EPYC 4124P vs Core i7-9800X

The EPYC 4124P packs 4 cores / 8 threads, while the Core i7-9800X offers 8 cores / 16 threads — the Core i7-9800X has 4 more cores. Boost clocks reach 5.1 GHz on the EPYC 4124P versus 4.5 GHz on the Core i7-9800X — a 12.5% clock advantage for the EPYC 4124P (base: 3.8 GHz vs 3.8 GHz). The EPYC 4124P uses the Raphael (2023−2025) architecture (5 nm), while the Core i7-9800X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the EPYC 4124P scores 18,139 against the Core i7-9800X's 18,128 — a 0.1% lead for the EPYC 4124P. Cinebench R23 multi-core: 10,500 vs 13,067 (21.8% advantage for the Core i7-9800X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,962 vs 1,372, a 35.4% lead for the EPYC 4124P that directly translates to higher frame rates. Multi-core Geekbench: 1,898 vs 7,552 (119.7% advantage for the Core i7-9800X). L3 cache: 32 MB (total) on the EPYC 4124P vs 16.5 MB (total) on the Core i7-9800X.

The EPYC 4124P uses the AM5 socket (PCIe 4.0), while the Core i7-9800X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the EPYC 4124P versus DDR4-2666 on the Core i7-9800X — the EPYC 4124P supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4124P supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Memory channels: 2 (EPYC 4124P) vs 4 (Core i7-9800X). PCIe lanes: 28 (EPYC 4124P) vs 44 (Core i7-9800X) — the Core i7-9800X offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: B650,X670,X870 (EPYC 4124P) and X299 (Core i7-9800X).

Only the Core i7-9800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V, AMD-Vi (EPYC 4124P) vs VT-x, VT-d (Core i7-9800X). The EPYC 4124P includes integrated graphics (Radeon Graphics), while the Core i7-9800X requires a dedicated GPU. Primary use case: EPYC 4124P targets Entry Server, Core i7-9800X targets Workstation. Direct competitor: EPYC 4124P rivals Core i5-10500T; Core i7-9800X rivals Ryzen 5 3600XT.