Adata Atom 50 Review: While not one of the fastest PCIe 4 NVMe drive in benchmarks, this worthy scored big time in our real life transfers – Servers & Storage – Solid State Drives (SSD) – Good Gear Guide

        <img class="nopic" src="">          <br><a rel="author" href="/author/2069868060/jon-l-jacobi/articles">Jon L. Jacobi</a><br>PC World<br>17/01/22<br>The Atom 50 was second-tier on synthetic benchmarks, but tied for number one in our real life transfer tests over PCle 4. It's affordable and PS5 compatible, but uses HMB (your PC's DRAM) for primary cache, which the PS5 does not support. Hence, there might be a small drop in performance inside Sony's console.<br>US$120 for 1TB, US$250 for 2TB / AU$TBA (currently unavailable - check <a href="">Amazon</a>)<br>The Adata Atom 50 is one of the more affordable PCIe 4 SSDs on the market, which would seemingly make it a nice option for the PlayStation 5. It's second-tier over PCIe 4, according to synthetic benchmarks, but it tied for 1st place in our real world 48GB transfers–a eye-opening performance considering the price.<br>Even more impressive, the Atom 50 managed that feat without a DRAM cache. It instead utilizes HMB (Host Memory Bus, aka your computer's RAM) primary caching, a technology we've seen less than stellar results from previously. Alas, <a href="" rel="nofollow">Sony's FAQ</a> says thePS5 doesn't support HMB, which means the Atom 50 may not be quite as fast inside that console.<br>Adata's Atom 50 bucks the trend of bargain SSDs based on Phison-based designs by employing a RealTek RTS5766DL to shuttle data to and from the SSD's 176-layer TLC (Triple-Level Cell, 3-bit/state) NAND. As you'll see below in the performance section, it proved very proficient.<br>As noted, there's no DRAM cache, Adata instead opting for HMB. Also as mentioned, this is the first time we seen HMB perform up to snuff.<br>The Atom 50 is currently available in 1TB/US$120 (tested) and 2TB/US$250 flavors. That's a hair pricy for a <a href="">bargain PCIe 4 SSD</a>, but it's still in that ballpark and doesn't consider any discounts you might see. The drives are warrantied for five years or 650TBW (TeraBytes Written over the life of the drive) per 1TB of capacity. That latter is about average for the price point.<br>The Atom 50 turned in good PCIe 3 numbers and decent second-tier numbers over PCIe 4 in CrystalDiskMark 6, CrystalDiskMark 7, and AS SSD 2. Those benchmarks rate the fastest PCIe 4 NVMe SSDs during sustained transfers at around 7GBps while the Atom 50 was just below 5GBps.<br>I should mention that second-tier NVMe is still quite good in the grand scheme of things and the norm at the Atom 50's price point. It was easily the match of the equally bargain Sabrent Rocket 4 as shown in the CrystalDiskMark 6 numbers below.<br><img class="lazy" data-original="" height="859" loading="lazy" width="1617" />While not as fast as Crucial's P5 Plus under CryastalDiskMark 6, the Atom 50 still matched the Sabrent Rocket 4.<br>Where things got interesting were during our 48GB real world transfers shown below. The Atom 50 over PCIe 4 actually tied the Corsair MP600 Pro XT for the fastest aggregate time (1 minute, 39 seconds) we've seen.<br>Looking at the Atom 50's PCIe 3 48GB numbers, which aren't bad but hardly record-setting, I'm thinking that HMB might be a lot more effective over the faster PCIe 4 bus than it was over PCIe 3.<br><img class="lazy" data-original="" height="859" loading="lazy" width="1707" />The Atom 50 tied the Corsair MP600 Pro XT for the fastest aggregate time we've seen in out 48GB transfer tests.<br>The Atom 50 turned in an average time writing our single large 450GB file over PCIe 4, though it never slowed down handily outpaced the Crucial P5 Plus. The 450GB write tests secondary caching algorithms and the speed of the NAND. Keep in mind that the Atom 50 we tested was only a 1TB drive while the Sabrent Rocket 4 it nearly matched was a 2TB unit.<br><img class="lazy" data-original="" height="859" loading="lazy" width="1478" />The Atom 50 did very well in the 450GB large file write, never slowing down appreciably despite being an only 1TB drive. Note that the fastest PCIe 4 SSDs finish this test<br>I found little to complain about with the Atom 50's performance, even if it couldn't match the 7GBps that top-tier SSDs deliver on synthetic benchmarks or their super-fast sustained 450GB writes (191 to 215 seconds). How often do you write 450GB? That said, consider the <a href="">FireCuda 530</a> or <a href="">MP600 XTs</a> if every second counts, otherwise save money with the Atom 50.<br>The Atom 50 is an excellent bargain and a good fit for your PC. It will work in your PS5, however, you might not see exactly the same performance. 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