Core i5-13400F vs Core 2 Duo T6670

The Core i5-13400F packs 10 cores / 16 threads, while the Core 2 Duo T6670 offers 2 cores / 2 threads — the Core i5-13400F has 8 more cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 2.2 GHz on the Core 2 Duo T6670 — a 70.6% clock advantage for the Core i5-13400F (base: 2.5 GHz vs 2.2 GHz). The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Core 2 Duo T6670 uses Penryn (2008−2011) (45 nm). In PassMark, the Core i5-13400F scores 25,029 against the Core 2 Duo T6670's 2,365 — a 165.5% lead for the Core i5-13400F. Geekbench 6 single-core — the metric most relevant to gaming — records 2,407 vs 252, a 162.1% lead for the Core i5-13400F that directly translates to higher frame rates. Multi-core Geekbench: 11,408 vs 252 (191.4% advantage for the Core i5-13400F). L3 cache: 20 MB (total) on the Core i5-13400F vs 2 MB L2 Cache on the Core 2 Duo T6670.

The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the Core 2 Duo T6670 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-13400F versus DDR3-1066 on the Core 2 Duo T6670 — the Core i5-13400F supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-13400F supports up to 192 GB of RAM compared to 8 GB — 184% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-13400F) vs 0 (Core 2 Duo T6670) — the Core i5-13400F offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-13400F) and GM45,PM45 (Core 2 Duo T6670).

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i5-13400F) vs VT-x (Core 2 Duo T6670). Primary use case: Core i5-13400F targets Gaming, Core 2 Duo T6670 targets Budget. Direct competitor: Core i5-13400F rivals Ryzen 5 7600; Core 2 Duo T6670 rivals Core 2 Duo T6600.