Komputerbay 600x SD cards - Results and questions

[Ramon]

Here are some of my benchmark results using the Komputerbay 32GB SDHC 600x on a 700D:





As you can see the one card got a maximum write speed of 28.9 MB\s, and the other card got a write speed of 30.1 MB\s.
The maximum resolutions that will consistently record 24p raw are 1280 x 536 for the first, and 1344 x 562 for the other card. Those are 2.39:1.
I recorded an 18GB raw file, 14.675 frames at 1344 x 562 with no problems. Taking the resolution up however, will result in 3 second files

The cards are rated to go at 40 Mb/s write and 90 MB/s read.
I formatted the cards as ExFAT with the default allocation unit size..

Am I using the right settings? Is 30 MB/s really the best i can get? SD cards don't really come faster
Is it possible to tweak it a bit more, or format the card differently to get better results?

The Komputerbay SD cards come in 8Gb, 16GB and 32GB for SDHC. 64GB and 128GB for the SDXC ones. They say the 128GB card does 60 MB/s write, but for $ 125, I don't feel like trying it out.

Thanks ^^

[Oswald]

I also have  KB 600x card. I get same performance and I am disappointed.

[PressureFM]

You are limited by the hardware, not the SD card.

[Walter Schulz]

I doubt this one, PressureFM. Running benchmark on 650D (which is limited to 40 MByte/s, too) gives me write speeds up to 37.1 MByte/s. Sandisk Extreme Pro, 8 GB.

Ciao
Walter

[Oswald]

You are limited by the hardware, not the SD card.

Eos M is capable to write about 40mb/s. I have extreme pro and it writes about 38mb/s.

[Ramon]

I also have  KB 600x card. I get same performance and I am disappointed.

I doubt this one, PressureFM. Running benchmark on 650D (which is limited to 40 MByte/s, too) gives me write speeds up to 37.1 MByte/s. Sandisk Extreme Pro, 8 GB.

Ciao
Walter

Oswald, what camera are you using? ;o
I wouldn't know either if that makes sence, Walter Schulz. The 700D is supposed to be limited to a 40 MB/s write.

Should I get the sandisk extreme pro one? I am now able to record raw at 1344 x 562 flawless 24p. What are your max resolutions with the extreme pro cards?

I just hoped the Komputerbay cards would do 40 MB/s ;\