SSDs / Compare
Kingston KC3000 vs Silicon Power UD90
Product A: Kingston
42 of 63 known
Change Kingston KC3000
Product B: Silicon Power
26 of 63 known
Change Silicon Power UD90
29 of 55 fields differ
- 10 different values
- 19 known for one only
- 11 the same
- 15 missing for both
Biggest differences
Each bar uses the scale of all 84 SSDs.
- EnduranceA: 1,600TBB: 600TBKingston is 1,000 TB higher.
- Write speedA: 7,000MB/sB: 4,800MB/sKingston is 2,200 MB/s higher.
- Read speedA: 7,000MB/sB: 5,000MB/sKingston is 2,000 MB/s higher.
Weight
0 to 150 g
All 63 fields
Every value links to where we found it.

General
4 of 9 differ
Series
Not available
Not available
Model numbers
SKC3000S/512G, SKC3000S/1024G, SKC3000D/2048G, SKC3000D/4096G3Reviewtomshardware.com/reviews/kingston-kc3000-m2-ssd-reviewRead 15 October 2026Spec table part numbers SKC3000S/512G, SKC3000S/1024G, SKC3000D/2048G and SKC3000D/4096G. Geizhals agrees
SP250GBP44UD9005, SP500GBP44UD9005, SP500GBP44UD9005AY, SP01KGBP44UD9005, SP01KGBP44UD9005AY, SU01KGBP44UD9005SN, SP02KGBP44UD9005, SP02KGBP44UD9005AY, SP04KGBP44UD9005, SP04KGBP44UD9005AY1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026The P/N table lists SP250GBP44UD9005, SP500GBP44UD9005 and its AY twin, SP01KGBP44UD9005 with its AY and SN twins, SP02KGBP44UD9005 and its AY twin, and SP04KGBP44UD9005 with its AY twin. Silicon Power does not say what AY and SN mean9Spec databasebuildcores.com/products/Storage/zdilema3v/Silicon-Power-UD90-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026Lists SP02KGBP44UD9005, SP02KGBP44UD9005AY and SU02KGBP44UD9005SN. The SN part is not on the Silicon Power page and is not stored
GTIN / EAN
Announced
20 May 20224Press releasesp-siliconpower.com/blogs/news/the-new-ud90-pcie-4-0-ssd-fuels-the-speed-to-succeedRead 14 October 2026Silicon Power's launch release is datelined Taipei, May 20st, 2022 (sic). This copy is a Silicon Power US blog post republished in 20235Press articlefunkykit.com/news/silicon-power-announces-ud90-pcie-4-0-ssdRead 14 October 2026Funky Kit reposted the release on 20 May 2022
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
From $94.991Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 20263Maker spec sheet (PDF)silicon-power.com/document/ssd_tbwRead 14 October 20266Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 20267Reviewpcper.com/2023/02/silicon-power-pcie-gen-4x4-ud90-1tb-nvme-ssd-review-excellent-valueRead 14 October 20268Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 20269Spec databasebuildcores.com/products/Storage/zdilema3v/Silicon-Power-UD90-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026
Markets
Not available
Not available
Colours
Not available
Not available
Form factor
Interface
0 of 5 differ
Interface
PCIe generation
PCIe lanes
NVMe version
1.41Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Supports NVMe 1.42Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Gen4 x4 and NVMe 1.48Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 2026CrystalDiskInfo confirms PCIe 4.0 x4 and NVMe 1.4
Detachable cable
Not available
Not available
Hardware
7 of 7 differ
Controller
Phison E182Reviewstoragereview.com/review/kingston-kc3000-ssd-reviewRead 15 October 2026Phison E18. The text names the Phison PS5018-E18 on TSMC 12nm. Tom's Hardware spells it PS5018-E18, stored as Phison E18 as on the Corsair MP600 entries3Reviewtomshardware.com/reviews/kingston-kc3000-m2-ssd-reviewRead 15 October 2026Phison PS5018-E18, 8-channel, 12nm. Table lists the same controller for all capacities
Phison E21T6Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 2026Phison E21T, the first drive Tom's tested with it. Four channels and DRAM-less7Reviewpcper.com/2023/02/silicon-power-pcie-gen-4x4-ud90-1tb-nvme-ssd-review-excellent-valueRead 14 October 2026Phison E21 (PS5021-E21T) controller, DRAM-less8Reviewservethehome.com/silicon-power-ud90-4tb-nvme-ssd-reviewRead 14 October 2026Phison PS5021-E21T
Flash type
Not available
Flash memory
Micron B47R TLC2Reviewstoragereview.com/review/kingston-kc3000-ssd-reviewRead 15 October 2026Text names Micron's B47R 3D TLC NAND. Tom's Hardware and Club386 name 176-layer TLC. Geizhals notes the drive shipped with Micron 176-layer TLC before 2023, so later units may differ3Reviewtomshardware.com/reviews/kingston-kc3000-m2-ssd-reviewRead 15 October 2026Spec table and text: Micron 176L TLC, thirty-two 512Gb dies at 1,600 MT/s on the 2TB
Not available
Flash layers
Not available
DRAM cache
