Answer to: Intel i3 replace to Intel Xeon X3470I successfully upgrade my iMac11,3 to a Xeon X3480. Jups, XEON processor for iMac. The only issue is that it doesn't show in the System Profiler. Making sure that the processor fits the same socket and matches the same TDP should be enough. It's my 2nd CPU upgrade and everything works flawlessly. I also followed the Upgrade iMac Intel Core i3 CPU to Core i7 Guide.