# Addlink X70 1TB Review — Phison E12 RGB NVMe SSD with 1175 TBW (2026)

The Addlink X70 1TB is a PCIe 3.0 NVMe SSD with RGB lighting and a Phison E12 controller, delivering near-saturating PCIe 3.0 speeds with class-leading endurance.

Quick answer: The Addlink X70 1TB is a strong PCIe 3.0 NVMe SSD that delivers near-saturating interface speeds with the well-proven Phison E12 controller. Its 1,175 TBW endurance rating is exceptional for a 1 TB TLC drive, and the 1 GB DRAM cache ensures consistent random I/O performance. The RGB heatsink adds visual appeal and thermal management, though some lighting settings may marginally affect performance. The ADATA XPG Gammix S11 Pro 1TB offers similar Phison E12 performance without the RGB, and the Corsair MP510 960GB is a strong alternative for buyers who prefer a different brand. The X70 is best suited for RGB-focused builds where users want top-tier PCIe 3.0 performance with visible storage aesthetics.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 3.0 x 4 |
| Controller | Phison PS5012-E12-27 |
| Memory type | Toshiba 3D TLC |
| DRAM cache | SK Hynix DDR4-2400 |
| Sequential read | 3500 MB/s |
| Sequential write | 3000 MB/s |
| Random read IOPS | 510000 |
| Random write IOPS | 500000 |
| Endurance | 1175 TBW |
| MTBF | 1.8 |
| Warranty | 5 years |

## Performance

The Addlink X70 1TB is rated at 3,500 MB/s sequential reads and 3,000 MB/s sequential writes — figures that essentially saturate the PCIe 3.0 x4 interface. These are flagship-level speeds for the PCIe 3.0 generation, and the 1 TB capacity, with its multiple NAND packages for parallelism, is well-positioned to reach these numbers in practice. The Phison E12 controller is a mature, well-optimized platform that consistently delivers near-theoretical-maximum throughput on PCIe 3.0.

The drive uses a dynamic SLC cache for write acceleration. The 1 TB variant has a reasonably large SLC cache, but Tom's Hardware noted it as relatively small compared to some competitors. Once the cache exhausts during sustained writes, throughput drops to direct-to-TLC speeds, which on the Toshiba 64-layer NAND is still respectable but noticeably lower than the burst figures. For typical desktop use — booting, launching applications, loading games — the SLC cache is more than sufficient.

Random 4K performance is rated at 510,000 IOPS reads and 500,000 IOPS writes. These numbers place the X70 among the fastest PCIe 3.0 drives in synthetic benchmarks. The 1 GB of SK Hynix DDR4-2400 DRAM helps maintain consistent random I/O under mixed workloads, as the full flash translation table fits in the dedicated cache rather than relying on HMB. In real-world application testing, the X70 delivers responsive performance that matches other Phison E12-based drives.

The RGB heatsink provides effective thermal management for the Phison E12, which is known to run warm under sustained loads. Tom's Hardware noted that some RGB lighting configurations may affect SSD performance, likely due to the shared controller managing both the NAND and LED functions. For users who run the RGB at full brightness continuously, a minor performance overhead may be observable in sustained workloads. In most usage scenarios, this effect is negligible.

## Endurance, TBW & Warranty

Addlink covers the X70 1TB with a five-year limited warranty, whichever comes first based on TBW (terabytes written) or warranty period. The drive is rated at 1,175 TBW — an exceptionally high endurance figure for a 1 TB TLC SSD. At a sustained workload of 40 GB per day, a 1,175 TBW drive would take roughly 80 years to exhaust, well beyond the five-year warranty period. Tom's Hardware described this as class-leading endurance for a 1 TB consumer SSD. The drive does not carry a published MTBF rating. The five-year warranty covers manufacturing defects and premature failure regardless of write volume.

