SSDs / Compare
Kingston NV2 vs Silicon Power UD90
Product A: Kingston
29 of 63 known
Change Kingston NV2
Product B: Silicon Power
26 of 63 known
17 of 55 fields differ
- 8 different values
- 9 known for one only
- 11 the same
- 27 missing for both
Biggest differences
Each bar uses the scale of all 84 SSDs.
- Write speedA: 2,800MB/sB: 4,800MB/sSilicon Power is 2,000 MB/s higher.
- Read speedA: 3,500MB/sB: 5,000MB/sSilicon Power is 1,500 MB/s higher.
Weight
0 to 150 g
All 63 fields
Every value links to where we found it.

General
2 of 9 differ
Series
Not available
Not available
Model numbers
SNV2S/250G, SNV2S/500G, SNV2S/1000G, SNV2S/2000G, SNV2S/4000G1Maker spec sheet (PDF)kingston.com/datasheets/snv2s_en.pdfRead 23 October 2026Kingston part numbers SNV2S/250G, SNV2S/500G, SNV2S/1000G, SNV2S/2000G and SNV2S/4000G
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
Not available
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
Kingston NV311Reviewkitguru.net/components/ssd-drives/joao-silva/kingston-quietly-launches-nv3-m-2-ssd-series-with-up-to-4tb-of-storageRead 23 October 2026KitGuru calls the Kingston NV3 the successor to the NV2.
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
Launch price (EU)
Not available
Not available
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
2 of 7 differ
Controller
Not available
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
Not available
Flash memory
Not available
Not available
Flash layers
Not available
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
Not available
Not available
Component sides
Not available
Performance
2 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)
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
Not available
Random 4K write (claimed)
Not available
Not available
Endurance and reliability
2 of 3 differ
Endurance (TBW)
MTBF or MTTF (claimed)
Operating temperature
Power
2 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
Idle power (claimed)
Not available
Not available
Sleep power (claimed)
Not available
Not available
Measured
3 of 9 differ
Sequential read (measured)
Not available
Not available
Sequential write (measured)
Not available
Not available
Random 4K read at queue depth 1 (measured)
Not available
Not available
Random 4K write at queue depth 1 (measured)
Not available
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
2 of 2 differ
Dimensions
Length80Width22Height2.2mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)kingston.com/datasheets/snv2s_en.pdfRead 23 October 202622mm x 80mm x 2.2mm, the same for every capacity
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
Not available
Spec sheet
Manual
Not available
Not available
EPREL registration number
Not available
Not available
Warranty
1 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














