Is manual overclocking the PC worth the while?

I mean overclocking the

1) RTX4090 GPU
2) CPU
3) RAM

For GPU

All RTX4090 GPUs perform alike..............maybe some fps differences. Some GPUs allow 10% OC while others can give 30% OC but fps maybe difference by 5fps. 5fps difference in gaming is not noticeable.

For GPU without OC power...

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