Core i7-13700K vs A8-3820

The Core i7-13700K packs 16 cores / 24 threads, while the A8-3820 offers 4 cores / 4 threads — the Core i7-13700K has 12 more cores. Boost clocks reach 5.4 GHz on the Core i7-13700K versus 2.8 GHz on the A8-3820 — a 63.4% clock advantage for the Core i7-13700K (base: 3.4 GHz vs 2.5 GHz). The Core i7-13700K uses the Raptor Lake, Raptor Cove, Gracemont (2022) architecture (Intel 7 nm), while the A8-3820 uses Llano (2011−2012) (32 nm). In PassMark, the Core i7-13700K scores 45,784 against the A8-3820's 2,178 — a 181.8% lead for the Core i7-13700K. Geekbench 6 single-core — the metric most relevant to gaming — records 2,846 vs 354, a 155.8% lead for the Core i7-13700K that directly translates to higher frame rates. L3 cache: 30 MB (total) on the Core i7-13700K vs 0 kB on the A8-3820.

The Core i7-13700K uses the LGA1700 socket (PCIe 5.0), while the A8-3820 uses FM1 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i7-13700K versus DDR3-1866 on the A8-3820 — the Core i7-13700K supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-13700K supports up to 192 GB of RAM compared to 32 GB — 142.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: Intel Z790,Intel H770,Intel B760,Intel Z690,Intel H670,Intel B660,Intel H610 (Core i7-13700K) and A55,A75 (A8-3820).

Only the Core i7-13700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: true (Core i7-13700K) vs AMD-V (A8-3820). Both include integrated graphics — Intel UHD Graphics 770 (Core i7-13700K) and Radeon HD 6550D (A8-3820) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A8-3820 targets Budget Desktop. Direct competitor: Core i7-13700K rivals Ryzen 9 7900X; A8-3820 rivals Core i3-2120.

The Core i7-13700K launched at $409 MSRP, while the A8-3820 debuted at $280. At current prices ($400 vs $200), the A8-3820 is $200 cheaper. In terms of value (PassMark points per dollar), the Core i7-13700K delivers 114.5 pts/$ vs 10.9 pts/$ for the A8-3820 — making the Core i7-13700K the 165.2% better value option.