I think it's better to get a more powerful PSU with that setup, so at least the 650.

For what i can understand :p.

650 to be sure.

Bigger is always better. I mean more is better.

From the looks of your system you need a 650, the 500 power supply's transistors will over heat with a pc like that, get a good beefy power supply to handle the parts, and get a good CPU (processor) cooler too, the hotter the CPU gets the more power it will pull and the hotter the power supply will get good luck

Well, it is, but it's kinda useless if you don't have a such specs. Like, if you have a low end pc, 500W is more than enough.

extreme.outervision.com/psucalculatorlite.jsp

Anyways, Seasonic M12II 620w 80+ bronze is good. Or XFX Pro Core 650w 80+ bronze too. I'd go for Seasonic though, 5 yrs warranty and one of the best. Good specs there.

Yea go with 650W. Just sayin' I have 525W and I probably need more later on.

Seeing how your is a crazy, hardcore gaming/editing system due to 660's and i7's, I would recommend a 650W.
500 is enough, if you're working with i5 processors and not planning to overclock.

If you want to overclock your system, I'd recommend a 800W 80+ gold efficiency power supply.

Size matters. Go with 650. :v

Hmm.. It only depends on your rig... but in the other side the bigger the better so 650 watts.

newegg.com/Product/Product.aspx?Item=N82E16817139010

Get this! iawdjijfipondpfnin! lol. This will serve you well!

There are clearly lots of people who know nothing about PSUs. First of all it does not matter if the label on the PSU says 500W, 600W or 1000W if the quality of the PSU is horrible. Jonnyguru What PSU are you going to buy and where? If it's filled with crappy chinese caps it won't last long. PSU is maybe the most important component as a bad one can kill other components. So don't save like $20 on your PSU.

3770K + GTX 660 Ti draws like 250W from the wall when you're playing video games so don't buy too big a PSU. 250W with 90% efficiency PSU is 225W from the PSU. If you oc the hell out of your CPU and GPU, your PC will draw like 350W from the wall. GTX 660 Ti doesn't OC that much. Here's one review (note the CPU on the review is 3960X @ 4,3GHz which draws more power that 3770K). I tested the power consumption with my rig (AMD Phenom II X6 OC'd @ 3,9GHz/1,55 and AMD Radeon 7950 OC'd @1115MHz/1,131V) some time ago. My rig drew ~320W on Skyrim and ~600W on Prime95 + Furmark (which doesn't represent anything near normal conditions, Furmark just kills your GPU and only an idiot would run those two programs at the same time) from the wall. And my components draw more power than Intel Ivy i7 and GTX 660 Ti. I don't say you shoud go with a 400W unit, but it would be ok. The efficiency of a PSU is highest on around ~50-60% load, but your PC will be running idle most of the time with ~100W draw from the outlet. So all in all take a quality ~500W unit if your not going to get another gpu in the near future. I'd buy ~500W high-end Super Flower/Seasonic/Enermax (or a rebranded one like Kingwin or Corsair) PSU.

By the way you can't OC your CPU with that motherboard. Buy a board like Gigabyte Z77X-D3H (or any Z77 chipset board) if you want to OC. You'll also need a proper CPU cooler like Thermalright HR-02 Macho. If you aren't going to OC, don't take 3770k. Take for instance Xeon E3-1230 v2 or E3-1220 v2 (technically 3770 with a couple of hundred MHz lower clocks and without integrated GPU).

Are you going to OC your GPU and/or CPU? What do you plan to do with your PC (video editing, gaming, etc)? And where are you going to buy your components?

Oh yeah, poor combination of Mobo and CPU, I didn't notice that.o.O

Seasonic M12II 620w 80+ Bronze is pretty enough for him.

Good choice, buddy :3

650W would come in handy since you record games and stuff.