alextheblue :
King_V :
I was actually considering a GTX 1070 for my son's computer, but may consider the RX 590 as my son's monitor is a 34" LG ultrawide (2560x1080) with FreeSync in the range of 50-144, and the LFC feature.
If you're considering a 1070, you're only a few bucks shy of a Vega 56. Why not get that instead, especially with a decent FreeSync display? I am not saying a 590 would be a bad choice, but it's not exactly competing with a 1070.
I've actually been keeping my eye on the Vega 56 cards, but:
1 - Most (not all) are rather bulky, and may not fit in his case... or rather, the card would fit in the case were it not for the consideration of the PCIe connectors preventing putting on the side panel.
2 - Oddly, for a 210W card, the Vega 56s I've seen generally require 2 8-pin PCIe connectors. I'd have to therefore get a new PSU
3 - While I occasionally see one single Vega 56 model available for 1070-ish price (typically closer to 1070Ti), most seem to go above $400.
You're right in that the 590 isn't competition for the 1070. The situation is that the 1070 is a bit of overkill, and the 1060 or 580 would fall a bit short. Since there's nothing really in between, well, the situation I have is there.
A 580 MIGHT actually cut it with the LFC, FreeSync and Chill, to keep the smoothness going.
Hence why a 590 might do it, or do it a bit better than the 580. Or, the 1060 GDDR5X,
if Nvidia worked with Gsync. Since it doesn't . . well, that's a no go.
The 590 will be the most potent of the Polaris cards, and given the LFC and FreeSync on the monitor, would keep things smooth.
If I wound up with a 1070, my son would probably set things to 60 or 75 Hz, Vsync, and the 1070 would breeze through it.
If I were to get a Vega 56 (assuming I could find one that fits and does NOT need more than a single 8-pin or dual 6-pin connectors), I'd probably go with the power save BIOS to get it close to it's best fps/watt point, and it probably would, like the 1070, breeze through 2560x1080 if we maxed the Chill setting at 60-75.