在效能正式解禁前，我們先來看看 NVIDIA 自家設計的 GeForce RTX 5090 Founders Edition 創始版細節吧。
外箱和包裝盒延續 GeForce RTX 40 系列箱盒一體設計的概念。由於 RTX 50 系列的最高階的 RTX 5090 卡身厚度僅僅 2 槽，因此外箱與包裝盒體積都縮減到比較精巧的身形，運送起來也比較方便、經濟。
包裝盒這次無任何裝飾性印刷，依舊由瓦楞紙板層疊而成，形狀呼應顯卡外觀稍有腰身的意象，僅於封面浮雕斗大的 GEFORCE RTX 5090 字樣。
值得留意的是，這次搭配的 PCIe 轉 12V-2×6 接線改成極軟的線材，再用繩套包覆，除了維持質感，也可以免 RTX 40 系列轉接線由於線材過硬引發裝機接觸不良與過載燒毀等情事。
RTX 5090 創始版外型類似前兩代創始版的 8 字形鋁框環繞全卡，陽極氧化色調比 RTX 3090 創始版再深沉冷調一些的灰黑色。
這次使用名為「Double Flow Through」的散熱器設計，雙風扇全都改到正面，直接對著鰭片吹拂，氣流便可穿越鰭片至顯卡後方。
正面風扇外的區域連同中央腰身處都使用黑色金屬罩覆蓋，僅在兩側留下兩條線型通風口，相較過去其片外露的張揚風格，這次內斂許多。
浮雕刻印裝飾沒有缺席，RTX 5090 字樣出現在背面中央靠外側的黑色金屬遮罩上，沿著框體斜線邊緣落款。正面與背面框體系上小的斜切面則分別有 RTX 5090 字樣與 NVIDIA Logo 浮雕。顯卡頂部尾端也留有 GEFORCE RTX 字樣的燈號。
由於熱氣不再需要從顯卡檔板處吹出，因此視訊輸出的檔板就沒有開孔了。上顯卡背面風扇的出風口是唯一散熱鰭片外露之處，這兩處鰭片造型上稍微做了一些內凹設計，營造卡身更纖薄的視覺感受。
從 PCB 設計可以看到，12V-2×6 電源接頭並非平貼於 PCB，而是立於 PCB 上，設計上比較類似 RTX 30 系列創始版的，斜向顯卡尾端，這樣接線也比較不易折彎線材。
另外由於顯卡 PCIe 介面升級到 PCIe 5.0 x16，由於需要更大更穩定的傳輸頻寬，針腳配置做了許多訊號最佳化形狀設計。
結合先前釋出的資料，我們得知 Double Flow Through 設計更有效讓積熱帶離顯卡，同時維持更低的風扇轉速，再搭配 3D 均熱板 + 5 根熱導管，才有辦法用 2 槽厚的散熱器，以低噪音方式解除 RTX 5090 的 575W 高熱。
更多 GeForce RTX 5090 詳細性能實測成績，請靜待台灣時間 1 月 23 日 22:00 解禁。
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