4870 + 4830 xfire - Page 2 - Overclock.net

OJX · 03-10-09

Not worth it, sell the card.
Why have your awesome card downgraded to 4830 levels just to get Crossfire which isn't even supported in all games, and sometimes isn't very beneficial.

kurosu · 03-10-09

If it is only gonna work as well as 2x 4830, then you might as well sell the 4870 and buy a new 4830 because the 4870 will be going to waste! Just sell the 4830 and put that money towards another 4870, or just sell the 4830 and save the money. If you keep the 4830, the 4870 will be wasted because you may as well be using another 4830 in crossfire since it will only be running at that speed.

I hope that made sense.

Liability · 03-10-09

Quote:

Originally Posted by Elev8rSh0es

but since with my mods the 4830 outperforms a stock 4850 it will be like xfired 4850s??

Sorry, but your 4830 is not as a fast as a 4850. It only has 640 SPs compared to 800. It would take a massive clock speed increase to overcome that... One that you won't attain without heavy volt modding and possibly, LN2/DICE.

Elev8rSh0es · 03-10-09

Quote:

Originally Posted by grunion

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.

thanks for the benchies and cf info

Quote:

Originally Posted by OJX

Not worth it, sell the card.
Why have your awesome card downgraded to 4830 levels just to get Crossfire which isn't even supported in all games, and sometimes isn't very beneficial.

for the inches crossfire adds to my E-peen

gerikoh · 03-10-09

Quote:

Originally Posted by grunion

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.

well, i couldn't find a test there that has mixed crossfire.

i'm sure with xfired 4870s, it's possible to have different clock speeds and without the other getting to tune down.

but xfiring a 4870 and 4850 together is a different story. the main thing is the 4870 will tune down to ddr3 w/c is its advantage over the 4850(not to mention sp, and memory size in different models). so in the end, it's just like 2 4850s in xfire.

here's a sample
http://www.hardwarecanucks.com/forum...-review-5.html

cheers

Elev8rSh0es · 03-10-09

Quote:

Originally Posted by Liability

Sorry, but your 4830 is not as a fast as a 4850. It only has 640 SPs compared to 800. It would take a massive clock speed increase to overcome that... One that you won't attain without heavy volt modding and possibly, LN2/DICE.

excuse you but mine is heavily voltmodded and it does exceed a stock 4850 go through the thread in my sig the proofs in there

kairi_zeroblade · 03-11-09

dont expect that high unless your gonna use the 4870 as a primary card..its gonna pull your scores down a bit only..

**alexgheseger** · 03-11-09

Silly elev8r, sell the 4830 while you still can.

The way ATi and Nvidia are going at it, a 4870 will be like ~$130 pretty soon.

sgdude · 03-11-09

itll be like 2x4870 just sell the 4830 and buy a 4870

TheCh3F · 03-11-09

Quote:

Originally Posted by alexgheseger

Silly elev8r, sell the 4830 while you still can.

The way ATi and Nvidia are going at it, a 4870 will be like ~$130 pretty soon.

Alex put it best... Sell sell sell!

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4870 + 4830 xfire

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