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Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
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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.
Samsung
Samsung Pascal (S4LV008) controller · Samsung NAND.

Performance, endurance, NAND architecture, thermals, and compatibility.
About This Product
The Samsung 990 Pro 4TB is a high-performance PCIe 4.0 NVMe SSD, offering substantial storage capacity and fast data transfer speeds. It is suitable for users requiring rapid load times and efficient handling of large files, such as content creators, professional gamers, and workstation users. While it offers top-tier PCIe 4.0 performance, its price point places it among the most expensive consumer SSDs, competing with other high-end NVMe drives like the WD Black SN850X or Crucial T500.
Performance, endurance, NAND architecture, thermals, and compatibility.
Sequential, random, and sustained speeds.
Sequential Read
7,168 MB/s
Sequential Write
6,662 MB/s
4K Random Read
2K IOPS
4K Random Write
2K IOPS
How long the drive lasts under sustained writes.
TBW (lifetime writes)
2,400 TB
Drive Writes/Day
0.33 DWPD
calculated from TBW
Warranty
5 years
Controller, NAND, and cache — what most retailers don't show you.
Controller
Samsung Pascal (S4LV008)
NAND Type
TLC(176-layer)
NAND Brand
Samsung
DRAM Cache
Yes (4096 MB)
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Rating
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Cross-generation alternatives at the same capacity.
Verdict
“Ideal for professionals and enthusiasts needing top-tier PCIe 4.0 performance and large capacity.”
XPG GAMMIX S70 Blade
2TB · Gen 4 · 7,400 MB/s
HDD