I will agree with
@LtMatt.
There is a benchmark comparing all the V64 cards
Given it's price at £449 (even less if you compare the games it is coming with, it lowers it's value bellow the £400 mark!!!!!!)
https://www.overclockers.co.uk/giga...hbm2-pci-express-graphics-card-gx-19n-gi.html
is great value for money compared to the other cards.
If the PowerColor was at £504 mark (the price bought my Nitro+ earlier in July) then I would have said get the Powercolor or Sapphire without second thought.
However with the difference at almost £100, nah. Ain't worth. Get the Gigabyte.
You can improve the card performance later on by lower bit the voltage, add some higher clocks and replace the thermal paste with liquid metal.
Personally if you have a Freesync monitor, you are set and only the most demanding games you will need to tap into Turbo or custom overclock modes.
I run the Nitro+ between Power Saving and Turbo mode, even if I have it watercooled, because the performance is there depending the games and with these warm days, adding extra heat in the room is kinda pointless when the games I play hit the 100-140fps cap, at 80-170W (Elite, World of Tanks, World of Warships, EU4, CK2, HOI IV) or at 276W (FC5, GTAV etc) on Turbo mode.
Make sure you read my previous pages posts about my experience last 6 weeks playing with the Vega 64 settings and card (liquid metal etc) and my findings.
I find the Vega fascinating, and miles more interesting card to play with it's settings than my previous GTX1080Ti Xtreme. Which was a dull card.
I am sure if you spend 1 hour fiddling with the Gigabyte settings you will get pretty good performance out of it. Also if you have space, you can off the bat improve the performance by having a good fan blowing air directly towards the card.