I notice that the 1155 MB's seem to provide dual channel memory while the 1366 boards provide three channel. Just curious why the newer 1155 MB's are using what I thought was an older technology.
the tech is older but its also cheaper. triple channel memory on the 1366 boards had higher speed and higher latencies. the 1156 and 1155 chipsets have integrated memory controllers on teh CPU and thus lower latencies. in the end there is next to no performance boost from the trip channel and most 1155 boards will support more ram than there 1366 counterparts.
Well sort of they both have IMC on their CPUs, the Sandy Bridge can go to ~2400MHz and the LGA 1366 CPU's ~2200MHz. Other differences are the LGA 1155 consumer MOBO support 8GB/DIMM (4*8GB = 32GB) whereas the LGA 1366 consumer are 4GB/DIMM (6*4GB = 24GB). note the 8GB sticks are still crazy expensive.