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Silicon Motion Debuts SM2524XT PCIe Gen5 DRAMless SSD Controller for AI PCs

SM2524XT PCIe Gen5 DRAMless SSD controller

Silicon Motion has introduced the SM2524XT, a high-performance PCIe Gen5 DRAMless SSD controller designed specifically to meet the demands of AI-capable personal computers. This new hardware addresses the intensive data requirements of AI inference and KV Cache workloads, which are becoming standard as more generative AI features move from the cloud to local devices. By utilizing a DRAMless design, the controller aims to provide high-speed storage performance while maintaining the power efficiency required for modern laptops and compact desktops.

The SM2524XT is built on TSMC's 6nm process, a choice that results in a 25% improvement in power efficiency compared to previous generations. It features a sophisticated four-processor-core architecture and supports NAND interface speeds of up to 4800 MT/s. These technical specifications allow the controller to reach sequential read speeds of 14 GB/s and random performance of 2.5 million IOPS. For consumers, this translates to significantly faster boot times, near-instant application launches, and smoother handling of large AI models running locally on their machines.

Optimized for AI PCs and Efficiency

Silicon Motion announced the hardware this week, highlighting its role in the growing ecosystem of AI PCs. Unlike traditional high-end SSDs that rely on dedicated DRAM chips for mapping data, the SM2524XT uses a DRAMless architecture. This design reduces the physical footprint of the storage drive and lowers manufacturing costs, which could lead to more affordable high-speed storage options for end users. Despite the lack of dedicated DRAM, the controller maintains elite performance levels through its PCIe Gen5 x4 interface.

The focus on KV Cache optimization is particularly relevant for users of large language models. This technology helps the system remember previous parts of a conversation or data set, making AI interactions faster and more responsive. By optimizing the SSD controller for these specific tasks, Silicon Motion ensures that the storage layer does not become a bottleneck for the specialized AI processors found in the latest chips from Intel, AMD, and Qualcomm.

As of 2026-05-29, the SM2524XT is a major shift toward specialized storage hardware that prioritizes the unique data patterns of artificial intelligence. While specific pricing for consumer drives using this controller has not yet been disclosed, the efficiency gains and high throughput suggest it will be a staple in the next wave of premium AI-focused laptops. Manufacturers are expected to integrate this silicon into upcoming SSD releases later this year.

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