i'm a newb at this so this might be a stupid question but, i'm not sure which is the better choice here. i heard the nvidia 250's are better and it does have 256bit bus width but the HD 5450 has 2gb vs the 1gb of the GTS. Also, if the nvidia card is better, will it work with a standard dell dimension 9200 with XP? thanks for any enlightenment you might be able to provide on this matter.
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The GTS 250 is an outdated card that is powerhungry and only supports DX10. It fits in most standard ATX cases though. The only problem is the powersupply. My friend had to replace the PSU in his HP for his GTS 250 a few years back because it kept crashing.