I've got a 4770k at 4.2ghz and 2 7970's at 1150/1600 (ESO does not use xfire yet so only 1 gpu gets used), watercooled. I've also got the G19 keyboard with lcd. I monitor cpu and gpu clocks, temps and loads.
Over the last 3 beta's I have noticed that My gpu load rarely ever peaks at more than 90% usage, hangs around 70-80% mostly while the CPU load is pegged at 100% on one or 2 cores.
What I am saying then is that a 4770k is not enough CPU to power even one 7970 in ESO.