I'll start off with my specs because I know that is the first question that will be asked.
I7 3770K @ 4.8Ghz
Asus Maximus V Extreme
EVGA GTX 780 Classifieds in SLI@ 1300Mhz
16Gb 2133 Mhz RAM
2 Samsung 840 Evo 256Gb
EVGA 1000w P2 PSU
Custom liquid cooling on CPU and GPUs
Here is my problem. I normally play @ 5760x1080p on Ultra-High settings with a few adjustments to view distance and some others. Dungeons, open world I can stay In the 90~100FPS. Trials, and towns can dip into the 60s~70s if there is a lot going on.
Problem lies in as soon as zone into Cyrodiil, my GPUs start downclocking thus getting worse FPS. I monitor my temps/clocks with my Logitech G19 keyboard, so I can view it in real time.
As soon as I zone in Cyrodiil I drop to around 70 FPS with no battles around. GPUs downclock from 1300Mhz to 1100Mhz. When light battles start happening The GPUs drop to 900Mhz. Then in heavy siege battles, They will get as low as 600~700Mhz dropping frames to around 20~25 Frames. Here is the kicker. Dropping to single monitor doesn't seem to affect this performance. Also dropping settings from Ultra-high as far down as minimum and it doesn't help much. 5~10FPS at the most. With minimum settings, my cards go to full idle. Around 300~400Mhz on both cards.
Max temps on equipment during this time is:
CPU :41c
GPU1:37c
GPU2:38c
Motherboard: 31c