Hi everyone,
first Post here. So i did some Benchmarks with 5d Mark III and some KomputerBay Cards 64 GB 1000x UMDA7. All purchased within the last week,
First Card:
[Edit]Update Post. Now with Benchmark in Movie Mode and GD Off. No Warmup.[Edit]

OLD First Test with GD On

For own reference here a SanDisk Extreme Pro 90MB/s 16GB:

[Edit]I forgot to tell the SanDisk was just a 16 GB Card. As mentioned by Walter Schulz below, Global Draw was off on the SanDisk. The Test with the SanDisk was not really for reference. More a self check for me how the KomputerBay perform to a Brand Manufacturer. Nonetheless i thought GD On makes the card read/write slower, am i right?[Edit]
I use them all formatted as FAT. The KomputerBay Cards came pre-formatted as ExFAT. Reading speeds on the Mac were horrible so i formatted them within the Camera and they performed very good in Black Magic Speed Test and AJA System Test. Used a Transcend USB 3 Card Reader.
Recording seems to be continuous, tried some 1.5 to 2 minute takes. Also when splitting in 4GB chunks looks good.
best regards,
Heiko