GPU not hitting advertised speeds

Niokiryth

Prominent
Mar 8, 2017
27
0
530
Hello
My HD7870 spikes to 1010mhz gpu and 1210mhz memory and then flatlines at 300mhz gpu and 150mhz memory. This is while running Folding@Home. I initially thought it might be a psu problem, but I used a second psu to drive it and it still remains at a low speed. ULPS is off.
Current system:
i7-3930k 4.0 GHz
GTX 970 1541MHz GPU 3004MHz Memory
Super Flower Leadex Gold 750w
Delta Electronics 80+ Bronze 500w for HD 7870.
 

Niokiryth

Prominent
Mar 8, 2017
27
0
530
It doesn't seem to respond to furmark, but furmark runs smoothly at 1080p with 8x msaa for some reason. This is with furmark running on the monitor the 7870 is running. The GTX runs at full speed no matter what monitor I run furmark on.