The GTX1060 3GB is struggling. In all those situations the 6GB is faster and the RX470 is faster and the GTX970 is not slower.
You need at least 4GB of VRAM with a modern card with a decent speed core.
The 3GB looks OK in isolation for those just comparing a slower card to it,ie,a GTX960 or something but when compared to its brethren it shows some massive performance gaps.
Edit!!
It gets better,in some of those links the minimums are much lower for the 3GB version too. Lets look at ROTR again:
http://hexus.net/media/uploaded/2016...4e69ef49d5.png
That shows the GTX1060 3GB is being VRAM saturated.
In a NV sponsored game the RX470 4GB have better minimums. It is seen with other reviews.
ROTR,Hitman,AC:U,Forza,Deus Ex:Mankind Divided and so on are some of the most graphical taxing games this year and the GTX1060 6GB does far better than 10% over the 3GB version and in many of those games the RX470 4GB and GTX970 4GB with slower cores are holding their own.
Plus plenty of people mod games too - a number of the mod creators advise over 3GB of VRAM for the highest quality texture mods too.
3GB is not enough if you want a card which lasts on a core as fast as that in a GTX1060,you need at least 4GB for longevity in a card.
This is why ignored all the people who said 2GB was fine on a GTX960/R9 380 since 4GB was OTT. Yeah,right:
https://www.computerbase.de/2015-12/...380-vram-test/
The 2GB versions are doing much worse in many games in terms of frametimes and even minimums.
So if that is with a slower set of cards,what happens with faster cards,as you want to turn even more settings up?
As the DigitalFoundry said -
get a GTX1060 6GB.
Second Edit!!
Some more games having abnormal performance drops for the 3GB version:
http://www.techspot.com/review/1263-...-4-benchmarks/
Trying to compare to slower cards is not relevant as the GTX1060 3GB is a fast core more like a GTX970 or RX480. So compared to its competitors things start get worrying.
Also,another game:
https://www.computerbase.de/2016-09/...-radeon-rx-480
https://pics.computerbase.de/7/4/5/5...1473672149.png
Latest Deus Ex:
https://www.computerbase.de/2016-09/...force-gtx-1060
Large frametime spikes.
If you look at the benchmarks for the 4GB cards in those games(with fast enough cores) they tend to do relatively better.
Forza Horizon 3 seems to do much worse on the GTX1060 3GB too.
All of these issues you see are down to the fact the GTX1060 3GB has less VRAM and it has a fast core.
Sure a GTX1060 3GB is a better choice than a GTX1050TI 4GB as core speed is important,but the problem is the GTX1060 6GB can be had for as low as £30 more on special offer and the RX470 4GB is cheaper on offer too.
It will be great for certain games like WoW like Planetside 2 which are not VRAM heavy
AFAIK but at the same time more and more newer graphical intensive titles are using more VRAM. It is a decent card - but the problem its in a very crowded market.
In isolation,ie,there was no RX470 4GB,no RX480 4GB or even no price reduced GTX970 4GB cards,it would look impressive in its own right.
However,it isn't so you can't just ignore the cards around it and those just above it.
Anyway,we are going around in circles here,so will leave it at that.