450 GTS to a Zotac 550 ti Amp overclocked edition

aceking22

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Before anyone replies with "go with a 460 instead" please understand i am planning to build a gaming PC about 6-9 months from now. Replacing my psu in my &^%$ gateway desktop is not a option for me at this point.

As for the question, I currently have a 450 gts http://www.newegg.com/Product/Product.aspx?Item=N82E16814130663 and looking to go with a Zotac gtx 550 ti AMP overclocked edition http://www.newegg.com/Product/Product.aspx?Item=N82E16814500194&Tpk=550%20ti%20amp. Is it realistic to expect a 10 fps increase with this new card or am i looking at a minimal gain of 4-5 fps ?


The only games I will be playing for the next several months or so are, in order

1. Star Wars the Old republic ( This is the most important)


2. Battle field 3


3.Skyrim

 

aceking22

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So gaining 10 fps more is not a possibilty with this card because that is what I was aiming for. Right now I am hitting mid 30's in most games at my selected setting and would like to be in the mid 40's.
 

aceking22

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Like i said before replacing my psu is not really a option for me at this point so it would have something that my 400 watt psu can handle. Currently i have had no issues with the 450 gts and my current psu.
 

aceking22

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Is the 6850 a superior card over the 450 gts and would it provide me with the 10 fps increase I am looking for ? Where does it stack up with Nvidia , what Nvidia card is it on par with (460?!) ?

This card http://www.newegg.com/Product/Product.aspx?Item=N82E16814150515 shows a recommended PSU of 500 watts despite only requiring 1 6 pin connector which is odd. Most higher end cards with a 500 watt psu requirement usually list 2 6 pin connectors. Could i get away using this despite my 400 watt psu ?
 
The 6850 is as fast as a GTX 4601GB. Of course it depends on the application as to which comes out on top. Keep in mind that furmark is a bit of an unrealistic test in that it represents the worst case. 25W matters when you don't have much to work with, but a resonable build with a single 6850 isn't going to stress out a decent 400W PSU unless you try to stress it with both Prime 95 and furmark at the same time. My system with a single 5870 (which uses alot more power) and my 955BE at stock drew 400W from the wall testing it with furmark and prime 95 on 3 threads and far less the rest of the time :D