Expert's Rating
Pros
- Good real-world performance
- Decently affordable
- 2230 form factor for Steam Deck and ROG Ally
Cons
- Only 100MBps writes when secondary cache runs out
- Very low TBW rating
Our Verdict
The Corsair MP600 Core Mini is a worthy upgrade for your Steam Deck or ROG Ally, though it faces stiff competition from WD’s SN770M as our top recommendation.
Best Prices Today: Corsair MP600 Mini Core SSD
Because of the growing popularity of handheld gaming devices such as the Steam Deck, which only accept smaller 2230 form factor (22mm wide, 30mm long) SSDs, we’re seeing more of these tiny wonders from vendors these days.
Corsair’s MP600 Core Mini is one such, and it proved a very capable performer under nearly all circumstances.
Further reading: See our roundup of the best PCIe 4.0 SSDs to learn about competing products.
What are the Corsair MP600 Core Mini’s features?
As noted, and as you might guess from the name, the MP600 Core Mini is a 2230 NVMe SSD. It’s a PCIe 4.0 x4 (four lane) drive that employs a Phison PS5021-E21 and stacked QLC (Quad-Level Cell/4-bit) NAND. Corsair didn’t get back to us on the layers, but we’re assuming there are 176 as with most QLC drives.
The MP600 Core Mini is a host memory buffer (HMB) design that eschews DRAM for primary cache, instead relying on your device’s main memory for those duties. Secondary caching is dynamic SLC (Single-Level Cell), where the QLC is written like the former, using only a single on/off voltage level.
Writing at QLC’s native 16 voltage levels requires extensive error-checking to make sure the proper level was indeed obtained and slows writes quite a bit. See the “How fast” section below.
Corsair backs the MP600 Core Mini with a five-year warranty, which is mitigated by a rather parsimonious rating of 250TBW (terabytes that may be written over the life of the drive) per terabyte of capacity.
That said, other QLC designs such as the Sabrent Rocket Q4 and the 2280 Crucial P3 carry even stingier ratings, 225TBW and 220TBW per terabyte, respectively. Longevity doesn’t seem to be a strength of this particular type of NAND.
The only 2230 SSD we’ve tested that utilizes 3-bit, TLC is the WD SN770M, which you’ll see along with the Rocket Q4 in the charts below. It carries a far more reassuring 600TBW rating.
Mentioned in this article
I should note that 250 terabytes is actually quite a lot of data — more than most users will write in five years. Still, it’s not an confidence-inspiring number.
How much does the Corsair MP600 Core Mini cost?
At the time of this writing, the 2TB MP600 Core Mini we tested was available on Amazon for $200 and the 1TB version for $95. You’re of course paying a premium for the form factor, i.e., a drive that will fit in your Steam Deck or Asus ROG Ally. Miniaturization premium or not, the competing WD SN770M was quite a bit cheaper at the time of this writing.
How fast is the Corsair MP600 Core Mini?
If you don’t throw absurd amounts of data at it, as we do in testing, the MP600 Core Mini offers more than acceptable performance. As you can see from the tests below, it’s on par for a QLC/HMB design, and very good at real-world tasks — to a point. A point I’ll describe at the end of this section.
The MP600 Core Mini matched the similarly designed Sabrent Rocket 4 in CrystalDiskMark 8’s sequential tests, but didn’t come close to the SN770M with its TLC NAND.
Things were a bit sunnier for the Corsair design in CrystalDiskMark 8’s 4K tests, with the rather inconsistent SN770M faring somewhat poorly in the single-queue write test. Again, the MP600 Core Mini was in a statistical near-dead heat with the Rocket 4.
The MP600 Core Mini finally matched the WD SN770M in our 48GB transfers. This performance is also on par with many 2280, DRAM-caching, and even PCIe 5.0 NVMe SSDs. In other words, it’s a very good result — even in the grand scheme.
Sweet triumph finally befell the MP600 Core Mini’s in the 450GB write. That’s a lot of data — however, read on, as the drive didn’t sustain this speed for much longer.
No sooner had our drive-filling 1.35TB write (with 450GB already written) commenced, than the MP600 Core Mini’s write speed dropped spectacularly to around 100MBps to 120MBps. That’s slow even for a modern hard drive, but it is actually normal for this type of QLC written natively. You can see the phenomenon below.
Though it’s extremely, and I mean extremely, unlikely that you&r
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