Have you already viewed the System Requirements for Premiere Elements 14 and Photoshop Elements 14? If not, please review
If you have seen those documents, are you really asking, "Is that a for "best performance" or "must have" requirement?" when you see for Premiere Elements 14
2GHz or faster processor with SSE2 support; dual-core processor required for HDV or AVCHD editing and Blu-ray or AVCHD export; Core i7 required for XAVC S
What is your computer operating system? Does it have an Intel processor?