> The cheapest new mac mini is $600 on Apple's US store.

And you're only getting 16GB at that base spec. It's $1000 for 32GB, or $2000 for 64GB plus the requisite SOC upgrade.

> And it has a 128-bit memory interface using LPDDR5X/7500, nothing exotic.

Yeah, 128-bit is table stakes and AMD is making 256-bit SOCs as well now. Apple's higher end Max/Ultra chips are the ones which stand out with their 512 and 1024-bit interfaces. Those have no direct competition.