I'd probably go with the 5770. The 5750 might be a better option if your really worried about your PSU. Its TDP is only 76W, and it has the same performance as the stock GTS450. Either of the cards should be fine, pick the cheapest.
The 5770 is a lot better in performance than the GTS450 yet they roughly use the same amount of power.I'm still reccomending oyu go with the 5670 or 5750.It's not good to run a PSU at it's maximum.Over time it will decrease it's life expectincy.
hmmmmm.Well I think 5770 would be better for me.as it is cheaper and also better than 450 in performance.I am going to play games not more than 2-3 hours a day,so I don't think it would be a problem or would it create?
Well, 2-3 hours per day every day may end up in issues if the 5770 is maxing out what your power supply can output. That being said, it's why purple stank suggested in getting a 5670.
Depending on what your resolution is, the 5670 should manage most if not every game at 1280x720 with 4xAA+/1680x1050 with 2xAA.
It's MW2, but bascially you can see that with the game a 5670 can do 1920x1080 @50fps. With Black Ops, you'll get around the same performance.
So, expect 30fps+ at 1920x1080 for most games without any AA. With AA you may go down 5-15fps, so around 30fps.
If you've got the cash, I'd get something better then the 5670. 5750 if you don't trust your PSU or the rest of your system is weak, or the cheaper of the GTS450/5770. (or get the 5770 if you want the best performance.)
5770 is better than any of them.my pc has 375w power supply and it can have maximum of 150w card power.I want to know if I buy 5770 would it be a problem.Its consumption is 106w but would it overclocked?
I'm sure it is possible to for your PSU to run a 5770 but all i'm saying is that it's not a good idea to run a PSU at it's maximum,it will reduce it's life cycle.And if for some reason it does fail it could take other things with it than just the GPU.I'm reccomending you get the 5670 or 5750 because it's better to be safe than sorry.
I'd also suggest going with the replacement cards for the 57xx series.The 6750 is the replacement for the 5750 and it's a little better at a few things,mainly crossfire scaling and tesselation,but it's the same price as th 5750.
well i dont think 6750 is available in my country..and gts 450 is has 108w power so I am not gonna choose it..so 5750 looks better...
can you please send me a link which has price list as well as power consumption.