First look: Dell Opteron server cranks up the cores with AMD 'Interlagos'


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New 16-core AMD Opteron 6200-series CPUs in the Dell R715 bring huge bang for the buck to wide virtualization workloads, but not until your OS supports it

It's an odd juxtaposition. The Dell PowerEdge R715 sits in a rack just below a recently decommissioned 2U, two-socket server that cost about as much when it was new five years ago. The difference? The older server has a total of two CPU cores, one per processor. The R715 has 32 cores, running at the same clock speed. If that's not progress, I don't know what is.

The R715 has been around since February (see InfoWorld's review), so strictly speaking, it's not a new server version. What's new: the R715's twin 16-core AMD Opteron "Interlagos" CPUs and support for 1,600MHz DDR3 RAM. Best of all, existing R715 systems can be upgraded to support the new chips with nothing more than a BIOS update. Otherwise, Interlagos is a drop-in replacement for Magny-Cours.

[ Also on InfoWorld: Stress test: AMD Opteron Magny-Cours versus Intel Xeon Nehalem-EX | Virtualization shoot-out: Citrix, Microsoft, Red Hat, and VMware ]

Like Magny-Cours before it, Interlagos promises to bring unbeatable price-performance to heavily multithreaded workloads such as virtualization. It costs considerably less than its closest Intel counterparts and offers twice the cores of the leading Intel chip. However, Interlagos is based on a new core architecture that is not yet supported by a number of popular operating systems (more on that below).

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