Aside from the x86 monopoly that would create, I don't think Intel has much of value to AMD at this point other than the fabs (which aren't delivering). IMHO if Intel is failing, let them fail and others will buy the pieces in bankruptcy. This would probably benefit several other companies that could use 22nm and up fab capacity and someone could even pick up the x86 and graphics businesses.
BTW I think at this point the graphics business is more valuable. Even though Intel is in 3rd place there are many players in the SoC world that can use a good GPU. You can build a SoC with Intel, ARM, or RISC-V but they all need a GPU.