華碩為了 NVIDIA GeForce RTX 50 系列 GPU 開創了全新頂級產品線 Astral，首款產品當然就是最頂級的 RTX 5090 啦，而且居然動用了 4 風扇來幫助散熱。一起來看看 ROG Astral GeForce RTX 5090 有多猛。
設計
ROG Astral 系列的靈感來自宇宙無限的廣闊和美麗，首款產品動用厚實鋁合金進行壓鑄和 CNC 切割，構築整張顯卡的結實框架，搭配富有科技感的切割溝槽，給人如同星際艦艇般的氛圍與強大動力感。
散熱核心是大面積的均熱板覆蓋 GPU 晶片、GDDR7 記憶體顆粒等元件，另一面搭配特殊的銑削通道，讓 8 根熱導管維持圓形的方式鑲嵌進去，最大化導熱效果。
均熱板與 GPU 之間的接觸面還加上了相變散熱片，這個導熱介質可透過 GPU 的高溫融解成接近液體狀態，讓散熱器與 GPU 能夠更緊密接合，提高導熱效率。
除了大家熟知的正面 3 風扇，華碩首度在顯卡背面加上第 4 顆風扇，讓氣流穿越散熱鰭片的效果更好，更不容易在顯卡周圍積熱。這些散熱鰭片間距經過精密的計算，在綿密程度與風通效果之間取得最大平衡點與最大散熱效率。
配件也是很有心，除了常規的電源轉接線與簡易支撐架，華碩還準備了精緻的 ROG Astral 顯卡造型鍵帽、PCB 尺和磁鐵徽章，氛圍感滿點。
同場加映「GPU 優先」電源供應器 ROG Thor III
華碩在自家的 ROG Thor III 和 ROG Strix Platinum 系列電源供應器首度導入「GPU 優先」智慧穩壓器，透過特殊的接點與線材，在顯卡突然提高負載時，把電壓的變動程度縮到最小，保持系統穩定性與最佳效能。這些電源供應器還使用 GaN MOSFET，進一步提高電源效率。
實測
RTX 5090 原本就猛，再加上 ROG Astral GeForce RTX 5090 是張超頻版顯卡，性能更兇猛。搭配 DLSS 4 畫質模式就能在 4K 重光追遊戲創出 200 fps 以上的流暢度，如果使用 DLSS 4 效能模式，畫面流暢度甚至一舉突破 300 fps。
由於是超頻版的關係，燒機最大瞬間功耗達到驚人的 680W，但 GPU 溫度只有 64.1°C，可見 ROG Astral 搭配的 4 風扇散熱器的解熱能力真的很兇猛。
總結
華碩 ROG Astral GeForce RTX 5090 的外觀結構真的是無庸置疑的霸氣，又同時給予精細的質感，為用戶帶來絕佳的裝機視覺效果。
強大的 GeForce RTX 5090 GPU 與猛烈的超頻幅度不僅有頂級性能享受，透過先進的散熱設計還能維持低溫穩定運作，真不愧為頂級顯卡，當然也需要多準備一些錢錢才有辦法帶回家啦。
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