With the advent of specially design ASICs to perform bitcoin mining, the new miners will mine 100 fold better than conventional GPU and FPGA methods currently used. The new ASICs use a fractional amount of power compared to current mining. Once the new ASICs are on the network, they will push the GPUs and FPGA miners off the network because the proportion of mining work being done will be low enough to make it not worth mining with these devices. Multiple manufacturers such as Butterfly labs and Avalon are scheduled to ship in a couple months.
