Video Editing and the new iMac

[Cinemagic85]

My company's editing needs:
- Preview non-rendered 1080p in Final Cut Pro X, After Effects, Speed Grade without lag
- Stream SD previews to clients through google drive

I would like to know if the following setup will handle my company's editing needs? And also how many composite layers I can use at one time without lag? Here is the hardware I'm considering:

iMac 27" (2012)
3.4GHz quad-core Intel Core i7
32GB (four 8GB) of 1600MHz DDR3 memory
768GB of flash storage (for programs only)
NVIDIA GeForce GTX 680MX 2GB
Western Digital Thunderbolt Duo 4TB (for raw footage)
Airport Extreme base station used with AT&T High Speed Elite 6.0 Mpbs Downstream, 786 Kbps Upstream.

 

[MacOG728893]

If you're going to spend that much, you can definitely get more raw power out of custom build. But yes, overall, this should tackle everything you mentioned fairly well.

If I had 3K-4K constantly lying around, I would own the exact iMac you listed and custom built PC, but that's not going to happen.

The new iMac is badass piece of hardware, but it will definitely come in at a steep price point.