Core i7-9800X vs Core Ultra 5 238V

The Core i7-9800X packs 8 cores / 16 threads, matching the Core Ultra 5 238V's 8 cores. Boost clocks reach 4.5 GHz on the Core i7-9800X versus 4.7 GHz on the Core Ultra 5 238V — a 4.3% clock advantage for the Core Ultra 5 238V (base: 3.8 GHz vs 2.1 GHz). The Core i7-9800X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Core Ultra 5 238V uses Lunar Lake (2024) (3 nm). In PassMark, the Core i7-9800X scores 18,128 against the Core Ultra 5 238V's 18,219 — a 0.5% lead for the Core Ultra 5 238V. Cinebench R23 multi-core: 13,067 vs 10,000 (26.6% advantage for the Core i7-9800X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,372 vs 2,683, a 64.7% lead for the Core Ultra 5 238V that directly translates to higher frame rates. Multi-core Geekbench: 7,552 vs 10,130 (29.2% advantage for the Core Ultra 5 238V). L3 cache: 16.5 MB (total) on the Core i7-9800X vs 8 MB (total) on the Core Ultra 5 238V.

The Core i7-9800X uses the LGA2066 socket (PCIe 3.0), while the Core Ultra 5 238V uses FCBGA2833 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9800X versus LPDDR5x-8533 on the Core Ultra 5 238V — the Core Ultra 5 238V supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9800X supports up to 128 GB of RAM compared to 32 GB — 120% more capacity for professional workloads. Memory channels: 4 (Core i7-9800X) vs 2 (Core Ultra 5 238V). PCIe lanes: 44 (Core i7-9800X) vs 8 (Core Ultra 5 238V) — the Core i7-9800X offers 36 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i7-9800X) and SoC (Core Ultra 5 238V).

Only the Core i7-9800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i7-9800X supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core Ultra 5 238V includes integrated graphics (Arc Graphics 130V), while the Core i7-9800X requires a dedicated GPU. Primary use case: Core i7-9800X targets Workstation, Core Ultra 5 238V targets Productivity. Direct competitor: Core i7-9800X rivals Ryzen 5 3600XT; Core Ultra 5 238V rivals Ryzen 5 8640U.

The Core i7-9800X launched at $589 MSRP, while the Core Ultra 5 238V debuted at $454. At current prices ($210 vs $454), the Core i7-9800X is $244 cheaper. In terms of value (PassMark points per dollar), the Core i7-9800X delivers 86.3 pts/$ vs 40.1 pts/$ for the Core Ultra 5 238V — making the Core i7-9800X the 73.1% better value option.