A memory card speed comparison between all the most popular SD memory cards taken in the Canon T6S.
This guide will help you find the best memory cards for your shooting style.
Canon T6S Memory Card Speeds
In-camera test with the Canon T6S. The results will be just about the same in the Canon T6 as well.
USB 3.0 read and write speeds are determined using CrystalDiskMark on Windows 10.
| SD Memory Cards | USB 3.0 Read | USB 3.0 Write | Canon T6s |
| UHS-II | |||
| Transcend | 290.2 MB/s | 182.1 MB/s | 64.24 MB/s |
| Lexar 2000x | 272.7 MB/s | 244.5 MB/s | 62.80 MB/s |
| Toshiba Exceria Pro | 258.8 MB/s | 226.5 MB/s | 59.10 MB/s |
| Lexar 1000x | 147.4 MB/s | 78.4 MB/s | 56.32 MB/s |
| Delkin 250 | 253.5 MB/s | 219.6 MB/s | 54.70 MB/s |
| Sandisk Extreme Pro 280 | 260.5 MB/s | 214.8 MB/s | 36.09 MB/s |
| UHS-I | |||
| Sandisk Extreme Pro U3 | 89.0 MB/s | 84.7 MB/s | 63.15 MB/s |
| Kingston U3 | 88.1 MB/s | 74.3 MB/s | 60.04 MB/s |
| Sony U3 – Old Model | 87.2 MB/s | 71.9 MB/s | 54.35 MB/s |
| Lexar 633x U3 | 85.6 MB/s | 61.2 MB/s | 53.38 MB/s |
| Sandisk Extreme Plus U3 | 88.9 MB/s | 62.0 MB/s | 53.29 MB/s |
| Lexar 600x U1 | 85.6 MB/s | 60.1 MB/s | 51.30 MB/s |
| PNY Elite Performance U1 | 86.1 MB/s | 54.5 MB/s | 51.20 MB/s |
| PNY Elite Performance U1 | 86.8 MB/s | 77.2 MB/s | 50.32 MB/s |
| PNY Elite Performance U3 | 87.9 MB/s | 61.6 MB/s | 49.19 MB/s |
| Transcend U3 | 87.7 MB/s | 64.1 MB/s | 48.77 MB/s |
| Sandisk Extreme U3 | 71.3 MB/s | 52.1 MB/s | 44.43 MB/s |
| Samsung U1 EVO | 43.9 MB/s | 22.7 MB/s | 26.06 MB/s |
The best-performing card is the SanDisk Extreme Pro, but the Kingston and Sony cards are also very fast and can sometimes be found at a lower price. In real-world shooting conditions, you probably won’t notice a difference of 5-10 MB/s in casual shooting, so it might not be a bad idea to go with a less expensive option.
However, the buffer on the T6S is not very large, and if you want to do a lot of burst shooting, you could run into significant wait time while it clears.
Best UHS-II Memory Card
Best UHS-I Memory Cards
- SanDisk Extreme Pro U3 64GB – Amazon / Adorama
- Kingston U3 64GB – Amazon / Adorama
- Sony U3 64GB – Amazon
Best Memory Card Reader
If you want the best USB 3.0 Memory card reader that supports UHS-II, check out the following comparison:
The fastest is the Lexar SR2 – Amazon
Camera Specs
Sensor: APS-C 24.2MP / Processor: Digic 6
SD Memory Card Type: UHS-I
5fps – continuous shooting with autofocus
Avg. RAW Files Size – 28.7 MB
Avg. JPEG File Size – 6.9 MB
Shots Taken To Fill Buffer: 9
Time Taken To Clear Buffer: 2.45 seconds * With Sandisk Extreme Pro
Est. Size Of Buffer: 250MB
Should You Use UHS-II Memory Cards For The Canon T6S?
You won’t see any benefit to using the more expensive UHS-II memory cards unless you’re looking to improve the file transfer speeds from your card to your computer. This only improves with a USB 3.0 UHS-II memory card reader.
Best SD Memory Cards For The Canon T6S, T6 Conclusions
All the high-end cards perform well, but there is a clear winner among UHS-I memory cards. That is the SanDisk Extreme Pro. Although not the cheapest SD memory card, it performs best.
If you want more of a bargain with very close to the same speeds, check out the Sony; their memory cards have been very reliable and are a great brand. Lexar and Kingston also make very dependable cards.
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