Which is faster in real use?

Reads are rated the same at 3,500MB/s, so boot and load times are close. The P3 is faster on writes, 3,000MB/s vs 2,100MB/s, which shows up when copying large files or installing big games.

Does PCIe 4.0 make the Kingston NV2 faster?

Not much here. The NV2 is rated at the same 3,500MB/s read as the PCIe 3.0 P3, so the Gen4 interface does not translate into a higher rated speed on this 1TB model.

The Crucial P3, on paper. It is rated for 440TBW against 320TBW for the NV2, and it carries a 5-year warranty. Both are fine for normal desktop use.

Is the P3 worth extra money?

Yes if the gap is small and you write a lot of data, because of the faster writes and higher endurance. If the NV2 is clearly cheaper and you mostly read, save the money.

Will either work in a laptop?

Both are M.2 2280 drives. The NV2 is listed at 2.2mm thick, which suits tight laptop slots. Check that your slot supports NVMe and the drive length before buying.

Do either have DRAM cache?

The P3 is DRAM-less with QLC NAND. The NV2 listing does not state its NAND type or cache, so treat sustained-write performance on both as budget-tier.

Crucial P3 1TB NVMe SSD vs Kingston NV2 1TB NVMe SSD

Both are budget 1TB M.2 drives with the same 3,500MB/s rated read speed, so the choice comes down to write speed and endurance. The Crucial P3 writes faster (3,000MB/s vs 2,100MB/s) and is rated for more writes (440TBW vs 320TBW), while the Kingston NV2 runs on the newer PCIe 4.0 interface. Buy the P3 for large file transfers and heavier use; buy the NV2 only if its price is clearly lower.

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