A document published on AMD's UK website gives model number and specification details, but no pricing, of the new Piledriver core based Opterons. Like the previous generation 6200 series the chips are Multi-Chip Module (MCM) designs bolting together two Vishera die's via their built-in HyperTransporT 3 interfaces.
The datasheet indicates the new top performance Opteron offers up to 37% more peformance over the previous generation (click to enlarge):
The outgoing Bulldozer based line looks like this:

Across the board the performance increases are largely from clock speed, which come from AMD's work to improve power consumption as seen in the desktop lines - improved turbo core and better front end efficiency.
With drop in upgrade compatibility, it's down to OEM compatibility matrices and BIOS updates as to whether socket G34 servers can use the new chips or not. Refreshing a server with a new set of procs and memory might be a lot cheaper than buying all new boxes and migrating over.
The datasheet indicates the new top performance Opteron offers up to 37% more peformance over the previous generation (click to enlarge):
The outgoing Bulldozer based line looks like this:

Across the board the performance increases are largely from clock speed, which come from AMD's work to improve power consumption as seen in the desktop lines - improved turbo core and better front end efficiency.
With drop in upgrade compatibility, it's down to OEM compatibility matrices and BIOS updates as to whether socket G34 servers can use the new chips or not. Refreshing a server with a new set of procs and memory might be a lot cheaper than buying all new boxes and migrating over.
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