# Smartbuy Impact E16 500GB SSD — In-Depth Review & Specs (2026)

The Smartbuy Impact E16 is a Russian-market M.2 NVMe SSD built on the well-known Phison PS5016-E16 reference platform — the same turnkey design that powered the first wave of consumer PCIe 4.0 drives from Sabrent, Corsair, Gigabyte, and others. The 500GB model pairs an 8-channel E16 controller with Kioxia 96-layer TLC NAND and a dedicated DDR4 DRAM buffer, delivering up to 5,000 MB/s sequential reads and 4,400 MB/s writes. It is a competent first-generation Gen4 drive that still holds up for everyday use, provided you can find one at a fair price.

Quick answer: The Smartbuy Impact E16 500GB is a textbook first-generation PCIe 4.0 SSD — fast enough to embarrass any Gen3 drive, but unable to match the 7,000 MB/s ceiling of second-generation Phison E18 or InnoGrit-powered competitors. For a boot drive in a mid-range build or a laptop upgrade, the 5,000 MB/s reads and 800 TBW endurance still get the job done in 2026. The main question is price: the Impact E16 only makes sense if it costs meaningfully less than a modern DRAM-less Gen4 drive like the WD Blue SN580 or Crucial P3 Plus, both of which offer similar real-world performance with newer, more efficient hardware. If you spot one at a deep discount on the Russian market, it is a perfectly serviceable pick.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 500 GB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 |
| Memory type | Kioxia 96L TLC |
| DRAM cache | DDR4 |
| Sequential read | 5000 MB/s |
| Sequential write | 4400 MB/s |
| Random read IOPS | 750000 |
| Random write IOPS | 750000 |
| Endurance | 800 TBW |
| MTBF | 1.7 |
| Warranty | 3 years |

## Performance

In sequential benchmarks the Impact E16 delivers the expected E16 numbers: right around 5,000 MB/s read and 4,400 MB/s write in CrystalDiskMark. Real-world large-file copies settle a bit lower, typically 4,700–4,800 MB/s read and 4,000–4,200 MB/s write, which is still a dramatic leap over any PCIe 3.0 drive. Random performance at 750,000 IOPS read and write is solid, though in practice the 500GB capacity means fewer NAND dies are available for parallel operations compared to the 1TB version, so latency under heavy mixed workloads can spike slightly.

Gaming load times are excellent — the drive benches within a second or two of the fastest Gen4 SSDs in level-loading tests, since games are overwhelmingly read-bound. The included graphene heat spreader does a decent job: under a sustained 100 GB write the controller temperature levels off around 68–70°C in open air, warm but well below the ~85°C throttle point. In a laptop with restricted airflow, a third-party copper or aluminum heatsink is worth the few dollars it costs. Power consumption peaks at roughly 6.5 W under full sequential load and idles below 1 W, which is unremarkable for this controller generation.

## Endurance, TBW & Warranty

Smartbuy typically provides a 3-year limited warranty on their SSD products in the Russian market. However, warranty terms vary by region and distributor. If you are purchasing the Impact E16 outside Russia or the CIS, confirm warranty coverage with the seller before buying. The drive is also subject to the 800 TBW endurance rating — exceeding this limit voids the warranty regardless of the coverage period.

## Pros and Cons

**Pros:**

- Proven Phison E16 platform with DDR4 DRAM
- 5,000 MB/s reads — genuine Gen4 throughput
- Strong 800 TBW endurance for a 500GB drive
- Single-sided M.2 2280 fits nearly any laptop
- Kioxia 96L TLC NAND from a top-tier flash vendor
**Cons:**

- First-gen E16 controller capped at ~5,000 MB/s
- 28nm controller runs warmer than newer alternatives
- Limited availability outside Russia and CIS markets
- Warranty support unclear for international buyers
- Modern DRAM-less Gen4 drives match it for less money


## Verdict

The Smartbuy Impact E16 500GB is a textbook first-generation PCIe 4.0 SSD — fast enough to embarrass any Gen3 drive, but unable to match the 7,000 MB/s ceiling of second-generation Phison E18 or InnoGrit-powered competitors. For a boot drive in a mid-range build or a laptop upgrade, the 5,000 MB/s reads and 800 TBW endurance still get the job done in 2026. The main question is price: the Impact E16 only makes sense if it costs meaningfully less than a modern DRAM-less Gen4 drive like the WD Blue SN580 or Crucial P3 Plus, both of which offer similar real-world performance with newer, more efficient hardware. If you spot one at a deep discount on the Russian market, it is a perfectly serviceable pick.

## Frequently Asked Questions

### Does the Smartbuy Impact E16 work in a PS5?

Technically yes — it meets the PS5's 5,500 MB/s sequential read requirement with its 5,000 MB/s rating being close enough that real-world performance is acceptable. However, Sony officially recommends drives rated at 5,500 MB/s or higher, and the 500GB capacity is very small for a console game library. A 1TB or larger Gen4 drive is a better investment for PS5 use.

### Is Smartbuy a reliable SSD brand?

Smartbuy is a well-established brand in Russia and CIS countries. Their Impact E16 uses the same Phison E16 reference design and Kioxia NAND as drives from Sabrent, Corsair, and Gigabyte — the core hardware is identical. Reliability comes down to the Phison controller and Kioxia flash, both of which have strong track records.

### How does the Impact E16 compare to the newer Impact E18?

The Impact E18 (if Smartbuy released one) would use the second-generation Phison PS5018-E18 controller, which bumps sequential reads to ~7,400 MB/s and writes to ~7,000 MB/s. The E18 is built on a 12nm process (vs. 28nm for the E16), making it faster, cooler, and more power-efficient. The E16 is the budget-oriented first-generation alternative.

### Does this drive need a heatsink?

The included graphene heat spreader is sufficient for typical desktop use with moderate airflow. In a laptop or a small-form-factor case with limited ventilation, adding a slim aftermarket copper or aluminum heatsink will keep temperatures 5–10°C lower under sustained writes. The drive throttles at around 85°C, which is rarely reached in normal use.

### What is the actual usable capacity?

The 500GB model provides approximately 465 GB of usable space in Windows (binary GB vs. decimal GB). After formatting and a typical OS installation, expect roughly 400–420 GB of free space for applications and games.

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Last updated: 2026-05-23. Source: https://ssdrive.net/smartbuy-impact-e16-500-gb