There are none ,which comes with onboard graphics from nvidia , when AMD 64 is in question,i would suggest NOT to go for an onboard solution, but if you do wanna get something good .there is the xpress chipset from ATI which has an inbuilt x300 graphics core in the northbridge and the ULi southbridge,you can also upgrade to a xpress graphics card later on,
But the thing that you must keep in mind is that , the major benifit of having a AMD 64 is the onboard memory contrtoller , Direct Connect architecture as they call it , and if you use an onboard solution , the memory bandwidth and latnency is going to increase and give u lower performance , Its your call mate
