ADATA XPG SX930 (120GB, 240GB & 480GB) SSD Review: JMicron JMF670H Debuts
by Kristian Vättö on July 16, 2015 10:00 AM ESTFinal Words
To be frank, reviewing a SATA MLC SSD has gotten rather unexciting over the past year or so. On the performance side there are barely any areas where one can get enthusiastic about because the SATA 6Gbps interface and AHCI driver stack are both so saturated. It feels like the purpose of my testing is mostly to make sure that someone didn't totally screw up the product design because other than that the performance differences between modern SATA 6Gbps controllers are getting negligible. Only Samsung and SanDisk can provide performance that's distinguishably better than others, which leaves JMicron, Silicon Motion and Phison based drives fighting over the value segment.
This brings us to the SX930 and JMF670H. If I had to pick one word to describe the two, that would be 'average'. There is nothing that truly separates the SX930 and JMF670H from the drives and controllers that are already available. Performance wise the JMF670H is fairly similar to Silicon Motion's SM2246EN, but at the end of the day the SM2246EN wins in both performance and power efficiency, which makes it difficult for ADATA and JMicron to compete in areas other than price or features.
While utilizing higher binned MLC NAND (or "enterprise-grade" as ADATA calls it) could be considered as a differentiating feature, I don't consider NAND endurance to be a significant issue for client usage, so even though the NAND is likely higher quality than what you would find inside a BX100 for instance, it's not going to have any impact on the end-user. A five-year warranty is definitely a welcome addition, but that alone doesn't provide enough value to make the SX930 stand out, especially with Samsung offer a five-year warranty for the 850 EVO.
| Amazon Price Comparison (7/16/2015) | |||
| 120/128GB | 240/250/256GB | 480/500/512GB | |
| ADATA XPG SX930 (MSRP) | $80 | $110 | $200 |
| ADATA Premier SP610 | $60 | $100 | $188 |
| Crucial MX200 | - | $103 | $180 |
| Crucial BX100 | $66 | $90 | $178 |
| OCZ Trion 100 | $60 | $90 | $180 |
| OCZ ARC 100 | $54 | $89 | $170 |
| OCZ Vector 180 | $80 | $130 | $250 |
| Samsung 850 EVO | $72 | $98 | $178 |
| Samsung 850 Pro | $97 | $140 | $251 |
| SanDisk Ultra II | $63 | $95 | $182 |
| SanDisk Extreme Pro | - | $135 | $220 |
| Transcend SSD370 | $58 | $90 | $176 |
Since the SX930 is ADATA's high-end drive, the prices aren't exactly cheap. You are looking at about $20 premium over the BX100, which is hard to justify given that the BX100 actually provides better performance. While street pricing tends to be lower than MSRPs, it's clear that the SX930 needs to be about $20 cheaper to be competitive. At equal pricing with the BX100, I might lean towards the SX930 and take a marginal hit in performance for two years of additional warranty, but I wouldn't pay $20 for the warranty alone because of the rapid developments in SSD performance and prices dropping about 20% year over year.
I did let JMicron know about my performance concerns when I tested the JMF670H reference design samples because sequential read performance in particular was below the average. JMicron promised an improvement through an upcoming firmware update and told me that the initial firmware mostly focused on optimizing performance for benchmarks such as CrystalDiskMark and AS-SSD, which typically use higher IO sizes and queue depths to extract the maximum performance out of an SSD. With a firmware better optimized for low queue depths and real world workloads, I see potential in the SX930 and JMF670H, but nevertheless it still needs to be more competitive in price in order to tackle the BX100 and 850 EVO.
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bill.rookard - Thursday, July 16, 2015 - link
It is more of a power-user scenario. I have a pretty fast desktop (i5-4670k, 16GB ram, Gigabyte Gaming-5 mobo) paired with an older (!) Samsung 830 128Gb boot drive. The computer, once you get past the POST, boots in seconds. Your average user would never notice a faster boot, since it's so bloody quick already.DIYEyal - Monday, July 20, 2015 - link
SSDs are far more than just fast boot.frenchy_2001 - Thursday, July 16, 2015 - link
As Anand used to repeat in most of its SSD tests, there is very little difference for typical client usage between SSDs. There are order of magnitudes between SSDs and HDDs (particularly useful for random access latencies), but once that jump is made, there is very little difference for client usage.Just check the "Storage Bench Light Latency" graphs. This is the ranking for typical client usage and most SSDs are in the same range.
Only enterprises and power users will really benefit from PCIe/NVMe storage. For the rest of us, any modern SSD is good enough.
Stochastic - Friday, July 17, 2015 - link
To me this raises the question of what's next in client computing. Any half-decent PC today with an SSD already excels at most consumer tasks--web browsing, office applications, light photo editing, 1080p video, etc. Compute intensive tasks such as computer vision and natural language processing are being pushed to the cloud. Gamers have faster GPUs and next-generation displays (OLED, 4K, wide-gamut, adaptive V-sync) to look forward to, but aside from that there's nothing else in the horizon that gets me excited. Maybe VR is the next big thing?Kristian Vättö - Friday, July 17, 2015 - link
Unified memory architecture (i.e. no more memory and storage, just one type that serves as both) is really the next big thing. We'll likely see something in that front in the early 2020s.AnnonymousCoward - Saturday, July 18, 2015 - link
Are you saying a non-volatile technology will replace DRAM in 5 years? How could that possibly happen?Kristian Vättö - Saturday, July 18, 2015 - link
Not replace right away, of course, but in five years time the next generation non-volatile memory (ReRAM, NRAM, MRAM or whatever it ends up being) should start to be in meaningful production volume. Once that happens it will slowly start to replace DRAM and NAND, although that transition may easily take a decade, but some enterprise applications will probably take advantage of a unified memory architecture rather quickly.AnnonymousCoward - Tuesday, July 21, 2015 - link
Huh. I haven't heard of all 3 of those. But without even knowing about them, I can say in general it will be damn hard to beat DRAM performance and density/cost. Maybe in 2030.ATC9001 - Thursday, July 16, 2015 - link
Is there ever going to be a drive that challenges the EVO for price and performance? It competes with higher end drives, but is nearly the cheapest available...Refuge - Thursday, July 16, 2015 - link
Honestly idk...Samsung is very well set up in the SSD space right now, they have their own in house controller that is a very solid performer, and they are completely vertically integrated with some of the best fabs around.