None, uses host memory (HMB)1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Supports Host Memory Buffer (HMB). The maker does not say there is no DRAM chip. Reviewers found none2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Supports NVMe 1.4 and Host Memory Buffer (HMB)6Reviewtomshardware.com/reviews/silicon-power-ud90-ssd-reviewRead 14 October 2026Spec table reads No (HMB). No DRAM on the board
DRAM cache size
2GB6Reviewkitguru.net/components/ssd-drives/simon-crisp/kingston-kc3000-2tb-ssd-review/all/1Read 15 October 2026Text says one DDR4 cache IC on each side of the 2TB PCB. The size per capacity is taken from the Igor's Lab table7Reviewigorslab.de/en/kingston-kc3000-pcie-4-0-nvme-ssd-review-is-the-kc3000-really-better-than-the-nv3Read 15 October 2026Table of memory model by capacity: 512GB 512 MB DDR4, 1TB 1 GB, 2TB 2 GB, 4TB 4 GB. Review of 9 September 2025 tested a 2TB with Micron 176-layer TLC
Not available
Performance
4 of 4 differ
Sequential read (claimed)
5,000MB/s1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Performance Read (max.): 250GB 4,700 MB/s and 5,000 MB/s for 500GB, 1TB, 2TB and 4TB. Footnote: performance varies by system and capacity. No test host is named2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Up to 5000MB/s. Per-capacity values are on the product page
Sequential write (claimed)
7,000MB/s2Reviewstoragereview.com/review/kingston-kc3000-ssd-reviewRead 15 October 2026Same row as read
4,800MB/s1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 2026Performance Write (max.): 250GB 1,500, 500GB 2,700, 1TB 4,800, 2TB 4,800 and 4TB 4,500 MB/s. The 2022 launch figures were 4,800 read and 4,200 write for the 1TB and 250GB write was 1,950 in 2023. Today's page is stored2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 2026Up to 4800MB/s. Footnote: read and write vary by system performance and capacity
Random 4K read (claimed)
Not available
Random 4K write (claimed)
1,000,000IOPS2Reviewstoragereview.com/review/kingston-kc3000-ssd-reviewRead 15 October 2026Same row as read
Not available
Endurance and reliability
2 of 3 differ
Endurance (TBW)
MTBF or MTTF (claimed)
Operating temperature
Power
3 of 6 differ
Power while reading (claimed)
Not available
Not available
Power while writing (claimed)
Not available
Not available
Max power consumption (claimed)
Not available
Average power in light use (claimed)
Not available
Idle power (claimed)
Not available
Sleep power (claimed)
Not available
Not available
Measured
7 of 9 differ
Sequential read (measured)
Not available
Sequential write (measured)
Not available
Random 4K read at queue depth 1 (measured)
Not available
Random 4K write at queue depth 1 (measured)
Not available
Write cache size (measured)
Not available
Write speed after the cache (measured)
Not available
3DMark Storage Benchmark
Not available
Not available
Highest temperature under load (measured)
Not available
Not available
Cooling and build
0 of 4 differ
Heatsink
RGB lighting
Not available
Not available
Dust and water rating
Not available
Not available
Drop test height
Not available
Not available
Security and software
1 of 2 differ
Security
Not available
Not available
Software
Compatibility
0 of 1 differ
Platforms
Dimensions and weight
1 of 2 differ
Dimensions
Length80Width22Height3.5mm(3.1 × 0.9 × 0.1 in)2Reviewstoragereview.com/review/kingston-kc3000-ssd-reviewRead 15 October 2026512GB and 1,024GB 80mm x 22mm x 2.21mm. 2,048GB and 4,096GB 80mm x 22mm x 3.5mm
Length80Width22Height3.5mm(3.1 × 0.9 × 0.1 in)1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 202622.0mm x 80.0mm x 3.5mm. Stored as length 80, width 22 and height 3.52Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 202622.0mm x 80.0mm x 3.5mm
Weight
In the box
None of 2 known
In the box
Not available
Not available
Cables included
Not available
Not available
Links
Not compared
Product page
www.kingston.com/en/ssd/kc3000-nvme-m2-solid-state-drive1Maker product pagekingston.com/en/ssd/kc3000-nvme-m2-solid-state-driveRead 15 October 2026Kingston's product page for the drive. It returned HTTP 403 to automated requests and the datasheet URL pattern kingston.com/datasheets/SKC3000S_us.pdf returned 404, so neither was read. StorageReview and APH Networks print Kingston's spec list
Spec sheet
Not available
Manual
Not available
Not available
EPREL registration number
Not available
Not available
Warranty
0 of 1 differ
Manufacturer warranty (source market)
5years1Maker product pagesilicon-power.com/product-detail/PCIe-Gen4-x4-UD90-2280Read 14 October 20265-year limited warranty. The warranty is based on the TBW or the warranty period. Market not named2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ud90-2280Read 14 October 20265-year limited warranty















