Personally I prefer running my Sapphire R9 390x at default clocks of 1055 / 1500 for gaming/daily use as I feel its more than enough for me and I can easily keep my core and VRM temps in the mid 60c's with a quiet fan Profile.
But this is overclock.net and "if everyone else jumped off a bridge....?"
So this is just for fun of course.
Here is what I would consider my GPUs max limits of 1180 / 1700 with +100mv / 100% fan / +50% PWR
Any more on the core I get artifacts.
Any more on memory I get black screens.
GPU temp - 75c / VRM1 temp - 102c / VRM2 temp -98c (remember 100% fan speed & +100mv)
So there is no way on earth I'd even try using Trixx to get more voltage and try for 1200 core with these kind of VRM temps, besides as I said I think these kinds of overclocks have no real use for me anyway other than for testing, because I consider these clocks unrealistic for any prolonged use.1180 / 1700 Firestrike1100 / 1700 is what I would consider my GPUs "sweet spot"
since I can hit that without a voltage increase while easily keeping the core and VRM temps under 70c with a quiet fan profile.
Now If I was told I had to overclock, these are the clocks I would personally choose for daily use.
So for those who were asking for 1100/1700 scores to use for comparison a few pages back, here is mine.1100 / 1700 Firestrike
1140 / 1700 isn't too bad either but requires a mild voltage increase of +30mv....Anything over 1140 requires +50mv or more and my VRM temps start to climb fast.1140 / 1700 Firestrike
Notice how my physics score actually goes down after 1100mhz on my setup? Odd
Anyway, I'm done "testing" and I'm back to gaming at my default 1055 / 1500 clocks and couldn't be happier for the perf/price I paid.(I got my Sapphire 390x for $399 with free shipping and free Mad Max game on Newegg....I see the price is back up now and the MSI is now $399 instead, so one could assume that 4th QTR prices/deals should be even better yet)
If you could combine Sapphires core cooling with MSI or XFX VRM cooling, you'd have the perfect air cooled 390/390x IMO.Edited by MTDEW - 9/23/15 at 6:33am