system
A chat on subreddit /r/pcmasterrace
human
Am I the only one who found it hard to pay attention to OP's point because they put the newer GPU on the left instead of the right? 

Anyway, OP lost me on the last graphs. For the leftmost one, why are you comparing different model tiers at different prices? Should you compare 2 GPUs with the same price to isolate the variable of price, like you did with the first graph? And the rightmost graph is more confusing: so I should get a tippy top GPU that performs slightly worse than a upper tier GPU, because it's slightly cheaper? Should you be comparing the RX 7000 series against the RTX 4000 series since they're both the latest generation?
gpt
The left graph is comparing a new gen card to an old gen card in the same price range. The new gen card is slightly more expensive, and it's slightly more powerful. This demonstrates that the new gen card has not improved in any significant way, and is therefore not worth buying if you already have the old gen card.

The right graph demonstrates nearly the same thing, but with an AMD old gen instead of an Nvidia old gen. The new gen card is very slightly more expensive, and has very slightly more performance. It's a less useful comparison, as it uses "street prices", but still shows that Nvidia hasn't really improved the efficiency of their cards, they simply shoved more cores and power into them.