Super G technology

Atheros Super G technology operates in two modes to increase bandwidth. The base mode uses standards-based data compression, large frames and bursting features to deliver real-world network throughput in excess of 40 Mbps for typical data files, an increase of up to two times over traditional 802.11g networks. The new Dynamic Turbo extends the feature set of Super G products by adding a capability that automatically detects and adapts to nearby Super G, 802.11g, and 802.11b products. Super G products employ a number of technologies to achieve performance gains over standard 802.11g products. The primary (and most problematic from a standards standpoint) is channel bonding. Super G products can bond two 20-MHz channels together. This 40-MHz footprint is centered on channel 6. This can cause adjacent channel interference on the only other two nonoverlapping channels in the 2.4-GHz spectrum, channels 1 and 11. That means the introduction of a Super G access point in close proximity to an existing 802.11g network can dramatically decrease the performance of the 802.11g network. Another technology used by Super G is packet bursting, which lets the AP and client card send more packets on each transmission, thereby making better use of air time by reducing the number of interpacket intervals. In addition, Super G's fast packets technology packs more data into each packet.
Source: Pcmag.com, bestbuy.com, nerfwear.com, wi-planet.com, atheros.com