just wondering if SLI 9800GT will outperform a single HD5770 and if so what mobo would be a good one to get, has to also support an i5 661. because of Budget mobo can only cost about 150-160 max, and playing on a 23" screen if that makes any difference.
5770 would be a considerable improvement strictly in performance. it'll actually use less power, and produce less heat than a single 9800GT too as for sli with 2 9800s that is roughly a performance match to a gtx 275-if utilized correctly but you have a 23 in monitor and if power is not an issue than i would go with the 9800s in sli. a mobo for and i5 sli setup, i would go with this baby http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I can't say I've seen many benchmarks comparing Sli's 9800GT's compared to the 5770 but as a pair of 9800's should be somewhere between a GTX275 and GTX280, a 5770 only has DX11 but will not match the 9800's in high resolution gaming, ie 16 x 10 or 19 x 10.
Thanks very much for the input, im headed towards buying another 9800GT. Any ideas on what the best 150+-30 mobo , that can take an i5 661 CPU, also if it helps i will be using a 600w Antec Darkside PSU.
At the moment that's a bit subjective, for some it will be a must have feature regardless of how powerful the card is whilst some will only entertain the idea that only a high powered first generation DX11 card we be able to run at decent frame rates whilst still others will be sitting back waiting for a decent amount of games worth playing to turn up.