Extreme SD Card Showdown - 4K Video Capture Edition
Linus Tech Tips
·Linus Tech Tips
·2015-05-07
·
1,500 words · ~7 min read
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are we ready yeah are you sure you're ready for this actually hold on a second
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let me just let me just fix the uh well no you don't it's it's already I I set
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it up before we did anything so you don't have to change oh right this one
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no no oh oh oh oh okay you know what
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just for forget it I'll just I'll host it you you operate the camera let's just
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go back to the normal way doing things what's uh what's this video about again SD
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cards no right now I remember why you're
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doing this okay let's
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go cooler Masters case mod World Series is your opportunity to show off your
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modding skills and win great prizes entries close February 7th 2015 click
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now to learn more hey guys what's up Brandon here so SD cards they're boring
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right line us obviously thought so but they're way more exciting than you
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probably
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realize
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mine's changed no okay fine but onto my actual
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point SD cards are one of the most important things I personally use on a
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day-to-day basis and while I get some black for the number of them I've
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collected over the years i' if I didn't have them I wouldn't be able to do my
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job so learning about them for me was worthwhile investment and I'm going to share some of that knowledge with you
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guys to start with we need to demystify some of the confusing numbers and
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letters associated with the different classes of SD cards cuz there's a lot of
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them class 4 class 6 class 10 UHS 1 UHS
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3 does your brain hurt yet let's break it down each of these numbered classes
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represents an increase in the minimum right speed in megabytes that a card can
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can handle with UHS 1 and UHS 3 denoting
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the most recent Ultra high-speed cards recently there's been a lot of hype
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about consumer devices that can shoot 4K video and 4K support and SD cards which
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is why the UHS 3 standard was introduced and is the focus of our video today does
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it matter do I need a UHS 3 card to shoot 4K video well I wanted to know and
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I also wanted more SD cards to play with so I asked lus if I could put in a few sample requests and he said oh yeah I
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guess as long as you do the benchmarking on them so I did I ended up with nine
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cards in total and I ran a number of different benchmarks including Crystal dismark as well as some real world
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testing on a Canon 60 DSLR and our lovely Panasonic GH4 which is a 4K 30fps
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capable camera these two cameras will be
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amongst the most demanding cameras that can run on SD cards with the higher
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performance options like our fs700 requiring SSD or proprietary media
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something that you can see in this video here so how do we do well the numbers
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speak for themselves most cards performed in Crystal dismark as expected
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within the range of their rating benchmarking was done in an MSI gs70
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with the built-in card reader which I used out of convenience when I observed
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its results were pretty much identical to the one we were getting with the Standalone and Kingston USB 3 reader now
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crystal dismark is only a synthetic benchmarking software and those numbers
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are not necessarily representative of real world performance where other
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factors like cam former can come into play so on to our real world tests for
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the GH4 test I shot multiple 30 second and 1 minute Clips on each card the
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first clip is in 4k at 30 FPS shooting at a bit rate of 100 megabits per second
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the second clip is in 1080P at 30 FPS shooting in a very stressful bit rate of
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200 megabits per second I was astonished to discover that every single card in
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our Roundup worked perfectly with the GH4 I did a combination of static shots
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with a slow pan and tilt with each card when playing back the footage in
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Premiere none of them had any drop frames moving on to the Canon 6D test I
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shot 30 raw Stills per card using the burst shooting mode here are my camera
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settings to give a visual representation of this I recorded audio of the shutter
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during the T test the audio bunches that you see here are the 18 raw Stills that
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can be taken within the camera's buffer and every Spike after that is the
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following picture leading up to a total of 30 to my surprise the Sony card came
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in the slowest in this test even with its higher read right speed compared to
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the lower-end ad and Kingston cards with sandis cards taking the win with very
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solid performance in the shortest amount of time so conclusion time is One SD
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card really better than another yes is it absolutely necessary to have a UHS 3
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card for 4K video the short answer seems to be no
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for now while only half the cards in this test are classified as UHS one they
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all manage to have high enough speeds to handle the 100 to 200 megabit bit rates
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of the G4S recording modes but in future cameras we might see higher supported
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bit rates and you'll need to be careful to get the card that can handle the right speeds to match it should be noted
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that if you're shopping that read speeds are far less important since they'll only come into play when ingesting
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footage that you've already shot something that is rarely the bottleneck
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with our workflow so thanks for watching let me know what you guys thought of the
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video If you enjoyed it if you want to see me talk about tech on the other side
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of the lens more lonus said he would pay for me to go to NAB this year so please
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leave lots of honest feedback under the video I really want to go to NB so even
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if you hated it you probably should tell
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him that you loved it and all right all right all right all right all right all
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right all right all right yeah just getting pathetic over there so guys like
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you did say though please do leave comments if you enjoyed Brandon's first
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on camera appearance ever he really is our resident expert when it comes to
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this stuff and uh we really appreciate you guys watching this video and we also
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slogan is shave time shave money even though it's a bit of a cheesy joke but they're kind of cheesy guys actually
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very good guys anyway you guys are good guys too like it if you liked it dislike
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