TEMPS, SUSTAINED WRITES AND TRUE DATA TESTING
Two characteristics that became very important with the introduction of CFexpress as a mainstream storage medium were temperature and sustained write speeds. We measure temperature by monitoring and updating a Crystal DiskInfo Benchmark while a large 85GB 8K file transfer is being performed. This is the extreme of what one might see in this environment. An important aspect to remember is that the temperature results we obtain are the extreme. They are the hottest the card got during any period of our testing which was constantly monitored. It does not speak to the median or typical temperatures one might expect which would be around the low 30°C mark.
With this in mind, the highest temperature reached with the ProGrade CFExpress Type B GOLD 2.0 Memory Card was 59°C and there was no throttling of this card any time during our testing.
SUSTAINED WRITE PERFORMANCE
We determine sustained write performance by transferring a 85GB 8K media folder from the PC to the CFexpress Type B card. This test is vital to those looking at digital storage for high end 4K and 8K video recording.
The ProGrade Digital CFExpress Type B GOLD 2.0 Memory Card held a sustained write speed of 1510MB/s throughout the transfer which is well above the minimum standard of 400MB/s.
REAL WORLD FILE TRANSFER COMPARISON
Our Real World File Transfer Test is conducted through the transfer of data from one spot on the test drive to another to give us the truest of transfer speed results for that device.
WE actually expected a better showing with respect to placement of the GOLD 2.0 in this chart. After all, its speeds reflect what should be a top tier result and it had very good OS small file transfer speeds which we don’t see that often.
REPORT ANALYSIS AND FINAL THOUGHTS
The ProGrade Digital CFExpress Type B 1TB Memory Card moves us a step forward in the memory industry as it demonstrates that we can have higher sustained write performance with higher capacities. Is 1.5GB/s sustained write speed necessary to ensure your digital camera works as it should. No. the VPG 400 certification was introduced by the CompactFlash® Association and 400MB/s is the industry standard. I look at storage speed as I do a car. If we only needed a certain speed to get us from Point A to Point B, why do we have sports cars?
At speeds of just under 1900MB/s read, 1700MB/s write and 1500MB/s sustained write, the ProGrade Digital CFExpress Type B Memory Card is the Ferrari of flash. Include a 3-year limited warranty, availability in all popular capacities, a 3-year limited warranty and a great price of $400 for the 1TB capacity and this card is sure to be a hit!