Conclusion
In recent games and resolutions up to 1600 x 1200 there is nearly no difference. One really needs high resolutions to see a performance increase in benchmarks. Therefore you can ask yourself it the 1 GByte model makes sense or not because when you want to play very high resolutions you would preferably buy a 4870 oder a 4870 X2.
Because of the fact the Gigabyte model come overclocked from the factory, the performance in general is good. Also the Zalman cooler is quiet and therefore effecient. With a price of CHF 259.- the difference to the 512 MByte Model isn't that big. So if you want to buy yourself an all new card the Gigabyte GV-R485OC-1GH should be considered but if you plan to upgrade your existing 512 MByte 4850 to play very high resolutions you should go for a 4870 oder 4870 X2.
The card is available at brack.ch für CHF 259.-
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Author: jl.hadey@ocaholic.ch
Revised by: m.buechel@ocaholic.ch