i am running Windows 8 pro 32-bit in my core 2 duo e7500 2.93 ghz with 4 gigs ram...my problem was when i played music files in background or while watching HD videos i could hear stuttering sound....i monitored the latency using latency optimizer...and the graph was spiking red...after searching for a fix...i found that increasing the pc power setting to max performance would fix this....currently after putting in the performance mode....the stuttering has stopped...but when i was using windows 7 few months back ...i was running in the recommended power setting (balanced)...and the latency was very good ...there wasn't any stuttering.....also now i am going to buy a HD 7750 which is going to be powered by my generic 450W PSU....my doubt is ...do i have to switch back to windows 7 to minimize the energy consumption ...else win 8 will work fine along with HD 7750 in high performance mode?...