8641: 512 MB or 1 GB DDR2 Across two banks, FPGAs: 512 MB DDR2 SDRAM across two banks per FPGA, 36 MB QDR-II+ SRAM per FPGA across four banks
Four 4-lane Serial RapidIO links, 8-lane PCIe or 4-lane SRIO XMC; Processor: 4-lane Serial RapidIO to Fabric, 1 x EIA-232, 1 x EIA-422/232, 2 x Gbe, 16 LTTL DIO; FPGAs: 4-lane Serial RapidIO to fabric, 4-lane RocketIO, 36-pairs LVDS DIO from each FPGA