圖靈架構加持為遊戲迎接即時光線追蹤世代, NVIDIA RTX 20 家族 499 美金起

2018.08.21 02:23AM
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繼上週在 SIGGRAPH 大會宣布支援即時光線追蹤技術的新世代繪圖卡 Quadro RTX ,以及其採用的全新架構 Turing /圖靈之後, NVIDIA 在科隆舉辦的 Gamescom 發表了睽違兩年的全新顯示卡,一開場時, NVIDIA 執行長黃仁勳認真的表示,先前網路所有的洩露與規格都是假的。

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正式產品名稱定名為 GeForce RTX 系列,即日起接受預購,其中 RTX 2080 與 RTX 2080 Ti 預計 9 月 20 日開賣,初期提供三款產品,包括 499 美金起, 6 Giga Rays 、 45 RTX-OPS 的 RTX 2070 ,以及 699 美金起、 8GB RAM 、 8 Giga Rays 與 60 RTX-OPS 的  RTX 2080 ,以及 999 美金起, 11GB RAM 、 10 Giga Rays 與 78 RTX-OPS 的 RTX2080 Ti 。

至於 Founder Edition 的售價則如下: RTX 2070 FE 建議售價為 599 美金, RTX 2080 FE 建議售價為 799 美金, RTX 2080 FE 建議售價為 1,199 美金。

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GeForce RTX 20 系列從 GTX 改為 RTX ,也象徵由 Turing /圖靈架構中加入 RT Core 與 Tensor Core 所帶來的即時光線追蹤世代來臨;基於 Turing /圖靈架構的 RTX 系列基於 12nm 製程,搭配三星 14Gbit GDDR6 記憶體顆粒( RTX 2080 Ti 為 352bit ,記憶體頻寬為 616GBps ,而 RTX 2080 與 RTX 2070 為 256bit ,記憶體頻寬為 448GBps ),輸出介面則具備可支援 8K HDR 的 DP 1.4a with DSR ,以及支援針對 VR 的 VirturalLink 介面(自製卡未強制須具備),基本上可進行 4 路螢幕輸出。

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官方公布的數據中, RTX 2080 Ti 具備 4,352 個 CUDA Core ,預設時脈為 1,545MHz , TDP 為 250W ,而預設超頻為 1,635MHz 的 Founder Edition 則為 260W ;RTX 2080 Ti 具備 2,944 個 CUDA Core ,預設時脈為 1,733MHz , TDP 為 215W ,而預設超頻為 1,800MHz 的 Founder Edition 則為 225W ;RTX 2070 則具備 2,304 個 CUDA Core ,預設時脈為 1,620MHz , TDP 為 175W ,預設超頻為 1,710MHz 的 Founder Edition 則為 185W 。另外, Founder Edition 的 RTX 2080 Ti 與 RTX 2080 卡長為 266.74 公分, RTX 2070 卡長為 228.6 公分。

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此次 GeForce RTX 20 系列的公板採用雙風扇設計取代 GTX 10 世代的單鼓風扇設計,強調此次的散熱器設計較先前不僅寧靜度提升,更解放圖靈架構的散熱性能。以此次的 RTX 2070 定價較先前 GTX 1070 Ti 的 449 美金小漲,但除了基礎性能的提升,由 Turing 圖靈架構帶來支援即時光線追蹤的附加價值,依該會對於熱血 PC 遊戲玩家有不錯的吸引力。

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