Some of these are debatable.
Our next task, I said in that article, was to address the issue of multi-GPU microstuttering, as it's called, in more depth. [as I said in that article] OR [switch "our next task" and "As I said in that article].
[Also maybe "was" should be "is"]
That product didn't arrive as anticipated, and we nearly gave up hope that it ever would. [Delete Comma]
but those products didn't ship until later last year, in extremely limited volumes. [late last year]