The WD Blue SN580 is the perfect low-cost NVMe SSD that takes the winning formula and makes it even better. With a decent range of capacities and solid support, it performs well enough, making it a strong contender for our list of the best SSDs. It’s relatively efficient, and its single-sided design makes it perfect for laptops. It’s nothing new, but if the price is right, it’s an easy buy for a budget drive if you’re looking for a cheap upgrade that won’t disappoint.
the success of Blue SN570 and Black SN770 WD has inspired the former to revamp with the Blue SN580. The SN580 is essentially an updated SN570, just like the SN570 has been updated. Blue SN550inherited from Blue SN500. SN550 was very popular, but then WD appeared changed That flush changes performance negatively. Now back to the SN580. The SN580 migrates to the PCIe 4.0 interface for more bandwidth, uses a new caching scheme for better burst performance, and generally keeps or improves on the SN570 in every way.
The warranty remains the same, and WD’s choice of software remains the same. However, the SN580 is more efficient than his SN570, which is always a welcome development. The drive is also borrowed from: Black SN850 A new cache scheme improves most of the SN570’s relatively small cache. Perhaps the biggest drawback to the SN580 is its otherwise unattractiveness. It doesn’t set new records, nor is it as fast as his existing 4.0 drives in its class.certainly better than that Black SN750 SE, but it’s not a big deal. Still, you can buy with confidence.
specification
| product | 250GB | 500GB | 1TB | 2TB |
|---|---|---|---|---|
| Pricing | $27.99 | $31.99 | $49.99 | $109.99 |
| form factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| interface/protocol | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 5.0 x4 |
| controller | Sandisk proprietary | Sandisk proprietary | Sandisk proprietary | Sandisk proprietary |
| drum | N/A (HMB) | N/A (HMB) | N/A (HMB) | N/A (HMB) |
| flash memory | 112-layer Kioxia TLC (BiCS5) | 112-layer Kioxia TLC (BiCS5) | 112-layer Kioxia TLC (BiCS5) | 112-layer Kioxia TLC (BiCS5) |
| sequential read | 4,000MB/s | 4,000MB/s | 4,150MB/s | 4,150MB/s |
| sequential light | 2,000MB/s | 3,600MB/s | 4,150MB/s | 4,150MB/s |
| random read | 240K | 450K | 600K | 600K |
| random write | 470K | 750K | 750K | 750K |
| safety | Pyrite 2.01 (without SEDs) | Pyrite 2.01 (without SEDs) | Pyrite 2.01 (without SEDs) | Pyrite 2.01 (without SEDs) |
| Endurance (TBW) | 150TB | 300TB | 600TB | 900TBW |
| part number | WDS250G3B0E | WDS500G3B0E | WDS100T3B0E | WDS200T3B0E |
| guarantee | 5 years | 5 years | 5 years | 5 years |
The WD Blue SN580 (hereafter simply SN580) is available in 250GB, 500GB, 1TB, and 2TB. This matches the SN570, but his 2TB model came later on this drive, presumably because he wanted a 1Tb BiCS5 die. It also has 600 TB of write endurance per 1 TB of flash (excluding the 900 TB of 2 TB), which is plenty, especially for budget drives. This drive does not support hardware encryption, but has a 5 year warranty. MSRPs for each capacity are $27.99, $31.99, $49.99, and $109.99. Actual selling prices may be lower than these in order to be more competitive with the SN770.
SN580 can achieve up to 4,150 / 4,150 MB/s for sequential reads and writes and 600K / 750K IOPS for random reads and writes. The former is ostensibly an improvement over the SN570, but a relatively small amount of gain is due to his switch to the 4.0 interface rather than any major internal changes. The SN580 is only available in the M.2 2280 form factor, while his OEM version of the drive (probably Blue SN5000) comes in 2242 and 2230 under the SN5000S label.
Software and accessories
WD offers two downloads for SSDs. The first is the Western Digital SSD Dashboard (Toolbox), which helps you monitor drive health, handle firmware updates, and access other utilities. The second is the version of Acronis True Image for backing up your data.
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The SN580 contains an SSD controller, one NAND package, and a power management integrated circuit (PMIC). WD has traditionally used Active-Semi PMIC in their Blue SSDs, a manufacturer now owned by Qorvo.
The drives are DRAM-less, but WD did well without DRAM on both the SN570 and SN770. The original his SN500 arrived without his HMB explicitly enabled, which also performed pretty well. This is probably due to more SRAM available for metadata and mapping within the ASIC itself. In any case, HMB is sufficient for the intended “light” workload.
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This drive uses WD’s proprietary controller technology under the SanDisk label. This 4-channel controller is similar to the one found in many of WD’s other NVMe SSDs, including the Green SN350, Blue SN500, Blue SN550, Blue SN570, and Black SN770. It seems to run at a lower bus rate than the SN770, presumably because it’s needed to differentiate the drives. The flash is the same 112-layer TLC (BiCS5) used to power the SN570 and SN770.
The SN580 features nCache 4.0, first introduced in the WD Black SN850. This large hybrid cache differs from that of the original SN570 and previous Blue NVMe SSDs. The original Blue cache was static, so it was limited in size, but had good TLC write performance after caching. WD has settled for higher burst performance with the SN580, which differentiates it from the SN570. This also increases efficiency as many tasks are completed faster. The SN770’s cache is slightly different as it evokes his TLC mode of the mid-ground, but we may see an updated mid-range Black with nCache 4.0 in the future.
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