Even though we set the memory speed identical to the other boards tested at 1,066MHz, 5-5-5-15-2tRFC-2T, the Foxconn is slightly slower in read and copy speeds and has a fractionally lower latency than the Asus 790FX with SB600 and Asus CrossHair II with Nvidia's nForce 780a SLI MCP. Neither is a huge difference in synthetic bandwidth scores, but it's something that can often pass itself down into real-world scenarios.
Sisoft Sandra is somewhat less forgiving and puts the Foxconn A79A-S at the bottom of the table, 200MB/s slower than the Asus 790FX with SB600. Its latency, on the other hand, is only slightly higher than that of the Asus, but above both the other boards with integrated graphics chipsets.