Core 2 Duo T7700 vs Core i5-670

The Core 2 Duo T7700 packs 2 cores / 2 threads, matching the Core i5-670's 2 cores. Boost clocks reach 2.4 GHz on the Core 2 Duo T7700 versus 3.73 GHz on the Core i5-670 — a 43.4% clock advantage for the Core i5-670 (base: 2.4 GHz vs 3.46 GHz). The Core 2 Duo T7700 uses the Merom (2006−2008) architecture (65 nm), while the Core i5-670 uses Clarkdale (2010−2011) (32 nm). In PassMark, the Core 2 Duo T7700 scores 2,554 against the Core i5-670's 2,553 — a 0% lead for the Core 2 Duo T7700. Geekbench 6 single-core — the metric most relevant to gaming — records 254 vs 638, a 86.1% lead for the Core i5-670 that directly translates to higher frame rates. L3 cache: 0 kB on the Core 2 Duo T7700 vs 4 MB (total) on the Core i5-670.

The Core 2 Duo T7700 uses the PGA478 socket (PCIe 1.1), while the Core i5-670 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Duo T7700 versus DDR3-1333 on the Core i5-670 — the Core i5-670 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-670 supports up to 16 GB of RAM compared to 4 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: GL960,GME965,GM965,PM965 (Core 2 Duo T7700) and H55,H57,P55,Q57 (Core i5-670).

Neither processor supports overclocking. Virtualization support: VT-x (Core 2 Duo T7700) vs VT-x, VT-d, EPT (Core i5-670). The Core i5-670 includes integrated graphics (HD Graphics), while the Core 2 Duo T7700 requires a dedicated GPU. Primary use case: Core 2 Duo T7700 targets Budget, Core i5-670 targets Legacy Desktop. Direct competitor: Core 2 Duo T7700 rivals Athlon 64 X2 5000+; Core i5-670 rivals Phenom II X4 955.