This week, John Fruehe, AMD’s Director of Product Marketing for Server, Embedded and Firestream Products was asked if the company had set its sights on a special brand of Bobcat-based multi-core CPUs designed with cloud datacenters in mind.
His first response to the question was that, “It would be irresponsible for us not to consider every piece of silicon when determining what we are going to offer server customers. If we have what customers need and we can profitably bring that product to market with our OEM partners, then it makes sense to productize it.”
He recognizes, however, that “beyond power consumption, cloud customers want two other things—true server features and lower management costs… The Bobcat core, although an extremely efficient core, was designed for low power client solutions, so think like ECC memory and support for server Oss (though the AMD SR5600 series chipset) have not been figured into the product at this time.”
So as clouds grow and customers want to scale out rapidly, the Bobcat core, just like Atom, which is based on a single-processor system means that you get ultra low power but you don’t get the core density that is required in cloud environments, which certainly complicates this possibility.
Fruehe admits that there is not “100% clarity at the time about the needs of the cloud market because so much of it is evolving” but notes that AMD is getting serious making sure they have a viable product when they’ve…well, figured out what that product needs to be.
He says they will continue looking closely at the possibilities of both Bobcat and Bulldozer as core design points for upcoming system on chip products for cloud servers.
As Anton Shilov at xBit Laboratories noted, “while Bobcat does not have visible advantages compared to already available Opteron CPUs, AMD will continue to evaluate the micro architecture as a potential solution for cloud datacenters that demand the maximum number of cores.”
Shilov went on to note that it is clear that Bobcat processors “will provide lower idle power compared to AMD Opteron chips based on K10.5 or Bulldozer micro-architectures. But the big question is whether Bobcat chips will actually be able to work fast enough to provide decent performance. If those chips do not provide enough speed, then AMD’s clients will have to install more of them, which will mean that any 2W-3W per core savings may never be evident due to a high number of chips.”