根据不同的预算和用途，列出4种不同类型的CPU，并简要说明其特点，用json格式输出。
user
{
    "CPU_types": [
        {
            "type": "入门级",
            "model": "Intel Core i3",
            "budget": "低",
            "use_case": "日常办公",
            "features": "基本的多任务处理能力，适合处理文档、浏览网页和观看视频"
        },
        {
            "type": "中端级",
            "model": "AMD Ryzen 5",
            "budget": "中等",
            "use_case": "家庭娱乐",
            "features": "良好的性能和性价比，适合游戏、视频编辑和其他中等负载任务"
        },
        {
            "type": "高端级",
            "model": "Intel Core i7",
            "budget": "高",
            "use_case": "专业工作",
            "features": "强大的多线程处理能力和高频率，适合内容创作、3D建模和复杂计算"
        },
        {
            "type": "旗舰级",
            "model": "AMD Ryzen 9",
            "budget": "非常高",
            "use_case": "高性能需求",
            "features": "顶级的性能，适合极限游戏、高端视频编辑和复杂模拟"
        }
    ]
}
assistant