NVidia Fast Sync - 顯卡

By Oscar
at 2016-09-07T15:34
at 2016-09-07T15:34
Table of Contents
前幾天在電蝦有人提到(其實是戰起來了XD)NV的Fast Sync
一開始我只看到這項科技是針對顯卡吐出張數的速度高過螢幕更新率而出現,
然後可以應用於所有螢幕。
後來去看了一下,雖然不太確定實做差異,
但從網路上看到的說法是效果就跟 triple buffer 的 vsync(垂直同步) 一樣,
確實是可以減少輸入延遲。
其實我不太確定輸入延遲的公認定義是啥,
這邊先定義一下 輸入延遲 為 從畫面開始生成到被放到螢幕上的時間差距
在60Hz的螢幕下,假設我一張卡可以達到的fps超過 60fps,
用 vsync 輸入延遲(從開始生成到被放到螢幕上的時間差距) 差不多是 16.67ms
而使用 Fast Sync 的話,
100fps的狀況下輸入延遲最少可以到 10ms
200fps的狀況下輸入延遲最少可以到 5ms
所以也就是說如果在 200fps 的狀況下,
Fast Sync 跟 vsync 的輸入延遲差距最多可以到 11.67ms
這真的差很多嗎?
至少我在打OW的時候,我滿肯定我打輸人絕對不是因為那個延遲。
想請有使用過Fast Sync 的玩家分享一下你們的經驗
--
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顯卡
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