Redwood Ridge (DP1.2) Thunderbolt chip in 2013 iMac?

[zaphoyd]

Has anyone who has gotten ahold of a 2013 Haswell iMac been able to determine if it is using the newer third generation (Redwood Ridge) Thunderbolt chip? This is the chip Intel's docs claim should be shipping with Haswell processors and allows DisplayPort 1.2 pass through when connected directly to the machine. (http://www.tomshardware.com/news/Th...-Redwood-Ridge-Falcon-Ridge-20Gbps,16369.html)

In particular has anyone been able to get any DP1.2 features to work with these iMacs? (MST daisy chaining, 4K displays, etc)

 

[DisMyMac]

iFixit did a teardown. Maybe they can tell us.

 

[CWallace]

iFixit did a teardown. Maybe they can tell us.

They didn't mention it, but someone asked the question of which chipset is on the system board on their site.