I was gathering data from everywhere. I daily read 15 hardware sites, so you can imagine the search I did.
From all the data I gather, I chose Gigabyte G1.
Why?
Better temps. I live in the hottest EU country so I wanted the best temps.
Not only for core that @MonsieurX posted but for VRMs as well.
This is for Gigabyte G1:
And this is for MSI gaming:
Also an other guy that reviewed ASUS, MSI and Gigabyte Cards found that the G1 from Gigabyte was the only GPU that wasn't throttling.
So that makes also Gigabyte's G1 faster than some other maybe in the same or faster clocks. How is this happens? Kepler and Maxwell architecture boost the clock depending on how good a cooler is cause of temps.
@Mortalmaster123: Powercolor R9 390X PCS+ is a nice GPU that got good performance (since its the R9 390X model it should be faster than GTX970) and great temps.
But it has a problem that annoys some people.
Its loud when you are gaming.
Acoustical Testing from Hardware Canucks
What you see below are the baseline idle dB(A) results attained for a relatively quiet open-case system (specs are in the Methodology section) sans GPU along with the attained results for each individual card in idle and load scenarios. The meter we use has been calibrated and is placed at seated ear-level exactly 12” away from the GPU’s fan. For the load scenarios, Hitman Absolution is used in order to generate a constant load on the GPU(s) over the course of 15 minutes.
Throughout our testing with the PCS+, one thing stood out: it was one of the loudest cards we’ve encountered in a long, long time. At idle, the fans don’t make a peep since they’re programmed to turn off when the card is idling but when gaming, things get messy quite fast.
As you can see in the chart above, PowerColor seems to have programmed the card to top out at about 2000RPMs which isn’t all that bad considering the fans are actually quite quiet at that level. However, that step doesn’t last for long as the card then kicks things up another gear before leveling off at a ballistic 2350RPMs.
We have a funny feeling these fans speeds have been carried over from the R9 290X PCS+ which did indeed require higher RPMs to insure nominal temperatures. However, the Grenada XT core is supposed to require substantially less cooling which is why PowerColor’s competitors have been able to effectively reduce their fan speeds despite utilizing identical heatsinks as their respective Hawaii XT-based products.
The acoustic numbers shouldn’t come as a surprise with the PCS+’s fans spinning away at “good GOD!” levels. What makes this so frustrating is there’s absolutely no need for this; PowerColor could have implemented a fan speed profile that allowed their card to hit between 70°C to 75°C with a significantly more intelligent RPM output method and we would have been singing its praises.
Gigabyte has the better cooler, so you can possibly get a better overclock, than the others.
EVGA cards I noticed are a big hit and miss. Mine I can't even get +100 on the core. Jayztwocents, well his SSC? a dud for OC'ing, he said it wouldn't go passed 1442. If that is true, he didn't even get +50 on the card.
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