The EliteBook achieves a runtime of 18:23 h in idle mode. 2.9 GHz), the Broadwell processor performs about 5 to 20% better than its Haswell predecessor. Due to the improvements of the Broadwell architecture and the higher first turbo level (3.1 GHz vs.
The latter uses a lower base speed (2.1 GHz) and a somewhat higher maximum speed (3.3 GHz). The Core i7-5600U processor is the successor of the Core i7-4600U CPU (Haswell). Those who want to use the turbo in both modes need to activate the option 'Enable Turbo Boost on DC' in the BIOS setup. The deactivation of the turbo during battery mode was intentional by HP. In battery mode the CPU runs at a constant 2.6 GHz (=base speed). Thus the multithread performance lies far behind the CPU's capabilities. Single-thread tests are run at 3.1 to 3.2 GHz and multithread tests at 2.7 to 2.8 GHz. The turbo allows speeds of up to 3.1 GHz (dual-core) and 3.2 GHz (single-core) respectively however, it can only be activated in power-supply mode. The processor runs at a base speed of 2.6 GHz. The CPU is part of Intel's Broadwell processor range. Our test configuration uses one of the most powerful ULV processors that Intel currently has to offer, the dual-core processor Core i7-5600U.
