Originally Posted by jesusjellybeans
Its supposed to have better thermal performance. Do you guys think it's really worth the wait? I don't really give a crap about it being 'newer' but I don't want it to melt through my floor like a bucket of thermite.
That temperature stuff works differently than you think. The sensors that show the ridiculous temperatures are inside the CPU cores. The heat gets trapped inside there and does not get out. This means the improvement people are talking about is not on the outside of the CPU... the old 4670k isn't hotter on the outside and it does not melt through the floor. Instead, you will be able to more easily overclock the new CPU because your cooler will be better able to get the heat sucked out of the cores.
I delidded my 3570k. My overclock that I configured in the winter started crashing when summer came around. I flipped out when that happened. I was pretty scared about that delidding stuff and would not want to do it again if I have a choice. After the experience, I was actually prepared to buy a $200+ LGA2011 board and 4820k style CPU the next time, no matter the money.
You asked if you should choose 4690 (without k). If this means you don't care at all about overclocking the CPU, just buy that. You can then also save some money on the board as you don't need Z97, but I don't know if the H97 etc. boards for that CPU are out already so that means you'll have to wait anyway unless buying 4670 and B85/H81/H87 board.
4690k might be more expensive than 4670k so that could be annoying.