# ADATA XPG Mars 980 Blade 1TB — PCIe 5.0 NVMe SSD Review (2026)

The ADATA XPG Mars 980 Blade 1TB is a DRAM-equipped PCIe 5.0 NVMe SSD built around the Silicon Motion SM2508 controller, delivering 14,000 MB/s reads and the best random write performance in its class at a competitive price.

Quick answer: The XPG Mars 980 Blade 1TB is an excellent choice if you want a DRAM-equipped PCIe 5.0 SSD without paying flagship prices. Its random write performance leads the Gen5 category, making it arguably the best OS drive available today.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 5.0 |
| Controller | Silicon Motion SM2508 |
| Memory type | Micron 232-L TLC |
| DRAM cache | Yes |
| Sequential read | 14500 MB/s |
| Sequential write | 10000 MB/s |
| Random read IOPS | 1600000 |
| Random write IOPS | 1650000 |
| Endurance | 740 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

The Mars 980 Blade 1TB is rated for sequential reads up to 14,000 MB/s and writes up to 10000 MB/s over PCIe 5.0 x4. Random 4K performance reaches 1,600K read IOPS and 1,650K write IOPS. Independent reviews consistently confirm the drive meets or exceeds its rated sequential speeds in CrystalDiskMark, with the 2 TB model showing approximately 14,200 MB/s reads and 13,100 MB/s writes in benchmark testing.

The standout feature is random write performance — the Mars 980 Blade currently holds the best 4K random write results among Gen5 SSDs tested by several reviewers. This makes it exceptional as an OS drive, where operating systems perform large numbers of small write operations constantly. The DDR4 DRAM cache enables this advantage over DRAM-less and smaller-cache competitors.

Under sustained loads, the SLC cache on the 1TB model provides ample buffer for extended write bursts. After the cache fills, write speeds transition to native TLC rates, which remain strong thanks to the Micron B58R NAND's 2,400 MT/s interface speed. The SM2508 controller's 6 nm process keeps power draw and temperatures manageable, though the included heat spreader should be supplemented with motherboard M.2 cooling for extended heavy workloads.

## Endurance, TBW & Warranty

ADATA provides a 5-year warranty on the Mars 980 Blade, backed by an endurance rating of 740 TBW for the 1TB model. This is notably higher than the industry standard of 600 TBW per TB — ADATA rates it at 740 TBW per TB of capacity. At a typical 20 GB per day write workload, the 1TB drive would last over 100 years before reaching its TBW limit. The MTBF is rated at 2 million hours. Warranty support is handled through ADATA's regional service centres.

## Pros and Cons

**Pros:**

- Best-in-class 4K random write performance
- DDR4 DRAM cache (1 GB per TB)
- 14,000 MB/s sequential reads
- Competitive pricing for DRAM Gen5
- 5-year warranty with above-average TBW
**Cons:**

- Single-queue sequential reads trail rivals
- Double-sided PCB may not fit some slim laptops
- No bundled cloning software
- 1 TB model limited to 10,000 MB/s writes


## Verdict

The XPG Mars 980 Blade 1TB is an excellent choice if you want a DRAM-equipped PCIe 5.0 SSD without paying flagship prices. Its random write performance leads the Gen5 category, making it arguably the best OS drive available today.

Skip it if you need the highest possible sequential throughput in single-queue-depth transfers — the Samsung 9100 Pro and WD Black SN8100 edge ahead in that specific metric. The difference is small in practice.

The Crucial T710 and Lexar NM1090 Pro use the same SM2508 controller and offer similar performance. Choose the Blade if pricing is favourable in your region — and as of late 2025, it usually is. For most buyers, this is the best value DRAM-equipped Gen5 SSD on the market.

## Frequently Asked Questions

### Is the XPG Mars 980 Blade 1TB good for gaming?

Yes, the Mars 980 Blade 1TB delivers excellent gaming performance with 14,000 MB/s reads that handle DirectStorage-optimized titles. Load times in current games are near-instant, and the drive's strong random write performance benefits game installation, patching, and texture streaming. For pure gaming, you will not notice a difference between this and more expensive Gen5 drives.

### Does the Mars 980 Blade have a DRAM cache?

Yes. The Mars 980 Blade uses a dedicated DDR4 DRAM cache at a ratio of approximately 1 GB per 1 TB of capacity. This DRAM cache handles address mapping, which significantly improves random I/O performance compared to DRAM-less designs that rely on Host Memory Buffer. The DRAM cache is especially beneficial for OS boot drives and multitasking workloads.

### What is the TBW endurance of the 1TB Mars 980 Blade?

The Mars 980 Blade 1TB is rated at 740 TBW, which is higher than the typical 600 TBW per TB seen on most TLC SSDs. ADATA's 740 TBW per TB rating provides additional headroom for heavy write workloads. The 5-year warranty covers the drive until either the time period or the TBW limit is reached.

### Is the Mars 980 Blade compatible with the PS5?

Yes, the Mars 980 Blade 1TB fits the PS5's M.2 expansion slot, including the included aluminium heat spreader. The PS5 operates at PCIe 4.0 speeds, so the drive's maximum read speed is approximately 6,500 MB/s in the console — well above Sony's 5,500 MB/s recommended minimum. The double-sided PCB design fits within the PS5's clearance limits.

### Does the Mars 980 Blade need a heatsink?

The Mars 980 Blade ships with a thin aluminium heat spreader that provides adequate cooling for most workloads. For sustained heavy writes in a desktop with good airflow, this spreader is sufficient. However, adding the motherboard's M.2 heatsink on top is recommended for extended large-file transfers to prevent thermal throttling. In a PS5, the console's built-in cooling is sufficient.

### How does the Mars 980 Blade compare to the Samsung 9100 Pro?

The Mars 980 Blade and Samsung 9100 Pro are both DRAM-equipped PCIe 5.0 SSDs with the SM2508 controller, but the 9100 Pro uses Samsung's own in-house V-NAND and firmware optimizations. The Samsung generally achieves slightly higher single-queue sequential read speeds. The Mars 980 Blade matches or exceeds it in random write performance and typically costs significantly less. Both are excellent drives; the choice depends on pricing and brand preference.

### Is the 4 TB Mars 980 Blade slower than the 2 TB?

No. The 4 TB Mars 980 Blade matches the 2 TB model in sequential reads (14,000 MB/s) and writes (13,000 MB/s). Random read IOPS are slightly lower on the 4 TB (1,950K vs 2,000K), but the difference is negligible in real-world use. The 4 TB model benefits from higher NAND parallelism for sustained write performance and offers the highest endurance at 2,960 TBW.

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Last updated: 2026-06-08. Source: https://ssdrive.net/adata-xpg-mars-980-blade-1-tb