Ok, so I made a post just today asking about if a Gigabyte Radeon HD 6450 (here: http://goo.gl/MuxQl) will work with my pc (here: http://goo.gl/5rxbQ). All the replies I got were that I will be fine so I was going to get it. Now I checked the pages again and something else caught my eye. It's also a 6450 but this time it's from MSI and has 2gb as opposed to 1 which is in the Gigabyte one. I was wondering if my computer could support this MSI one as it has more memory. They are also the same price it seems like the better deal.
My power supply:
Internal 250W (100-240V)
Form factor: internal ATX
Total Wattage: 250W
Nominal input voltage range:
Dimensions: 150mm x 140mm x 86mm (5.9 x 5.5 x 3.4 inches)
As for the rest of the components I didn't change anything except upgrade form integrated graphics to a Visiontek Radeon HD 4350
The increased memory will have no effect on the power draw. In fact, the 6450 isn't powerful enough to make use of 1GB of VRAM in the first place, much less 2GB. And even if it could access all of the memory, the resolutions required to get it there would completely crush the card to begin with.
That was a very long winded way of saying yes, you would be fine with either card.
Yeah, that's fine then. That's about as much power as you can get for $50. But if you could spend a little bit more money, you could upgrade to the 6670, which would be a big boost over the 6450. The 6670 retails for $60-70.