Yeah...though in BF3's perfoverlayvisible graph my 870s line is well below my GPU line whereas some folks with SB chips and similar GPUs I've had test have them pretty much synched which is what you want. This is just one game though and once there is better driver support and I can turn up the eye candy to put more load on the GPUs the disparity could lessen.
Yep, and BF3 is pretty much one of the most CPU intensive FPS. Now if we're to talk about games based on Unreal 3 engine, a Q9550 at 4 Ghz
will drive off even a 6970 CF setup. I know because I had a X4 975 before, which is slower than Yorkfield per-clock. Going from X4 975 to i7 870 didn't yield in much gains, so I went and got an X58 UD9 from eBay.
And the "best" is apparently this i7-880 though I don't know anything else about it at this point. Unlocked multi as on the 875 is always nice but usually only a real benefit with subzero benching. Outside of that, the 875-K is just another 870 under the hood.
870 is limited by bCLK. On the Ibex Peak platform, you both need a high-end board like a P55 UD7 and luck to go over 4.3 with a 870. With the 875k though, you can up the multi when you hit 200 bLCK (4.2 Ghz). That can get you in 4.5 Ghz range. So yes, the 875k, although the same chip, OC's higher due unlocked multiplier.
"Johhny Doe
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Re:
870 vs 875k Saturday, July 30, 2011 11:32 PM (permalink)
Test whether уou can push it or not via the multiplier. If the mobo is limiting уou at 200, and if his chip is good enough (it should be), then уou'd be able to go beуond 4 Ghz with sufficient cooling. It maу be worth it.
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rankin
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Re:
870 vs 875k Sunday, July 31, 2011 6:02 AM (permalink)
875k hands down you can easily get 4.5-5.2ghz on them with a decent cooler and roomy case. even with turbo boost enabled they are insanely fast. my younger brother has one @ 4.8ghz for atleast 9mnths now powering tri sli 470s and tripple monitor with a few other bells and whistles on a p55classy board from EVGA, the things a beast..
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Sleepee
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Re:870 vs 875k Sunday, July 31, 2011 9:04 AM (permalink)
Just making sure you knew, haha. What the others have said cover the main reasons to switching to an unlocked chip."
