AMD昨天发布Zen 5架构的锐龙9000系列桌面处理器Granite Ridge,与其一同发布的还有AMD
800系主板中的X870E和X870,两者都标配USB4接口,当然了,新的处理器依然采用AM5接口,所以现有的AMD 600系主板其实只需要更新BIOS就能使用新处理器。
实际上除了X870E和X870之外,AMD还准备了B850和B840,稍早前技嘉泄露的PPT其实就有较多信息,现在techpowerup给出了AMD
800系主板的具体信息。
预览var tableid = settableid();
document.write('');
Table().init({
title: "AMD 800/600系列芯片规格对比",
header: ["型号", "X870E","X870","B850","B840","X670E","X670","B650E","B650"],
width: '100%',
columnWidth: 'MAX', //表格单元宽度,"MAX"最大内容显示,""AVG"平均,"AUTO"自动,指定[15,16,20]
id: tableid,
data: [
["CPU超频","√","√","√","×","√","√","√","√"],
["内存超频","√","√","√","√","√","√","√","√"],
["PCIe x16","Gen 5","Gen 5","Gen 5","Gen 4","Gen 5","Gen 4","Gen 5","Gen 4"],
["CPU M.2口","Gen 5","Gen 5","可选Gen 5","Gen 4","Gen 5","Gen 4","Gen 5","Gen 5"],
["板载USB4","√","√","可选","×","可选","可选","可选","可选"],
["通用PCIe","Gen 4 x12Gen 3 x8","Gen 4 x8Gen 3 x4","Gen 4 x8Gen 3 x4","Gen 3 x8","Gen 4 x12Gen 3 x8","Gen 4 x12Gen 3 x8","Gen 4 x8Gen 3 x4","Gen 4 x8Gen 3 x4"],
["芯片","2*Prom21","Prom21","Prom21","Prom19","2*Prom21","2*Prom21","Prom21","Prom21",]
]
});在AMD 600系主板上,型号后缀的E代表CPU提供的PCIe x16插槽是否支持5.0,而CPU提供的M.2接口均支持PCIe
5.0。到了AMD
800系,X870E和X870的差别就有点大了,X870E配了两颗Prom21南桥,整体规格其实就是配了USB4接口的X670E,由CPU提供的PCIe
x16和M.2接口均支持PCIe 5.0,主板提供了12条PCIe 4.0和8条PCIe 3.0。
而X870只有一颗Prom21南桥,在PCIe
5.0和USB4的支持上与X870E是相同的,但通用PCIe缩减到只有8条PCIe 4.0和4条PCIe 3.0,这规格看起来就是配了USB4接口的B650E。
到了B850,USB4与PCIe 5.0的M.2口就成了可选项,但PCIe
x16接口依然是5.0的,通用PCIe通道和X870相同,规格和B650接近,只是PCIe x16与CPU M.2口是否强制支持5.0这个反了。
上面所说的三款AMD
800系主板都支持CPU与内存超频的,但到了B840,它不支持CPU超频,支持内存超频,南桥变成了Prom19,不支持PCIe 4.0,只可提供8条PCIe
3.0,而且CPU提供的PCIe通道也只有4.0,没有USB 4接口,它的规格其实与A620更接近。