I7-780 cpu lowest price

Intel sockets: 1366 > 1156 > 775

I figure you mean the I7-870 which is on the 1156 socket, the next best socket would be 1366.

Best price online will most likely be from newegg.

Assuming you mean the i7-870, don't get it. It isn't worth it over the i7-860, which is several hundred dollars cheaper.

If you want hyperthreading but you don't want to spend i7 920 / LGA 1366 prices then get the Xeon X3440 or X3450 They are cheaper than the i7 860, overclock better, and having hyperthreading.

Thanks for all your replies.

I'm new to the new Intel chips. Yes I meant upgrading from the i7-860 to the i7-870. I realize there is a price difference, but the question is also related to performance since the 860 is 2.80 Gz and the 870 is rated at 2.93 Gz.

I'm not building my own system, but have purchased one from a vendor with an 860 chip. I just wondered since it has the 1156 socket, is it worth it to go with an 870.

It's at the price of 188 pounds in some asian contry.
do u care about the three channal function?i7 920 have but 860 have not.
it's just 18 pounds more .I guest it's valuable

You can overclock both the 860 and 870 to basically the same height, if you don't overclock then the 870 will not give you much of a benefit at all, especially for the price.

yes, I agree

Thanks. I had the same feeling, but there are many more experts here than I am. I'll use my scheckles for something else.

Thanks,