The Ivy Bridge Preview: Core i7 3770K Tested
by Anand Lal Shimpi on March 6, 2012 8:16 PM EST- Posted in
- CPUs
- Intel
- Core i7
- Ivy Bridge
Power Consumption
Intel isn't really exploiting 22nm for significantly higher default or max turbo frequencies. While it does seem like you'll hit turbo frequencies more often with Ivy, most of what 22nm offers will be realized as power savings.
At idle, all cores are already power gated so there's not much more Ivy Bridge can offer. We see savings of a couple of watts at most over the 2600K but otherwise it's nothing significant. In notebooks I'd expect to see implementations of DDR3L help keep power consumption down, but at idle there's really not much that can be done.
Under load however the power savings are significant. The Core i7 3770K pulls 27 fewer watts while delivering better performance than the 2600K. Again, translating this to what you can expect in notebooks I'd say that peak battery life likely won't be affected, but battery life under load will be better with Ivy.
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sabot00 - Tuesday, March 6, 2012 - link
How long will Intel keep its HD Graphics increases?MonkeyPaw - Tuesday, March 6, 2012 - link
I don't understand the logic of selling a high end CPU with the best IGP. Seems like anyone running an it isn't going to stick with the IGP for games, and if they aren't gaming, then what good is that high-end GPU? Maybe the entire "Core i" line should use the HD 4000.Flunk - Tuesday, March 6, 2012 - link
Because the low end chips are just die-harvested high end chips it makes sense. No reason to disable it so they leave it on.And some people do actually use high end processors with IGPs. It's fairly easy to get one from a major OEM. It's stupid but most people don't know any better.
aahkam - Tuesday, March 27, 2012 - link
Funny comments I saw.What's wrong even if the High End CPU that comes with IGP?
Is High End CPU = Gaming Machine CPU? If that is your logic, you're a rich but shallow boy!
I do lots of Video Editing and Transcoding, I need High End CPU but None of the High End GPU beats Quick Sync in Transcoding in terms of Quality and Speed.
dqniel - Friday, April 6, 2012 - link
"and if they aren't gaming, then what good is that high-end GPU?"I feel like you missed that part. He's not saying that only gamers use high-end CPUs. He's saying that gamers using a high-end CPU won't care about the high-end iGPU because they won't use it. Also, non-gamers who need a high-end CPU generally won't see the benefits of the included high-end iGPU. So, he proposes that the better niche for the high-end iGPU would be on the more affordable CPUs, because then budget-minded gamers could buy an affordable CPU that has a relatively powerful iGPU integrated into it.
defter - Wednesday, March 7, 2012 - link
This is a mid-range CPU, not high-end one.High desktop CPUs (i7 3800-3900) don't have IGP.
KoolAidMan1 - Wednesday, March 7, 2012 - link
It is because laptops continue to get slimmer and slimmer. Getting good GPU performance without the compromises on the chassis that a dedicated GPU would force is the point.Tormeh - Wednesday, March 7, 2012 - link
This.My next laptop will have processor graphics for the sake of battery life and size, and whoever has the best graphics gets my money.
bznotins - Wednesday, March 7, 2012 - link
Seconded.aguilpa1 - Wednesday, March 7, 2012 - link
If the 4000HD is on the level of lets say a 560m I would not hesitate to get a laptop with no dedicated graphics but if it isn't I'm still going to go for the dedicated.