I have found the graphics card for me and these two are ones I want I have 300 pound budget but, I want to know am I getting my money's worth if I buy 290? Looks like an amazing card but what's the difference between 280x and 290 apart from VRAM?
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This is the difference between the two cards in terms of gaming performance: http://www.anandtech.com/bench/product/1068?vs=1041
If it matters to you the R9 290 is a lot louder than the R9 280X.
What chance of 280x cards dropping down to £230?
Don't know if this will help but i've gone from a 7970 to a MSi 290 and everything seems a lot smoother in games, could be a placebo effect though.
Not really had a proper play around with it yet but like I said it does feel much smoother than my 7970.
+50% Power Limit - 1075/1300. Pretty crappy clocker by the looks of things because if I go any higher it starts to artifact, i've not touched the voltage yet though so i';ve no idea how high I can go.