Lexar NM800 PRO 1000GB

The Lexar NM800 PRO 1000GB utilizes a high-performance architecture built around the InnoGrit IG5236 "Rainier" controller, an 8-channel NVMe 1.4 solution designed to maximize PCIe 4.0 bandwidth. This controller is paired with Micron’s 176-layer 3D TLC NAND (B47R) and includes a dedicated DRAM cache to optimize mapping table lookups and sustained write performance. The drive is engineered to deliver throughput that approaches the theoretical limits of the Gen4 interface, distinguishing it from DRAM-less alternatives that rely on Host Memory Buffer (HMB) implementations. The IG5236 has a high thermal density, so adequate cooling—via the optional integrated heatsink or a motherboard heat spreader—is necessary to prevent thermal throttling during extended heavy workloads. The 1TB model carries an endurance rating of 1000 TBW, is single-sided (M.2 2280) making it compatible with slim laptops and the PS5, and users should verify firmware versions upon installation since early IG5236-based platforms required updates to optimize garbage collection and stability.

Key Specifications

• Interface: PCIe 4.0 x4 (NVMe 1.4)
• Sequential Read/Write: 7,500 MB/s / 6,300 MB/s
• Controller: InnoGrit IG5236 (12nm FinFET)
• NAND Flash: Micron 176-layer 3D TLC
• DRAM Cache: Yes (Discrete DDR4/LPDDR4)
• Endurance: 1000 TBW
• Physical Layout: Single-sided PCB (M.2 2280)

Hardware Alternatives

• ADATA GAMMIX S70 BLADE 1000GB: structurally similar and listed among IG5236-based relatives using the same controller and NAND combination for comparable I/O consistency.
• Kingston KC3000 1000GB: a Phison E18-based competitor that shares Micron 176-layer NAND, resulting in nearly identical sequential throughput and random IOPS performance profiles.
• Seagate FireCuda 530 1000GB: another Phison E18 reference-design competitor that uses the same Micron 176-layer NAND and delivers similar performance characteristics.