Core i3-5010U vs Core i5-3437U

Both the Core i3-5010U and Core i5-3437U share an identical 2-core/4-thread configuration. Boost clocks reach 2.1 GHz on the Core i3-5010U versus 2.9 GHz on the Core i5-3437U — a 32% clock advantage for the Core i5-3437U (base: 2.1 GHz vs 1.9 GHz). The Core i3-5010U uses the Broadwell-U (2015) architecture (14 nm), while the Core i5-3437U uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Core i3-5010U scores 2,157 against the Core i5-3437U's 2,166 — a 0.4% lead for the Core i5-3437U. Geekbench 6 single-core — the metric most relevant to gaming — records 737 vs 440, a 50.5% lead for the Core i3-5010U that directly translates to higher frame rates. Both processors carry 3 MB (total) of L3 cache.

The Core i3-5010U uses the FCBGA1168 socket (PCIe 3.0), while the Core i5-3437U uses BGA1023 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR3L-1600 memory speed. The Core i5-3437U supports up to 32 GB of RAM compared to 16 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Core i3-5010U) vs 16 (Core i5-3437U) — the Core i5-3437U offers 4 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Virtualization support: VT-x, VT-d, EPT (Core i3-5010U) vs VT-x, VT-d (Core i5-3437U). Both include integrated graphics — HD Graphics 5500 (Core i3-5010U) and Intel HD Graphics 4000 (Core i5-3437U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-5010U targets Mainstream Laptop, Core i5-3437U targets Business Ultrabook. Direct competitor: Core i3-5010U rivals A10-8700P; Core i5-3437U rivals AMD A8-4555M.