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Best SD Memory Cards Canon G7XIII
  • Memory Cards

Best Memory Cards | Canon G7X Mark III

  • February 8, 2020
  • AGriffin

We tested all the most popular SD memory cards, both UHS-II and UHS-I in the Canon G7X Mark III to find the best performing and most practical cards.

This is the ultimate guide to finding the best memory cards for the Canon G7X III.

Canon PowerShot G7X Mark III – Amazon / Adorama / Bhphoto

 

Best SD Memory Cards Canon G7X Mark III

When choosing a memory card for the Canon G7X Mark III, there are a few things you should know. The camera is only UHS-I capable and only has a single card slot but the camera will accept any capacity.

 

Top 7 Best Memory Cards

Sandisk Extreme Pro

Here is a quick list of the best performing memory cards for the G7XIII. I’ve listed several cards at various speeds, but any of these cards will give you great performance. My first choice would be the Sandisk Extreme Pro, since it is the best card for Canon, but there are a few other great options in the list that perform very well.

Card Name In-Camera Speed Price
Sandisk Extreme Pro 170MB/s 66.47MB/s Amazon
Kingston Canvas React A1 U3 62.22MB/s  Amazon
Delkin Advantage U3 63.43MB/s Amazon
Sony Professional U3 69.29MB/s Amazon
Sony U3 95MB/s 66.58MB/s Amazon
Toshiba Exceria Pro U3 62.69MB/s Amazon

 

Video Shooters

The Canon G7X III can shoot 4k video at 120Mbps. This translates to about 15MB/s. I ran even the slowest cards in the PowerShot G7X Mark III to test 4k video and I did not have any problems. You can use any of the cards on the list for video just fine.

To be compatible with the video bitrates supported by this camera you will need a memory card that is at least a U3 rating.

 

If you want to see all the essential accessories or the best vlogging accessories –

check out my G7X III Accessory Guide.

 

In-Camera Speed Test

This chart shows how fast each memory card performed in the G7XIII.

To perform the test a continuous burst is shot until the buffer fills. The amount of data created is then calculated against how long it takes for the buffer to clear. This test is run a few times to troubleshoot any problems.

For USB speeds I used Windows 10 with crystal disk.

 

Speed Chart

You can click the top categories to sort by speed.

Memory CardSpeed ClassCanon G7X III WriteUSB ReadUSB Write
Sandisk Extreme Pro 170MB/sUHS-I66.47MB/s99.288.3
Sandisk Extreme PlusUHS-I67.01MB/s99.388.2
Sandisk Extreme U3UHS-I46.99MB/s99.356.8
Sandisk Ultra U1UHS-I25.82MB/s99.534.3
Kingston Canvas React A1 U3*UHS-I62.22MB/s99.682.5
Kingston Canvas Go! U3*UHS-I58.55MB/s99.674.0
Lexar 633x U1UHS-I47.67MB/s95.054.6
Sony Professional U3*UHS-I69.29MB/s98.560.2
Sony U3 94MB/sUHS-I53.75MB/s96.757.5
Sony U3 95MB/sUHS-I66.58MB/s96.685.4
Transcend U3UHS-I68.41MB/s96.787.8
PNY Elite Performance U3UHS-I55.40MB/s96.766.9
Delkin Advantage U3*UHS-I63.43MB/s99.678.8
Toshiba Exceria Pro U3*UHS-I62.69MB/s97.874.7
Toshiba Exceria U3*UHS-I28.12MB/s97.229.9
Verbatim Pro+ U3*UHS-I61.46MB/s98.583.7
Verbatim Pro U3*UHS-I54.53MB/s96.668.0
Amplim 667x A1 V30*UHS-I45.74MB/s99.652.2
Sandisk Extreme Pro 300MB/sUHS-II71.27MB/s258.5190.5
Lexar 2000xUHS-II68.40MB/s258.9201.5
Lexar 1667x*UHS-II59.75MB/s----
Lexar 1000xUHS-II69.42MB/s153.483.09
Toshiba Exceria ProUHS-II71.62MB/s263.6223.8
Transcend v90UHS-II70.11MB/s258.2164.9
Sony G Tough*UHS-II72.58MB/s256.8201.0
Sony GUHS-II72.24MB/s258.0206.7
Sony MUHS-II69.56MB/s253.691.6
Delkin Power v90UHS-II71.38MB/s257.6191.0
Delkin Prime v60UHS-II70.34MB/s252.889.1
Fujifilm Elite IIUHS-II70.74MB/s259.3168.4
Adata v90UHS-II70.78MB/s259.4187.4
Hoodman Steel 2000xUHS-II69.67MB/s268.7183.9
Hoodman Steel 1500x*UHS-II67.26MB/s258.1169.2
ProGrade V90*UHS-II68.72MB/s258.2212.8
ProGrade V60*UHS-II51.22MB/s166.9105.9
Amplim 1900x V60*UHS-II69.57MB/s249.8104.5
Angel Bird V90*UHS-II71.09MB/s256.6211.1
Angel Bird V60*UHS-II68.62MB/s166.980.2
FreeTail Evoke Pro V60*UHS-II69.85MB/s238.5102.8

There are a lot of different cards tested with various speed classes and specs. To learn more about what all these numbers mean check out the ultimate guide to memory cards.

