The Verge (Lockhart): "We understand that includes 7.5GB of usable RAM, a slightly underclocked CPU speed, and around 4 teraflops of GPU performance."

[the-pi-guy]

What the heck is the point of this?

If all xsx games need to support lockhart, it will hold things back. Not for most games but for some.

If xsx games do not need to support lockhart, then MS will have 3 unrelated systems on sale at the same time.

I think the hope is
XSX: 4K gaming
XSS: 1080p gaming

It probably won't work out that way...  

I expect MS to discontinue the Xbox One this year.