MacRumors.com

Following yesterday's premature specifications by Amazon.com, Apple has released upgraded PowerMac G5s in the following configurations:

Single 1.8GHz PowerPC G5
600MHz frontside bus
512K L2 cache
256MB DDR400 SDRAM
Expandable to 4GB SDRAM
80GB Serial ATA
8x SuperDrive
Three PCI Slots
NVIDIA GeForce FX 5200 Ultra
64MB DDR video memory
56K internal modem

Dual 2GHz PowerPC G5
1GHz frontside
bus/processor
512K L2 cache/processor
512MB DDR400 SDRAM
Expandable to 4GB SDRAM
160GB Serial ATA
16x SuperDrive (double-layer)
Three PCI Slots
ATI Radeon 9600
128MB DDR video memory

Dual 2.3GHz PowerPC G5
1.15GHz frontside
bus/processor
512K L2 cache/processor
512MB DDR400 SDRAM
Expandable to 8GB SDRAM
250GB Serial ATA
16x SuperDrive (double-layer)
Three PCI-X Slots
ATI Radeon 9600
128MB DDR video memory

Dual 2.7GHz PowerPC G5
1.35GHz frontside
bus/processor
512K L2 cache/processor
512MB DDR400 SDRAM
Expandable to 8GB SDRAM
250GB Serial ATA
16x SuperDrive (double-layer)
Three PCI-X Slots
ATI Radeon 9650
256MB DDR video memory

All models feature 1-2 day shipping times, meaning new product should be available in stores immediately for purchase.