ProGrade Digital Gold CFExpress 4.0 Type B 2TB Memory Card Review – 3400MB/s Speeds with 1500MB/s Sustained Write

TEMPS, SUSTAINED WRITES AND TRUE DATA TESTING

TEMPERATURES

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 Gold 4.0 CFExpressB 2TB Memory Card was 67°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 Gold 4.0 CFExpressB 2TB Memory Card held a sustained write speed average of 1500MB/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.

The PG Gold 4.0 placed second right behind the PG Iridium 4.0 with respect to data transfer, as can only be expected.

CFEXPRESSB COMPATIBILITY AND PERFORMANCE CHART

REPORT ANALYSIS AND FINAL THOUGHTS

The two top ProGrade CFExpressB Memory Cards right now have to be the Iridium 4.0 and the Gold 4.0, the Iridium being a 1.6TB size while the Gold 4.0 is 2TB.  They both have the same RAW capacity but the Iridium designates that much more NAND for overprovisioning to provide for faster speeds, reliability and lifespan.  These are probably the two top cards in the world right now.  We are more than happy to inspire and invite competition to send in their product.

The ProGrade Digital Gold 4.0 2TB Memory Card has read and write speeds of 3562MB/s read and 3169MB/s write data throughput with 630K read and write IOPS.  This is better than listed specs. This SSD is available in assorted capacities, comes with a 3-year limited warranty and includes some great software to maintain the card.  Checking Amazon, we can see availability right now with pricing set at $161.99 (512GB), $280.99 (1TB) and $509.99 for the 2TB version we are testing today.

CHECK PGD GOLD 4.0 CFEXPRESSB CARD PRICING AT AMAZON