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The Finest CFexpress Reminiscence Playing cards in 2022

Best CFexpress Type B Memory Cards

CFexpress has lastly come into its personal and a number of firms are actually producing all kinds of capacities at a variety of costs. However with so many selections, which one do you have to purchase?

CFexpress Sort B is, proper now, the most typical “subsequent era” reminiscence card format and has all however completely received out over the SD Affiliation’s flawed SD Specific format regardless of its lofty guarantees. Whereas CFexpress Sort A can also be coming into its personal, solely Sony is utilizing the format in its mirrorless cameras and on the time of publication, solely three firms are producing that card format.

When extra can be found, this information will develop to incorporate CFexpress Sort A as nicely however, for now, the 2 choices from ProGrade Digital and Sony carry out mainly identically. PetaPixel has not obtained Delkin’s possibility to check.

Each different digital camera firm moreover Sony that has up to date to the newest and best reminiscence card format is utilizing Sort B, and as such there are much more choices within the market.

However all that efficiency comes at a literal value: CFexpress Sort B playing cards can get fairly costly. To avoid wasting you the wallet-ache of creating a nasty choice, we’ve created a rigorous multi-stage check to place CFexpress playing cards by means of the wringer and enable you make the very best shopping for choices.

Under is an inventory of all of the CFexpress Sort B playing cards included in our testing:

PetaPixel will replace these outcomes periodically as we acquire extra playing cards, so ensure to bookmark this story and test again once you’re able to make a purchase order.

The Exams

To guage which playing cards carried out greatest, we subjected every to a sequence of checks. Within the case the place a card producer additionally provides a card reader, we used paired these merchandise collectively. If an organization didn’t present PetaPixel with a reader, checks had been carried out on the ProGrade Digital CFexpress Sort B and SD UHS-II twin card reader.

First, we examined the playing cards with Blackmagic Velocity Take a look at to get numbers for the common peak learn and write speeds that may be anticipated when loading and unloading information to a pc. We then stuffed the playing cards at greater than three-quarters of every of their capacities and examined the pace once more to make it possible for including information to the playing cards doesn’t have an effect on efficiency. These checks present us with a baseline degree of efficiency to count on.

The second check goes past peak speeds and appears at sustained speeds, that are quite a bit more durable for reminiscence card producers to hit persistently excessive numbers. These checks are carried out with HD Tune, one of some industry-standard benchmarks for measuring reminiscence efficiency, and are proven as a mean of learn and write pace efficiency, known as switch pace.

Within the third check, we put all of the playing cards in a Canon EOS R5 and requested it to file at 8K RAW for so long as it may. The R5 will overheat after about 20 minutes of recording at this decision, so if the cardboard is ready to constantly log that information for that complete time with out dropping seen frames, we logged it as a “PASS.” Principally, if the cardboard is ready to file for so long as the digital camera is ready to ship it information, it could be unlikely {that a} photographer or videographer would discover any situation with the playing cards within the subject.

The ultimate check is probably the most related for photographers. We examined what number of seconds we may hearth a Canon R5 at most framerate and backbone earlier than we hit the bounds of the buffer. We requested the digital camera to file each RAW and the best high quality JPEG to load it with probably the most quantity of information. This check was carried out 3 times and the outcomes had been averaged.

The Outcomes

Disk Velocity Exams

CFexpress Type B Peak Read and Write Speeds

On this check, greater is healthier. Prime performers right here go to Delkin and AngelBird primarily based on each the peaks of each learn and write efficiency, though there have been a number of playing cards that carried out very well. Acer and Prograde’s Gold sequence playing cards carried out the worst right here, however with speeds which might be certainly not “unhealthy.”

Sustained Disk Velocity Exams

CFexpress Type B Sustained Transfer speeds

On this check, greater is healthier and three manufacturers stood out: SanDisk Excessive Professional, ProGrade Digital Cobalt, and Delkin Black Sequence. Delkin, specifically, rated the best sustained switch pace of any card we examined. Acer scored the worst right here because the divide between its greatest and worst switch speeds through the benchmark was very broad.

EOS R5 8K RAW Video Report Take a look at Outcomes:

  • SanDisk Excessive Professional


  • ProGrade Digital Gold


  • ProGrade Digital Cobalt


  • Acer


  • Angelbird AV PRO


  • Delkin Units Black Sequence


Now we have not but examined a CFexpress Sort B card that’s unable to maintain up with the Canon R5’s 8K RAW recording necessities. In all circumstances, the R5 overheated earlier than a reminiscence card failed.

