factor is a pretty big departure from Penryn.
2. Bloomfield like Barcelona is a big core. Big dies normally dissipate heat easier (provided distant hotspots and all) compared to Penryn/Wolfdale.
3. It's not as simple as that. Or OBR and co. would be getting 4Ghz OCs too.

[Donnie27]

1. Static logic leaks less, thus voltages don't seem that dramatic? This factor is a pretty big departure from Penryn.
2. Bloomfield like Barcelona is a big core. Big dies normally dissipate heat easier (provided distant hotspots and all) compared to Penryn/Wolfdale.
3. It's not as simple as that. Or OBR and co. would be getting 4Ghz OCs too.

Overclocking has NEVER been exact. Results can differ on processor from the same batch as seen with the Opteron 165's. My bud got 450MHz out of his 3500+, pull his out and stuck my 3500+ in his rig and only got 120MHz that was barely stable 90MHz stable.

You are right about the larger surface area.

[Macadamia]

Overclocking has NEVER been exact. Results can differ on processor from the same batch as seen with the Opteron 165's. My bud got 450MHz out of his 3500+, pull his out and stuck my 3500+ in his rig and only got 120MHz that was barely stable 90MHz stable.

You are right about the larger surface area.

I meant that the core became more complex, used more power and likely went in a different direction than clock scalability (at least for 45nm) compared to the Core 2 Duo.

Was comparing relative OCs, nevermind if they were consistent averages or not. I mean, E0s hit 4G on stock. So that's a pretty big shocking change they applied right there.

[Donnie27]

I meant that the core became more complex, used more power and likely went in a different direction than clock scalability (at least for 45nm) compared to the Core 2 Duo.

Was comparing relative OCs, nevermind if they were consistent averages or not. I mean, E0s hit 4G on stock. So that's a pretty big shocking change they applied right there.

QFT! I'm shocked as well. But there's no rush for me to buy anything yet. Even my C0 will do 4GHz with almost no more voltaged added and on a very cheap $89 motherboard, hehehehe! I'm running at stock because I like it quieter better. Mine is almost dead silent with no silent tricks at all.