The SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... costs $0.2100/GB while the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) costs $0.0825/GB. SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers 61% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... vs SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) — Which Is Better Value?
Specification Comparison
| Spec | SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... | SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) |
|---|---|---|
| Brand | Samsung | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.2100 | $0.0825 |
| Price | $839.95 | $329.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and...
SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25)
Which Should You Buy?
Based on current pricing data, the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers better value at $0.0825//GB compared to the SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... at $0.2100//GB — that's roughly 61% less per gigabyte.
The best deal for the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) is $329.97 at Amazon, while the SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... starts at $839.95 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... and SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) product page for detailed specifications and price history.
Frequently Asked Questions
Is SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... or SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) a better deal?
As of June 2026, SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers better value at $0.0825//GB compared to SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... at $0.2100//GB. That is approximately 61% better value per gigabyte.
What is the price per GB of SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and...?
The SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and... is currently priced at $0.2100/GB ($839.95 for 4TB) at Newegg.
Where can I buy SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) for the cheapest price?
The cheapest price for the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) is $329.97 at Amazon, which works out to $0.0825/GB.