The ADATA Ultimate SU750 1TB SSD Review: Realtek Does Storage, Part 1
by Billy Tallis on December 6, 2019 8:00 AM ESTAnandTech Storage Bench - Heavy
Our Heavy storage benchmark is proportionally more write-heavy than The Destroyer, but much shorter overall. The total writes in the Heavy test aren't enough to fill the drive, so performance never drops down to steady state. This test is far more representative of a power user's day to day usage, and is heavily influenced by the drive's peak performance. The Heavy workload test details can be found here. This test is run twice, once on a freshly erased drive and once after filling the drive with sequential writes.
The empty-drive performance of the ADATA Ultimate SU750 on the Heavy test approaches that of the mainstream SATA SSDs, but when the test is run on a full drive its performance drops down to be on par with the other entry-level drives: the Toshiba TR200 DRAMless TLC SSD, and the Samsung 860 QVO with QLC NAND.
The average and 99th percentile latency scores repeat the same story: the SU750 handles the Heavy test well when run on an empty drive, but when full it struggles like other entry-level drives.
The average write latency for the SU750 on the Heavy test shows a much larger full-drive performance penalty than the average read latency scores, but in either case it comes out well ahead of the other two entry-level SATA drives.
The 99th percentile read and write latencies from the SU750 are both competitive with mainstream SATA drives when the test is run on a full drive. When full, the 99th percentile read latency on the SU750 takes a hit that makes it slightly slower than the Toshiba TR200. For writes, the SU750's QoS is hurt quite a bit more, but the TR200 shows just how bad things could have been.
Power consumption is again pretty high for the SU750, especially for the full-drive test run. The two NVMe drives somewhat obscure the big gap that separates the SU750 and 860 QVO from the rest of the SATA SSDs.
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brucethemoose - Friday, December 6, 2019 - link
Depends how much you write. An HDD is great stone cold or hot bulk data, but I'd trust a big, cheapo SSD more for my "lukewarm" stuff, where I'm reading it every once in awhile, but not writing enough to wear the QLC out.flyingpants265 - Friday, December 6, 2019 - link
For stuff I actually don't want to lose, which is not that much (200gb or so), I have it on SSD, HDD, and another offline HDD which is unplugged.TheinsanegamerN - Sunday, December 8, 2019 - link
Your average SSD user will reach the TBW rating in 56 years of daily use. "lifespan" isnt an issue. If you ARE regularly writing terrabytes of data, the sheer speed difference of a SSD will save you truckloads of time/money.HDDs suck outside of niche massive file allocation.
FunBunny2 - Sunday, December 8, 2019 - link
"HDDs suck outside of niche massive file allocation. "and data stability.
extide - Friday, December 6, 2019 - link
Samsung 860 QVO 4TBflyingpants265 - Friday, December 6, 2019 - link
Not a bad idea, but I couldn't justify $300+ for a 4TB SSD.I think my ideal setup right now is still 1TB nvme+a few hard drives..
romrunning - Friday, December 6, 2019 - link
The Crucial MX500 2TB goes for $206-220 on Amazon. It's also a decent performer.PaulHoule - Friday, December 6, 2019 - link
I get depressed reading reviews of DRAMless SSDs. It seems like some vendors won't stop until they make an SSD which performs worse than an HDD.In general I don't agree with the rankings that Anand and other review sites give for SSDs. I don't particularly care about median performance, but I do care about performance at the 90%, 99%, etc. level -- because that is what causes your computer to freeze up for 10 seconds here or there.
Often reviewers pick out a drive that has good 50% performance, but for just a few dollars more you can get something with much better tail latency, for instance I have been happy with some Intel SSDs I've bought. If an "Intel Inside" sticker meant that a machine had an Intel SSD that would be impressive, but Intel has been damaging its brand with Atom, Celeron and things like that. They ought to take a cue from American car makers who regularly retire the names of the bad compact cars they make like Chevette, Gremlin, Neon, Cavalier, etc...
extide - Friday, December 6, 2019 - link
Yeah, I think Allyn at PCPer did the best SSD reviews tbh. He captures all of that 'last percent drop off' stuff you are talking about really well.Joahua - Saturday, December 7, 2019 - link
What is the use of Dram in ssd?Can i install dram less ssd for boot drive