gts 450 can draw up to 219 watts... so no probably not unless the palit vertion you bought it more efficient than refrence design (palit makes a refrence and non refrence)
That is a bad power figure it is either a system power figure or who ever came up with those figures had to been stoned or drunk or both. 106-109 are the average load values for the card it's self. 219 is more or less the GTX 465 and the GTX 470.
Turns out that a GTS 450 512mb costs 100 dollars, GTS 450 1GB 120 dollars and HD 5770 512mb 120 dollars,but i kinda dont have extra 20 bucks,but the original question wasent about GPU choice but about power suply Frontier 450W 16A+14A.Any thought on that?