# HP FX900 Pro 512GB -- InnoGrit IG5236 PCIe 4.0 NVMe SSD Review (2026)

The HP FX900 Pro 512 GB is the entry-level capacity of HP's flagship PCIe 4.0 SSD line, built on the InnoGrit IG5236 controller with capacity-specific trade-offs in write speed and endurance.

Quick answer: The 512 GB FX900 Pro is a competent budget entry into the Phison-alternative Gen4 tier. Its 7,000 MB/s reads are strong, but the 3,800 MB/s write speed and 300 TBW endurance reflect the capacity penalty inherent in the 512 GB form factor. Buyers who can stretch to the 1 TB model get nearly double the write speed and double the endurance. The FX900 Pro is best purchased at 1 TB or above — the 512 GB is viable only as an OS drive or PS5 secondary where budget is the primary constraint.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 512 GB |
| Interface | M.2 4.0 x 4 |
| Controller | Innogrit IG5236 |
| Memory type | Micron TLC |
| DRAM cache | DDR4 |
| Sequential read | 7000 MB/s |
| Sequential write | 3800 MB/s |
| Random read IOPS | 1300000 |
| Random write IOPS | 1100000 |
| Endurance | 300 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

The 512 GB FX900 Pro delivers 7,000/3,800 MB/s sequential reads and writes. Read IOPS are rated at 1,300,000 and write IOPS at 1,100,000. The InnoGrit IG5236 handles SLC cache management efficiently, though the smaller NAND pool limits the pseudo-SLC cache size. For gaming and desktop use, the 3,800 MB/s write ceiling is sufficient. Sustained multi-hundred-GB transfers will transition to native TLC speeds faster than larger capacities.

## Endurance, TBW & Warranty

HP covers the FX900 Pro 512 GB with a five-year warranty limited by 300 TBW, equivalent to roughly 164 GB/day over five years. The 1 TB model carries 600 TBW, 2 TB 1,200 TBW, and 4 TB reaches 2,400 TBW.

## Pros and Cons

**Pros:**

- 7,000 MB/s reads -- competitive Gen4 performance
- InnoGrit IG5236 -- proven PCIe 4.0 controller
- 5-year warranty across all capacities
- 512 GB sufficient for OS and core applications
**Cons:**

- 3,800 MB/s writes -- half the larger capacities
- 300 TBW endurance -- lowest in the lineup
- 512 GB tight for game libraries
- Better value at 1 TB capacity


## Verdict

The 512 GB FX900 Pro is a competent budget entry into the Phison-alternative Gen4 tier. Its 7,000 MB/s reads are strong, but the 3,800 MB/s write speed and 300 TBW endurance reflect the capacity penalty inherent in the 512 GB form factor. Buyers who can stretch to the 1 TB model get nearly double the write speed and double the endurance. The FX900 Pro is best purchased at 1 TB or above — the 512 GB is viable only as an OS drive or PS5 secondary where budget is the primary constraint.

## Frequently Asked Questions

### Is the 512GB FX900 Pro fast enough for PS5?

Yes — 7,000 MB/s reads exceed the 5,500 MB/s minimum. The 512 GB capacity holds a handful of large titles. Write speed is not a constraint for console use.

### Why is the 512GB write speed so much lower?

The InnoGrit IG5236 has eight NAND channels. The 512 GB model populates fewer dies per channel, reducing write parallelism. This is normal capacity scaling — the 1 TB and 2 TB models deliver 6,400-6,700 MB/s writes.

### What is the TBW of the 512GB FX900 Pro?

Rated for 300 TBW over five years, equivalent to roughly 164 GB/day. The 1 TB carries 600 TBW, 2 TB 1,200 TBW.

### How does it compare to the Kingston NV2 512GB?

The NV2 is a DRAM-less PCIe 4.0 budget drive at 3,500/2,500 MB/s using the Silicon Motion SM2267XT. The FX900 Pro is significantly faster on both reads and writes but costs more. For a boot drive, the NV2 is adequate; the FX900 Pro is the Gen4 flagship choice.

### Does it have DRAM?

Yes — the FX900 Pro includes DRAM cache, which provides better random I/O performance and longevity compared to DRAM-less HMB designs like the Kingston NV2.

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Last updated: 2026-05-23. Source: https://ssdrive.net/hp-fx-900-pro-512-gb