Gigabyte Aorus X570 Ultra vs ASUS ROG Strix X570-E?

[lugs]

Both are my main choices for my build attached below, what are their main differences?

 

As far as I'm aware, its only mostly when it comes to the storage (m.2 and SATA slot differences), but are there any more major differences?

Also, on the support/software side, which brand is better?

 

Thanks to those who would help!

 

PCPartPicker Part List

CPU: AMD Ryzen 9 5900X 3.7 GHz 12-Core Processor 
CPU Cooler: Noctua NH-U12S chromax.black 55 CFM CPU Cooler  ($69.95 @ Amazon) 
Motherboard: Asus ROG Strix X570-E Gaming ATX AM4 Motherboard  ($416.64 @ Amazon) 
Memory: G.Skill Trident Z Neo 16 GB (2 x 8 GB) DDR4-3600 CL18 Memory  ($99.99 @ Newegg) 
Storage: Gigabyte AORUS NVMe Gen4 1 TB M.2-2280 NVME Solid State Drive  ($179.99 @ Amazon) 
Video Card: MSI GeForce RTX 3080 10 GB GAMING X TRIO Video Card  ($1543.99 @ Amazon) 
Case: be quiet! Pure Base 500DX ATX Mid Tower Case  ($99.90 @ Amazon) 
Power Supply: Corsair RM (2019) 850 W 80+ Gold Certified Fully Modular ATX Power Supply  ($140.93 @ Newegg) 
Total: $2551.39
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2021-01-16 09:26 EST-0500