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R u thinking of geting a 4 core or 6 core xeon ?
5820k is fine for gaming too. I moved from a 4790k at 4.7ghz. Even at stock in not finding the 5820k to hold back gaming performance. I have done a bit of clocking on it to 4.5ghz, but haven't tested it a lot.
yes but lower end CPU should still have one. i have in my media center on a pentium k.
Any cpu with K need a better than stock cooler
You've answered your own question. Should they still have one? well no, they're completely insufficient. That's why Intel don't bother, as no stock sized cooler could handle a hex core.
They would need to make something far bigger and far more costly for a 5820k, so they leave that cost up to you.
intel gave a 92mm tower cooler with the 1366 hex core's that putout more heat, and a larger type top down cooler with 2011 x79 hex core cpu's
i think its more intel pinching penney's