Originally posted by: Fox5
Depends on how much more you're paying on a system. If >$1000, then penny pinching doesn't make much sense, otherwise that $100 to $150 more is a significant cost of the system. (and for entry level, it's way more than that, since you can just overclock both platforms to get near their max performance anyway, it's like $100+ difference on the cpu, $100+ difference on the motherboard, and $40+ difference on the memory if going ddr2 to ddr3, so you're looking at more like $250-$300 more)
I don't know about you but I think this problem is easier if you normalize some of the costs.
The cheapest LGA1366 on newegg is $180. It's a pretty good board. Gigabit network, 2 video card slots, 12gb ram supported.
A somewhat comparable AM3 board is $90. Gigabit network, 3 video cards, 16gb ram.
Alright so the Intel board is $90 more. If you normalize the motherboard and ram costs (they use the same ram), CPU costs then look like this:
Phenom II 955: $245
i7 920: $280 + $90 motherboard tax = $370
So there's the question. If both platforms could use the same motherboard, would you pay $245 for the Phenom II or $370 for the i7?
edit;
They both seem a bit unreasonable, IMO. Is the X4 955 really $100 better than the X3 720? Is the i7 worth another $125 on top of that? I would probably just get the X3 720. That more than $200 difference between X3 and i7 would be better spent on either a second video card, or maybe just save it for later upgrades.