Weve invested the last couple of weeks putting the cards through some real-world use inside actual video cameras. Buffers cleared quickly when shooting stills and the cards were never discovered to be too sluggish with video for the kind of video we were shooting. 400Mbps can be handled just great by V60 cards, so the OWC V90 cards likewise all handled it as quickly without breaking a sweat.
As V90 cards, they ensure sustained compose speeds of a minimum of 90MB/sec. According to OWC, real-world screening has supplied write speeds of approximately 276MB/sec and check out speeds of up to 290MB/sec. Such claims are easy adequate to validate– at least, one would believe so– so when OWC provided to send us some to attempt out, we decided to put these speeds to the test ourselves.
As the speed claims, OWC likewise boasts up to 10x the endurance of completing cards, with up to 10x as much overall information composed prior to the cards pass away out. This specific claim wasnt truly possible to evaluate without killing a bunch of cards to see where they fell over, so the long term sturdiness tests will have to wait.
Weve discovered in the past from some makers that various capabilities of memory cards, even from within the very same item line, can frequently provide various read and compose speeds, so we asked OWC to send us among each capacity to test and compare with each other.
In January, OWC revealed their new Atlas S Pro V90 UHS-II SD Cards, available in 32GB, 128GB, 256gb and 64gb capacities. Theyre priced very competitively, too– that is to state, theyre more economical than a number of their V90 competitors however still a little more costly than V60 UHS-II cards.
The speed tests
The short variation is that when it comes to speed, the memory card reader you select matters simply as much as the memory card speed itself. I tested 5 different card readers from Lexar, SanDisk, Hoodman and even OWCs own UHS-II USB hub however the ProGrade reader came up on top and the most constant speeds from one test to the next with each card I tried from a number of various brands when plugged into the USB 3.2 Gen 2 Type-C USB socket on my ASUS ZenBook Pro.
For each card, we ran the speed test five times utilizing AJA System Test to provide us an idea of consistency and to offer an overall average throughout numerous tests. This is the exact same procedure weve used in the past with the SanDisk and Silicon Power 1TB microSD cards as it tends to offer the most stable and trusted outcomes. Ive included images of the product packaging above each of the charts to reveal the OWCs own advertised max speed test claims for each of the 4 capacities.
As pointed out, OWC sent us all 4 capabilities of Atlas S Pro V90 cards to test out so that we can see if the speed corresponds throughout the variety. Weve seen in the past that there can be some irregularity between various capacities in an item line, so we wished to see the results first-hand. OWC does note some very slight distinctions on the product packaging with their own real-world tests showing 290MB/sec read speed across the board and in between 275-277MB/ sec for the compose speed.
32GB OWC Atlas S Pro V90 UHS-II SD Card
The 32GB OWC Atlas S Pro V90 UHS-II SD card provided average read and write speeds of 268.6 MB/sec and 254.6 MB/sec respectively.
64GB OWC Atlas S Pro V90 UHS-II SD Card
The 64GB OWC Atlas S Pro V90 UHS-II SD card presented typical read and compose speeds of 267.4 MB/sec and 246.4 MB/sec respectively.
128GB OWC Atlas S Pro V90 UHS-II SD Card
The 128GB OWC Atlas S Pro V90 UHS-II SD card provided typical read and compose speeds of 267MB/sec and 255.4 MB/sec respectively.
256GB OWC Atlas S Pro V90 UHS-II SD Card
The 256GB OWC Atlas S Pro V90 UHS-II SD card provided typical read and compose speeds of 266.8 MB/sec and 255.8 MB/sec respectively.
Results and conclusions
I wouldnt think twice to use these in any electronic camera that required a V90 card, from a speed perspective. As far as longevity and reliability … OWC says that they have extremely high endurance, with over 29,000 total full-card compose cycles, thanks to their use of pseudo-Single-Level Cell (pSLC) innovation– which claims 10x higher endurance than basic SD cards.
As a side note, one thing I discovered quite stunning while doing these tests was the speed irregularity of UHS-II sd card readers. As pointed out above, I attempted 5 different readers from widely known brands throughout the tests, with compose speed outcomes as low as 185MB/sec and as high as 260MB/sec on the exact same card depending upon which reader I was utilizing. For this reason, I dont think we can truly blame OWC if our own tests do not quite match up with OWCs tests. The card reader used definitely comes into play and we dont know which reader OWC was utilizing for their own “real-world tests”– it would be great if memory card manufacturers might publish this information along with their speed declares so that we can all gain from those speeds in the house and not be paralyzed by our card readers. I require to do some more testing with all of these readers and various cards, however anticipate a post on this subject in the future!
While all of the cards performed a little below the advertised speeds printed on the packaging, they all carried out rather consistently, although there was a small dip in compose speed on the 64GB capacity card for some factor. A ~ 9MB/sec difference is only about a 3.6% variance from the other 3, which is quite negligible at these speeds. Over an hours worth of transfers, it has to do with an extra 2 minutes.
The typical read and write speeds of all 4 capabilities
UHS-II cards are still quite pricey compared to their UHS-I equivalents, but they have actually boiled down in cost a lot over the last number of years. And while OWCs UHS-II V90 cards might still appear a little costly, sitting around $1 per gigabyte, compared to the UHS-II V60 cards available on the marketplace today, they are at the lower end of the rate variety for UHS-II V90 cards with much of the competition costing 10-50% more for the exact same capacities.
Keep in mind: Its also worth explaining at this time that the 128GB ProGrade Digital V90 card in the same reader on the same USB 3.2 Gen 2 socket on the same computer offered typical read & & write speeds of only 248MB/sec and 220MB/sec respectively. This is significantly lower than all four OWC cards in this review, although likewise well above the V90 spec.
The OWC cards are a solid competitor if you need (or simply desire) a V90 UHS-II card. They easily satisfy and surpass the expectations needed of the V90 specification, however do keep in mind that if you desire those max advertised read & & compose speeds when youre using them on the computer, it will depend greatly on your card reader.
As the speed claims, OWC also boasts up to 10x the endurance of contending cards, with up to 10x as much overall information written before the cards pass away out. The short version is that when it comes to speed, the memory card reader you pick matters simply as much as the memory card speed itself. I evaluated 5 various card readers from Lexar, SanDisk, Hoodman and even OWCs own UHS-II USB hub but the ProGrade reader came up on leading and the most consistent speeds from one test to the next with each card I tried from a number of various brand names when plugged into the USB 3.2 Gen 2 Type-C USB socket on my ASUS ZenBook Pro. The card reader used certainly comes into play and we dont understand which reader OWC was utilizing for their own “real-world tests”– it would be nice if memory card producers might publish this information along with their speed claims so that we can all benefit from those speeds at house and not be maimed by our card readers. While all of the cards carried out a little below the marketed speeds printed on the product packaging, they all carried out quite regularly, although there was a minor dip in compose speed on the 64GB capacity card for some factor.
For numerous of us, that speed distinction between V60 and V90 may not be essential provided the speeds that most of our video cameras really require right now. And even if your camera does not require it right now, dumping files from V90 cards to your computer is still going to be faster than discharging V60 cards.
The OWC Atlas S Pro UHS-II SD Cards are available to purchase now in 4 capacities of 32GB for $39, 64GB for $69, 128GB for $119 and 256GB for $249.