This was more true in prior generations of AMD. Newer ones aren't as RAM dependent (largely due to increased L3 cache and a more efficient core interconnect topology). Of course any CPU will still perform some amount better with better RAM.

> and they used much faster RAM in the test only for AMD.

This is a bit of Intel's own fault. AMD officially supports 3200 MHz while Intel officially only supports 2666 MHz, anything higher is considered overclocking the memory controllers even though both are perfectly capable of going much higher than that. Also note the Intel has quad channel while the AMD has dual channel. Quad channel has higher bandwidth but is the same RAM is going to have to run at lower speeds that if it were dual channel.

> That RAM is very expensive so you need to factor that in the total cost if you wanted fo be fair when doing price comparison as well.

The link to the bench now shows "not found" so I don't know what the exact RAM used was but you can get 16 GB of well timed 3600 MHz RAM for $80 so whatever difference there is isn't coming close to affecting that $250 price gap.

Intel certainly does still have an edge on single thread performance but the interesting thing is it's an ever shrinking lead at an increasing cost