MadBoxPC posted a comparison review between Asus P5K Deluxe vs ASUS P5K3 Deluxe in Spanish

Based on Intel's P35 chipset, ASUS P5K Deluxe and ASUS P5K3 Deluxe motherboards comes are designed to support the next generation 45nm CPU; and up to 8GB of dual-channel DDR3 1066/800 MHz (P5K3 Deluxe) or dual-channel DDR2 800/667 MHz (P5K Deluxe). Both supports 1333/1066/800 FSB CPU and Crossfire. They are perfect to see differences between DDR2 or DDR3 memory

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