With 3770k it is good to go with Z-77 mobo. This you can OC with good cpu cooler.
But if you still looking cpu and if you do not OC then look Intel xeon 1230V2 cpu.
This is good pair with B75 or H77 mobo.
With B85 you need to use LGA 1150 cpu like 4670k, 4770(k) Or xeon 1230V3
With Xeons you need GPU because the do not have iGPU.
But they do have HT + 8 Treads. So they are like i7 for price i5. They are as fast as the 3770 or 4770.
Just bit slower clock speed. But this you will not notice when you use PC. Only way notice diffrence is run benchmarks. And then again diffrence is so small.
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+E3-1230+V2+%40+3.30GHz
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+E3-1230+v3+%40+3.30GHz&id=1942