Strange Nfs Rivals 30fps solid with r9270x on my rig but with r9280x fps drops 19 to 20 to fps

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Mahesh6565

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May 23, 2014
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Intel core 2 quad q8400 2.66ghz
6gb 1333mhz ram
AMD R9 270x 2gb Card
On the above setup i got 30fps stable on NFS rivals . But i upgraded the graphics card to r9 280x 3gig
Intel core 2 quad q8400 2.66ghz
6gb 1333mhz ram
AMD R9 280x 3gb Card
now i get fps drops worse then i got with r9 270x . I Dont Understand , all other games work ok even witcher with ubersampling i get 30fps , with out ubersampling i get 60 fps ??? .
 
Solution
unknownofprob
the bus is fine, even if it were running in X8 or X16 mode.

A current i3 4130 is better then your CPU, and I do not place bets on your CPU that it is "sufficient enough". Since you have these cards, I would suggest you get a new CPU/Motherboard and also power supply.
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unknownofprob

unknownofprob

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Oct 3, 2013
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the bus is fine, even if it were running in X8 or X16 mode.

A current i3 4130 is better then your CPU, and I do not place bets on your CPU that it is "sufficient enough". Since you have these cards, I would suggest you get a new CPU/Motherboard and also power supply.
 
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Solution
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Mahesh6565

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May 23, 2014
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i am powering the card with a dedicated power supply which can handle up to 600w it has one pcie 6 pin connector and i use dual molex to 8pin connecter for the 8pin and i host the psu outside of the case , whine a 500w psu is powering the rest of my system . i dont know about the wattage per rail and all that stuff
 
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Mahesh6565

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May 23, 2014
38
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4,540
i am not a resourceful guy , i am saving money for new cpu mboard ram and psu , but i think its going take a while :( , thx any way you been most helpful . i don't think its the psu because it has nothing els connected to it except the gcard , the recommended psu for this card is a 750 watt psu , which they might have recommended considering the full load all components in the system connected to a 750watt psu but here the card has a 600watt psu just for itself ???
 
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