 

Canon G7XIII Specs Specs And Buffer Questions

Sensor: 20.2MP 1″ Stacked CMOS Sensor
Processor: DIGIC 8 Image Processor
What Memory Cards? Single Slot UHS-I
Continuous Burst: 20 fps at 20.1 MP
Video: UHD 4K 29.97p [120 Mb/s] FHG 1080p120 [30-120 Mb/s]
What Size Is Buffer? 1.3GB
How Many Shots To Fill Buffer? 45 RAW
How Long To Clear Buffer? 15:43
Memory Card Capacity: This camera supports any size.

 

Recommended Memory Cards | Canon G7X III

Here is a detailed list of each card and why they are recommended.

Top Performers

Sandisk Extreme Pro or Plus 64GB – 

Best Memory Card Canon G7x mkIIIPro Available At: Amazon / Adorama / BHphoto

I’m listing the Sandisk Extreme Pro and Plus cards together since they almost always have very similar performance. These are your best cards. Sandisk has great quality control and a lifetime warranty. Usually, the Plus cards are overpriced.

 

Sony U3 95MB/s or Pro 64GB – 

Recommended Memory Card Canon G7X mk IIIProfessional Available At: Amazon / Adorama

95MB/s Available At: Amazon / Adorama

Sony has a few SD memory cards now. The Sony Professional cards are a little hard to find but they usually perform very well. If you can find a good Sony Professional card that’s priced well grab it. Otherwise, they have a 95MB/s and a 94MB/s. The 94MB/s card, which is red, is newer but often runs slower.

 

Delkin Advantage U3 64GB

Recommended SD Card Canon G7xIIIAvailable At: Amazon / Adorama / BHphoto

While sometimes a little hard to find, the Delkin Advantage cards have been top performers in most of my tests. They are one of the best brands of memory cards, up there with Sandisk and Sony. I personally use Delkin cards in many of my cameras.

 

Kingston Canvas React U3 64GB

Recommended SD Card Canon G7x IIIAvailable At: Amazon / Adorama / BHphoto

Kingston has always been a great company to go to for memory cards. They’ve rebranded their cards awhile back and are now calling their best card the Canvas React. These are great and very reliable.

 

Canon G7X III File Size Video Record Times

The Canon G7X III has a 4k video bitrate of about 120Mbps which translates to about 15MB/s.

This means when you’re shooting video you’ll be shooting 15MB ever second.

Canon G7X III video bitrate performance.

4k 24p / 30p – 120Mbps
1080p 29.97p/59.94p/119.88p [30 to 120 Mbps]

Here is a chart that will show how much footage each card will be able to hold.

Canon G7X III 64GB 128GB 256GB 512GB
4k 120Mbps 71min 142min 284min 569min
1080p60 142min 284min 569min 1138min
1080p30 284min 569min 1138min 2276min

 

How To Avoid Counterfeit Cards

Counterfeit cards have become a real problem when buying memory cards online. To help you find if you have a counterfeit card or not, I’m now including a quick guide in my memory card articles.

 

How Counterfeit Memory Cards Work

Often counterfeit memory cards work by hacking the memory controller. So you’ll buy a 128GB card, your computer and your camera tell you it’s a 128GB card, but it actually only has 32GB of flash memory. 

The controllers are usually hacked to tell you the card is bigger than it really is.

This is a problem because you’ll for days or even weeks before breaking the threshold and when you do, boom, dead card. 

This is why when you read some reviews online you’ll see someone say, “the card was great for a few weeks then it died.”

 

Where To Buy Memory Cards

If possible, always try to buy your SD cards from a trusted source. Adorama, BHphoto local stores. Avoid auctions sites and be careful with websites that use mixed inventory. Meaning they throw all the cards into a bin that comes from different sources.

The best and easiest thing you can do is check the size of the memory card right when you get it. Fill it to its max capacity.

If you buy from Amazon try to make sure the seller is a trusted source. There are rumors Amazon combines inventory, but it could depend on your region.

 

Best Memory Cards Canon G7X III | Conclusions

 

The Canon G7X III does not have the hardware to support UHS-II memory cards, so all you need to buy is UHS-I cards just make sure it’s at least a U3 rating so you don’t run into any video buffer issues.

Try not to spend more than $20 on a 64GB card and most of the high-end SD UHS-I cards perform very well.

**This website contains affiliate links and I will be compensated if you click them to make a purchase.
AGriffin

Professional editor, blogger and photographer from Los Angeles California.

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  • Canon G7X III
  • Memory Card Speed Tests
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