I think I meant the 285K versus the 265K?You mentioned this before for the intel CPU:
"Air cooling the Intel CPUs (or any higher-end CPU really) will likely require some management of the power limits and the fan curves to achieve the comfort you're after."
I'm not going to be the one building it, I'll be asking OCUK to do it for me - so does this matter and be something that I should take into account when picking CPU?
The reason why is because I consider around 150 watts to the maximum you really want to run a decent dual fan tower cooler before the noise is a problem and while the 265K is recorded as 155 (fine), the 285K is 235. For a gamer it isn't a big deal because games don't run a CPU at 100%, but for long-run multithreaded stuff you do have the CPU pegged at 100% for long periods.
The other issue is that when the turbo kicks in for short periods, it can cause issues with the fan cycling, brrrrrRRRRRR, which is easily annoying if you're just web browsing, opening an application, or whatever.
In terms of: does it matter for you? It might, it depends on how much effort OCUK would put into customising the fan curve, since I don't know if that's something they would worry about in their testing, or if they'd just consider "CPU not throttling" to be good enough. It does depend on personal preference too, since not everyone cares about desktop noise.