Core i5-4400E vs A8-7670K

The Core i5-4400E packs 2 cores / 4 threads, while the A8-7670K offers 4 cores / 4 threads — the A8-7670K has 2 more cores. Boost clocks reach 3.3 GHz on the Core i5-4400E versus 3.9 GHz on the A8-7670K — a 16.7% clock advantage for the A8-7670K (base: 2.7 GHz vs 3.6 GHz). The Core i5-4400E uses the Haswell (2013−2015) architecture (22 nm), while the A8-7670K uses Godaveri (2014−2016) (28 nm). In PassMark, the Core i5-4400E scores 3,251 against the A8-7670K's 3,267 — a 0.5% lead for the A8-7670K.

The Core i5-4400E uses the BGA1364 socket (PCIe 3.0), while the A8-7670K uses FM2+ (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Core i5-4400E versus 2133 on the A8-7670K — the A8-7670K supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A8-7670K supports up to 64 of RAM compared to 16 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes.

Only the A8-7670K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-4400E) vs true (A8-7670K). Both include integrated graphics — HD Graphics 4600 (Core i5-4400E) and Radeon R7 Graphics (A8-7670K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-4400E targets Embedded. Direct competitor: A8-7670K rivals Core i3-4170.

The Core i5-4400E launched at $266 MSRP, while the A8-7670K debuted at $118. At current prices ($50 vs $43), the A8-7670K is $7 cheaper. In terms of value (PassMark points per dollar), the Core i5-4400E delivers 65.0 pts/$ vs 76.0 pts/$ for the A8-7670K — making the A8-7670K the 15.5% better value option.