The XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME costs $0.1447/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 $0.0850/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 41% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME 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 | XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME | 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 | XPG | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.1447 | $0.0850 |
| Price | $578.90 | $339.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
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 $0.0850//GB compared to the XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME at $0.1447//GB — that's roughly 41% 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 $339.97 at Amazon, while the XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME starts at $578.90 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME 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 XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME 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 July 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 $0.0850//GB compared to XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME at $0.1447//GB. That is approximately 41% better value per gigabyte.
What is the price per GB of XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME?
The XPG SPECTRIX RGB Gaming SSD S40G Series: 4TB Internal PCIe Gen3x4 M.2 2280 NVME is currently priced at $0.1447/GB ($578.90 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 $339.97 at Amazon, which works out to $0.0850/GB.