I have a athlon x2 right now and I was debating going up to the operton, it has a bigger core, but is there any other differences. I use my pc for everything from encoding to playing games.
Well from what i've heard Opterons overclock further than Athlon X2's and any dual core opteron has double the L2 cache as your Athlon X2 3800+. but its up to you and how much your willing to spend cause if you can you should get a dual core opteron.
heres a compairison on what you have and what you should get