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Nvidia 9800GTX+ TRI SLI > 4870 Crossfire??

post #1 of 8
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The price points are pretty close, would the 9800GTX+ tri sli beat the 4870CF convincingly? I think the 9800GTX+ is going to be a great card and a great deal with great overclocking possibilities. I like the 4870 a lot but I really think the 9800GTX+ for $229 is going to be a winner.
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post #2 of 8
it would be close , i think the dual 4870 would take em out, but with your 680i the 98gtx+ tri is your best option.
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post #3 of 8
thats hard to say with the combined memory power, and it also depends on the application and how well it scales

but i would say the 9800GTX+ in tri solely because of the extra GPU
    
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post #4 of 8
3 really?
pairs always worked more efficiently...so would that be 166% of the card(s) power?
Cost effective would be the dual at 150%...with a good OC you save the bucks fore cooling and upgrades.
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post #5 of 8
Comparing 3 9800GTX+ and 2 4870's is not fair imo. I think a better comparison, for price concerns included would be 3 9800GTX and 1 4870X2 for the added performance and cheaper price tag.
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post #6 of 8
tri sli scales bad i bet you the 4870's are better
    
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post #7 of 8
I was going to go with TRI-SLI and 3 9800gtx until the 4870;s came out. I had the EVGA 790i ultra board and a pair of G92's.

The problem is that sli with two cards works very well. Add a third card and performance increases are below 10% across the board. Doubtful? do a google search of TRI-SLI'd cards. 3 x 8800GTX, ultra or 9800gtx show the same results. the new GTX 260 and 280 may scale better (that remains to be proven in anything other than vantage) but from what I have read, and I read everything I can find, its a no.

TRI-SLI is simply not going to provide much more than a few percentage points over dual sli.

If two 4870's can crush two 9800gtx + (which I think we all agree they can), how can an extra 10% really make that much of a difference.

also, the 9800GTX + are going to be selling for $230 each. thats $690. the HD4870's are selling for $310 each = $620 so there is a $70 difference in price.



Also, you have XP....

You need Vista for TRI-SLI so add another $120

Now we are up to $190 difference.

Crossfire works fine in XP.

Not to mention your power supply will not handle 3 9800GTX+.
Edited by Robilar - 7/3/08 at 9:33pm
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post #8 of 8
You can read this article where they compare 9800 GTX vs. SLI vs. 3-way SLI. vs. Quad SLI and it seems like you have to go with 2560x1600 before you see any improvment from SLI vs 3-way SLI and even though it´s not much.

and here they compare 9800GTX+ SLI vs 4870 CF and imo I must say that it´s close between those cards.

and you have to consider what Robilar and the other guys have mention also.
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