http://www.tomshardware.com/reviews/gef ... 17-16.htmlAll-Around Best GeForce GTX 670: Gigabyte N670OC-2GD
Gigabyte's card is quiet at idle and not too loud under load. Its cooling performance at idle, during normal desktop work, and during gaming is even better than Asus' card. It ties Zotac's effort for the lowest temperature at idle, but achieves its goal at a mere 20% fan duty cycle. When we configured it to cool our card down to 70°C, its sound level was still acceptable.
This is the slimmest card in our test, it weighs the least, and is even suitable for SLI configurations on motherboards with a just a single-slot gap between 16-lane interfaces. Unfortunately, that's pretty common. Although the N670OC-2GD doesn't include the highest overclock, it's currently selling online at the same $400 price point as completely stock reference cards. And that's with the Windforce 3X cooler. That combination cannot be beat.
http://benchmarkreviews.com/index.php?o ... mitstart=3
I know you are not running SLi, but the single card performance is also shown in that review... the 660 Ti is so close the 670...
http://www.xbitlabs.com/articles/graphi ... html#sect0X-bit labs liked the Asus 660 Ti over the Gigabyte 660 Ti since the Asus card is quieter... but both are great cards imho...
An overclocked 660 Ti easily keeps up with a stock 670:
http://www.xbitlabs.com/articles/graphi ... html#sect1You say you want to buy EVGA 670 but be warned, its little brother the EVGA 660 Ti placed last in the shootout competiton ( single fan design ) :
EVGA GeForce GTX 660 Ti Superclocked is a copy of the reference card with a slightly overclocked GPU. We have a lot of respect for EVGA, but, unfortunately, the company loses this round by taking the last place in our competition. Noisy and relatively inefficient cooler, simple reference PCB and mediocre results in our overclocking and performance tests determined our decision. Maybe this is the reason why EVGA has already discontinued this product, replacing it with a more interesting FTW modification.
STRONGLY recommend you buy either Asus or Gigabyte brand video card ( whether you go 660 Ti or 670 ) over EVGA , if that is possible from where you are buying from... much better cooled cards, will overclock better, and are quieter as well...
If you have lots of money then go for the 670, else save some and overclock a 660 Ti, same results in the end for the most part...

And as Dire says, no, your cpu will not bottleneck with a single graphics card like the ones above...
BTW, here is Skyrim performance of these cards ( your fav game ) :
http://www.bit-tech.net/hardware/graphi ... xtreme-r/5Yes, the 670 is 8 fps ( average fps score ) than the 660 Ti, but a little overclocking would even that up in no time!! Save your money...660 Ti rocks for the price!
