Err.. What are you asking?
If you get a 4850 and crossfire it with the 4830 you have now, you'll still only have 4830 crossfire speeds.
If you get a 4850 and crossfire it with the 4830 you have now, you'll still only have 4830 crossfire speeds.
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I could be mistaken but I think you're wrong. Xfire is not the same as sli, and it doesn't down clock the higher (unless they have different kinds of memory, gddr3, gddr5, etc.) but each unit can process data at their own set clock speeds. 4850 and 4830 both having gddr3 should mean they can do nothing but help each other out.
I personally have xfired a 4850 with a 4830 and there was most definitely an increase in performance, though not huge as the power difference between the two isn't all that huge to start with at same clocks.
Originally Posted by Drakan290  If you get a 4850 and crossfire it with the 4830 you have now, you'll still only have 4830 crossfire speeds. |
I personally have xfired a 4850 with a 4830 and there was most definitely an increase in performance, though not huge as the power difference between the two isn't all that huge to start with at same clocks.
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Yes, I know I didn't explain it in detail, but SLi and Crossfire work similarly.
Crossfire will not drop the clocks in a conventional sense, but since Crossfire splits rendering the screen vertically, meaning, one card does the top half, one card does the bottom half, the faster card will render faster, but will have to wait for the slower card to render the bottom half before the entire combination will display a frame...
It gets complicated, and there are differences between SLi, where the two cards have to be the same model... But they are basically the same. If you want equal performance between cards, you should get the same model card.
Originally Posted by Pao I could be mistaken but I think you're wrong. Xfire is not the same as sli, and it doesn't down clock the higher (unless they have different kinds of memory, gddr3, gddr5, etc.) but each unit can process data at their own set clock speeds. 4850 and 4830 both having gddr3 should mean they can do nothing but help each other out. I personally have xfired a 4850 with a 4830 and there was most definitely an increase in performance, though not huge as the power difference between the two isn't all that huge to start with at same clocks. |
Crossfire will not drop the clocks in a conventional sense, but since Crossfire splits rendering the screen vertically, meaning, one card does the top half, one card does the bottom half, the faster card will render faster, but will have to wait for the slower card to render the bottom half before the entire combination will display a frame...
It gets complicated, and there are differences between SLi, where the two cards have to be the same model... But they are basically the same. If you want equal performance between cards, you should get the same model card.
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sad to say but no
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http://www.hardwarecanucks.com/forum...-review-5.html
http://www.digital-daily.com/video/r..._hd_4870/print
Originally Posted by Pao I could be mistaken but I think you're wrong. Xfire is not the same as sli, and it doesn't down clock the higher (unless they have different kinds of memory, gddr3, gddr5, etc.) but each unit can process data at their own set clock speeds. 4850 and 4830 both having gddr3 should mean they can do nothing but help each other out. I personally have xfired a 4850 with a 4830 and there was most definitely an increase in performance, though not huge as the power difference between the two isn't all that huge to start with at same clocks. |
http://www.hardwarecanucks.com/forum...-review-5.html
http://www.digital-daily.com/video/r..._hd_4870/print
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