Need advice

the gtx 550 ti is slightly faster but the hd7750 consumes a lot less power.

tbh both of them would struggle running the newest games on high settings you'd be better off going with a hd7770/ hd6850 or the gtx560 is your budget supports.

http://www.bit-tech.net/hardware/2012/02/15/amd-radeon-...

Those two GPUs are kinda limited today. How much are you willing to pay?With $260 you could get a GTX 570. http://www.newegg.ca/Product/Product.aspx?Item=N82E1681... or just get a GTX 560 for around $180. http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...

i am thinking to buy gtx560.but i don't get it.why wood something cost 130dollars if cant support today games?

$130 isn't much for a GPU today. I would strongly recommend you buy a GTX 560.

It's not that they can't support the games, it's just you could play BF3 on, maybe, Medium Graphics. With a 570 (quite possibly 560) you could play Skyrim and BF3 on Ultra. It just depends on what kind of games you're gonna play.

well,i decided to do as you told me and i'll buy gtx 560.well maybe you're right ,130 isn't to much but theres better gpu for lower prices then the exprensive ones.people always think expensive is better.maybe there're right.

Most of the time, more expensie is better. i wanted to get a 680 at first, then decided it wasn't worth it, so i got a 570.

the newest one,if i am right is 690,but i'll be satisfied with 560.just want something what could play games at high or medium settings for few years.thank you for telling me what to buy.now i know what i'm going to do.only there's still one question i my head.will it work with my motherboard?

What motherboard are you using? As long as it has a PCIe 2.0 x16, you'll be fine.

I post another thread about that and i just got an answer that it will work fine.
http://www.tomshardware.co.uk/forum/360571-15-compatibi...

So i don't need to worry about anything else any more.