# Kioxia XG6-P 1TB Review — PCIe 3.0 NVMe SSD (2026)

The Kioxia XG6-P 1TB is a budget-oriented PCIe 3.0 NVMe SSD that brings 96-layer NAND to the value segment, trading some endurance for lower cost.

Quick answer: The Kioxia XG6-P 1TB is an excellent value-oriented PCIe 3.0 NVMe drive that delivers near-flagship performance at a budget price. The 96-layer BiCS4 TLC NAND and proven TC58NCP090GSB controller provide reliable, consistent performance that competes well against more expensive alternatives. Buy it if you want strong Gen3 NVMe performance without paying the premium for flagship drives, and if the reduced endurance rating versus enterprise-grade drives is acceptable for your use case.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 3.0 x 4 |
| Controller | Toshiba TC58NCP090GSB |
| Memory type | Toshiba TLC |
| DRAM cache | LPDDR3 |
| Sequential read | 3180 MB/s |
| Sequential write | 2920 MB/s |
| Random read IOPS | 355000 |
| Random write IOPS | 365000 |
| Endurance | 747 TBW |
| MTBF | 1500000 |
| Warranty | 5 years |

## Performance

The Kioxia XG6-P 1TB is rated at 3,180 MB/s sequential reads and 2,920 MB/s sequential writes. These are class-leading speeds for a budget-oriented PCIe 3.0 drive, matching or exceeding more expensive alternatives. Random 4K performance is rated at approximately 350,000 IOPS reads and 360,000 IOPS writes, placing the XG6-P in the upper tier of Gen3 drives for random access patterns.

In real-world testing, the XG6-P delivers performance that belies its budget positioning. Independent reviewers found the drive consistently hitting its rated sequential speeds and maintaining strong sustained write performance after its SLC cache exhausts. The SLC implementation uses a portion of the TLC NAND in pseudo-SLC mode for burst writes, typically handling the first several gigabytes at full speed before dropping to native TLC write speeds.

Versus SATA SSDs, the XG6-P 1TB offers roughly 5–6x faster sequential throughput. For gaming, the difference between this drive and a PCIe 4.0 alternative is negligible in most titles—game load times are bounded by CPU decompression rather than storage bandwidth.

## Endurance, TBW & Warranty

Kioxia backs the XG6-P series with a 5-year warranty, matching the industry standard for performance-oriented NVMe drives. The company positions the XG6-P as a consumer-focused drive with reduced endurance versus the standard XG6 series. While Kioxia does not publicly specify TBW ratings for all regions, the XG6-P 1TB is typically rated at approximately 400–500 TBW based on industry documentation—lower than the 600 TBW of the standard XG6 1TB, but still adequate for most consumer workloads.

In practical terms, writing 50 GB per day would take roughly 22–27 years to reach 500 TBW. Most users write far less than 50 GB per day—typical consumer workloads see 10–20 GB of writes per day at most—so the endurance rating is more than adequate for the drive useful life.

## Pros and Cons

**Pros:**

- 3,180 MB/s sequential reads, 2,920 MB/s writes
- 96-layer BiCS4 TLC NAND offers improved efficiency
- Full DRAM cache for consistent random I/O performance
- 5-year warranty matches premium drive standards
- Single-sided M.2 2280 form factor fits thin laptops
**Cons:**

- Lower endurance (TBW) rating versus standard XG6 series
- Budget-focused drive with limited retail branding
- PCIe 3.0 limited—cannot match Gen4 drives in peak throughput
- No hardware encryption support


## Verdict

The Kioxia XG6-P 1TB is an excellent value-oriented PCIe 3.0 NVMe drive that delivers near-flagship performance at a budget price. The 96-layer BiCS4 TLC NAND and proven TC58NCP090GSB controller provide reliable, consistent performance that competes well against more expensive alternatives. Buy it if you want strong Gen3 NVMe performance without paying the premium for flagship drives, and if the reduced endurance rating versus enterprise-grade drives is acceptable for your use case.

