The innovative Virtex-5 architecture, which is
based on a real six-input lookup table (LUT) with dual-LUT capability, provides substantial resource utilization advantages over competing architectures. This white paper details those advantages, focusing on comparisons between the 65 nm high-end field programmable gate array (FPGA) offerings of Xilinx (Virtex-5 FPGAs) and Altera (Stratix III FPGAs).