Product Comparison: Western Digital Green (WDS120G2G0A) vs Western Digital Blue 3D NAND

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General Specifications
Green (WDS120G2G0A)
Blue (WDS500G2B0A)
About the Product
For use in laptops and desktop computers, WD Green SSDs offer high performance and reliability to boost your daily computing activities. With comprehensive WD F.I.T. Lab certification, and available in 2.5”/7mm cased or M.2 2280 models, WD Green solid state drives are compatible with most PCs. The free WD SSD Dashboard lets you monitor your storage, and when combined with the 3-year limited warranty, upgrading your digital storage is worry-free.
The WD Blue 3D NAND SATA SSD utilizes 3D NAND technology for capacities up to 2TB* with enhanced reliability. Featuring an active power draw up to 25% lower** than previous generations of WD Blue SSDs, you’re able to work longer before recharging your laptop, while sequential read speeds up to 560MB/s and sequential write speeds up to 530MB/s give the speed you want for your most demanding computing applications.*** Combined with the free, downloadable WD SSD Dashboard software and a 5-year limited warranty, you can confidently upgrade your system to the WD Blue 3D NAND SATA SSD.
Key Specs
120 GB
1000 GB
Read Speed
545 Mb/s
560 Mb/s
Write Speed
465 Mb/s
530 Mb/s
What customers say about "Key Specs"
Western Digital Green (WDS120G2G0A) WD 120 GB Internal SSD 2.5 Inch SATA
  • This solid state drive is one of the cheapest 120GB drives available, making it appealing for older or basic office PCs.
  • Booting and loading applications is faster and the OS feels more responsive.
  • It has all the storage capacity it's supposed to. Easy to install but I think it would be nice to include the retaining screw it requires.
  • The read performance is acceptable though write is disappointing.
  • Commonly SSD performance degrades as you fill the capacity and unfortunately this drive gets hit particularly hard.
Western Digital Blue 3D NAND SATA 2.5-inch Internal SSD
  • This SSD is approximately $50 cheaper than it's predecessor and delivers same fantastic results!
  • I would highly recommend this SSD Hard Drive for all older PC performance related problems.
  • Fast and reliable, WD always had a good reputation.
  • The performance increase has been stunning and I couldn't beat the price.
  • Speeds up system login and apps open faster. Good SSD!
Size & Weight
0.27 in.
0.27 in.
3.95 in.
3.95 in.
2.75 in.
2.75 in.
1.12 oz.
1.3 oz.
Form Factor
Memory Chip Type
Encryption Algorithm
AES 256-bit
AES 256-bit
Shock-resistant, Ultra-low power-draw, Downloadable WD SSD Dashboard
Leading-edge relibility, Broad compatibility, Downloadable wd ssd dashboard and acronis software
What customers say about "Features"
Western Digital Green (WDS120G2G0A) WD 120 GB Internal SSD 2.5 Inch SATA
  • With available SATA interface, these drives offer high-performance, low power consumption, and cool operation.
  • The Green version have a SATA version 3 interface. Old PC's like my DV2 have a SATA Version 2 interface (compatable with V3) that runs at half the speed of V3.
  • SLC caching boosts write performance to quickly perform everyday tasks. Performance is really superb.
  • Ultra low power draw so you can use your laptop PC for longer periods of time. It is very very important feature for me!
  • The device arrived in a standard retail box with a few instruction on the packaging but no software or any USB to SATA connection cable to facilitate the transfer of data and operating system.
Western Digital Blue 3D NAND SATA 2.5-inch Internal SSD
  • No errors, fast for SATA interface. No failures for me.
  • If you're looking for an SSD with a SATA interface take a long look at this one - I think it's worth it.
  • As the SATA interface lifecycles is coming to an end, these are about as good as you're going to get in this price segment.
  • Read/Write speeds will saturate the SATA III interface.
  • Still limited by SATA3 performance bottlenecks and overhead, which aren't necessary on a PCIe device. NVMe is superior in that regard.
Warranty / Certifications
Manufacturer Warranty
3 year(s)
5 year(s)
Other Information

Price History

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