# Integral Ultima Pro X3 512GB Review — Mid-Range PCIe 4.0 NVMe SSD (2026)

The Integral Ultima Pro X3 512GB is a mid-range PCIe Gen4 NVMe SSD from UK-based Integral Memory, delivering 5000 MB/s sequential reads with 3D TLC NAND.

Quick answer: The Integral Ultima Pro X3 512GB is a competent mid-range PCIe 4.0 SSD that delivers 5,000 MB/s reads at a price point below flagship alternatives. The 3D TLC NAND is a solid choice over QLC, and the three-year warranty provides reasonable coverage for everyday use. The undisclosed controller and unpublished endurance rating are transparency gaps that make direct comparisons with competitors difficult. For UK and European buyers seeking a straightforward PCIe Gen4 boot drive without paying premium prices, the Ultima Pro X3 is a sensible option from an established British memory brand with decades of flash memory experience.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 512 GB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 |
| Memory type | 3D TLC |
| DRAM cache | Yes |
| Sequential read | 5000 MB/s |
| Sequential write | 4400 MB/s |
| Random read IOPS | 600000 |
| Random write IOPS | 600000 |
| Endurance | 600 TBW |
| MTBF | 2000000 |
| Warranty | 3 years |

## Performance

Sequential performance of 5,000 MB/s read and 4,400 MB/s write is solid mid-range PCIe 4.0 territory. These numbers are fast enough that everyday tasks — OS boot in under 15 seconds, application launches, game loading — feel instantaneous. The difference between 5,000 MB/s and the 7,000 MB/s flagship ceiling is imperceptible in real-world desktop use; it only matters in specialized workloads like large file transfers or video project saves.

Without a confirmed controller identity, precise random IOPS performance is difficult to state. If the drive uses an HMB DRAM-less design, random 4K performance will be adequate for light to moderate use but may show increased latency under sustained mixed workloads compared to DRAM-equipped drives. The 3D TLC NAND provides better sustained write characteristics than QLC alternatives, meaning the drive maintains its SLC cache performance longer before dropping to direct NAND speeds. Thermals on mid-range PCIe 4.0 controllers are generally manageable — they run cooler than flagship E18 chips — though a basic motherboard M.2 thermal plate is still recommended.

## Endurance, TBW & Warranty

Integral provides a three-year warranty on the Ultima Pro X3, which is shorter than the five-year coverage offered on enthusiast SSDs from Samsung, WD, and Corsair. The company does not publish an official TBW (terabytes written) endurance rating for the 512 GB model in its publicly available datasheets. For a 512 GB TLC drive of this class, a reasonable estimate would fall in the 300–400 TBW range based on comparable products, but this is not confirmed. MTBF is also not stated. For typical consumer use patterns of 20–40 GB written per day, even a conservative endurance estimate would comfortably exceed the three-year warranty period. Users planning heavy workstation workloads may prefer a drive with published endurance figures.

## Pros and Cons

**Pros:**

- 5,000 MB/s read speed on PCIe 4.0 x4
- 3D TLC NAND for better endurance than QLC
- Mid-range pricing below flagship Gen4 SSDs
- Three-year warranty from established brand
- M.2 2280 form factor for wide compatibility
**Cons:**

- Controller not publicly identified
- No published TBW endurance rating
- Three-year warranty versus five-year standard
- Likely DRAM-less design increases latency


## Verdict

The Integral Ultima Pro X3 512GB is a competent mid-range PCIe 4.0 SSD that delivers 5,000 MB/s reads at a price point below flagship alternatives. The 3D TLC NAND is a solid choice over QLC, and the three-year warranty provides reasonable coverage for everyday use. The undisclosed controller and unpublished endurance rating are transparency gaps that make direct comparisons with competitors difficult. For UK and European buyers seeking a straightforward PCIe Gen4 boot drive without paying premium prices, the Ultima Pro X3 is a sensible option from an established British memory brand with decades of flash memory experience.

## Frequently Asked Questions

### What controller does the Integral Ultima Pro X3 use?

Integral does not publicly disclose the controller model for this SKU. The 5,000 MB/s sequential read speed is characteristic of first-generation PCIe 4.0 controllers, though the exact silicon vendor may vary between production batches.

### Does the Ultima Pro X3 512GB have DRAM?

The drive appears to use a DRAM-less design, which is common in mid-range SSDs. Without a dedicated DRAM cache, it may rely on Host Memory Buffer architecture, borrowing a small amount of system RAM for flash translation layer management.

### What is the TBW endurance rating?

Integral does not publish an official TBW rating for the 512 GB model. For a comparable 512 GB TLC drive, typical endurance ranges from 300 to 400 TBW, but this is an estimate — the actual figure may differ.

### Is the Integral Ultima Pro X3 good for gaming?

Yes. The 5,000 MB/s sequential read speed is more than adequate for modern game loading, and the 512 GB capacity holds several large titles. The difference between this and a 7,000 MB/s flagship drive is negligible in gaming scenarios.

### Is the Ultima Pro X3 compatible with PS5?

It uses a PCIe 4.0 x4 interface with 5,000 MB/s reads, meeting Sony's minimum 5,500 MB/s recommendation may be borderline. Verify with Sony's current compatibility list before purchasing for PS5 expansion.

### Does the Ultima Pro X3 need a heatsink?

Mid-range PCIe 4.0 controllers generally run cooler than flagship chips. A basic motherboard M.2 thermal plate is recommended for sustained performance, though the drive may ship with or without a heatsink depending on the specific variant.

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Last updated: 2026-05-23. Source: https://ssdrive.net/integral-ultima-pro-x3-512-gb