The 8320e has a lower TDP 95watts vs 125watts on the 8320. The 8320e would be better choice than the 8320 on that mobo however it is still what I would consider inadequate for an 8 core fx cpu. You might see some VRM throttling with high cpu usage, which would hurt FPS possibly quite a lot. Do you already have another amd cpu that used to be in that mobo?