Silicon Motion Launches SM8466 PCIe Gen6 SSD Controller for Enterprise Solutions: Achieve Speeds Up to 28 GB/s and Capacities of 512 TB

Silicon Motion has made an exciting announcement with the launch of its next-generation PCIe Gen6 SSD controller, designed to enhance high-performance storage solutions for enterprise-level applications.

Silicon Motion Introduces MonTitan SM8466 PCIe Gen6 SSD Controller for Enterprise Needs

Earlier this year, Silicon Motion (SMI) indicated that it was developing PCIe Gen6 SSD controllers, and they have now officially introduced their inaugural product. As anticipated, these controllers are initially tailored for the enterprise and data center market, with consumer-grade products likely remaining off the table until at least the end of the decade. This delay comes despite hopes that PCIe 5.0 SSDs would achieve widespread adoption more quickly.

Silicon Motion Unveils Its First PCIe Gen6 SSD Controller For Enterprise: SM8466 With Up To 28 GB/s Speeds & 512 TB Capacities — Image Source: Silicon Motion

Diving into the technical specifications, the SM8466 is part of the MonTitan series, engineered specifically for enterprise-tier storage solutions. It is produced using TSMC’s 4nm process technology, supporting the SCA interface and boasting impressive storage capacities of up to 512 TB—a substantial increase compared to its predecessor, the SM8366.

Key features of the Silicon Motion SM8466 PCIe Gen6 SSD controller include compliance with the latest NVMe 2.0+ interface, along with adherence to the OCP NVME SSD Spec 2.5. The controller is equipped with advanced functionalities such as SR-IOV/MPF support, namespace management, SMART monitoring capabilities, End-To-End Data protection, Secure Boot, AES-256 encryption, and TCG Opal and Attestation support.

In terms of performance, the MonTitan SM8466 controller is set to deliver speeds reaching up to 28 GB/s. This represents a remarkable enhancement, effectively doubling the maximum speeds of existing PCIe Gen5 SSDs, which peak at 14 GB/s. It is also capable of achieving around 7 million IOPS, providing a robust benchmark against the previous generation.

Comparison of SM8466 Gen6 and SM8366 Gen5 Controllers

Process Node: 4nm vs 12nm
Maximum Capacity: 512 TB vs 128 TB
Maximum Speed: 28 GB/s vs 14.2 GB/s
IOPS: 7.0M vs 3.5M

At the upcoming Flash Memory Summit (FMS) 2025, Silicon Motion plans to provide additional details about the MonTitan SM8466 PCIe Gen6 SSD controller. However, the actual products are not expected to hit the market until 2026-2027, coinciding with the rollout of next-gen data centers. Once again, the CEO of Silicon Motion, Wallace C. Kuo, reinforced the notion that consumer-level SSDs will not materialize until at least 2030.

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