I want to purchase a new computer that I want to use it primarly for video editing and creating home video blu-rays. I will use either corel ulead or sony vegas video studio ( i did not choose yet which one) I do not know which processor to buy 920 (930) or 860. Maybe you have other suggestions.
Unless your programs would benefit from tripple channel memory (couldn't tell ya ) you'll be fine with the 860. X58 also has better RAID configs as well I believe so unless you need either the 860 will do ya great.
The 860 and 920 perform about the same clock for clock (the 860 has higher stock clocks and turbo, making it slightly faster at stock, but they have the same OC headroom). You are really picking between the sockets, i7 860's 1156socket and i7 920's 1366socket.
The i5 is also a great CPU/deal (if you go 1156 socket) and is pretty much an 860 with no hyperthreading.
To be honest I did not play a game for years. The last one and probably the only one that I would play would be ffifa (soccer).
Regarding the cpu, I will purchase the system already assembled and the difference between the one with 860 and 920 is $70. Everything is the same just the CPU and MB differ.