(I can understand why people will pre-order the Ti, you simply gots to have the best, but not the 2080. Please do share justifications if you did!)
i have not preordered yet,.... but my logic is as follows.
regarding 1080ti vs 2080
i am not stating the RTX 2080 is definitely worth it.... but there is a very good chance that once the dust settles it is going to be better going forward than the 1080ti...
its not a slam dunk, 3gb less ram and less cuda cores.
however its much faster ram, newer cuda design means each core is faster at like for like speed in mhz and also chances are the cores will clock faster too on average.... then add in the tensor cores and ray tracing cores...
then finally it has the VR Link on the back.
I WAS tempted with the £600 1080ti but personally i decided over all the 2080 would likely be worth the £115......
if i get a 1080ti it will likley be 2nd hand or a fire sale.
regarding 2080 vs 2080ti
personally my issue now is the argument going on in my head about whether or not an extra £335 is worth losing sleep over given the expected 4 year time span before i upgrade again......... ie do i go 2080ti. IF i could find a non blower 2080ti at the initial pre-order prices i would probably order today. This will without any doubt what so ever be the fastest actual gaming gpu on the planet.
but i just cant bring myself to pay more than they were 2 weeks ago (£1050) (and i dont want a blower one)