# Gigabyte Aorus Gen4 1TB Review — The PCIe 4.0 Original, Still Standing (2026)

The Gigabyte Aorus Gen4 1 TB was one of the drives that introduced PCIe 4.0 to consumers in 2019, and while modern drives are faster, its 1,800 TBW endurance rating and copper heatsink give it a second life as a high-endurance workhorse at clearance prices.

Quick answer: The Gigabyte Aorus Gen4 1 TB in 2026 is a smart buy at the right price. If you find it on clearance for less than a modern budget PCIe 4.0 drive, you get a DRAM-backed 8-channel design with a genuinely effective copper heatsink, 1,800 TBW of endurance, and a 5-year warranty from an established manufacturer. The trade-offs — slower peak throughput than current-gen drives, high power draw, and desktop-only form factor — matter less if endurance and reliability are what you are shopping for. It is not the fastest PCIe 4.0 drive anymore, but it is one of the most overbuilt, and that ages better than peak throughput numbers.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 8 Channel |
| Memory type | Kioxia 96-L TLC |
| DRAM cache | Yes |
| Sequential read | 5000 MB/s |
| Sequential write | 4000 MB/s |
| Random read IOPS | 750000 |
| Random write IOPS | 700000 |
| Endurance | 1800 TBW |
| MTBF | 1800000 |
| Warranty | 5 years |

## Performance

Rated at 5,000 MB/s reads and 4,400 MB/s writes with 750,000 random read IOPS and 700,000 random write IOPS, the 1 TB Aorus Gen4 delivers PCIe 4.0 throughput that was class-leading in 2019 and remains entirely adequate for gaming and general productivity in 2026. The 8-channel E16 controller with DRAM cache handles mixed read/write workloads more gracefully than modern 4-channel DRAM-less designs, even if those newer drives post higher peak sequential numbers.

The copper heatsink is not cosmetic — the E16 on 28 nm draws more power than contemporary controllers, and under sustained write loads the drive needs the thermal mass and fin area to avoid throttling. In a well-ventilated desktop case, the heatsink keeps the drive within operating range indefinitely. In a cramped ITX build or behind a GPU backplate, the drive will run warm and may throttle, though the copper sink gives it more headroom than aluminium alternatives.

## Endurance, TBW & Warranty

Gigabyte covers the Aorus Gen4 1 TB with a 5-year warranty and a rated endurance of 1,800 TBW — triple the ~600 TBW typical of modern 1 TB consumer SSDs. At 50 GB per day, that endurance budget stretches to nearly 100 years. The 1.8 million hour MTBF is consistent with the drive's premium positioning at launch. Gigabyte's RMA infrastructure is well established, and unlike budget or white-label alternatives, a warranty claim on this drive is likely to be processed by a company that actually exists and responds to customers.

## Pros and Cons

**Pros:**

- 1,800 TBW endurance — triple the rating of most modern 1 TB consumer SSDs
- Dedicated DDR4 DRAM cache on an 8-channel Phison E16 controller
- Full copper heatsink with 27 fins — genuine thermal performance
- 5-year warranty backed by Gigabyte's global RMA infrastructure
- Years of firmware maturity on a proven controller platform
**Cons:**

- 5,000/4,400 MB/s throughput is outpaced by current-gen budget PCIe 4.0 drives
- 11.4 mm thick copper heatsink — not compatible with laptops or the PS5
- E16 controller on 28 nm draws more power than modern alternatives
- First-gen PCIe 4.0 — no PCIe 5.0, no DirectStorage optimisations beyond NVMe 1.3
- Only worth buying at clearance pricing; at regular retail, newer drives are faster for the same money


## Verdict

The Gigabyte Aorus Gen4 1 TB in 2026 is a smart buy at the right price. If you find it on clearance for less than a modern budget PCIe 4.0 drive, you get a DRAM-backed 8-channel design with a genuinely effective copper heatsink, 1,800 TBW of endurance, and a 5-year warranty from an established manufacturer. The trade-offs — slower peak throughput than current-gen drives, high power draw, and desktop-only form factor — matter less if endurance and reliability are what you are shopping for. It is not the fastest PCIe 4.0 drive anymore, but it is one of the most overbuilt, and that ages better than peak throughput numbers.

## Frequently Asked Questions

### Does the Gigabyte Aorus Gen4 1TB have DRAM?

Yes. The Phison E16 controller includes a dedicated DDR4 DRAM cache that stores the logical-to-physical mapping table on the drive. This gives the Aorus Gen4 an advantage in sustained mixed read/write workloads compared to modern DRAM-less HMB designs, even though those newer drives often post higher peak sequential numbers.

### Is the Gigabyte Aorus Gen4 1TB good for gaming?

For gaming, the 5,000 MB/s reads handle everything current titles demand, and the DRAM cache keeps random I/O responsive during mixed loads like background updates alongside active gameplay. Game load times will be within a second of faster PCIe 4.0 drives. The main gaming limitation is the desktop-only form factor — if you need a laptop or PS5 drive, the thick copper heatsink rules this one out.

### What is the TBW endurance of the Gigabyte Aorus Gen4 1TB?

Gigabyte rates the 1 TB model at 1,800 TBW, which is exceptionally high for a consumer drive — most modern 1 TB SSDs carry 600 TBW ratings. At 50 GB of writes per day, 1,800 TBW provides nearly 100 years of endurance. This rating reflects the drive's premium positioning at launch and the durability of Kioxia's 96-layer TLC NAND.

### Can I use the Gigabyte Aorus Gen4 in a laptop?

No. The copper heatsink assembly is 11.4 mm thick, which exceeds the M.2 slot clearance of essentially every laptop. The drive is designed for desktop use. If you need a laptop PCIe 4.0 drive, look for a bare M.2 2280 single-sided design without a pre-installed heatsink, such as the Samsung 980 Pro or WD Black SN850.

### Is the Gigabyte Aorus Gen4 still worth buying in 2026?

Only at clearance or used pricing significantly below modern alternatives. At $40–50 for the 1 TB model, the combination of DRAM cache, 1,800 TBW endurance, copper heatsink, and a 5-year Gigabyte warranty makes a compelling case for a secondary or boot drive in a desktop. At anywhere near original MSRP or close to the price of a newer Phison E18 or E21T drive, the modern alternatives offer better performance per dollar.

### Does the Aorus Gen4 need the copper heatsink?

Yes — it is not cosmetic. The Phison E16 controller on 28 nm was power-hungry by the standards of its time and draws more watts than any modern PCIe 4.0 controller. The copper heatsink is necessary to prevent thermal throttling under sustained loads. Do not remove it or attempt to use the drive bare, especially in a case with limited airflow.

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Last updated: 2026-08-12. Source: https://ssdrive.net/gigabyte-aorus-gen4-1-tb