SP Elite 32GB

  • Obtained from: Amazon
  • Advertised capacity: 32GB
  • Logical capacity: 31,096,569,856 bytes
  • Physical capacity: 31,096,569,856 bytes
  • Fake/skimpy flash: Skimpy (2.82% skimp)
  • Protected area: 83,886,080 bytes
  • Adjusted skimp: 2.56%
  • Speed class markings: Class 10, U1
  • CID data:
    • Manufacturer ID: 0x9f
    • OEM ID: 0x5449 (ASCII: TI)
    • Product name: 0x5350434320 (ASCII: SPCC )
    • Product revision: 0x12
Sample #123Average
Price paid$9.99$6.50$6.49$7.66
Serial number0x088601bc0x668603ca0x668603ccN/A
Manufacture dateNov 2023Jan 2009Jan 2009N/A
Sequential read speed (MB/sec)92.2892.2989.2291.26
Sequential write speed (MB/sec)23.4623.3917.5321.46
Random read speed (IOPS/sec)1,210.291,267.931,270.311,249.51
Random write speed (IOPS/sec)256.14250.12260.65255.64
Read/write cycles to first errorNot yet determinedNot yet determinedNot yet determinedNot yet determined
Read/write cycles to complete failureNot yet determinedNot yet determinedNot yet determinedNot yet determined
Total days to complete failureNot yet determinedNot yet determinedNot yet determinedNot yet determined
Card reader usedJJS CR-UTC4ACJJS CR-UTC4ACJJS CR-UTC4ACN/A
Package frontN/A
Package backN/A
Card frontN/A
Card backN/A

Discussion

3D NAND is a newer flash memory technology where transistors are built up in layers, allowing for greater memory density. In fact, Branch Education did an excellent video on SSDs where they went into how 3D NAND technology works and is produced. Since it’s a newer technology, I wanted to see how it compares to traditional (2D) NAND. This was the first one I found that advertised itself as 3D NAND and was within my budget. Admittedly I’m not very familiar with Silicon Power, but they’re a member of the SD Card Association, so I’ll lump these cards in with the “Name Brand” category.

You might notice the difference in price, as well as the fact that two of them have CID data indicating that they were manufactured in 2009. What I purchased was a single card and a two-pack, as the two-pack was only a few dollars more than the single card. Of course, what Amazon sent me was just two single cards (each in its own packaging) together in an envelope. I believe the two that have their manufacture date set to 2009 were from this pack, but I didn’t keep track of which ones came from the two-pack, so I can’t be 100% sure. Why do they have their manufacture date set to 2009? No clue. But I’m pretty sure the chances that they were actually manufactured in 2009 are next to nil.

Performance on these cards was a little disappointing. Sequential read speeds were above average, but all other metrics were below average. All measurements came in within one standard deviation of average. Is this a factor of the fact that this is a 3D NAND card? No clue — I might have to test some of SP’s other (2D NAND) models to figure that out.

All three cards are currently undergoing endurance testing. None have made it to the 2,000 read/write cycle mark yet. They are currently expected to get there sometime in August 2024.

June 3, 2024

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