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The Greatest CFexpress Reminiscence Playing cards in 2022

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 must you 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 properly however, for now, the 2 choices from ProGrade Digital and Sony carry out principally identically. PetaPixel has not acquired Delkin’s choice to check.

Each different digicam firm moreover Sony that has up to date to the most recent and biggest 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 constructing a foul determination, we’ve created a rigorous multi-stage check to place CFexpress playing cards by means of the wringer and provide help to make the perfect shopping for choices.

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

PetaPixel will replace these outcomes periodically as we receive extra playing cards, so make certain to bookmark this story and verify again whenever you’re able to make a purchase order.

The Exams

To guage which playing cards carried out finest, we subjected every to a collection of exams. 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, exams 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 Pace Check to get numbers for the common peak learn and write speeds that may be anticipated when loading and unloading knowledge to a pc. We then crammed the playing cards at greater than three-quarters of every of their capacities and examined the velocity once more to ensure that including knowledge to the playing cards doesn’t have an effect on efficiency. These exams present us with a baseline degree of efficiency to anticipate.

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 exams are carried out with HD Tune, one of some industry-standard benchmarks for measuring reminiscence efficiency, and are proven as a median of learn and write velocity efficiency, known as switch velocity.

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 repeatedly log that knowledge 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 digicam is ready to ship it knowledge, it might be unlikely {that a} photographer or videographer would discover any subject with the playing cards within the area.

The ultimate check is probably the most related for photographers. We examined what number of seconds we may fireplace a Canon R5 at most framerate and determination earlier than we hit the boundaries of the buffer. We requested the digicam to file each RAW and the very best high quality JPEG to load it with probably the most quantity of knowledge. This check was carried out thrice and the outcomes had been averaged.

The Outcomes

Disk Pace 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 collection playing cards carried out the worst right here, however with speeds which can be in no way “unhealthy.”

Sustained Disk Pace 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 Collection. Delkin, particularly, rated the very best sustained switch velocity of any card we examined. Acer scored the worst right here because the divide between its finest and worst switch speeds through the benchmark was very large.

EOS R5 8K RAW Video Report Check Outcomes:

  • SanDisk Excessive Professional


  • ProGrade Digital Gold


  • ProGrade Digital Cobalt


  • Acer


  • Angelbird AV PRO


  • Delkin Units Black Collection


We’ve got 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 Check

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 median of 19.43 seconds of steady taking pictures earlier than we crammed the buffer. ProGrade was scorching on its heels with 19.4 seconds.

Insights, Takeaways, and Suggestions

This may 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 perfect we noticed didn’t even get to 900 MB/s peak speeds or transcend 400 MB/s of sustained velocity.

It is because these peak speeds had been more than likely obtained in laboratory environments with the SSD bus plugged immediately into a bunch PC. Whereas this can give absolutely the most efficiency the silicon is ready to produce, it’s additionally not something near a real-world state of affairs. Our exams goal to present you a greater concept of what to truly anticipate.

Prograde digital memory card and reader

Video Efficiency

Let’s get to the excellent news: each card we examined labored to our satisfaction with regards to recording high-resolution video knowledge. Each card, whatever the speeds promised, was capable of ingest 8K RAW video footage till the digicam overheated, which suggests it’s extremely unlikely that anybody would run into any points with the playing cards when taking pictures within the area — the digicam 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 with regards to learn and write speeds, carried out identically to Angelbird which promised probably the most.

Of word, 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 most recent card from Exascend or Lexar, neither of which we’ve got examined as they aren’t but obtainable. So whereas AngelBird guarantees some severely excessive sustained speeds on its web site and in advertising and marketing 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 motive 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 laptop software program. This looks as if a stretch, however we’ve got no technique 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 provides us pause recommending it for video workflows.

Picture Efficiency

Some manufacturers separated themselves from the pack within the images part, nevertheless, and there are clear winners and losers with regards to lengthy intervals of burst picture efficiency.

Nearly each card we examined would have the ability to deal with what we contemplate “regular” burst picture taking pictures. It is rather uncommon for a photographer to wish to fireplace repeatedly for 20 seconds and extra prone to fireplace in bursts of 5 to seven seconds with a number of seconds of inactivity in between. As such, the one card we’d suggest consumers draw back from is ProGrade’s Gold collection, which received’t have the ability to maintain as much as what we contemplate sensible burst picture necessities.

The Greatest Choices

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

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

The Greatest CFexpress Sort B Card in 2022

In case you are seeking to purchase the perfect card with probably the most dependable efficiency, then we suggest the Delkin Units Black Collection. Throughout testing, Delkin took probably the most wins with regards to efficiency in our laptop 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 rivals 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 Collection CFexpress Sort B reminiscence card

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