EPYC 4345P vs Core i7-12700K

The EPYC 4345P packs 8 cores / 16 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core i7-12700K has 4 more cores. Boost clocks reach 5.5 GHz on the EPYC 4345P versus 5 GHz on the Core i7-12700K — a 9.5% clock advantage for the EPYC 4345P (base: 3.8 GHz vs 3.6 GHz). The EPYC 4345P uses the Grado (2025) architecture (4 nm), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the EPYC 4345P scores 36,006 against the Core i7-12700K's 34,347 — a 4.7% lead for the EPYC 4345P. L3 cache: 32 MB (total) on the EPYC 4345P vs 25 MB (total) on the Core i7-12700K.

The EPYC 4345P uses the AM5 socket (PCIe 4.0), while the Core i7-12700K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4345P versus 4800 on the Core i7-12700K — the EPYC 4345P supports 15.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (EPYC 4345P) vs 20 (Core i7-12700K) — the EPYC 4345P offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4345P) and Z690,B660 (Core i7-12700K).

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the EPYC 4345P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V, IOMMU (EPYC 4345P) vs VT-x, VT-d (Core i7-12700K). Both include integrated graphics — AMD Radeon Graphics (EPYC 4345P) and Intel UHD Graphics 770 (Core i7-12700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: EPYC 4345P rivals Xeon E-2488; Core i7-12700K rivals Ryzen 7 5800X.

The EPYC 4345P launched at $329 MSRP, while the Core i7-12700K debuted at $409. At current prices ($329 vs $285), the Core i7-12700K is $44 cheaper. In terms of value (PassMark points per dollar), the EPYC 4345P delivers 109.4 pts/$ vs 120.5 pts/$ for the Core i7-12700K — making the Core i7-12700K the 9.6% better value option.