chaosblade
Unconfirmed Member
The HD5850 was discovered for £45 in an ex-display store. The plan is/was to get a CPU/mobo that could take advantage of the power of the card, but without needlessly spending too much on going higher, unless that will save money in the long run from only having to upgrade the GPU/CrossFire and not both. And the plan would be to sell the replaced parts of course.
With a view to run it for about 2 years, and then do a significant upgrade, would it be best to go i3-2120 now and then upgrade both CPU and graphics, or go strong on CPU now (costing £75 extra) and only upgrade graphics later. Staying with i3-2120 would leave it open for an Ivy Bridge upgrade in the future.
Bear in mind that I'm building this for a friend who is running on an Athlon 3700 and an X1800 or something, don't remember. So the cheaper option would still be a colossal upgrade.
Great deal on that 5850 then, go for it.
And on the CPU front, well, I guess that's pretty much up to you and your friend. The 2120 will be a huge upgrade from that old CPU, but as a dual core it's also not a very forward-compatible buy.
If budget is an issue now, you may as well go for the 2120, but you'll save money in the long run and not miss out on much performance by getting Sandy Bridge now. If OCing is involved, a 2500k is anticipated to last at least 4 years or so before it starts bottlenecking. Given that he's still using that clunker from 2005-2006, he doesn't seem to be much of an upgrader, so the better CPU might be a better option for that reason.
Also depends on what games he plays. For big, intensive games a better CPU is going to be an improvement right off the bat. If he mostly plays smaller or less intensive stuff it wouldn't hurt to upgrade down the line.
Also keep in mind CPU prices don't usually drop too much, even after they've been replaced. High end Ivy Bridge CPUs will probably cost as much 2 years from now as they will at launch, if not a bit more.