What kind of performance can I expect from this PC?

I'd say it will dip down to probbly 48fps at least in bioshock infinite at ultra.

can't say about crysis 3

You're likely to run hot with that off-brand feed and you will likely see ghosting as you play on a TV.

Pretty ok... SSD would be nice addition anyway ;D

If you're getting/own Crysis 3, try out Post Processing, Shading, and Shadows on High and everything else Very High with SMAA. Game still look gorgeous with those settings.

Now just mail me your old PC ;) I'll sit it right on top of my 2007 2.2ghz Core 2 Duo, 4gb ram, 4500MHD integrated ass-top :)

get a 280x ... it's WAY faster than a 760.. My brother have a 680 (same as 770) and my 280x is faster...and also have better frametime

if want crossfire/sli ok get 750w psu... if not get a 500/550 psu it's more than enough for stronger cards ...my 280x run at 1170/1600 1.2vddc and no problem at all with cx600 =500w psu. it's a waste of money and less efficient

and well those ripjaws are pretty good..

just one more thing...I have almost the same spec.. and it's really good for gaming!
if someone say AMD is not good...think if asus , gigabyte , the whole sapphire and etc would waste their money manufacturing those expensive highend cards.

Am I the only one who find the name of that RAM to be hilariously silly?

Anyway, sorry that I can't be of more help. I've been a bit out of the entire hardware loop for a while now.

I have:
Intel Core i5-4670
8GB RAM
Gigabyte GTX 760
Gigabyte GA-B85M-D2V
Chieftec 600W

Bioshock run great, Crysis i dont now

I'd personally expect the powersupply to blow if you try to pull anything more than 600 watts over it. You likely won't with the current build, but adding in more hardware you might.
The PSU is over-sold in wattage, the 750 watt only delivering a stable 585 watts.

The rest of the build though, for the original question... I'd expect it to perform over 30 FPS with crysis 3 on a mix of high/ultra. Not a steady 60, even with AA off. Dips to low 30s/high 20s, with averages probably around 45-50.

As for bioshock Infinite, I'd expect it to perform very very well. With everything on and up, besides AA, I'd expect it to be running 60+ averages with rare dips down into high 40s.

The CPU will be giving you more than enough for any upgrade you could put in it as well, not even being a bottleneck for say a 780 TI in the future.

If possible change your power supply. It's the same build as the Kingwin Mach1 800w.

Primary caps do look to be Fuhjyyu, which are low quality!
The DC ouput quality is low aswell... The power supply has ~100mV of ripple/noise when under 80% load.

You need more professional help, this is hardly the place to ask.

check /r/buildapc

Summany of what you should do:

Get an i3 or cheaper i5, a non overclockable motherboard, cheaper 1333 MhZ CL7 ram (which perfoms better in games), add a 120 GB or 240 GB SSD to the setup, get a 600 W PSU with 80plus a rating, upgrade to a GTX 770. If you want to SLI in the future you can stick with 750 Watts.

This is ofcourse, if you want it for gaming and gaming only.

Don't expect high FPS in Crysis 3, it is almost impossible. Any other game (except for games with poor optimization) should do just fine with the 770.

I would change your brand of RAM. G. Skill is one of the "Let's take advantage of idiots by making it look cool while offering a product that is more expensive and not any better than the competition if not worse" brands. Also, while the hard drive is great for mass storage, you should probably run the OS and main programs on a SSD. Even a small SSD will work for Windows or Linux or whatever, but your performance and load times, especially with 8 GB of RAM, will suffer if you constantly have to read the drive like a ton of games do. If you use your mass storage drive as a secondary drive, the system read functions are offloaded from the traditional HDD and you get massive speed benefits.

I have a Cooler Master Hyper 212 EVO and I love it - when the damn fan works. It is rated at 40,000 hours lifetime expectancy, which is about 3 years, and I got about 5 months out of the first one before it started making a grinding noise. I got a replacement from Cooler Master under warranty and the new one went out in the same fashion barely over 4 months later. Luckily the cooler does an awesome job on its own and I didn't burn up my CPU though it did get pretty close to max recommended temperature. An exact replacement is only $8.00 from Cooler Master so it boggles me that they would use such a cheap part for such a critical component. Expect to eventually replace your fan if you get this cooler. There are people with comments and reviews reporting the same issue all over shopping and tech sites. For the price you can't beat it though and replacing the stock fan with a $20 Noctua NF-F12 PWM still gives you an excellent cooler for under $50.

I would get a different power supply. That thing is junk. Never cut corners with a power supply. One zap and your whole system could end up like toast.

Get a GTX 770 instead. Unless you're planning on overclocking you can go with just the 4670 without the "K" and the money you save will cover the cost difference.

Bioshock Infinite should run fine but I have yet to see a system run Crysis 3 on any setting and get a constant 60 FPS. I blame the game though and not anyone's hardware.