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erdatsai
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加入日期: Sep 2004
文章: 180
引用:
作者aya0091
XSX的不同速記憶體架構當然是出於成本考量
不然全都用統一高速記憶體一定更好

但切分成10G+6G之後,10G獲得比PS5更快的速度,相對6G則比PS5更慢
如果運用的好當然沒問題,但容不容易優化當然是個疑慮
不然也不會有相關討論串專門針對這點提出各種看法

Why Xbox Series X's Dumb 10+6GB Memory Configuration Isn't As Dumb As You Think
https://www.reddit.com/r/hardware/c...b_106gb_memory/


我推測的XSX記憶體架構和這老外寫的,沒有什麼不一樣

哪裡有疑慮? 哪裡有各種看法?
文中就寫了:
In terms of how the memory is allocated, games get a total of 13.5GB in total, which encompasses all 10GB of GPU optimal memory and 3.5GB of standard memory. This leaves 2.5GB of GDDR6 memory from the slower pool for the operating system and the front-end shell. From Microsoft's perspective, it is still a unified memory system, even if performance can vary. "In conversations with developers, it's typically easy for games to more than fill up their standard memory quota with CPU, audio data, stack data, and executable data, script data, and developers like such a trade-off when it gives them more potential bandwidth," says Goossen.

現成就有audio data, stack data, executable data, script data等對頻寬沒有大量需求的資料可放到普通記憶體中
而且開發者很喜歡這種能獲得更高頻寬的妥協


引用:
作者aya0091
那GTX 970的3.5G事件是怎麼來的?

你貼的連結裡就有人回答了:
ImSpartacus811: The 970 was weird because Nvidia disabled part of one of the memory controllers. The memory chips, themselves, were unaffected.

老黃動刀動到記憶體控制器上才造成悲劇,情況完全不同
舊 2020-09-18, 01:20 PM #178
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