Dual Memory Speeds?? (real beginners question)

[alastair79]

I currently have a EVGA 590i motherboard but at some point I want to upgrade this to a AM2+ board, but why are the boards for AMD’s only up to 1066 memory speed when the latest for Intel are now on 1800??

Sorry I know this is a real beginners question




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[BillytheImpaler]

Intel puts its memory controllers on the motherboard so the CPU has to access it before accessing memory. AMD puts it on the processor die so that the CPU can directly access memory over what's called the Hypertransport bus. Becasue of this architecture, concerning performance, memory speed is not as important to AMDs as it is to Intels.

 

[BUFF]

but why are the boards for AMD’s only up to 1066 memory speed when the latest for Intel are now on 1800??

because AMD are still on DDR2 whilst Intel are moving to DDR3.
As BillytheImpaler said AMD's different architecture means that they don't yet see an advantage to moving to DDR3 (& especially with current pricing for DDR2 v DDR3 I doubt that many people have moved/are moving soon to DDR3).