Question regarding shader cache

[HeyAlucard]

Hello I'm curious on how the caching works.
Does every computer make its own special cache for games?
Is bigger cache better?
Does every game have the same cache like if my friend had the same game if my cache was bigger would it be better?
Last but not least, do the caches differ in dophin versions.
Using rev 4.0-3711

[JMC47]

Each computer/GPU/driver version gets its own shader cache. Upgrading any of those will invalidate the shadercache and you'll start over.

Upgrading Dolphin Versions will invalidate the cache and you will start over.

Bigger cache is generally better, unless something bad happens.

[HeyAlucard]

Thank you very much. I understand now.