A single i7 980X will never reach the throughput levels of a two xeon setup as mentioned above.. Its highly recommended you go the dual processor route if you plan on hosting a video server which is quite demanding itself.. In addition, you'd need speedy hard drives and a decent amount of ram, 12 GB should be minimum.. The xeon's use registered ecc memories which can get ridiculously costly so you might even give a thought to go with the AMD opteron processors..