Atom C3758 vs Core 2 Extreme QX9770

The Atom C3758 packs 8 cores / 8 threads, while the Core 2 Extreme QX9770 offers 4 cores / 4 threads — the Atom C3758 has 4 more cores. Boost clocks reach 2.2 GHz on the Atom C3758 versus 3.2 GHz on the Core 2 Extreme QX9770 — a 37% clock advantage for the Core 2 Extreme QX9770 (base: 2.2 GHz vs 3.2 GHz). The Atom C3758 uses the Goldmont (2016−2017) architecture (14 nm), while the Core 2 Extreme QX9770 uses Yorkfield (2007−2009) (45 nm). In PassMark, the Atom C3758 scores 4,614 against the Core 2 Extreme QX9770's 4,611 — a 0.1% lead for the Atom C3758. Geekbench 6 single-core — the metric most relevant to gaming — records 400 vs 451, a 12% lead for the Core 2 Extreme QX9770 that directly translates to higher frame rates. Multi-core Geekbench: 2,400 vs 1,583 (41% advantage for the Atom C3758). L3 cache: 16 MB on the Atom C3758 vs 0 kB on the Core 2 Extreme QX9770.

The Atom C3758 uses the FCBGA1310 socket (PCIe 3.0), while the Core 2 Extreme QX9770 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Atom C3758 versus DDR3-1600 on the Core 2 Extreme QX9770 — the Atom C3758 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom C3758 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. Both provide 16 PCIe lanes. Chipset compatibility: SoC (Atom C3758) and X48,X38,P45 (Core 2 Extreme QX9770).

Only the Core 2 Extreme QX9770 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Atom C3758) vs VT-x (Core 2 Extreme QX9770). Primary use case: Atom C3758 targets Server/Embedded, Core 2 Extreme QX9770 targets Enthusiast.