Well i will tell you guys my experience....
I had fx8350 , asus m5a99x evo r2.0 mobo and always had 1866Mhz corsair ram 8 gb cl 9. I added to this r9 290 asus direct CU II.
while the r9 was , let's say, just quieter than cpu, i rly demanded MORE MORE performance, it barely managed to keep 60 solid fps IN ANY GAME. i mean, i had drops to 30-40 sometimes, while 200 at skyes.(crysis, bf3/4, all cod series to bo3,starcraft 2, total war, gtaV, ALL unreal tournament series, saints row (3 and 4), All serious sams (only from hd up), sleeping dogs,
Then i said, let's try intel, and my dad borowed me an i3 4160, that smacked the fx out of question. i3 simply obliterated the fx.
Then, i said Intel FTW and BTW.
so, i chosed an ASUS z97 mark 2, 4790k, and my r9 was still there.
i rly got improved performance, but i rly expected MORE, (1080p user here, ALL maxed ou, and adjusted AA in games, not always maxed ou AA)
then i sold my 290 and bought an ASUS GTX970 strix OC.........
when i seen how the nvidia performed......... i said BYE BYE AMD, FOREVER.
I will never ever go back to any amd product.....
i always checked the PC temps, always took care of pc, and bios settings, i am not an ignorant. At nvidia you should disable shader cache and trilinear optimisation, and set HBAO in control panel to high quality (maxed out),
i can say that this gpu is DEAD silent while idle, and cannot hear in load, while the rest of pc is also silent (vengeance c70 full corsair build NO HDD IN PC, neutron xt 240 gb)
okay, this gpu at 4k (using dsr) without antialiasing does a frekin good job, yes , it drops to 45-50 in bf without AA, but hey, 4 gigs and 4k ^^.
another thing, this joke with 3.5 ram is Bull***t.
I have no stuttering in any game
the only game that works like crap, (also on r9) is cod ghost. bo3 once an hour stutters to 30fps about a half of second, then keeps 60 al the time.
about 390..... i don't know.... but considering the low budget of amd, and desperation of releasing a card, to TRY compete with nvidia, and betting on fact that is just a rebrand...... just avoid amd.
while.
As i seen benchmarks on internet, i expected that 8 gigs of vram of 390 should rly beat the s**t out of 970, well, it isn't like that...
while i can admit that MAYBE 390 is better at 4k, while nvidia doing 20fps and 390 24fps, both are same s**t.
you can't rly play at that framerate, so neither are good at 4k, maybe 1440p, not 4k.
while i tested 970 sli , using a friend 970 and mine pc..... 2 of these card are simply MONSTROUS. (4k maxed out every game, no AA{just because usseles at 4k} 60+ FPS)
i found that the MSI version of 970 is rly rly loud, compared to my asus strix oc.
msi was under my card (slot 2).
Hope this helped somebody!
p.s: my cpu cooler was (in the tests) zalman fx70 with sp120 on it. cannot hear! (42 Degrees celsius on load, 20-25% fan speed @ 21-27 ambiental.
i rly want dead sillent pc! i hate noises! i need pc, not coffee maker

)
PSU: Corsair RM750 Modular (boss cable management,
I never overclocked my card, neither of one, but the r9 i tryed at 1000Mhz, and that was rly hot! (speaking of temps) 95 degress! (load)
while stock had 85 on load