Core i3-1315UE vs Core i5-8500B

The Core i3-1315UE packs 6 cores / 8 threads, matching the Core i5-8500B's 6 cores. Boost clocks reach 4.5 GHz on the Core i3-1315UE versus 4.1 GHz on the Core i5-8500B — a 9.3% clock advantage for the Core i3-1315UE (base: 1.2 GHz vs 3 GHz). The Core i3-1315UE uses the Raptor Lake-U (2023) architecture (10 nm), while the Core i5-8500B uses Coffee Lake (2017−2019) (14 nm). In PassMark, the Core i3-1315UE scores 9,003 against the Core i5-8500B's 8,900 — a 1.2% lead for the Core i3-1315UE. Geekbench 6 single-core — the metric most relevant to gaming — records 2,000 vs 1,364, a 37.8% lead for the Core i3-1315UE that directly translates to higher frame rates. L3 cache: 10 MB (total) on the Core i3-1315UE vs 9 MB (total) on the Core i5-8500B.

The Core i3-1315UE uses the FCBGA1744 socket (PCIe 5.0), while the Core i5-8500B uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Core i3-1315UE versus DDR4-2666 on the Core i5-8500B — the Core i3-1315UE supports 95% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-1315UE supports up to 96 GB of RAM compared to 64 GB — 50% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i3-1315UE) vs 16 (Core i5-8500B) — the Core i3-1315UE offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Raptor Lake-U (Core i3-1315UE) and H310,B360,H370,Z370,Q370 (Core i5-8500B).

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i3-1315UE) vs VT-x, VT-d, EPT (Core i5-8500B). Both include integrated graphics — Intel UHD Graphics (Core i3-1315UE) and UHD Graphics 630 (Core i5-8500B) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-1315UE targets Mainstream Laptop, Core i5-8500B targets Mini PC/Embedded. Direct competitor: Core i5-8500B rivals Ryzen 5 2600.

At launch, the Core i3-1315UE was priced at $312, while the Core i5-8500B came in at $192. On launch pricing ($312 vs $192), Core i5-8500B was $120 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-1315UE delivers 28.9 pts/$ vs 46.4 pts/$ for the Core i5-8500B — making the Core i5-8500B the 46.5% better value option.

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