Get the E3-1230v2 and call it a day
Comes with 4 cores + 4 HT and is only $10 more than the 3570k
It will chew through encoding faster than the i5
If you get a z77 board with the xeon, you can raise its multiplier to 4 above its normal turbo (in the 1230v2, up to 4.1ghz and the 1220v2 up to 3.9) at 4.1 the 1230v2 should still beat the i5 since ivy hits a wall arround 4.5/4.6
The AMD FX3850 is also a very good choice if not gaming since the 8 threads it has will also do very well in encoding and stuffs and is quite a bit cheaper
I run a phenom iix4 2.0ghz laptop and until i run out of ram, ipeing a lot of tabs(50+) in chrome is no issue
Most cpus can hbalde basic browsing and opening a lot of stuff st once without much issue
Between the i5 and the 1220, the 3570 has more clcok speed and turbo so it will be faster