The strong demand for large capacity transmission due to an unprecedented growth in data traffic requires an enhancement in the quality of service in the medium access control. This quality delivery features strongly in the IEEE802.11ac standard. Here, we have performed empirical measurements of an 802.11ac system based on the beam forming technology. In this work, an empirical analysis was conducted to determine the effectiveness of Beamforming Technology as depicts in the quality of service (QoS) enhancement in the newest wireless technology deployed on IEEE802.11ac standard. The experimental outcomes revealed the quality of service (QoS) enhancement in IEEE802.11ac. Although the realized throughput in real application scenario fell below designed specification. Nevertheless there is a considerable data throughput improvement on the counterpart 802.11n. There remain opportunities for further enhancements in beam-forming technology.