Chinese company InnoGrit has established itself as a strong competitor in the high-end SSD controller market. At Computex 2023, the company showcased an early sample of its upcoming IG5666 PCIe 5.0 NVMe SSD controller, which is aimed at consumers. Currently, the company has taped out the controller, but is not satisfied with the physical size of the chip and will be doing another tape out for a more optimized chip. InnoGrit is using a 16 nm node for the controller, which may be contributing to the difficulty in achieving the desired size, but cost considerations also need to be taken into account.

Based on the early samples, InnoGrit expects the IG5666 to achieve sequential speeds of up to 14 GB/s read and 11 GB/s write, with random performance reaching 3 million read and 2.5 million write IOPs. The controller should support up to 16 TB of NAND flash and 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 designed for enterprise use but delivers similar performance.