should i update

clutchc

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If your SLI GTS 450 isn't suffering from micro-stutter, going to a pair of R7-260s in CF would probably be an acceptable upgrade.
http://gpuboss.com/gpus/Radeon-R7-260-vs-GeForce-GTS-450

But why not spend the same amount on a single R9-270X or GTX 760? You can then add another one of those later as finances allow and have a better system.
Btw, what CPU are you pairing the card(s) with? What motherboard? And the make/model of you PSU?
 

clutchc

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Solution