Celeron G6900E vs Core i5-6400T

The Celeron G6900E packs 2 cores / 2 threads, while the Core i5-6400T offers 4 cores / 4 threads — the Core i5-6400T has 2 more cores. Boost clocks reach 3 GHz on the Celeron G6900E versus 2.8 GHz on the Core i5-6400T — a 6.9% clock advantage for the Celeron G6900E (base: 3 GHz vs 2.2 GHz). The Celeron G6900E uses the Alder Lake-S (2022) architecture (10 nm), while the Core i5-6400T uses Skylake (2015−2016) (14 nm). In PassMark, the Celeron G6900E scores 4,272 against the Core i5-6400T's 4,243 — a 0.7% lead for the Celeron G6900E. Geekbench 6 single-core — the metric most relevant to gaming — records 1,563 vs 950, a 48.8% lead for the Celeron G6900E that directly translates to higher frame rates. Multi-core Geekbench: 2,631 vs 2,600 (1.2% advantage for the Celeron G6900E). L3 cache: 4 MB (total) on the Celeron G6900E vs 6 MB on the Core i5-6400T.

The Celeron G6900E uses the LGA1700 socket (PCIe 5.0), while the Core i5-6400T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Celeron G6900E versus DDR4-2133 on the Core i5-6400T — the Celeron G6900E supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G6900E supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Celeron G6900E) vs 16 (Core i5-6400T) — the Celeron G6900E offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Celeron G6900E) and H110,B150,H170,Z170,Z270 (Core i5-6400T).

Neither processor supports overclocking. Virtualization support: VT-x (Celeron G6900E) vs VT-x, VT-d (Core i5-6400T). Both include integrated graphics — UHD Graphics 710 (Celeron G6900E) and HD 530 (Core i5-6400T) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron G6900E targets Budget, Core i5-6400T targets Budget. Direct competitor: Celeron G6900E rivals Pentium Gold G7400; Core i5-6400T rivals Core i3-7100.

The Celeron G6900E launched at $53 MSRP, while the Core i5-6400T debuted at $192. At current prices ($53 vs $40), the Core i5-6400T is $13 cheaper. In terms of value (PassMark points per dollar), the Celeron G6900E delivers 80.6 pts/$ vs 106.1 pts/$ for the Core i5-6400T — making the Core i5-6400T the 27.3% better value option.