Apparently there are two different bugs:I suggest reading some newer stories on this issue. First, it's not an Intel CPU issue, but rather a pair of exploits based on how all modern CPUs work. It applies to AMD and ARM processors as well. Second, the performance impact is actually negligible for most people. It's limited to some very specific and not terribly common workflows.
In short, this is a story that was essentially incorrect as first reported and has since been clarified into something completely different. The exploits are real and important, but the response isn't going to slow down our SB2s either much at all or any different than if we were running AMD- or ARM-based systems.