Since last year AMD's had the FX-9590 as the top-end Vishera CPU that can top out at 5.0GHz with its Turbo Frequency, but initially this processor was only available to OEM system builds. Over time the OEM version of the FX-9590 became available to consumers while earlier this summer AMD launched a retail version of the FX-9590 that included the eight-core CPU with a closed-loop water cooling solution. Today we're reviewing this highest-end Vishera CPU to see how it compares to other AMD and Intel processors on Ubuntu Linux.