This is a new in sealed clamshell holder AMD Ryzen 7 5700X3D AM4 socket super high performance gaming CPU. Features 8 cores/16 threads running at 3 GHz base clock and 4.1 GHz boost clock. Supports DDR4 memory. What makes it X3D is a massive 96MB L3 cache compared to 32MB on non X3D chips. This huge L3 cache greatly increases gaming performance! TDP is 105W and does not include a cooling device. Ideally your installing this on a B550/X570 motherboard with updated bios. Out of production now so buy it while you can!