Apart from performance...does the 64bits adds some better graphics?? Or it is meant just for performance?
It looks pretty much the same when you were on high graphics before - I had the impression that particle effects are a bit smoother, but I could be wrong. Ah well, distant terrain seems to load quicker and the transition is smoother,

The TG update is a performance loss in general, both for 64bit but especially for 32bit. That was known since the first PTS patch. It is far better than it was on PTS (~40% in town) but the hit is still there:
The 60 is just coincidence, no Vsync, the performance hit is just worse the more is going on in the game...
Clearly as the title says - I am curious. Because as for me, I haven't noticed anything new or better to that matter. But what's worse I keep seeing pink objects without texture, starting with my Daedrat, dead animals (such as goats are pink), even other players' mounts. My FPS in PvE has dropped drastically also.
What is your experience with the new client?
Edit: I do realize this is too early to tell (as half of you said, lol) but I wanted to see your first impressions. I am going back to 32bit client and just hope.