Skip it if you are building a new system with PCIe 4.0 support and want to future-proof—the price difference between Gen3 and Gen4 drives has narrowed. Consider the standard Kioxia XG6 if you need higher endurance, or the WD Black SN850X if you want top-tier PCIe 4.0 performance.

## Frequently Asked Questions

### Is the Kioxia XG6-P 1TB good for gaming?

Yes. The XG6-P 1TB delivers 3,180 MB/s sequential reads and strong random 4K performance, which is more than adequate for gaming workloads. Game load times on PCIe 3.0 NVMe drives like the XG6-P are within a second or two of PCIe 4.0 drives because the bottleneck is CPU decompression rather than storage bandwidth. The drive full DRAM cache helps maintain consistent performance as the drive fills, which is important for gaming libraries with many titles. For most gamers, the XG6-P offers all the performance needed without paying extra for PCIe 4.0 speeds.

### What is the difference between the Kioxia XG6-P and XG6?

The XG6-P is a budget-oriented variant of the standard XG6, using the same 96-layer BiCS4 TLC NAND and TC58NCP090GSB controller but with reduced endurance ratings to achieve a lower price point. Sequential speeds are identical (3,180/2,920 MB/s) and real-world performance is very similar. The primary difference is TBW endurance—the XG6-P is rated for roughly 400–500 TBW on the 1TB model versus 600 TBW for the standard XG6. If you are a typical consumer user, the XG6-P endurance is more than adequate. Choose the standard XG6 if you need enterprise-grade endurance for write-heavy workloads.

### Is the Kioxia XG6-P 1TB compatible with the PS5?

The XG6-P fits physically in the PS5 M.2 expansion slot and will function. However, Sony recommends PCIe 4.0 NVMe drives with 5,500+ MB/s read speeds for optimal performance. The XG6-P is a PCIe 3.0 drive capped at 3,180 MB/s, so it will not deliver the full experience that Sony architecture is designed for. If you already own an XG6-P, it is a functional upgrade over the base PS5 storage, but if you are buying new for PS5 expansion, a PCIe 4.0 drive is a better match.

### Does the Kioxia XG6-P have a DRAM cache?

Yes. The XG6-P includes a DRAM cache for mapping tables and metadata, which is essential for maintaining consistent random I/O performance as the drive fills. Kioxia does not publicly specify the DRAM capacity for the XG6-P series, but based on teardown reports and industry standards, the 1TB model typically includes 1GB of DDR4 DRAM. This places the XG6-P above DRAM-less budget drives that use Host Memory Buffer (HMB) instead of on-board DRAM. The full DRAM cache helps maintain performance as the drive fills.

### How does the Kioxia XG6-P 1TB compare to the WD Blue SN570?

Both drives target the budget PCIe 3.0 segment but take different approaches. The WD Blue SN570 is DRAM-less, using Host Memory Buffer (HMB) to borrow system RAM for mapping tables. The Kioxia XG6-P includes a full DRAM cache, which provides more consistent random I/O performance especially as the drive fills or in CPU-bound scenarios like gaming. Sequential speeds are similar, with the XG6-P rated at 3,180/2,920 MB/s versus the SN570 roughly 3,500/3,000 MB/s. In real-world use, the XG6-P DRAM cache helps it maintain consistent performance.

### Is the Kioxia XG6-P reliable for long-term use?

Yes. The XG6-P is built on Kioxia proven 96-layer BiCS4 TLC NAND and the same TC58NCP090GSB controller used in the standard XG6 series. The primary difference is reduced endurance ratings, which reflects value-focused positioning rather than lower build quality. Kioxia is one of the largest NAND manufacturers in the world, and the XG series has been used extensively in OEM laptops and workstations. The 5-year warranty reflects Kioxia confidence in the drive durability. As with any SSD, keep regular backups regardless of the drive reputation.

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Last updated: 2026-05-23. Source: https://ssdrive.net/kioxia-xg6-p-1-tb