I’d pick the first option for its better performance and reliability.
I’d pick the first option for its better performance and reliability.
I’d likely pick the Tomahawk because it offers top-tier build quality, ample rear I/O, better audio, and an extra M.2 port. The UD and Prime models provide more PCIe capacity, which benefits heavy card usage, though the UD’s layout is more logical for modern GPUs. The Z690 option isn’t appealing unless you’re only using a GPU and skipping other expansions.
On IBUYPOWER's site, nearly all ASRock models exceed the price of the Z790 boards I'm considering. The Z690 boards appear to have very few heat sinks.