Silicon Motion Company presented At the Future of Memory and Storage (FMS) event, a controller for SSDs with a PCIe 5.0 interface that meets the NVMe 2.0 standard was unveiled. Drives based on it will find application in desktop and mobile computers, including AI systems, as well as in gaming consoles.
Image source: Silicon Motion
Silicon Motion SM2508 is the world’s first consumer PCIe 5.0 x4 SSD controller manufactured using TSMC’s 6nm EUV process technology, which reduces power consumption by 50% compared to 12nm counterparts. The total power consumption of an SSD with this controller is less than 7W, which is 1.7 times lower than a PCIe 4.0 SSD and up to 70% better than competing PCIe 5.0 offerings. The chip itself consumes 3W.
The component supports eight NAND channels with a speed of 3600 MT/s per channel, providing sequential read and write speeds of up to 14.5 and 13.6 GB/s, respectively, as well as 2.5 million IOPS for random operations – 2x higher than that of PCIe 4.0 products. Silicon Motion SM2508 supports 8th generation NANDXtend technology with an on-disk learning algorithm that helps reduce the time of error correction (ECC) for increased performance and energy efficiency; it supports the latest 3D TLC/QLC NAND memory chips, which provide high data density.
The Silicon Motion SM2508 is based on a quad-core Arm Cortex-R8 processor. The controller has already been adopted for development by several major SSD manufacturers, including major NAND chip suppliers. Drives based on the SM2508 will go into production in Q4 of this year.
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