AMD has started volume shipments of its "Seattle" Opteron A1100 ARM processors, designed for high density server systems. First announced in 2014, the processors have four or eight 64-bit A57 ARM cores running at 1.7 or 2GHz. The chips have up to 4MB of level 2 cache (organized as 1MB per core pair), 8MB of level 3 cache, and two memory channels supporting both DDR3 and DDR4. With 32GB registered DDR4 DIMMs, the chips support a total of 128GB RAM. The chips also include a secondary A5 processor for system control and a coprocessor with accelerated encryption and compression capabilities. The processor cores are paired with a ton of I/O. There are 8 PCIe 3 lanes, 14 SATA3 ports, and two 10GbE ports.
No mention of power consumption, which apparently is a major aspect of data center design. Or how hot they run.
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