At least in my part of the world, the typical "bog-standard usable graphics card" is anything by Nvidia that costs roughly fifty pounds and is at the top of its respective range. E.g. the most expensive Geforce 7300 rather than the cheapest 7600. I recently upgraded my own machine, and I generally use it for things other than games. I bought a 7300GT from Dabs.com for about £46. In theory that's about $70-80, but it could also be $46, because computer manufacturers tend to exchange dollars for pounds on an arcane basis.
The 1650 is faster, but also £20-30 more expensive. The reviews I have seen tend to pit the 1650 against the 7600, which is much the same price; I cannot determine if there is a clear winner, they seem to be much of a muchness.
