If they don't shrink the battery Ivy Bridge will definitely bring better battery life. How much is the question with the big question mark.
22nm Tri gate promises a lot on
paper
but considering the delays and the low clocks they start with it seems 22nm isn't doing nearly as good as they'd want to a little like TSMC 40nm.
To me current SB is no reason to upgrade Ivy might be. I already got a decent enough 2010 MBP. I would like more GPU speed and a Quad but not with the 2011 MBP.
It is not just how good Ivy "could" be for battery life it is also 28nm GPUs that show up a little before it and USB 3.0. USB 3.0 is something any new Notebook should have because I want a cheap and fast solution for external drives that is where my current MBP really falls short. FW800 is still too slow and way to expensive compared to eSATA or USB 3.0.
Haswell is no bridge it is just Haswell. Don't get to excited about 10 days connected standby. That really doesn't get you much if anything at all on a notebook. This is useful for Tablets and hybrid things or maybe on a small Air. For a normal Notebook even with a 20 times decrease in overall power draw it just makes more sense to download updates when it is on and not waste power the whole time. You'd use smartphones for that stuff.
This feature is probably aimed at powerful Windows 8 tablets or hybrid Ultrabooks.
It doesn't say anything about a reduction in actual Standby power which would be odd anyway because the CPU is completely off and so is any Intel chip in standby. You cannot decrease a power draw of Zero. And it also doesn't say anything about a lower plattform power draw of an actual running system.
But seeing the article down, i don't know if ivy bridge would bring some longer battery life
How do you get from this articel to Ivy Bridge. The only thing that really matters for Ivy Bridge power draw is what the 22nm TriGate process delivers from all its promises.
If that
voltage/frequency curve really is like that it means a huge improvment on battery life under medium load.
If you can run a core at 2Ghz with a V of .7 instead of a former .95 that usually means a lot of saved power on its own. Power draw = frequency * V² * C.
The squared on the V is the reason undervolting used to be such a great way of saving heat and power.
It is just that the supposed meager 10% increase in frequency with still a 45W TDP seems like 22nm isn't doing very well. If this new TriGate transistors are so great why such a meager performance increase without moving the Quads into the 35W TDP class. From 45 to 32nm frequency increased by 25-35% which was quite a lot more. Those 10% we just got from the first Sandy Bridge to the newer Stepping and is common for new steppings but really bad for a new process node. Even if the TDP of 45W is a somewhat fuzzy thing and IB will probably not challange those limits the way SB does currently.
I guess one should buy Ivy Bridge 2-3 steppings after release which means about 3 months later. I may be wrong though. There isn't much really useful information to go on and Intel may just be extra careful although such leaked CPU lineup "rumors" used to always prove true in the past.