The performance in either unit is still comparable despite the aluminum Rad fins.
I'm cooling My FX-8350 OC to 4.6Ghz with steady temps of
< 40C MAX at working loads and as low as
26C at Idle.
Swiftech is bulky as hell and just plain ol' ugly.
BUT, the fact that you can expand and add coloured coolant and clear tubing is pretty nice.
Back to matter at hand, The H110 and the H100I can both be installed into the C70.
If you are going with a 280MM cooling solution, then I suggest the Cooler Master Nepton 280L
Here
It offers the best performance I've seen in an all-in-one liquid cooler.
Linus did an H110 installation in a Vengeance C70 chassis
[video="https://www.youtube.com/watch?v=y0VfiDHgk4g"][/video]