Lexar has announced its new Thor Ultra series of PCIe Gen 5 SSDs for desktop and laptop PC gamers and enthusiasts. Available in 512GB, 1TB, 2TB, and 4TB capacities, the Lexar Thor Ultra series can reach sequential read speeds of up to 11 GB/s and sequential write speeds of up to 10 GB/s on the higher-capacity models. Interestingly, the 512GB model's read speed is listed as up to 9 GB/s.

Elsewhere, random performance hits 2.2 million IOPS for reads and 1.9 million IOPS for writes, with Lexar noting that the Thor Ultra series is also efficient. The DRAM-less design includes an advanced 6nm controller optimized for thermal performance and power efficiency, making it an ideal choice for those looking for both speed and reliability. The compact, single-sided, power-efficient design also suits laptops and desktop builds.
Rounding out the design, the dynamic SLC cache makes the Thor Ultra series suitable for demanding AI workloads in addition to PC gaming. For gaming, Lexar confirms the Thor Ultra series supports Microsoft's DirectStorage technology to accelerate loading and data streaming.


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Does the Thor Ultra require a DRAM module, and how does its DRAM-less 6nm controller affect thermals and power?
Which Thor Ultra capacities support the maximum 11,000 MB/s read and 10,000 MB/s write figures?
What are the random IOPS (read/write) for each capacity and how might those numbers impact gaming and load times?
What endurance (TBW) and warranty does each Thor Ultra capacity ship with?
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Lexar Thor Ultra PCIe Gen5x4 NVMe SSDs also ship with Lexar's DiskMaster management software to monitor SSD health, optimize performance, ensure data security, and manage firmware updates. Here's a look at the specs.
| Item | Details |
|---|---|
| Product Name | Lexar THOR ULTRA PCIe Gen5x4 NVMe SSD |
| Capacity | 512GB, 1TB, 2TB, 4TB |
| Form Factor | M.2 2280 |
| Interface | PCIe Gen5x4 |
| Read/Write Speed | 512GB: 9900/5000MB/s, 1TB, 2TB, 4TB: 11000/10000 MB/s |
| Random Read/Write (IOPS) | 512GB: 900K/1200K, 1TB: 1500K/1900K, 2TB: 2200K/1900K, 4TB: 2000K/1900K, |
| Operating Temperature | 0° to 70°C |
| Storage Temperature | -40° to 85°C |
| Shock Resistant | 1500G, duration 0.5ms, Half Sine Wave |
| Vibration Resistant | 10~2000Hz, 1.5mm, 20G, 1Oct/min, 30min/axis (X, Y, Z) |
| TBW | 512GB: 350TBW, 1TB: 750TBW, 2TB: 1500TBW, 4TB: 3000TBW |
| MTBF | 1,500,000 Hours |
| Dimension (W x L x H) | 80 x 22 x 2.45 mm |
| Weight | 6g |
| Warranty | Five-year limited warranty |






