We test PCI Express 4.0 internal SSDs using a desktop testbed with an MSI X570 motherboard and AMD Ryzen CPU, 16GB of Corsair Dominator DDR4 memory clocked to 3,600MHz, and a discrete graphics card. Testing the Atom 50: Fast at Game Loading and Everyday Tasks Many budget (and some higher-end) drives skimp on security features, but not the Atom 50, which provides AES 256-bit hardware-based encryption as well as LDPC (Low Density Parity Check Code). It generally posted lower scores than the Atom 50 in our other benchmarks. However, the S50 Lite is on a lower speed tier than the Atom 50, with sequential speed ratings of 3,900MBps read and 3,200MBps write. The ADATA XPG Gammix S50 Lite, our former budget SSD champ, can be found for as little as 11 cents per gigabyte.
TBW tends to scale 1:1 with capacity, so when the 2TB Atom 50 is released, its ratingshould be about 1,300TBW. That's typical of SSDs with QLC-based memory, which is less durable than the TLC memory found in the Atom 50. However, the Delta's benchmark scores proved middling at best, and its durability was low-just 400TBW (terabytes written) for the 2TB drive we tested. In terms of pricing, the Atom 50 lists at 12 cents per gigabyte, 3 cents a gig less than the Mushkin Delta, but at this writing their prices are nearly identical (within a penny per gigabyte of each other) at Amazon retail prices. (Check out our glossary of SSD terms if some of this lingo is new to you.) The Atom 50's controller eschews the usual DRAM cache, enlisting instead your PC's own memory as a host memory buffer (HMB). The drive is based on Micron's 176-layer 3D TLC NAND flash. It employs the NVMe 1.4 protocol over the PCIe 4.0 bus, features an InnoGrit IG5220 (RainierQX) controller, and is rated for a maximum throughput of 5,000MBps read and 4,500MBps write. The XPG Atom 50 is a PCIe 4x4 drive manufactured on an M.2 Type-2280 (80mm long) "gumstick" printed circuit board. The Atom 50 replaces the ADATA XPG Gammix S50 Lite as our Editors' Choice award winner among budget internal SSDs.Ĭomposition of an Atom: TLC and DRAM-Free Memory Like an atom, it is compact (it can easily fit in the tightest laptop M.2 slot, or Sony's PlayStation 5 console) but packs plenty of power under the right conditions. This PCI Express 4.0 drive provides good performance but is easy on the wallet.
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How to Set Up Two-Factor AuthenticationĪDATA's XPG Atom 50 ($119.99 in its sole capacity, 1TB) is the flagship of the company's new line of internal solid-state drives for gamers and creators.
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