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Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Silicon Power
Phison E21T controller · Micron NAND.
Performance, endurance, NAND architecture, thermals, and compatibility.
| Merchant |
|---|
| Price |
|---|
| $/GB |
|---|
| Availability |
|---|
| Total |
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MemoryC | $117.95 | $0.472 | In Stock | $117.95 | Buy |
About This Product
The Silicon Power UD90 is a 250GB M.2 NVMe SSD utilizing a PCIe Gen 4 x4 interface. This drive offers faster sequential read/write speeds compared to SATA SSDs, making it suitable for general computing tasks and as a boot drive. However, its 250GB capacity is limited for modern gaming libraries or extensive data storage, and its performance will be outmatched by higher-end PCIe Gen 4 drives in sustained workloads.
Verdict
“Good for budget builds needing a fast boot drive and basic application storage.”
Performance, endurance, NAND architecture, thermals, and compatibility.
Sequential, random, and sustained speeds.
Sequential Read
4,700 MB/s
Sequential Write
1,500 MB/s
How long the drive lasts under sustained writes.
TBW (lifetime writes)
75 TB
Drive Writes/Day
0.16 DWPD
calculated from TBW
MTBF
1.5M hours
Warranty
5 years
Controller, NAND, and cache — what most retailers don't show you.
Controller
Phison E21T
NAND Type
3D NAND(176-layer)
NAND Brand
Micron
DRAM Cache
No (HMB)
Critical for Gen5 drives and laptops.
Max Temp
70°C
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