Apple was expected to announce the new G5 PowerMacs next week when CEO Steve Jobs delivered a keynote speech at the company's annual developer conference in San Francisco however Apple accidentally posted some specs on its own online store yesterday, having a ton of enthusiast sites noticing the error and reporting about it.

According to screen shots taken by enthusiast sites including MacMinute, the new Macs range in speed from 1.6GHz to a dual 2GHz, all using a new G5 processor. The machines also were touted as having up to 8GB of memory, a 1GHz processor bus, Serial ATA disk drives, AGP 8x Pro graphics from either ATI Technologies or Nvidia, and three PCI or PCI-X expansion slots. The machines were also said to come with three USB 2.0 ports, one Firewire 800 port and two FireWire 400 ports as well as optical and analog audio in and out ports.