I have to buy a new workstation for one of my user who wants to modeling with very big database, I already post for the graphic card but I want to know what kind of CPU I got to buy. I check for the Intel Xeon and I7 processors or the AMD Opteron. I also check some benchmark and reviews. For my opinion, I will take a Xeon E7-8870 with 10 cores and 30Mb of cache but I want a second opinion cause it's not free!!!