The Intel Celeron J4005 is a dual-core desktop SoC primarily for mini PCs and mini ITX mainboards. It runs at 2 - 2.7 GHz (Single Core Burst) and is based on the Gemini Lake platform. Similar to the Apollo Lake predecessor, the chip is manufactured in a 14 nm process with FinFETs but offers slightly improved processor cores, double the amount of L2 cache, a smaller package, a new generation of monitor outputs (Gen 10) and a partly integrated WiFi chip. Besides four CPU cores, the chip also includes a DirectX 12 capable GPU as well as a DDR4/LPDDR4 memory controller (dual-channel, up to 2400 MHz). The SoC is not replaceable as it is permanently soldered to the mainboard.
Architecture
The processor architecture was slightly reworked and is now called Goldmont Plus. It features an increased level 2 cache (to 4 MB). That means the per-clock-performance should be a bit better, but not anywhere near the Core CPUs like Kaby Lake Y.
Performance
The average J4005 in our database is in the same league as the Celeron N3450 and the Celeron 3865U, as far as multi-thread benchmark scores are concerned. This is an abysmally poor result, as of early 2023.
Power consumption
This Celeron series chip has a default TDP, also known as the long-term power limit, of 10 W. That's not much at all and thus good enough for passively cooled tablets, laptops and mini-PCs.
The J4005 is built with one of Intel's old 14 nm processes for poor, as of early 2023, energy efficiency.