You're reading the situation wrong.
The reason why (Since Sandy Bridge came out) you should have never gotten anything less than a 4 threaded Intel Sandybridge @ stock 2500k level of single threaded performance is what these tests blatantly show.
The marketers on the forums that try to say otherwise are simply lying to people for various reasons and agendas.
Yup, that's why this thread is a joke. The OP is trying to prove that AMD cards are CPU bottlenecked with garbage i3, FX and 3200mhz i5s, while blatantly ignoring that those same CPUs still bottleneck the 970. The argument is flawed since it positions the argument that one shouldn't buy an R9 390/390X/480 with garbage CPUs but none of those CPUs even allow anything faster than a 960 to be fully utilized....
The real takeaway from this article isn't that AMD cards are more CPU bottlenecked, but that for RX 480/390/970, you want nothing slower than a 2500K OC and for 1070/980Ti/Fury X, nothing slower than a 2600K OC.
That's why to me any 2016 gaming PC without at least an i5 6600K is just a waste or $. I see people with i5 2400 or i7 980X looking to get a 1070/1080 and I just have to laugh.
Another reason why the argument against RX 480 is flawed is that there isn't a single NV card that has 4GB of VRAM and good DX12 performance at $199. Chances are someone who has an FX6300/i3 can't afford a $250-275 GPU.
If I were building a new PC in 2016, and I couldn't afford at least a 6600K, I'd either go into the used market for 3770-4790K or just save up.
If someone cannot afford a $240 6600K to keep for 5 years, they are likely pirating PC games. The TCO even if one sells the CPU for $90 in 5 years is only $150/5 = $30 a year! Most people in Brazil, Russia, Asia who buy the garbage APUs, i3, FX, etc. straight up pirate PC games because it's not logical that someone can afford $30-60 USD PC games but they can only afford a $50-100 CPU over 5 years? Please.
What we should be doing is guiding PC gamers to spend more upfront to build a good foundation for a PC (CPU / good PSU, good monitor). The videocard can always be upgraded 2-3X over 5-6 years.
The argument in favour of 970 is completely illogical because if someone could only afford an i3 6100 instead of an i5 6400, then how the hell is this gamer going to have the extra $ for a 970 over the 480 4GB? Secondly, this thread straight up ignores the awful DX12 performance of the 970.
It sounds like a pre-launch 1060 3GB NV PR to get people to skip the 480 in favour of a VRAM gimped NV card. IF NV releases a $199 1060 6GB, then we can talk. Until then, a $199 480 4GB is the best mainstream GPU.