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Model: SAMSUNG 990 EVO Plus SSD 2TB, PCIe Gen 4x4, Gen 5x2 M.2 2280, Speeds Up-to 7,250 MB/s, Upgrade Storage for PC/Laptops, HMB Technology and Intelligent Turbowrite 2.0, (MZ-V9S2T0B/AM)
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I'm looking to add a drive to my PS5. Is there any advantage to going for the Pro for my use case? I read elsewhere that DRAM probably doesn't matter for PS5.
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3d ago
Jun 2, 2025 8:41 PM
1,337 Posts
Joined Aug 2007
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[QUOTE=escoe;177334453]AbstractThe PlayStation 5 (PS5) supports PCIe 4 × 4 NVMe solid-state drives that sustain read rates well beyond the console's published 5.5 GB s⁻¹ requirement. This note compares the Samsung 990 EVO Plus 2 TB (DRAM-less, HMB-capable) and the Samsung 990 PRO 2 TB (2 GB LPDDR4 cache) from the perspectives of bandwidth utilisation, flash-translation-layer behaviour, thermodynamics, and quantum-mechanical retention limits. The analysis demonstrates that the PRO's marginal performance advantage (97 % sequential, the mapping table is traversed linearly and fits within that SRAM, leaving load-time parity between the two devices (
How do you intend to share it, cross or lengthwise?
Seriously, I just gone one myself, just for me, also for $130, at Amazon, for a "Used like new" one. I intend to clone my 1TB 980 Pro to it and use that as my OS drive. The 1TB is down to just over 300GB and I need to install some stuff on it.
FWIW Amazon has been offering "Used - Like New" 990 Pros for $133. Might still have a few. Got one myself, and the seals were still intact. I'll test it of course.
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Special cases for the PRO: Long, continuous write workloads (e.g., high-bitrate capture) may benefit from its larger TurboWrite buffer and DRAM-backed FTL.
I could have sworn both models had virtually identical sustained write performance (both pSLC size and post-pSLC speeds).
How do you intend to share it, cross or lengthwise? Seriously, I just gone one myself, just for me, also for $130, at Amazon, for a "Used like new" one. I intend to clone my 1TB 980 Pro to it and use that as my OS drive. The 1TB is down to just over 300GB and I need to install some stuff on it.
One thing to consider. I had an issue using both the old drive and new drive after cloning. My last PC recognized both as the same drive but one didn't have a boot sector so I had to manually choose which drive to boot from every single time. Formatting woudn't fix it either. The only thing that fixed it was when I did the upgrade from Windows 10 to 11. Could have been something I did or a step I skipped. Maybe it's how Alienware (bought during the mid 2010s bitcoin mining craze when prebuilt was way cheaper than building your own) recognizes boot drive. Never really figured it out.
FWIW Amazon has been offering "Used - Like New" 990 Pros for $133. Might still have a few. Got one myself, and the seals were still intact. I'll test it of course.
When did you get yours? Looks like the only Like New is 146 or so
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Seriously, I just gone one myself, just for me, also for $130, at Amazon, for a "Used like new" one. I intend to clone my 1TB 980 Pro to it and use that as my OS drive. The 1TB is down to just over 300GB and I need to install some stuff on it.
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When did you get yours? Looks like the only Like New is 146 or so