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Adata XPG Mars 980 Blade 1TB
Western Digital WD Black SN7100 4TB

Adata XPG Mars 980 Blade 1TB Western Digital WD Black SN7100 4TB

Common Features

  • ✓ Both products are M2 type SSDs.
  • ✓ Both products are NVMe SSDs.
  • ✓ Both products use TLC SSD storage type.
  • ✓ Both products have a 5-year warranty period.
  • ✓ Both products do not have an integrated heatsink.
  • ✓ Both products do not support any bits of encryption.
  • ✓ Both products do not have RGB lighting.
  • ✓ Both products support PCIe NVMe interfaces.
  • ✓ Both products use NAND Flash memory technology.
  • ✓ Both products have a DRAM cache or equivalent.
  • ✓ Both products are compatible with NVMe drives.

Main Differences

  • • Sequential read speed is 14000 MB/s on Adata XPG Mars 980 Blade 1TB and 7250 MB/s on Western Digital WD Black SN7100 4TB.
  • • Random read speed is 1600000 IOPS on Adata XPG Mars 980 Blade 1TB and 900000 IOPS on Western Digital WD Black SN7100 4TB.
  • • Sequential write speed is 10000 MB/s on Adata XPG Mars 980 Blade 1TB and 6900 MB/s on Western Digital WD Black SN7100 4TB.
  • • Random write speed is 1650000 IOPS on Adata XPG Mars 980 Blade 1TB and 1350000 IOPS on Western Digital WD Black SN7100 4TB.
  • • Adata XPG Mars 980 Blade 1TB has a DRAM cache, while Western Digital WD Black SN7100 4TB uses HMB (Host Memory Buffer).
  • • Adata XPG Mars 980 Blade 1TB supports NVMe version 2, while Western Digital WD Black SN7100 4TB supports NVMe version 1.4.
  • • Adata XPG Mars 980 Blade 1TB has 1000GB of internal storage, while Western Digital WD Black SN7100 4TB has 4000GB of internal storage.
  • • Adata XPG Mars 980 Blade 1TB uses the Silicon Motion SM2508 controller, while Western Digital WD Black SN7100 4TB uses the Polaris 3 A101-000172-A1 controller.
  • • Adata XPG Mars 980 Blade 1TB supports PCIe version 5, while Western Digital WD Black SN7100 4TB supports PCIe version 4.
  • • Adata XPG Mars 980 Blade 1TB has 8 controller channels, while Western Digital WD Black SN7100 4TB has 4 controller channels.
  • • Terabytes Written (TBW) is 740 on Adata XPG Mars 980 Blade 1TB and 2400 on Western Digital WD Black SN7100 4TB.
Specs Comparison
Adata XPG Mars 980 Blade 1TB

Adata XPG Mars 980 Blade 1TB

Western Digital WD Black SN7100 4TB

Western Digital WD Black SN7100 4TB

Read speed:
sequential read speed 14000 MB/s 7250 MB/s
random read speed 1600000 IOPS 900000 IOPS

The Adata XPG Mars 980 Blade 1TB offers significantly higher sequential read speed compared to the Western Digital WD Black SN7100 4TB, with a value of 14000 MB/s versus 7250 MB/s. This shows a clear difference in raw sequential read performance between the two products.

For random read speed, the Adata XPG Mars 980 Blade 1TB also leads with 1600000 IOPS, while the Western Digital WD Black SN7100 4TB provides 900000 IOPS. Again, the Adata model outperforms the WD Black in terms of random read speed by a noticeable margin.

Overall, the Adata XPG Mars 980 Blade 1TB excels in both sequential and random read speeds when compared to the Western Digital WD Black SN7100 4TB based on the provided specifications.

Write speed:
sequential write speed 10000 MB/s 6900 MB/s
random write speed 1650000 IOPS 1350000 IOPS

The Adata XPG Mars 980 Blade 1TB outperforms the Western Digital WD Black SN7100 4TB in both sequential and random write speeds. For sequential write speed, the Adata drive offers 10000 MB/s, while the WD Black provides 6900 MB/s, showing a noticeable difference in favor of the Adata model.

In terms of random write speed, the Adata XPG Mars 980 Blade 1TB also leads with 1650000 IOPS, compared to the 1350000 IOPS of the Western Digital WD Black SN7100 4TB. This further emphasizes the Adata model's higher write performance across both sequential and random metrics.

Overall, based on the provided data, the Adata XPG Mars 980 Blade 1TB delivers superior write speeds in both sequential and random write tests compared to the Western Digital WD Black SN7100 4TB.

General info:
type M2 M2
SSD cache DRAM cache HMB (Host Memory Buffer)
Is an NVMe SSD ✓ ✓
NVMe version 2 1.4
internal storage 1000GB 4000GB
release date June 2025 March 2025
controller Silicon Motion SM2508 Polaris 3 A101-000172-A1
SSD storage type TLC TLC
PCI Express (PCIe) version 5 4
Controller channels 8 4
Terabytes Written (TBW) 740 2400
warranty period 5 years 5 years
Has an integrated heatsink ✕ ✕
bits of encryption supported 0 0
has RGB lighting ✕ ✕

The Adata XPG Mars 980 Blade 1TB and the Western Digital WD Black SN7100 4TB both share several similarities, but there are some key differences in their specifications. Both are M.2 NVMe SSDs, with the Adata model supporting NVMe version 2, while the WD Black uses NVMe version 1.4. The Adata model has a DRAM cache, while the WD Black relies on HMB (Host Memory Buffer) for caching.

In terms of storage capacity, the Adata XPG Mars 980 Blade 1TB offers 1000GB of internal storage, whereas the Western Digital WD Black SN7100 4TB offers a significantly larger 4000GB of internal storage. The Adata model is equipped with 8 controller channels, while the WD Black has only 4. The Adata drive also has a lower Terabytes Written (TBW) value at 740, compared to the WD Black's much higher TBW of 2400, suggesting a difference in endurance.

Both drives come with a 5-year warranty, do not feature integrated heatsinks, and lack RGB lighting. Neither product supports encryption. Overall, the Adata XPG Mars 980 Blade 1TB focuses on faster performance, while the Western Digital WD Black SN7100 4TB offers more storage and higher endurance.

Comparison Summary

This is a specification comparison between Adata XPG Mars 980 Blade 1TB and Western Digital WD Black SN7100 4TB. Both products are M2 type NVMe SSDs with TLC storage type, a 5-year warranty, and do not have an integrated heatsink or RGB lighting. However, there are key differences: Adata XPG Mars 980 Blade 1TB offers higher sequential read and write speeds (14000 MB/s and 10000 MB/s) compared to Western Digital WD Black SN7100 4TB (7250 MB/s and 6900 MB/s). The Adata model also supports NVMe version 2 and PCIe version 5, while the Western Digital drive uses version 1.4 and PCIe version 4. Additionally, Adata XPG Mars 980 Blade 1TB has a DRAM cache versus HMB in the Western Digital drive, and Adata's Terabytes Written (TBW) is 740 compared to 2400 for the WD model.