# PCIe Gen 5 Entry Point: Fast Enough to Change How You Think About Storage (2026)

The Corsair MP700 PRO 1TB is the entry point into the MP700 PRO family, pairing the Phison PS5026-E26 controller with 2GB of DDR4 cache to reach 11,700 MB/s sequential reads on PCIe 5.0 x4.

Quick answer: The Corsair MP700 PRO 1TB is a focused PCIe 5.0 drive for systems that need a fast OS and primary game volume without the capacity overhead of a larger model. The Phison E26 controller, Micron B58R TLC NAND, and 2GB DDR4 cache deliver consistent random performance and 11,700 MB/s sequential reads that outpace any Gen 4 drive. The main trade-offs are the slower write speed relative to the 2TB and 4TB (9,600 vs 11,800 MB/s) and the need to source cooling separately. For a dedicated boot and primary storage role on a Gen 5 platform, the 1TB hits its target without excess.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 5.0 |
| Controller | Phison PS5026-E26 8 Channel |
| Memory type | Micron 232-L TLC |
| DRAM cache | Yes |
| Sequential read | 11700 MB/s |
| Sequential write | 9600 MB/s |
| Random read IOPS | 1400000 |
| Random write IOPS | 1500000 |
| Endurance | 700 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Corsair rates the MP700 PRO 1TB at 11,700 MB/s sequential read and 9,600 MB/s sequential write. Random performance is rated at 1.4 million IOPS read and 1.5 million IOPS write, measured at QD32. These figures are specific to the 1TB model — the 2TB and 4TB variants reach 12,400 MB/s reads and 11,800 MB/s writes due to greater NAND parallelism from more flash dies.

In practice, 11,700 MB/s sequential read is fast enough to fully utilize PCIe 5.0 x4 bandwidth for large sequential transfers: game installs, large file copies, and video project media. The 9,600 MB/s write speed, while lower than the higher-capacity models, still outpaces any PCIe 4.0 drive and handles large writes without meaningful hesitation.

The 2GB DDR4-4266 cache buffer absorbs small random writes efficiently, keeping 4K random performance strong under typical desktop workloads. Sustained write performance eventually drops to NAND native speed once the SLC write cache fills, which is standard behaviour for TLC drives at this capacity. For the workloads this drive targets — OS, applications, and games — the SLC cache is rarely exhausted in a single session.

## Endurance, TBW & Warranty

Corsair covers the MP700 PRO 1TB with a five-year limited warranty and an endurance rating of 700 TBW. At an average desktop write rate of 30–40GB per day, 700 TBW represents more than 17 years of projected lifespan — far beyond the warranty period itself. The 700 TBW on the 1TB model follows standard TBW-per-TB scaling: the 2TB carries 1,400 TBW and the 4TB carries 3,000 TBW. Corsair's warranty covers manufacturing defects and drive failure within the endurance threshold. The MTBF rating is 2,000,000 hours. For a primary OS and game drive that sees moderate daily writes, the endurance ceiling is not a limiting factor.

## Pros and Cons

**Pros:**

- 11,700 MB/s sequential reads — Gen 5 performance on supported PCIe 5.0 x4 platforms
- Phison PS5026-E26 8-channel controller with NVMe 2.0 support
- Micron B58R 232-layer 3D TLC NAND with 2,400 MT/s interface speed
- 2GB DDR4-4266 DRAM cache maintains strong random IOPS under typical workloads
- 700 TBW endurance rating pairs with a 5-year warranty
- M.2 2280 form factor fits all standard desktop and workstation motherboard slots
**Cons:**

- Write speed of 9,600 MB/s is noticeably lower than the 11,800 MB/s on the 2TB and 4TB variants
- No heatsink included — PCIe 5.0 controllers need active cooling to avoid throttling
- 1TB is a tight fit for a gaming primary drive with multiple large titles installed
- Crucial T705 1TB outperforms on sequential reads at a comparable price point
- Full rated speed requires a PCIe 5.0 x4 M.2 slot — older platforms see no benefit over Gen 4


## Verdict

The Corsair MP700 PRO 1TB is a focused PCIe 5.0 drive for systems that need a fast OS and primary game volume without the capacity overhead of a larger model. The Phison E26 controller, Micron B58R TLC NAND, and 2GB DDR4 cache deliver consistent random performance and 11,700 MB/s sequential reads that outpace any Gen 4 drive. The main trade-offs are the slower write speed relative to the 2TB and 4TB (9,600 vs 11,800 MB/s) and the need to source cooling separately. For a dedicated boot and primary storage role on a Gen 5 platform, the 1TB hits its target without excess.