## Pros and Cons

**Pros:**

- 3,500/3,000 MB/s near-saturates PCIe 3.0 x4
- 1,175 TBW class-leading endurance for 1TB TLC
- 1 GB SK Hynix DDR4 DRAM cache
- RGB heatsink with effective thermal management
- Five-year limited warranty
**Cons:**

- RGB lighting settings may affect SSD performance
- No SSD toolbox or cloning software from Addlink
- Small SLC write cache relative to competitors
- RGB heatsink adds height — clearance concerns
- Phison E12 runs warm under sustained loads


## Verdict

The Addlink X70 1TB is a strong PCIe 3.0 NVMe SSD that delivers near-saturating interface speeds with the well-proven Phison E12 controller. Its 1,175 TBW endurance rating is exceptional for a 1 TB TLC drive, and the 1 GB DRAM cache ensures consistent random I/O performance. The RGB heatsink adds visual appeal and thermal management, though some lighting settings may marginally affect performance. The ADATA XPG Gammix S11 Pro 1TB offers similar Phison E12 performance without the RGB, and the Corsair MP510 960GB is a strong alternative for buyers who prefer a different brand. The X70 is best suited for RGB-focused builds where users want top-tier PCIe 3.0 performance with visible storage aesthetics.

## Frequently Asked Questions

### Is the Addlink X70 1TB good for gaming?

Yes, the X70 1TB is excellent for gaming. Its 3,500 MB/s sequential read speed delivers fast game load times, and the 1 TB capacity can hold the operating system plus 10-15 modern games. The Phison E12 controller and 1 GB DRAM cache ensure responsive performance even when loading multiple games or streaming assets simultaneously. The RGB heatsink keeps the drive cool during extended gaming sessions.

### Does the Addlink X70 1TB have a DRAM cache?

Yes, the X70 1TB includes 1 GB of SK Hynix DDR4-2400 DRAM — double the 512 MB found on many competing 1 TB drives. This generous DRAM cache stores the full flash translation table, providing consistent random I/O performance without borrowing system RAM. The extra DRAM helps maintain performance under heavy mixed workloads and contributes to the drive's strong benchmark results.

### What is the TBW endurance of the Addlink X70 1TB?

The Addlink X70 1TB is rated at 1,175 TBW (terabytes written), which is exceptionally high for a 1 TB TLC SSD. At a typical consumer write volume of 40 GB per day, the drive would take roughly 80 years to reach this limit. The drive carries a five-year warranty, whichever comes first. This endurance rating makes the X70 one of the most durable 1 TB consumer SSDs available.

### Does the Addlink X70 need a heatsink?

The X70 comes with an integrated RGB heatsink, so no additional cooling is required. The Phison E12 controller is known to run warm under sustained loads, and the included heatsink provides effective thermal management. However, the heatsink adds height, which could cause clearance issues with large CPU coolers or low-profile ITX builds. If the motherboard has an M.2 heatsink already, you may need to remove the X70's RGB heatsink to avoid conflicts.

### Is the Addlink X70 1TB compatible with the PS5?

No, the X70 1TB is not compatible with the PlayStation 5. Sony requires a PCIe 4.0 NVMe SSD with at least 5,500 MB/s sequential read speed for PS5 storage expansion. The X70 is a PCIe 3.0 drive rated at 3,500 MB/s reads — below Sony's threshold. For PS5 upgrades, consider PCIe 4.0 drives like the WD Black SN850X, Samsung 980 PRO, or Addlink's own S70.

### How does the Addlink X70 compare to the Addlink S70?

The X70 and S70 share similar internals — both use the Phison E12 controller, Toshiba 3D TLC NAND, and a DRAM cache. The main difference is the heatsink: the X70 features an RGB-lit heatsink for visible aesthetics, while the S70 uses a different thermal design. Performance between the two is very similar. The choice comes down to whether you want RGB lighting on your SSD. If RGB is not important, the S70 may be available at a lower price.

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Last updated: 2026-05-17. Source: https://ssdrive.net/addlink-x70-1-tb