TechPowerUp reviewed the Samsung 970 Pro 512 GB
A quote from the article:
Samsung's 970 Pro flagship SSD offers incredible performance, especially when it comes to writes, where it tops the charts with up to 2.4 GB/s, thanks to the use of MLC flash. Reads are even faster at 3.5 GB/s. If only the SSD was more affordable: $200 for 512 GB is not exactly cheap.Samsung 970 Pro 512 GB Review