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

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

The Core i3-1115G4 uses the FCBGA1449 socket (PCIe 4.0), while the Xeon E3-1515M v5 uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. Both support up to 64 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 4 (Core i3-1115G4) vs 16 (Xeon E3-1515M v5) — 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 — UHD Graphics for 11th Gen (48 EU) (Core i3-1115G4) and Iris Pro Graphics P580 (Xeon E3-1515M v5) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-1115G4 targets Mainstream Laptop, Xeon E3-1515M v5 targets Productivity. Direct competitor: Core i3-1115G4 rivals Ryzen 3 5300U; Xeon E3-1515M v5 rivals Core i7-6700HQ.