## Frequently Asked Questions

### How fast is the Corsair MP700 PRO 1TB compared to the 2TB version?

The 1TB model is rated at 11,700 MB/s sequential read and 9,600 MB/s sequential write, while the 2TB reaches 12,400 MB/s read and 11,800 MB/s write. The IOPS difference is also real: 1.4M/1.5M on the 1TB versus 1.5M/1.6M on the 2TB. The gap comes from NAND parallelism — more flash dies operating in parallel on higher-capacity models. For most workloads the difference is imperceptible, but it shows up in sustained sequential benchmarks and large file transfers.

### Does the Corsair MP700 PRO 1TB include a heatsink?

No. The base MP700 PRO 1TB ships without a heatsink. Corsair sells a variant with an air cooler and a Hydro X waterblock version for liquid-cooled builds. PCIe 5.0 x4 controllers generate more heat than Gen 4 counterparts, so using the bare drive without cooling risks thermal throttling under sustained writes. Most Z790 and X870E motherboards include M.2 heatsinks that fit the 2280 slot and are sufficient for typical desktop workloads.

### What is the TBW endurance rating for the 1TB model?

Corsair rates the MP700 PRO 1TB at 700 TBW. At a realistic daily write rate of 30–40GB, that represents 17–23 years of projected lifespan — well beyond the five-year warranty. Endurance scales across the range: 1,400 TBW on the 2TB and 3,000 TBW on the 4TB. For an OS and gaming drive with typical write patterns, 700 TBW is not a practical concern.

### Does the MP700 PRO 1TB require a PCIe 5.0 slot?

The drive works in any PCIe x4 NVMe M.2 slot, but it only achieves its rated 11,700 MB/s in a PCIe 5.0 x4 slot. In a PCIe 4.0 x4 slot, performance is capped near 7,000 MB/s — similar to a high-end Gen 4 SSD. Full Gen 5 performance requires Intel 12th gen or later on a Z790/Z890 board, or AMD Ryzen 7000/9000 on an X670E or X870E board with a PCIe 5.0 M.2 slot.

### What NAND does the Corsair MP700 PRO use?

The MP700 PRO uses Micron B58R 232-layer 3D TLC NAND. B58R is Micron's Gen 5 NAND with a 2,400 MT/s interface speed that the Phison E26 controller fully leverages. TLC (triple-level cell) stores three bits per cell, which is the standard for high-performance consumer SSDs — providing a better endurance and performance balance than QLC while keeping cost lower than SLC or MLC.

### How does the MP700 PRO 1TB compare to the WD Black SN850X and Samsung 990 Pro?

The WD Black SN850X 1TB tops out at 7,300 MB/s sequential read and the Samsung 990 Pro at 7,450 MB/s — both PCIe 4.0 x4 drives. The MP700 PRO 1TB at 11,700 MB/s is in a different tier for sequential transfers. Real-world gaps narrow for everyday desktop tasks like application launches and game loading, where NVMe performance differences above roughly 5,000 MB/s have diminishing returns. The MP700 PRO is the stronger choice for workflows involving large sequential transfers.

### What warranty does the Corsair MP700 PRO 1TB carry?

Corsair provides a five-year limited warranty on the MP700 PRO 1TB, backed by 700 TBW endurance and a 2,000,000-hour MTBF rating. The warranty covers manufacturing defects and premature drive failure within the rated endurance threshold. RMA processing is handled directly through Corsair's website.

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Last updated: 2026-08-17. Source: https://ssdrive.net/corsair-mp700-pro-1-tb