Atom C3558 vs Core m3-7Y30

The Atom C3558 packs 4 cores / 4 threads, while the Core m3-7Y30 offers 2 cores / 4 threads — the Atom C3558 has 2 more cores. Boost clocks reach 2.2 GHz on the Atom C3558 versus 2.6 GHz on the Core m3-7Y30 — a 16.7% clock advantage for the Core m3-7Y30 (base: 2.2 GHz vs 1 GHz). The Atom C3558 uses the Goldmont (2016−2017) architecture (14 nm), while the Core m3-7Y30 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Atom C3558 scores 2,431 against the Core m3-7Y30's 2,418 — a 0.5% lead for the Atom C3558. L3 cache: 8 MB on the Atom C3558 vs 4 MB on the Core m3-7Y30.

The Atom C3558 uses the FCBGA1310 socket (PCIe 3.0), while the Core m3-7Y30 uses FCBGA1515 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Atom C3558 versus LPDDR3-1866 / DDR3L-1600 on the Core m3-7Y30 — the Atom C3558 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom C3558 supports up to 256 GB of RAM compared to 16 GB — 176.5% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Atom C3558) vs 10 (Core m3-7Y30) — the Atom C3558 offers 2 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1310 (Atom C3558) and Kaby Lake-Y SoC (Core m3-7Y30).

Virtualization: not specified (Atom C3558) / VT-x / VT-d / EPT (Core m3-7Y30). The Core m3-7Y30 includes integrated graphics (Intel HD Graphics 615), while the Atom C3558 requires a dedicated GPU. Primary use case: Core m3-7Y30 targets Ultra-portable.