Core i5-2415M vs Xeon E5603

The Core i5-2415M packs 2 cores / 4 threads, while the Xeon E5603 offers 4 cores / 4 threads — the Xeon E5603 has 2 more cores. Boost clocks reach 2.9 GHz on the Core i5-2415M versus 1.6 GHz on the Xeon E5603 — a 57.8% clock advantage for the Core i5-2415M (base: 2.3 GHz vs 1.6 GHz). The Core i5-2415M uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Xeon E5603 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i5-2415M scores 1,933 against the Xeon E5603's 1,935 — a 0.1% lead for the Xeon E5603. L3 cache: 3 MB (total) on the Core i5-2415M vs 4 MB (total) on the Xeon E5603.

The Core i5-2415M uses the BGA1023 socket (PCIe 2.0), while the Xeon E5603 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. The Xeon E5603 supports up to 288 GB of RAM compared to 16 GB — 178.9% more capacity for professional workloads. Memory channels: 2 (Core i5-2415M) vs 3 (Xeon E5603). PCIe lanes: 16 (Core i5-2415M) vs 32 (Xeon E5603) — the Xeon E5603 offers 16 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Virtualization support: VT-x (Core i5-2415M) vs VT-x, VT-d (Xeon E5603). The Core i5-2415M includes integrated graphics (HD Graphics 3000), while the Xeon E5603 requires a dedicated GPU. Primary use case: Core i5-2415M targets Mobile, Xeon E5603 targets Server.