Testing conducted by Apple in December 2007 using preproduction 3.0GHz 8-core Xserve units and shipping 3.0GHz quad-core Xserve units. All systems were configured with 8GB of RAM. Results are based on the STREAM v. 5.6 benchmark (www.cs.virginia.edu/stream/ref.html) using OMP support for multiprocessor-compiled builds. Performance tests are conducted using specific computer systems and reflect the approximate performance of Xserve.

Testing conducted by Apple in December 2007 using a preproduction 3.0GHz 8-core Xserve (2 chips, 8 cores, 4 cores per chip, 3.0GHz; SPECjbb2005 bops = 103,886, SPECjbb2005 bops/JVM = 25,972) and a shipping 3.0GHz quad-core Xserve (2 chips, 4 cores, 2 cores per chip, 3.0GHz; SPECjbb2005 bops = 47,195, SPECjbb2005 bops/JVM = 23,598). SPEC® and SPECjbb2005® are trademarks of the Standard Performance Evaluation Corporation (SPEC); see www.spec.org for more information. AFP performance systems were configured with 8GB RAM and 3-disk RAID 0 (using the Xserve RAID Card and 15,000-rpm SAS disk drives). Results are based on the AFPBench benchmark, using 100 virtual clients, running on 29 physical systems, and making requests simulating typical home directory usage. Performance tests are conducted using specific computer systems and reflect the approximate performance of Xserve.

Testing conducted by Apple in December 2007 using preproduction 3.0GHz 8-core Xserve units and shipping 3.0GHz quad-core Xserve units. All systems were configured with 8GB of RAM. Linpack results are based on the 1000s and 1000d Linpack benchmarks available from www.netlib.org/benchmark using a matrix size of 23,000 for the single-precision results and 16,000 for the double-precision results. Content was encoded using the H.264 for iPod Video 640-by-480 preset in Compressor and Qmaster with 8 instances for the 8-core Xserve and 4 instances for the quad-core Xserve. Performance tests are conducted using specific computer systems and reflect the approximate performance of Xserve.