Go on your old PC? (Darksiders: Genesis)

I'm a fan of Darksiders, but my old PC doesn't pull almost nothing, although at one time it was good. I certainly understand that even the minimum little system is slightly higher than iron in my tub, but not infrequently there have been cases when in the same conditions I was able to play on minimum or low-medium settings (of course not full hd). It would be interesting to know the opinion of people, because of my relatively weak Internet and injure yourself while the download speed would not if it's in vain. Here's my hardware:
Amd athlon x4 quad processor 3.2 Ghz, nvidia geforce gt640 1 Gb, 8 Gb Ram. Wait 3 months until the next comp is very painful