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Old 03-10-09   #1 (permalink)
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Default 4870 + 4830 xfire

ok so i have a sapphire 4830 that was going to be sent off for rma and i have a HIS 4870 512 on the way and when the 4830 got back i was going to crossfire them to see what performance increase i would get and possibly sell the 4830 if the results were less than spectacular

BUT today my cousin stopped to see us before he goes back to florida in the morning and he offered to buy the card for almost what i paid for it but the deal leaves tomorrow

so i have looked quite a bit and havent really found any results on a 4870+4830 so does anyone know if the performance increase is worth hanging onto the 4830?
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Old 03-10-09   #2 (permalink)
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It will work. You could see an improvement over a standard 4870.
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Old 03-10-09   #3 (permalink)
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mixed crossfire works and scales as it logically should.
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SLI connectors, lol?

Trolling at its finest by Evga / Nvidia.

Hey why dont we just slap one of the biggest chips out there with one of the most renamed chips out there just so we can troll ATI b/c they do not have PhysX.

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Old 03-10-09   #4 (permalink)
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it's just the same as xfiring two 4830s. but it's still an improvement over a single 4870
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Potential customer: What is the meaning of life?
nVidia representative: PhysX, as seen in next-gen games like Batman:Arkham Asylum, PhysX makes your g200 based card BETTER than the 58XX series in all aspects. You'd be an idiot to buy ATI when you'd be forfeiting physX


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Old 03-10-09   #5 (permalink)
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Quote:
Originally Posted by gerikoh View Post
it's just the same as xfiring two 4830s. but it's still an improvement over a single 4870
thats what i was thinking cuz the 4870 will only run as fast as the 30...
dont hold me to it but i think there are few ppl that are xfiring two 4830s and are great performance
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and i just realised you have a p4, and a 3650, maybe that's why you don't like crysis

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Old 03-10-09   #6 (permalink)
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Quote:
Originally Posted by Bellatrix View Post
It will work. You could see an improvement over a standard 4870.
but enough of one to warrant keeping the card

Quote:
Originally Posted by gerikoh View Post
it's just the same as xfiring two 4830s. but it's still an improvement over a single 4870
but since with my mods the 4830 outperforms a stock 4850 it will be like xfired 4850s??
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Old 03-10-09   #7 (permalink)
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yep. the logic for xfiring is, the higher specs tune down with the lower specs, and it's the lower ones that gets doubled.
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Quote:
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^^ Yeah, pushing non-sensical answers = sarcasm


Potential customer: What is the meaning of life?
nVidia representative: PhysX, as seen in next-gen games like Batman:Arkham Asylum, PhysX makes your g200 based card BETTER than the 58XX series in all aspects. You'd be an idiot to buy ATI when you'd be forfeiting physX


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Last edited by gerikoh : 03-10-09 at 06:20 PM
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Old 03-10-09   #8 (permalink)
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Quote:
Originally Posted by gerikoh View Post
yep. the logic for xfiring is, the higher specs tunes down with the lower specs, and it's the lower ones that gets doubled.
so having a voltmodded 4870 will be useless as its just lowering itself to the 4830
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Old 03-10-09   #9 (permalink)
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Quote:
Originally Posted by Elev8rSh0es View Post
so having a voltmodded 4870 will be useless as its just lowering itself to the 4830
That's the idea... your 4870 tunes itself down to run in sync with your 4830. That said, you'll be wanting to focus on your 4830 overvolt/cooling/overclock as it'll be the limiting factor
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Old 03-10-09   #10 (permalink)
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Quote:
Originally Posted by gerikoh View Post
it's just the same as xfiring two 4830s. but it's still an improvement over a single 4870
Quote:
Originally Posted by XxG3nexX View Post
thats what i was thinking cuz the 4870 will only run as fast as the 30...
dont hold me to it but i think there are few ppl that are xfiring two 4830s and are great performance
Sorry guys, not true.

The only thing that will scale down is memory size, only if you are mixing cards with different amounts.

CF is different than SLI in that no card slows down, they just render their frame at their respective speeds.
You can run each card at whatever speed they can reach.

I CF'd a 4870/50 together results were not bad at all, results here.


Oh yeah

I'd sell the card, put the $ toward another 4870.

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