The document introduces AppliedMicro's X-Gene® processor technology. The X-Gene 1 and X-Gene 2 are server-on-a-chip solutions that integrate ARMv8 CPU cores, memory controllers, networking, storage and I/O interfaces while achieving high performance and low power. Benchmark results show the X-Gene processors providing competitive performance to Intel Xeon chips while using less power. The high-density, low-power X-Gene chips allow building scale-out servers that deliver significantly higher performance and lower costs than traditional scale-up servers for various workloads like web applications and databases.