2008 Mac Pro 6 memory module performance
Looking here :
diglloyd - The Apple Mac Pro - All About Mac Pro Memory
About half way down the page here :
I want to assuming I don't get too much of a performance hit use 6 modules
Memory performance—8 modules vs 4
AnandTech has an interesting article “Understanding FB DIMMS
”, as part of its discussion of the new Apple Mac Pro (FB-DIMMS are the technical name for the type of memory module used by the Mac Pro).
The claim is that filling all 8 memory slots will in theory reduce
memory performance over using just 4 slots due to the nature of the serial data transfer in an FB-DIMM—increased latency of 3-5 nanoseconds. No measurable difference in memory copy speed was observed with memory in slots 3 and 4 as compared with slots 1 and 2. That doesn’t
mean there isn’t a difference in some real world applications, because bandwidth and latency are independent
4 * 4gb and the stock 2 * 1gb modules
Will this slow it down or would I be better just using the 4 * 4gb and leaving the 2 * 1 gb modules out ?