Today we are looking at the highest capacity drives your money can buy. We are reviewing the Seagate Desktop HDD 4TB vs WD Black 4TB Hard Drive. The Western Digital Black 4TB Desktop Hard Drive (pn WD400FAEX.) comes with a nice 5 year warranty and is currently priced at $283.00. The Seagate Desktop 4TB HDD (pn: ST400DM000) comes with a 2 year warranty but is over $100 cheaper at $172.86. It is quite apparent that their is a major price difference as well as a difference in the warranty coverage you will receive. We are always partial to Western Digital Drives; however, Seagate gives Western Digital a run for their money. They both feature Sata III 6Gb/s interface and a 64MB cache. The WD Black 4TB Hard Drive spins at 7200 RPM vs the slower Seagate Desktop HDD 4TB spins at a slow 5900 RPM. Below I will display the performance differences between these two drives in order to help determine which drive is the best fit for you.
Both drives are 4TB; however, they differ in platter sizes. The WD Black 4TB Hard Drive features five 800GB platters, while the Seagate Desktop HDD 4TB features four 1TB platters. Although, the Seagate Desktop HDD 4TB has a slower spindle speed, due to the absence of a fifth platter Seagate claims that their drive is faster overall and uses up to 35% less power compared to similar drives. Both drives are the same thickness, at 26.11mm. The Seagate Desktop HDD 4TB drive exhibits higher read and write transfer rates, but the WD Black 4TB Hard Drive has lower data access times and higher burst rates. Both drives had approximately 130 MB/s read/write speeds. The WD Black 4TB Hard Drive had the highest sequential transfer speeds, average access times, maximum access times, average speed and overall higher IOPS in the 4K write tests. The WD Black 4TB Hard Drive had an overall average speed in the random access performance test in HD Tune Pro 5.5 with 224 IPOS for a 4KB file, whereas, the Seagate Desktop HDD 4TB had 96 IOPS; therefore, placing the WD Black 4TB Hard Drive in first with more than double the performance in all random access testing. Both the WD Black 4TB Hard Drive and Seagate Desktop HDD 4TB had sequential read/write speeds of 150MB/s for a 1000MB file in Crystal Mark 4.0.2f. We also ran a test in ATTO Disk Benchmark 2.47 and found that the WD Black 4TB Hard Drive reached 163MB/s read & 155MB/s write, while the Seagate Desktop HDD 4TB had 152MB/s read & 150MB write speed. In Futuremark PCMark 7 1.40, the WD Black 4TB Hard Drive received 2196 points vs 2027 points for the Seagate Desktop HDD 4TB. The Raw secondary storage test put the WD Black 4TB Hard Drive on top with 19.3% faster speed. The WD Black 4TB Hard Drive had an average temp of 35C; whereas, the Seagate Desktop HDD 4TB was around 29C. Both drives appeared to be quiet and were inaudible over our system fans.
As I stated previously, we are partial to Western Digital drives here at Nerd Herd, but Seagate Desktop HDD 4TB did a great job with this drive. Overall, the WD Black 4TB Hard Drive outperformed the Seagate Desktop HDD 4TB, but not by much. We would recommend either drive as an excellent upgrade for an an existing system or a storage drive in a new system. If you can afford the extra ponies, we would recommend the WD Black 4TB Hard Drive due to the additional 3 year extended warranty.
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