Burst Picture Take a look at

CFexpress Photo Burst Times

On this check, greater is healthier. ProGrade Digital Cobalt, Angelbird AV PRO, and Delkin Black had been all inside a margin of error, although Delkin eeked out the general win with a mean of 19.43 seconds of steady taking pictures earlier than we stuffed the buffer. ProGrade was sizzling on its heels with 19.4 seconds.

Insights, Takeaways, and Suggestions

This is likely to be a great time to say why the speeds we noticed in testing are nowhere close to the speeds any of the businesses placed on the packaging. Nearly each CFexpress card guarantees learn speeds at or above 1,700 MB/s, however the very best we noticed didn’t even get to 900 MB/s peak speeds or transcend 400 MB/s of sustained pace.

It’s because these peak speeds had been most definitely obtained in laboratory environments with the SSD bus plugged immediately into a number PC. Whereas this can give absolutely the most efficiency the silicon is ready to produce, it’s additionally not something near a real-world scenario. Our checks purpose to present you a greater thought of what to really count on.

Prograde digital memory card and reader

Video Efficiency

Let’s get to the excellent news: each card we examined labored to our satisfaction in the case of recording high-resolution video information. Each card, whatever the speeds promised, was capable of ingest 8K RAW video footage till the digital camera overheated, which implies it’s extremely unlikely that anybody would run into any points with the playing cards when taking pictures within the subject — the digital camera will fail earlier than the cardboard does.

Even when a card doesn’t even come near the promised peak learn or write speeds seen on the facet of the field (which none of them did, by the way in which), it doesn’t matter. For video, Acer, which promised the least in the case of learn and write speeds, carried out identically to Angelbird which promised probably the most.

Of observe, a few of these manufacturers promise excessive sustained write speeds, however none of them appear to qualify for the Compact Flash Affiliation’s VPG400 certification which requires 400 MB/s sustained speeds — which might be why none of them have that certification in contrast to the newest card from Exascend or Lexar, neither of which now we have examined as they aren’t but accessible. So whereas AngelBird guarantees some critically excessive sustained speeds on its web site and in advertising supplies, we weren’t capable of replicate them utilizing industry-standard software program.

Angelbird Memory card and reader

That mentioned, there could also be a cause for that. Angelbird is extraordinarily nitpicky about which playing cards are designed for which cameras which may imply that it does have some type of particular tuning to work with cameras higher than with pc software program. This looks like a stretch, however now we have no strategy to inform.

For probably the most half, these playing cards had been all fairly constant of their efficiency throughout our benchmarking excluding Acer, which was much more frenetic in how a lot it jumped from excessive speeds to low speeds and offers us pause recommending it for video workflows.

Picture Efficiency

Some manufacturers separated themselves from the pack within the images part, nonetheless, and there are clear winners and losers in the case of lengthy intervals of burst photograph efficiency.

Virtually each card we examined would be capable of deal with what we take into account “regular” burst photograph taking pictures. It is vitally uncommon for a photographer to want to fireplace constantly for 20 seconds and extra prone to hearth in bursts of 5 to seven seconds with a couple of seconds of inactivity in between. As such, the one card we’d advocate patrons draw back from is ProGrade’s Gold sequence, which received’t be capable of maintain as much as what we take into account practical burst photograph necessities.

The Finest Choices

All which means of the playing cards we examined, we advocate going with SanDisk’s Excessive Professional, Angelbird’s AV PRO, ProGrade Digital’s Cobalt sequence, or Delkin’s Black Sequence. These playing cards posted glorious efficiency in each video and photograph testing in addition to our computer-based benchmarking. You’ll be protected to select up any of those, so store for what’s on sale.

Of those, if capability is your largest concern, Angelbird might be the very best guess because it presently is the one model to supply a whopping 4TB in a single card. However when you pressure our hand and make us declare one general winner…

The Finest CFexpress Sort B Card in 2022

In case you are seeking to purchase the very best card with probably the most dependable efficiency, then we advocate the Delkin Units Black Sequence. Throughout testing, Delkin took probably the most wins in the case of efficiency in our pc benchmarks in addition to real-world use circumstances.

Delkin Devices CFexpress Card in reader

It’s additionally the newest CFexpress card to be introduced, which has us hopeful that coming playing cards from opponents will proceed to lift the bar on efficiency. Its solely draw back is capability the place Delkin gives a most of 650GB.

PetaPixel’s Alternative: Delkin Units Black Sequence CFexpress Sort B reminiscence card

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