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My own decision with this same mid-2011 i7 ( which runs great with an SSD ) is to wait for Intel's tock release( Skylake ). Even if Apple produces a Broadwell iMac, in my opinion the tock release versus the tick is preferable. Waiting isn't a problem for me, so the next significant improvement( Skylake plus possible upgrades mentioned by other posters ) will make me a buyer. Of course, personal choice and specific needs of each user vary, so YMMV.

Whoever said Skylake was delayed:

http://www.techradar.com/news/computing/pc/unannounced-intel-skylake-cpu-appears-in-mini-pcs-1295466

We'll be hearing more from Computex
 
Wait for few reasons: Thunderbolt 3, usb 3.1 Type C, Skylake and i personally hope for AMD FIJI with HBM memory

AMD has a press conference tomorrow at Computex. If no big reveals, it's gonna be during E3 then
 
AMD has a press conference tomorrow at Computex. If no big reveals, it's gonna be during E3 then

Too early, normally GPUs are launched for Q4. I'm curious what AMD can share more. A few weeks ago there was also an AMD investors day, where they shared details on their CPU roadmaps.
 
Too early, normally GPUs are launched for Q4. I'm curious what AMD can share more. A few weeks ago there was also an AMD investors day, where they shared details on their CPU roadmaps.

I didn't mean they'll be released, just announced. But they'll definitely find their way in to new iMac by October
 
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