Any thoughts on doing a test of the B570 & B580 vs say the Geforce 4060 & Radeon 7600 with a more modest CPU? A lot of testing going on other sites is showing that the B580 looks to have some sort of driver overhead issue, and when paired with something like a Ryzen 5600 the Intel card end up falling behind the AMD & Nvidia ones in several games where previously the Intel card was leading when using a high end CPU. That seems pretty important, since very few people will want to pair a budget card like this with a top end CPU; budget & older CPUs will be much more common for those GPU shopping in that $200 to $300 price range.
I'd vouch for any one of the following:
Core i5 9600
Core i3 9300
Ryzen 5 2600(X)
Ryzen 3 2300X
These platforms are nearly 7 years old, and would most likely be running 560, 570, 580, 1050, 1060, 1650, 1660, or 2060 GPUs. They'd be prime suspects for an upgrade. I don't believe just about anybody on a newer platform, like an R5 5600 or i5 10500, would be interested in upgrading from a 2060, 2070, 5600 or 5700 class GPU to a B570/B580.
I can't imagine pairing a sub $300 GPU with a new CPU above $200 for gaming. Budget machines would be even stingier on the CPU than the CPU.
But going forward, opting for a 7600/13400 for a new build low/mid-range build benchmark would be great. I'd lean more towards AMD since Intel can't seem to figure out CPUs anymore.