SSD vs. HDD, Windows 10 HD

Specification. Device:_FUJITSU Model:_ESPRIMO P720 CPU:_Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz RAM:_4GB DDR3 1600MHz Samsung CD-ROM:_HL-DT-ST DVDRAM GH22NS70 HDD system disk:_WDC WD5000AAKS-75V0A0 500GB SSD new system disk: _WDC WDS100T2B0A-00SM50 1TB