xSeries 335s are high-throughput, two-way SMP-capable Intel Xeon-based network servers with excellent scalability when you add memory and a second processor. These flip-chip, pin grid array 2 (FC-PGA2) processors feature advanced transfer L2 caches that are integrated onto the processor core and run at the same clock speed as the processor core. The advanced transfer cache is a result of a "backside bus" that is 256 bits wide. It features a quad-wide cache line that can transfer four 64-bit cache line segments at one time to deliver full-speed capability. The cache is eight-way set associative.