The Z620 Workstation from Hewlett-Packard is the fastest PC we’ve ever seen. The handsome midtower is physically sound, well designed, easy to service without tools, and its benchmark performance was simply off the charts. The system we tested packed a pair of Intel’s latest Xeon E5-2690 processors running at 2.9GHz. For graphics, HP threw in a Quadro 4000 from Nvidia with 2 GB of dedicated GDDR5 memory moving data across a 256-bit memory interface at a maximum speed close to 90 GBps. For storage, the Z620 held a pair of 300-GB SAS drives plus a 256-GB SSD SAS, all controlled by an LSI 9212-4i SAS RAID card. The operating system was 64-bit Windows 7 Pro. The tested system, with its 16 cores and 32 processor threads with access to 24 GB of 1,600MHz DDR3 error-correcting memory, cranked out a maximum Geekbench 2.3 score of 41,348, the highest we’ve seen on any machine, server, workstation or otherwise.