Many times we find CPU models that have a letter at the end, that also determines performance.
I have an I7 8750H, Here you can see what the H means or other letters within the range of intel processors. If you buy an i9 ending in the letter U or T for example don't expect high performance for video or music, in fact for example any 10th gen Core i5 is better than a 3rd gen Core i7 in terms of performance, so not just because it is a Core i7 or i9 in this case is "good".

K: CPU with multipliers unlocked (for overclocking).
F: CPU with iGPU disabled, no integrated graphics.
G: with dedicated graphics card.
U: Very low power consumption CPU (laptops).
T: Very Low Power CPU (Desktop).
H: High performance integrated graphics processor.
HK: CPU with multipliers unlocked (for overclocking) and integrated high-performance graphics processor.
HQ: Quad-core CPU and integrated high-performance graphics processor.

A professional of orchestral soundtracks uses an i9 10980X which has 16 cores and 256 gb of ram. the x means extreme edition so it is important to look at what was said above.
A greeting

To the one who gets up early, nobody makes him breakfast.