MOBO socket question

[Secundus]

Trying to build a budget gaming computer and had a question.
What is the major differences between socket 939 and 754. I know the 939 is better but by how much. I also know the 939 is going to be replaced shortly too. Just trying to figure out if I get socket 754 mobo and cpu will it be a huge downgrade from a 939 socket and mobo.

Was thinking of 754 mobo with a 64/3000 venice 754 cpu.

Thanks.

 

[Ste]

AMDs New socket M2, will be here in Maybe 1.5 to 2 years. So I would just go Socket 939 now as it is compatible with Dual Channel and 754 is not.