The desktop has evolved. The space saving and functionality-packed HP EliteDesk 705 G1 Desktop Mini includes new AMD PRO A-Series APUs1 with revolutionary HSA technology that provides a perfect balance of power and performance. That’s a smart investment.1 This system requires a separately purchased 64-bit operating system and 64-bit software products to take advantage of the 64-bit processing capabilities of AMD technology. Multi-core processing available with AMD technology is designed to improve performance of this system. Given the wide range of software applications available, performance of a system including a 64-bit operating system and a dual-core processor will vary. AMD's model numbering is not a measurement of clock speed.