Overclocking
The Gigabyte Z490 Vision G showed a fair bit of headroom for overclocking, at least for short runs of wPrime. I was able to achieve 5.3 GHz at 1.38 V core voltage. However, longer runs were not stable. Overclocking is largely limited by temperature because the 10-core Intel Core i9-10900K will overpower any ambient cooling solution. Depending on settings, the system will either crash or severely drop frequency.
For memory overclocking, the Gigabyte Z490 Vision G did well, reaching 3900 MHz stable at XMP timings and voltages on my Trident Z Neo kit. Gigabyte has a feature that auto-tunes the memory timings to maintain stability when overclocking. While I disabled it for my test to keep the benchmark standardized, I think this is a great feature for new overclockers because it gives them a starting point for their manual tuning.