Yes, the sn570 500GB NVMe is a genuine product.
Yes, the sn570 500GB NVMe is a genuine product.
the controller and nand chip match the original specs (just double-checking that) but are manufactured in china instead of taiwan. i’m not sure, though the iops seem low—maybe because one cpu core was at full speed? after cache exhaustion, sequential speeds hover around 350-400mbps. there’s a 6gb cache, and i really wish things were different. it’s been the second day with this issue, and i’m desperate for help. this is important for family photos and as a boot drive.
It might be produced in Taiwan with hints pointing to China or vice versa. Expressing my thoughts is challenging because these meanings are often mixed up. Right now, Taiwan claims independence, while China asserts it is part of its territory. Given the ongoing trade restrictions with China, if something is labeled as made in China, it’s probably from Taiwan. The ROC moved there in 1949 during a civil conflict with the Chinese Communist Party. Since then, the ROC has maintained control over Taiwan and several surrounding islands, resulting in separate governance between the two regions.
i also had a slight misunderstanding earlier. the crystal disk was running at 4k with QD32T1, which caused it to score poorly and limited its usage to just one thread of my cpu (meaning nvme wasn't operating at full capacity). when i applied the NVME preset in Crystal Disk Mark 8.0, the situation improved significantly. with a 4k random test using QD32T16 and an 1GB file, the cpu performed normally across all threads, and the disk reached 100% utilization. score: 372k IOPS at 4k QD32T16 with a 1GB file, matching the advertised performance. however, switching to an 8GB file instead of 1GB dropped the 4K QD32T16 results to 169k IOPS—still well above the 81k IOs from the 4K QD32T1 with an 8GB file (which seems to be what wd claims). overall, the QD32T16 no longer acts as a bottleneck. in short, my issue appears resolved. the sequential write after cache filling remains around 350-450MBps, while reviews claim about 550MBps for 1TB files. this might be due to capacity limitations rather than speed.
SOLUTION : in crystaldiskmark8.0 the IOPS for 1GB and 8GB filesize differ noticeably. The 1GB benchmark scores higher than the larger sizes. Brands often use 1GB to market their SSDs, so it's likely they're targeting that range. CPU performance plays a bigger role in IOPS, particularly in high-speed scenarios like 4K Q1T1 where single-threaded speed is crucial. It's recommended to set the device to NVME SSD mode in crystaldiskmark. If your CPU is weaker, consider adjusting the threads for random4k Q1T1 to Q1T2 so the CPU can keep up with its single-threaded capabilities. This won't solve a weak CPU issue, but it will confirm your SSD is handling the workload properly.