Applied Micro shows 64-bit ARM server chip, ignites x86 debate
Applied says its ARM-based system-on-chip will greatly reduce costs for Web-scale and big data workloads
IDG News Service - Applied Micro lifted the curtain on its 64-bit ARM-based server platform at the Hot Chips conference this week and ignited a debate about whether ARM is the right architecture for the data center.
Pat Gelsinger, a former Intel CTO who is now president and COO of EMC, said he doesn't think ARM chips are right for servers. "I don't think the math makes sense," he said.
Applied disagrees, contending that for certain workloads, including big data and Web-scale cloud-computing applications, its server chips will lead to dramatically lower ownership costs, largely through reduced power consumption.
Applied said it's on track to ship samples of its system-on-chip, called X-Gene, in the second half of the year. It will eventually be offered in servers with 128, 256 and 512 processor cores, President and CEO Paramesh Gopi said in a presentation Wednesday.
Several vendors are working on server products based on 32-bit ARM designs, but Applied may be the first to release a server product based on the new ARMv8, whose 64-bit architecture is more suited to server workloads.
According to Applied, integration is key. Its SOC will be offered with eight or 16 CPU cores, packaged on the same silicon die as the I/O, networking and interconnect fabric. That's built into a small server module with up to 256GB of DDR memory.
"This has never happened in the history of our industry," Gopi said. "For once we're not talking about CPUs, we're talking about a complete server-on-a-chip platform, and that is going to change the fundamental equation" for the cost of server ownership.
Applied won't say yet how much power its platform consumes or discuss the speed of its CPUs, saying product announcements will follow. And while Gopi held up a server module on stage and declared dramatically, "This is real," another Applied engineer admitted later that the SOC was a mock up, since the company is still awaiting its first samples.
Still, Applied said it's on track to deliver the first parts by the end of the year, and it says they'll run software written for 32-bit ARM devices without compromising performance. It's platform will also support virtualization and enterprise-class RAS (reliability, availability and serviceability), it said.
Earlier in the day, Gelsinger said that while the shift to smartphones and tablets means ARM will dominate client computing -- "I don't see that changing any time soon, with all deference to my x86 roots" -- he believes the data center will remain "an all x86 world."
Asked what he thinks of analyst predictions that ARM will account for 25 percent of server shipments a few years from now, Gelsinger said he doesn't buy it. "I don't believe those numbers," he said flatly.
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