ouch yea
its just bad at any reasonable settings. the other guy was setting the graphics so low that its just too ugly to play
even with multi thread support team fortress 2 on a lower end core 2 would dip into yellow framerates in busy areas. Big difference between silky smooth and getting by.
How was I setting the settings too low?
1) The res is completely playable @ 1680x1050. 1280x800 is a fair bit lower for optimal performance, but judging by my benchmarks I can probably game comfortably @ 1440x.
2) Textures were on HIGH, Specular/Normal map which don't make a huge difference in the first place were on low. I'm sure I could turn them up I just choose not to to stay competitive in online MP, I haven't really tinkered extensively with the settings + frame rates at all.
either way I'm clearly getting averaging above 50 frames at both 1280x800 + 1680x1050 by turning down some "cpu-related settings", so yes, the game is playable to say the least. My KD jumped from a horrible .8 (first entry in CoD series for me) to a 1.8 after switching from a HP dv2 laptop to my current (6+ year old) desktop solution. A lot of that was due to higher consistent frames. I haven't even really tinkered to with the settings to get the highest visual quality/frame rate combination because I haven't even bothered to since it's OK for me now.
I'm not expecting anything amazing - I've played the same game countless times on my friend's GTX260/quadcore rig and the experience is similiar, obviously he is able to turn on vsync so that makes it better + all the eye candy and stuff. But that's not the point.
The OP asked whether or not you people could possibly play games ("on low") on their aging dells with HT P4s with the addition of cheap AGP graphics cards around the 3650 level, and while my 4650 is a tad better, the answer to that is still YES, THEY CAN. I"m using an aging COMPAQ thats at least 6+ years old. You can even turn the settings up (Read: high/low/med combination) on certain modern games.