Cheapest ever price on Amazon for this card (click other sellers to see this price
). I use this exact card and can certainly recommend it for 1440p.
If you don't want to stretch for a 1070 and can't wait for the Vega cards this would do a job. I'd certainly go for this card over an 8GB 480 of if the money was +/- £50, it will outperform the 480 happily and will fill the gap between a 480/1060 and a 1070.
VRAM wise, I haven't had any issues, HBM is a different architecture entirely.
Usually quality you would expect from a Sapphire card, dual bios, quality heat-sink and fans and good warranty.
Gupster found it for £265 @ Ccl also for those after immediate delivery. 1% Quidco too.