ASUS P5N32 Sli Se Deluxe - Ram Timing question

My CPUZ reads as follows (in bios I have the ram set at 667 speed)

 

Frequency: 333.3MHz

FSB Dram 9:10

CAS 4

Ras to Cas delay 4

Ras 4

Cycle Time 12

Bank Cycle Time 19

 

 

NO idea why it says 333.3MHz when I have it set to 667 in the bios.

 

It is 4 sticks of Crucial DDR2 ram (4 1gig sticks) CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X2048-6400C4 (Bought 2 of these)

 

Motherboard is ASUS P5N32 SLI Se Deluxe 0801 bios

Vista 64.

 

Any help would be appreciated.

333.3mhz is the actual frequency of Dual Data Rate RAM. DDR RAM (1,2,or3) transfers data on the rising and falling edge of each clock cycle so, the effective data rate is 666.6mhz or, rounded to DDR667.