Hopefully a bit future-proof
One M.2 SSD for Win 10, and the other M.2 SSD for OS X El Capitan
Primarily built for grading with Davinci Resolve, hence the choice of Titan X over 980 Ti (additional 6GB VRAM), plus I plan to add another Titan X later in the year. As a gaming rig it's no slouch either
Successful dual-boot installation. Overclocked CPU to 4.5GHz (recognised by both OSX and Win 10), and flashed GPU bios to get 1291 MHz (it was already 1190 MHz) and memory 1950 MHz, also recognised by both OSX and Win 10.
Push-pull fan configuration for both the GPU and CPU. 9 fans in total.
Thunderbolt port works, outputting to a Blackmagic Design Mini Monitor I/O box, which in turn outputs to an Eizo CG247 calibrated reference monitor (via HDMI) and a Blackmagic Design Mini Recorder (via SDI), which connects to the iMac via Thunderbolt for scopes.
Wifi, Bluetooth, Ethernet, etc. all work fully on both set-ups. PS3 controller automatically recognised and functions via Bluetooth dongle.
Both M.2 drives give @ 2.5GB/s read and 1.5GB/s write speeds. Both OSX and Win 10 fully boot in less than 10 seconds.
Audio took a while to work with the Hackintosh, but eventually full multichannel HD was achieved.
Despite the flashed GPU bios, the Titan X still runs faster on Win 10 than OSX. Cinebench score is @200 fps in Win 10, but only @150 fps in OSX.
OSX Geekbench v3 is @ 28200 multicore 64bit.
On Win 10 the GPU is still not quite 4K ready, but not far off and is very stable. Struggle to get temps over 60 Celsius, even when benchmarking Unigine Heaven 4.0 or Shadow of Mordor.
Gaming works great, and I use my 120" screen and 1080p projector for that, along with a 9.1 sound system (5.1 with an extra speaker on top of the surround speakers).
Hackintosh took a full 7 days to properly learn and implement, but it's a valuable set of skills and I've quite the machine to show for it. Further down the line I hope to add another Titan X, more RAM, and storage by way of the additional 3.5" bays (5) and SSD slots (3).
Very impressed. The extra cache really helps, and files up to @4TB transfer almost instantaneously, before normal speed of @ 180MB/s resumes. A little bit pricier than a regular 4TB hard drive, but well worth it IMO. I foresee ordering more down the line.