Core i9-11900T vs Core i5-1340P

The Core i9-11900T packs 8 cores / 16 threads, while the Core i5-1340P offers 12 cores / 16 threads — the Core i5-1340P has 4 more cores. Boost clocks reach 4.9 GHz on the Core i9-11900T versus 4.6 GHz on the Core i5-1340P — a 6.3% clock advantage for the Core i9-11900T (base: 1.5 GHz vs 1.9 GHz). The Core i9-11900T uses the Rocket Lake (2021) architecture (14 nm), while the Core i5-1340P uses Raptor Lake-P (2023) (Intel 7 nm). In PassMark, the Core i9-11900T scores 18,620 against the Core i5-1340P's 18,594 — a 0.1% lead for the Core i9-11900T. Geekbench 6 single-core — the metric most relevant to gaming — records 2,100 vs 2,374, a 12.2% lead for the Core i5-1340P that directly translates to higher frame rates. Multi-core Geekbench: 9,200 vs 10,611 (14.2% advantage for the Core i5-1340P). L3 cache: 16 MB (total) on the Core i9-11900T vs 18 MB (total) on the Core i5-1340P.

The Core i9-11900T uses the LGA1200 socket (PCIe 3.0), while the Core i5-1340P uses FCBGA1744 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i9-11900T versus DDR5 5200 MHz on the Core i5-1340P — the Core i5-1340P supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-11900T supports up to 128 GB of RAM compared to 96 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: H510,B560,H570,Z590 (Core i9-11900T) and Raptor Lake-P (Core i5-1340P).

Only the Core i9-11900T supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i9-11900T) vs true (Core i5-1340P). Both include integrated graphics — Intel UHD Graphics 750 (Core i9-11900T) and Intel Iris Xe Graphics (80EU) (Core i5-1340P) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-11900T targets Low Power High Perf Desktop, Core i5-1340P targets Productivity. Direct competitor: Core i5-1340P rivals Ryzen 5 7640U.