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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.
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.
Lexar

Performance, endurance, NAND architecture, thermals, and compatibility.
| Merchant |
|---|
| Price |
|---|
| $/GB |
|---|
| Availability |
|---|
| Total |
|---|
MemoryC | $673.14 | $0.168 | In Stock | $673.14 | Buy |
About This Product
The Lexar NM990 is a high-performance PCIe 5.0 x4 NVMe M.2 SSD, offering 4TB of storage. It is suitable for users requiring maximum storage bandwidth and low latency, such as professional content creators or enthusiasts building bleeding-edge systems. While its PCIe 5.0 interface offers theoretical performance advantages, real-world gains over high-end PCIe 4.0 drives are often limited outside of specific workloads.
Verdict
βIdeal for early adopters and professionals needing top-tier storage performance for demanding tasks.β
Performance, endurance, NAND architecture, thermals, and compatibility.
Sequential, random, and sustained speeds.
Sequential Read
14,000 MB/s
Sequential Write
11,000 MB/s
How long the drive lasts under sustained writes.
TBW (lifetime writes)
3,000 TB
Drive Writes/Day
0.41 DWPD
calculated from TBW
MTBF
1.5M hours
Warranty
5 years
Controller, NAND, and cache β what most retailers don't show you.
DRAM Cache
No
Critical for Gen5 drives and laptops.
Max Temp
70Β°C
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