Which is faster for everyday use?

The P34A60. Its rated 2,200 MB/s read and 1,600 MB/s write are about four times the SU650's 520 MB/s and 450 MB/s, and NVMe cuts latency further.

Will the P34A60 fit my laptop?

Only if the laptop has an M.2 2280 slot that supports PCIe NVMe. Many older laptops have only a 2.5-inch SATA bay, where the SU650 fits instead.

Is 512GB enough, or should I pay for 1TB?

For a Windows install plus games or media, 512GB fills quickly. The P34A60 doubles capacity and adds speed, so it is the better value if your system supports it.

Does the P34A60 have DRAM?

No. It uses Host Memory Buffer and an SLC cache instead. That is fine for normal use but can slow sustained large transfers more than a DRAM drive.

Neither listing states endurance or warranty figures, so compare the rated terabytes written and warranty on each product page before buying.

Is the P34A60 worth the extra over the SU650?

At $149.95 at eBay as of November 4, 2026, yes for a compatible system: you get double the capacity and much higher speed. The SU650 only makes sense when SATA is your only option.

Silicon Power P34A60 1TB NVMe PCIe Gen3x4 M.2 2280 Internal Solid State Drive vs ADATA SU650 512GB Internal SSD

The Silicon Power P34A60 1TB is the better buy for most shoppers: it is twice the capacity and roughly four times faster on paper, at $149.95 at eBay as of November 4, 2026. The ADATA SU650 512GB is only worth it for an older machine with a 2.5-inch SATA bay and no M.2 slot. Check the P34A60's price history before buying, since it has moved sharply.

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