Originally Posted by
Kagthul
the i7 wont help you with the game at all. WoW is brutally single-threaded. an i5 and an i7 at the same clock speed will produce identical framerates. The only difference between an i7 and an i5 is Hyperthreading, which is almost useless in games.
Previously, when you streamed, that largely fell on your CPU as well, so having the extra virtual cores from an i7 really helped with Gaming + Streaming, but with the advent of Quicksync (A technology from Intel that uses the onboard graphics in your CPU (if you aren't using it, which you aren't if you have a dedicated GPU in) to handle the streaming, so it produces almost no performance hit to your CPU at all) and Shadowplay (an nVidia technology that uses the GPU to stream/record gameplay - you have to use one or the other, not both, though can stream via Quicksync and record with Shadowplay) that really isnt an issue anymore.
Because of Quicksync, even people with Core i3s can stream at decent resolutions and framerates.