Chinese InnoGrit has proved to be something of a competent contender in the high-end SSD controller market and at Computex 2023 the company was displaying an early sample of its upcoming IG5666 consumer focused PCIe 5.0 NVMe SSD controller. At the moment the company has taped out the controller, but aren't happy with the physical size of the chip and will be doing another tape out for a more optimised chip. Innogrit is using a 16 nm node for the controller, which might be part of the reason why they're having a hard time to get it the right size, but there's also cost reasons that have to be taken into consideration.

Based on the early samples, InnoGrit is expecting it to reach sequential speeds of up to 14 GB/s read and 11 GB/s write. Random performance is said to reach 3 million read and 2.5 million write IOPs. The controller should support up to 16 TB of NAND flash and it supports all common types of NAND up to a speed of 2400 MT/s. The IG5666 is based on the same Tacoma architecture as InnoGrit's IG5669, which is targeting enterprise use, yet delivers similar performance.