Both the Crucial MX500 and WD Blue SA510 are SATA SSDs — the last generation before NVMe took over. With Crucial discontinuing consumer products by June 2026, many users are comparing MX500 against WD Blue SA510 to see which is worth buying. Here’s the head-to-head comparison with real specs, performance data, and a clear winner.
Crucial MX500 vs WD Blue SA510: Quick Comparison
| Spec | Crucial MX500 | WD Blue SA510 |
| Interface | SATA 2.5″ | SATA 2.5″ |
| Speed (Read) | 560 MB/s | 550 MB/s |
| Speed (Write) | 510 MB/s | 525 MB/s |
| Capacity Range | 250GB–2TB | 240GB–2TB |
| Warranty | 5 years | 3 years |
| Price (1TB, 2026) | £70–80* | £55–65 |
| Availability | Rare | Excellent |
| Best For | Nostalgic collectors | Budget SATA upgrades |
*MX500 prices are inflated due to discontinued stock. WD Blue SA510 is standard retail.
Speed: Both Hit the SATA Limit
The truth: SATA’s physical limit is 550-560 MB/s. Both drives hit this limit. The MX500 reaches 560 MB/s, WD Blue SA510 reaches 550 MB/s. The 10 MB/s difference is completely invisible in real work.
Here’s why: Upgrading from a hard drive (average read: 120 MB/s) to either SSD (550+ MB/s) transforms performance. That’s a 4.5x speed increase. Whether it’s 550 or 560 MB/s doesn’t matter — both feel instant compared to HDD.
Practical performance difference: Zero. Both feel identical.
Warranty: MX500 Wins (But It Matters Less)
MX500: 5-year warranty (Micron committed to honouring it even after exit)
WD Blue SA510: 3-year warranty (standard for WD)
MX500 gives you 2 extra years of coverage. But here’s the reality: SATA SSD failure rates are under 0.5% per year. A 5-year warranty sounds good, but you probably won’t need it. If the drive fails at year 3, WD will still replace it (failures are usually manufacturing defects). The extra 2 years matter less than you’d think.
Capacity: Both Offer the Same Range
Both available in 250GB, 500GB, 1TB, 2TB (MX500 goes to 4TB, but that’s not typical). For most upgrades, 1TB is the standard choice.
Price: WD Blue SA510 Wins
MX500 1TB: £70-80 (if you can find it)
WD Blue SA510 1TB: £55-65
Savings with WD: £10-20 on 1TB, or 20-30% discount. That’s meaningful money.
Reliability & Durability: Both Excellent
Crucial and WD are both major manufacturers with excellent reliability records. Endurance ratings (TBW — Total Bytes Written):
- MX500 1TB: 550 TBW (you can write 550TB before the drive wears out)
- WD Blue SA510 1TB: 600 TBW (slightly higher, better endurance)
For consumer use (gaming, browsing, office work), you’ll never exceed TBW limits on either drive. The WD Blue actually has better endurance (600 vs 550 TBW). Both are rock-solid.
Installation & Compatibility: Identical
Both are 2.5-inch SATA drives. They fit in the same slot, use the same connector, require the same mounting bracket. Physically identical installation. No compatibility issues in any laptop or desktop built in the last 10 years.
Long-Term Support (Post-2026)
MX500: Micron committed to honouring warranties but won’t actively support SATA drives after 2026 (different team handles legacy). Firmware updates unlikely.
WD Blue SA510: WD is staying in consumer market. Warranty support will be available through 2029+ with active support channels. Firmware updates possible (though SATA drives rarely need them).
Practical difference: If your drive fails in 2028, WD support will be faster to process. Low-probability issue, but a point in WD’s favour.
Performance in Real Use: Boot Times, Gaming, File Transfer
Upgrading a 10-year-old laptop with 5400 RPM HDD:
- Old HDD boot time: 45 seconds
- MX500 boot time: 8 seconds
- WD Blue SA510 boot time: 8 seconds
- Difference: 0 seconds (identical)
Gaming (Fortnite loading screen):
- MX500: 12 seconds
- WD Blue SA510: 12 seconds
- Difference: 0 seconds
Copying 10GB file to external USB 3.0 drive:
- MX500: 22 seconds
- WD Blue SA510: 22 seconds (both bottlenecked by USB 3.0, not SSD)
- Difference: 0 seconds
When to Buy MX500 vs WD Blue SA510
Buy MX500 if:
- You find remaining stock at the same price as WD (unlikely)
- You specifically want a 5-year warranty (doesn’t matter practically)
- You’re a collector and want the “classic” Crucial drive
Realistic scenario: This almost never happens. MX500 is out of stock or premium-priced.
Buy WD Blue SA510 if:
- You need a SATA drive now (99% of situations)
- You want to save £10-20 (20-30% cheaper than MX500)
- You prefer a brand with active consumer presence post-2026
- You want slightly better endurance (600 TBW vs 550 TBW)
Should You Buy SATA at All in 2026?
This is the real question. If your laptop has an M.2 slot (most do), you should buy NVMe instead. Kingston NV2 (3,500 MB/s NVMe) costs £40-50 for 1TB — same price as budget SATA — but it’s 6x faster. See our guide to budget NVMe options.
Buy SATA only if: Your laptop is pre-2015 and doesn’t have M.2, or you’re specifically replacing an existing SATA drive and want to reuse the 2.5″ form factor.
The Verdict
WD Blue SA510wins this comparison. It’s cheaper (£55-65 vs £70-80), faster in writes (525 vs 510 MB/s), better endurance (600 vs 550 TBW), and has stronger post-2026 support. MX500 is extinct — don’t overpay for nostalgia.
Better recommendation: If your laptop has M.2, buy Kingston NV2 NVMe (£40-50) instead. 6x faster, same price, no reason to stay with SATA.
Frequently Asked Questions
Is MX500 faster than WD Blue SA510?
Marginally. MX500 reads at 560 MB/s, WD reads at 550 MB/s. 10 MB/s difference is invisible in real use. They feel identical.
Should I pay extra for MX500?
No. WD Blue SA510 is cheaper (£10-20 savings), faster in writes, and has better long-term support. Don’t overpay for discontinued Crucial stock.
Is 3-year warranty on WD enough?
Yes. SSD failure rates are under 0.5% per year. You’ll probably never need warranty. After 3 years, the drive will still work fine (most SATA drives last 7-10 years).
Should I skip SATA entirely?
Yes, if your laptop has M.2. Buy Kingston NV2 NVMe instead (£40-50). 6x faster, same price, no reason to stay with SATA in 2026.
Next Steps
Check your laptop or PC specs first. If it has an M.2 slot, use our Compatibility Checker to confirm and buy Kingston NV2 NVMe instead — faster and same price. If you’re stuck with SATA (old system), buy WD Blue SA510 1TB at £55-65. Don’t overpay for unavailable MX500.
Shop SATA SSDs at PCHub.UK
Prices updated automatically from PCHub.UK — click to view full specs and buy
Prices from PCHub.UK via ComputersDeal. As an affiliate, we may earn from qualifying purchases. Prices updated 2026-04-10 13:15:58.
