[News] ZHITAI Launches Ti600s SSD with YMTC’s Xtacking 4.0 QLC NAND, Random Write Performance Up 114%

China’s NAND giant YMTC and its SSD brand ZHITAI have launched a new SSD powered by the company’s latest Xtacking technology. According to IT Home, ZHITAI first launched the Ti600 M.2 SSD in 2023 with Xtacking 3.0 QLC NAND. Three years on, the company has upgraded the lineup with the Ti600s, which adopts the latest Xtacking 4.0 QLC NAND, the report adds.

According to ZHITAI’s press release on August 18, the new Ti600s SSD uses YMTC’s next-generation Xtacking 4.0 QLC NAND flash, designed to meet storage needs across everyday office work, gaming and entertainment, and content creation. Powered by the Xtacking 4.0 architecture, the product reaches sequential read speeds of up to 7,400MB/s and sequential write speeds of up to 6,900MB/s.

Meanwhile, Xtacking 4.0 NAND also boosts interface speeds to 3,600MT/s, a 50% increase over the previous generation. Paired with a newly designed controller, the Zhitai Ti600s delivers 44% faster 4K random reads and 114% faster random writes than its predecessor, according to the company.

MyDrivers reports that the Ti600s adopts a mature DRAM-less design without a dedicated external cache, balancing performance and power efficiency. The SSD comes in four capacities—512GB, 1TB, 2TB and 4TB—with launch prices of RMB 1,189, RMB 1,889 and RMB 3,899 for the 1TB, 2TB and 4TB models, respectively.

Xtacking 4.0 NAND: 8-Plane Design in Focus

ZHITAI also highlights YMTC’s Xtacking 4.0-based X4-6080, which is regarded to be the industry’s first 2Tb 8-Plane QLC NAND flash. Its 2Tb per-die capacity delivers higher storage density, while Multi-Plane operation further boosts internal die-level parallelism beyond channel-level parallelism and die interleaving, the company notes.

As explained by ZHITAI, while NAND flash commonly uses 2-Plane or 4-Plane designs, the 8-Plane architecture takes the throughput gains from Multi-Plane operation to a new level. According to YMTC, the X4-6080 delivers 147% higher throughput than the previous-generation QLC NAND, significantly improving system responsiveness.

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(Photo credit: ZHITAI)