Xeon E3-1515M v5 vs Core i3-1115G4

The Xeon E3-1515M v5 packs 4 cores / 8 threads, while the Core i3-1115G4 offers 2 cores / 4 threads — the Xeon E3-1515M v5 has 2 more cores. Boost clocks reach 3.7 GHz on the Xeon E3-1515M v5 versus 4.1 GHz on the Core i3-1115G4 — a 10.3% clock advantage for the Core i3-1115G4 (base: 2.8 GHz vs 2.2 GHz). The Xeon E3-1515M v5 uses the Skylake-H (2015−2016) architecture (14 nm), while the Core i3-1115G4 uses Tiger Lake-UP3 (2020−2021) (10 nm SuperFin). In PassMark, the Xeon E3-1515M v5 scores 5,925 against the Core i3-1115G4's 5,860 — a 1.1% lead for the Xeon E3-1515M v5. Geekbench 6 single-core — the metric most relevant to gaming — records 1,017 vs 1,579, a 43.3% lead for the Core i3-1115G4 that directly translates to higher frame rates. L3 cache: 8 MB (total) on the Xeon E3-1515M v5 vs 6 MB (total) on the Core i3-1115G4.

The Xeon E3-1515M v5 uses the BGA1440 socket (PCIe 3.0), while the Core i3-1115G4 uses FCBGA1449 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2133 memory speed. Both support up to 64 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Xeon E3-1515M v5) vs 4 (Core i3-1115G4) — the Xeon E3-1515M v5 offers 12 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Only the Core i3-1115G4 supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d, EPT virtualization. Both include integrated graphics — Iris Pro Graphics P580 (Xeon E3-1515M v5) and UHD Graphics for 11th Gen (48 EU) (Core i3-1115G4) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Xeon E3-1515M v5 targets Productivity, Core i3-1115G4 targets Mainstream Laptop. Direct competitor: Xeon E3-1515M v5 rivals Core i7-6700HQ; Core i3-1115G4 rivals Ryzen 3 5300U.