Core i5-4670K vs Core i5-6600T

Both the Core i5-4670K and Core i5-6600T share an identical 4-core/4-thread configuration. Boost clocks reach 3.8 GHz on the Core i5-4670K versus 3.5 GHz on the Core i5-6600T — a 8.2% clock advantage for the Core i5-4670K (base: 3.4 GHz vs 2.7 GHz). The Core i5-4670K uses the Haswell (2013−2015) architecture (22 nm), while the Core i5-6600T uses Skylake (2015−2016) (14 nm). In PassMark, the Core i5-4670K scores 5,584 against the Core i5-6600T's 5,565 — a 0.3% lead for the Core i5-4670K. Geekbench 6 single-core — the metric most relevant to gaming — records 975 vs 1,175, a 18.6% lead for the Core i5-6600T that directly translates to higher frame rates. L3 cache: 6144 kB (total) on the Core i5-4670K vs 6 MB (total) on the Core i5-6600T.

The Core i5-4670K uses the LGA1150 socket (PCIe 3.0), while the Core i5-6600T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Core i5-4670K versus DDR4-2133 on the Core i5-6600T — the Core i5-6600T supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-6600T supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: Z87,Z97 (Core i5-4670K) and H110,B150,H170,Z170,Q150,Q170,B250,Q250,H270,Z270 (Core i5-6600T).

Only the Core i5-4670K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, EPT (Core i5-4670K) vs VT-x, VT-d (Core i5-6600T). Both include integrated graphics — HD Graphics 4600 (Core i5-4670K) and HD Graphics 530 (Core i5-6600T) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-4670K targets Gaming Desktop, Core i5-6600T targets Office. Direct competitor: Core i5-4670K rivals FX-9370; Core i5-6600T rivals AMD Athlon II X4 640.

The Core i5-4670K launched at $328 MSRP, while the Core i5-6600T debuted at $213. At current prices ($200 vs $35), the Core i5-6600T is $165 cheaper. In terms of value (PassMark points per dollar), the Core i5-4670K delivers 27.9 pts/$ vs 159.0 pts/$ for the Core i5-6600T — making the Core i5-6600T the 140.3% better value option.