Realtek Teases 8-Channel PCIe 5.0 SSD Controller, 14GB/s Read Speeds

Although PCIe 5.0 has been introduced for several years, its market share in the consumer sector remains limited, largely due to Phison being the sole provider of solutions. With multiple controller manufacturers launching their own PCIe 5.0 SSD controllers, consumer-grade SSDs are expected to accelerate the transition from PCIe 4.0 to 5.0 this year.

According to Tom’s Hardware, Realtek showcased their SSD controller roadmap at this year’s Computex, which includes the RTS5782 controller featuring a PCIe 5.0 x4 interface. This high-end controller from Realtek boasts 8 NAND channels, supports a 3600MT/s flash interface, 4K LDPC ECC correction, and can utilize DDR4 or LPDDR3/4x as cache. Its performance is top-tier, with sequential read speeds of up to 14000MB/s, sequential write speeds of up to 12000MB/s, and 4K random read/write IOPS reaching 2500K. However, this controller is still in the planning stage, with no confirmed release date.

Before the RTS5782 hits the market, Realtek has two other controllers, one PCIe 4.0 x4 and one PCIe 5.0 x4, both entry-level products. The RTS5776DL, designed for low-end SSDs, is a PCIe 4.0 controller with a DRAM-less design, featuring 4 NAND channels, a 3600MT/s flash interface, sequential read/write speeds of 7400MB/s, and random read/write IOPS of 1200K. Engineering samples are expected in Q4 2024.

The RTS5781DL, a four-channel PCIe 5.0 x4 controller, also employs a DRAM-less design, with 4 NAND channels, a 3600MT/s flash interface, sequential read/write speeds of 10000MB/s, and random read/write IOPS of 1400K. Engineering samples are anticipated in Q1 2025.