New to bitmining, planning on buying 2x Gigabyte Radeon 5850 ?

[c0ikws]

Hello all! I started bitmining this weekend and I thought my ratio of Mhash/s sucked so I did some research and found that I would get much better result with a Radeon 5850. I actually have a Evga 560 fermi and do with it 75 Mhash/s. Would it greatly improve my Mhash/s with 2 Radeon 5850 instead ? Would my videogame performance decrease in comparison to the Geforce 560? I found 2 used Radeon 5850 for 200$, is it a good price ? Thank you for helping me out !

[2GOOD]

5850s are very efficient and you will get around 350-370MH/s per GPU further more it's totally power inefficient to mine with nVidia.

Just keep in mind that you will benefit from the new speed for a month or so... if the ASIC hardware is ready in December + price per block at 25BTC GPU mining will be worthless.