Silicon Motion showcased its latest advancements in SSD and flash storage controller technology at Computex 2025, highlighting two standout products aimed at both consumer and enterprise storage markets. The main attraction was the SM2504XT, a DRAMless NVMe SSD controller built on TSMC´s 6 nm process. With a low active power consumption of just 2.4 W and an impressive idle draw of only 1 mW, this controller targets energy-conscious applications without sacrificing speed. It features four flash channels, each supporting up to 3600 MT/s transfer rates via 16 control elements. Compatibility with 3D TLC and 3D QLC NAND from leading vendors ensures flexibility for SSD manufacturers.
A reference SSD using the SM2504XT demonstrated exceptional performance, reaching sequential read speeds of 11.5 GB/s and sequential write speeds of 11 GB/s. In random performance, the drive achieved 1.7 million IOPS for 4K random reads and up to 2 million IOPS for 4K random writes. These figures place it among the fastest DRAMless SSD controllers in the current market, bridging the gap between affordability and high performance for client devices such as laptops and desktops.
For the enterprise sector, Silicon Motion presented the SM8366 SSD controller, which is designed for PCI Express Gen 5 x4 connectivity. The SM8366 supports major form-factors including U.2, E1.S, and E3.S, accommodating even extremely high-capacity SSDs. At Computex, the showcased demo drive used a unique dual-PCB layout interlinked by a ribbon cable, providing space for DRAM cache and capacitor-based power-loss protection—key features for high-reliability enterprise storage. Performance demonstrations revealed sequential reads at 14,710 MB/s (with QD128), sequential writes at 3,444 MB/s, and up to 3 million IOPS for 4K random reads at QD512, underlining its suitability for data-intensive enterprise applications.
Silicon Motion´s latest controllers underscore its leading position in the SSD controller industry, with advanced engineering focused on both ultra-fast, energy-efficient consumer devices and robust, scalable enterprise solutions. The developments unveiled at Computex 2025 signal a significant performance leap and expanded capabilities for forthcoming SSD products across various computing segments.
