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PhenomII X3 720 Bottleneck 4870 CF?

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March 5, 2009 2:04:59 PM

Will the PhenomII X3 720 @3.1GHz bottleneck Crossfire 4870's?

if so, what about hybrid crossfire 4830+4870?
March 5, 2009 2:22:33 PM

many video cards today are bottlenecked my cpus, you will see an increase in perforamance until you go over 3.5ghz i believe.
March 5, 2009 3:54:44 PM

Also worth noting that if you crossfire a 4830 with a 4870 it will essentially downgrade the 4870 to a 4830 to it'll be the same as having two 4830s.
Generally best to crossfire matching cards.
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March 5, 2009 4:38:18 PM

I had a bottleneck with the Phenom x4 9850 OCed @ 2.96GHz with 2 9800GTX+ video cards. I had all sorts of stuttering and all when running over 2 accounts of Shadowbane in large group play.

I ran SB last night with the 4-cored 720BE and just 1 9800...and not a stutter one. Good stuff.

So I'd say you probably would since the 4870s are so much more than what I have.
March 5, 2009 5:32:34 PM

the microstutters known to be in ati drivers wont help either.
March 5, 2009 7:22:17 PM

shiftstealth said:
the microstutters known to be in ati drivers wont help either.


That doesn't give me much confidence in the decision I made to go ATI in my next build :lol: 
March 5, 2009 7:50:51 PM

Question 1: What resolution do you play at? Unless your on a huge monitor, (1680x1050 and up) dual GPU doesnt really pay off. Infact at 1680x1050 I would just get a 4870 1GB and enjoy. You only really need more at higher rez.

March 6, 2009 12:53:49 PM

Ill probably just add on another 4830 then, or just go with replacing the 4830 with a 4870 1gb. Considering the 4830 is all I have.

I'm only going for 3.1ghz because I'm playing it safe and I'm not gonna go extreme with the oc. I dont want to risk any trouble at all. I might go for higher once I get an aftermarket cooler this summer.
March 6, 2009 3:03:44 PM

well it gets to 4.3 actually but thats slightly past safe levels.

Also get a second 4830 if you play dual gpu supporting games since 2x4830 = GTX 285
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