Cryptonight algorithm question

[Branko]

When CPU is used for mining, 1 core per 2MB L3 cache is optimal

When GPU is used, do miners use similar "tactic", for example

2mb GDDR5 per shader...so in case of RX580 which has

2304 shaders, that means 8GB card is better than 4GB?

Is intensity parameter in miners somehow correlated to

number of shaders?