The Seagate FireCuda 510 SSD impresses with transfer rates reaching 4 GB/s; random reads go up to 475k IOPS. Under the hood, the drive uses Toshiba 3D TLC flash, paired with Hynix DDR4 DRAM. Sustained transfer rates are excellent, even when the large SLC cache is exhausted, and thermals are good, too.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips