B550 + 5900x - new board or...?

[snips86x]

I'm not having much luck overclocking the 5900x on the B550 Tomahawk. The stock config is better than what I can get when overclocking so wondering if it's worth getting a x570 instead.

Stock:
5900x boosts to 4.7ghz, doesn't get very hot under CB23, seems to be quite comfortable ticking away. max 83c.

Overclocking:
Best I can get is 4.4/4.5 but it hits 90c about 4 mins into the 10 min run. Recently installed, so thermal paste is fine. When pushing 4.5 on the BIOS multi, the multi shows in red which makes me think it's a board limit - I also don't have curve optimizer.

BIOS
Multi = x45
vCore = 1.3
Offset @ +0.0250
LLC = Level 4
PBO = Advanced / Motherboard limitations

Looking at the following:
MSI x570 Gaming Pro
Gigabyte x570 Aorus Elite
Gigabyte x570 Aorus pro
MSI MAG x570 Tomahawk

 

[pc-guy]

all core OC will have less clcoks than lettiung the CPU boost by itself.

i would still go with letting CPU manage boost by itself as opposed to all core OC. all core OC is really for undervolting as opposed to overclocking as you really can't get much better than the CPU's own algorithm as it knows which core is best and which core is a bit lame. with all core OC, you are limited by the worst core of the package so you are leaving performance on the table with your best cores.

saying that 1.325V seems to be a decent volt for 4.5GHz all core tho.

i would suggest you go back to PBO and PBO2 and make sure your LLC is on L2 or L3. L4 droops a fair bit still.

X570 gaming pro is a garbage board.