AMD銳龍AI 400G桌面CPU PCIe通道大縮水！最多才12條可用

快科技

03/05

快科技3月5日消息，AMD本周正式發布了基於Gorgon Point芯片、Zen 5架構的銳龍AI 400與Ryzen AI PRO 400台式機處理器系列，接替此前的Ryzen 8000G系列。不過官網規格顯示，新系列在PCIe擴展能力上出現縮水，平台可用通道數量較上一代明顯收緊。以目前目前規格最高的銳龍AI 7 450G為例，集成16條PCIe 4.0通道，但4條被固定用於AM5插槽與主...

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10:36","share_image_url":"https://static.laohu8.com/9a95c1376e76363c1401fee7d3717173","id":"2617591599","market":"us","top_or_hot":-1,"title":"AMD銳龍AI 400G桌面CPU PCIe通道大縮水！最多才12條可用","media":"快科技","content":"<div>\n<p>快科技3月5日消息，AMD本周正式發布了基於Gorgon Point芯片、Zen 5架構的銳龍AI 400與Ryzen AI PRO 400台式機處理器系列，接替此前的Ryzen 8000G系列。不過官網規格顯示，新系列在PCIe擴展能力上出現縮水，平台可用通道數量較上一代明顯收緊。以目前目前規格最高的銳龍AI 7 450G為例，集成16條PCIe 4.0通道，但4條被固定用於AM5插槽與主...</p>\n\n<a href=\"http://gu.qq.com/resources/shy/news/detail-v2/index.html#/?id=nesSN20260305104447a6a4902f&s=b\">網頁鏈接</a>\n\n</div>\n","source":"tencent","html":"<!DOCTYPE html>\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n<meta name=\"viewport\" content=\"width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no\"/>\n<meta name=\"format-detection\" content=\"telephone=no,email=no,address=no\" />\n<title>AMD銳龍AI 400G桌面CPU PCIe通道大縮水！最多才12條可用</title>\n<style 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href=\"http://gu.qq.com/resources/shy/news/detail-v2/index.html#/?id=nesSN20260305104447a6a4902f&s=b\">網頁鏈接</a>\n\n</div>\n\n<div class=\"bt-text\">\n\n\n<p> 來源：<a href=\"http://gu.qq.com/resources/shy/news/detail-v2/index.html#/?id=nesSN20260305104447a6a4902f&s=b\">快科技</a></p>\n<p>為提升您的閱讀體驗，我們對本頁面進行了排版優化</p>\n\n\n</div>\n</article>\n</div>\n</body>\n</html>\n","isBrief":false,"type":0,"news_type":1,"symbol":"LU2264538146.SGD","symbol_name":"Fullerton Lux Funds - Global Absolute Alpha A Acc SGD","start_time":0,"source_url":"http://gu.qq.com/resources/shy/news/detail-v2/index.html#/?id=nesSN20260305104447a6a4902f&s=b","article_id":"2617591599","we_media_id":null,"thumbnails":[],"rights":{"source":"tencent","url":"http://gu.qq.com/resources/shy/news/detail-v2/index.html#/?id=nesSN20260305104447a6a4902f&s=b","rn_cache_url":null,"customStyle":"body{padding-top:10px;}#news_title{font-weight:bold;#titleStyle#;}#news_description 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Only up to 12 items available","themeId":null,"isJumpTheme":false,"ttsUrl":null,"symbols_score_info":{"AMDU":0.6,"DAMD":0.6,"AMDL":0.6,"AMDY":0.6,"AMDD":0.6,"AMD":1.95,"AMDW":0.6,"AMDG":0.6,"AMYY":0.6,"AMUU":0.6},"content_text":"快科技3月5日消息，AMD本周正式發布了基於Gorgon Point芯片、Zen 5架構的鋭龍AI 400與Ryzen AI PRO 400台式機處理器系列，接替此前的Ryzen 8000G系列。不過官網規格顯示，新系列在PCIe擴展能力上出現縮水，平台可用通道數量較上一代明顯收緊。以目前目前規格最高的鋭龍AI 7 450G為例，集成16條PCIe 4.0通道，但4條被固定用於AM5插槽與主板芯片組互聯，實際可用僅剩12條。對比兩年前發布的Zen 4架構鋭龍7 8700G，新芯片少了4條可用通道，直接影響平台升級潛力。這也意味着當用户安裝一塊佔用4條通道的M.2 NVMe固態硬盤後，分配給獨立顯卡的通道將僅剩8條，導致顯卡只能以PCIe 4.0 x8的規格運行。PCIe 4.0 x8帶寬等效於PCIe 3.0 x16，HardwareUnboxed測試顯示，在部分遊戲和設定下可導致30%以上的性能損失。對於顯存較小的顯卡如RX 9060 XT 8GB和RTX 5060 Ti 8GB，x8模式會帶來明顯的卡頓、掉幀和畫面撕裂問題，如RTX 5060 Ti 16GB版本在PCIe 3.0 x16模式下，幀率表現可達8GB版本的近7倍。若使用鋭龍AI 5 435G等定位更低的型號，可用通道甚至可能降至10條，10條可用通道意味着無法同時讓SSD以x4模式與顯卡x8模式並行運行。","kind":"news","is_publish_news":true,"is_publish_highlight":false,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"0","news_tag":"","news_rank":0,"symbols":[],"gpt_button":1,"need_auth":false,"code":"91000000","status":"200"}}}