660m or Optimus?

I've been looking around at Sager's for a few weeks now and have pretty much decided on the NP9130 or 9150.
The issue is, I like the idea of having the 660m Kepler card in the machine, and it's not exactly available from most resellers.
But after poking around on these forums I realize I might not need it.

So can anyone tell me if the Kepler's thermal advantages will trump the the computer running on integrated graphics using Optimus? Or is it close enough as to make no difference?

EDIT: I accidentally submitted the same thread three times due to browser issues... and being new I can't figure out how to delete it. Sorry NBR!

 

I'm a bit confused. Are you going to be gaming with this notebook or just web-browsing etc? Optimus switches from an Nvidia dedicated GPU (such as your 660m) to an integrated accelerator (such as an Intel HD3000). As such your thermals are always going to be lower just using an integral graphics. A discreet GPU, such as a 660m will always produce more heat.

And another question are you worried about heat in the laptop or battery run time? Again, stick with the integral graphics then vs a dedicated.

Read about Optimus here.

 

Hi sorry about the confusion, was tired when I posted that.
I worded it a bit badly, or wasn't thinking straight, one or the other.

Newly worded version of question is this, is it worth it to get the temp decreases when using the 660m over the 670m, or is the difference only a slight one? I understand throwing the Optimus in there was confusing, but it was just after my late night epiphany that I might not need the 660 to run it cooler if I have the integrated graphics. But they run at completely different times (ie gaming and not gaming), so it was a silly question.

The link helped a lot though, so when Optimus switches to the integrated graphics, there is no power going through the GTX card?

 

It still has some power going through it and in some wonky cases it keeps quite a bit. The heat difference between a 670 and a 660 should not be that great to worry about if the notebook has adequate cooling. Again, each notebook has different cooling methods and so each will run at max gpu a different temp. You can help in some cases by re-pasting the gpu and cpu with a better thermal paste. and you can help by getting a notebook cooler to help force air to your intake vents.

Hope that helps!