[情報] AMD很高興幫助Intel和Nvidia啟用SAM

AMD is happy to help Intel and Nvidia enable Smart Access Memory

連結:https://reurl.cc/Y6r6EX

In context: Smart Access Memory, or SAM, is a software/hardware trick that
takes advantage of a PCI Express feature called Base Address Register. So
far, only AMD is using with their new Radeon RX 6000 GPUs to eek out a littleextra performance. It lets the CPU feed information directly into the entire
video memory buffer, instead of just a small portion of it. The result is
about a 5-10% performance improvement depending on the title, which isn't
insignificant.

前情提要： Smart Access Memory或SAM是一種軟體/硬體技巧，它利用了PCIE上的BAR設定。
到目前為止，只有AMD CPU與其新的Radeon RX 6000 GPU配合使用才能獲得一些額外的
性能。它使CPU可以直接存取到整個VRAM，而不僅僅是一小部分。結果取決於遊戲，
大約提高了5-10％，這並不能說是微不足道的。

When AMD announced Smart Access Memory on its latest GPUs, it sounded like
SAM required close cooperation between the CPU and GPU. Consequently, it was
launched as a new feature that only works when AMD RX 6000 GPUs are paired
with AMD Ryzen 5000 CPUs.

當AMD在其最新的GPU上發布Smart Access Memory時，聽起來好像SAM需要CPU和GPU之間的密切合作。因此，它作為一項新功能，僅在將AMD RX 6000 GPU與AMD Ryzen 5000 CPU配對時才可用。

Nvidia, however, believes that a form of SAM could be implemented
universally, as long as all manufacturers can agree on some standards since
it does rely on a PCI Express feature. PC World asked AMD's Scott Herkelman
if AMD think that's possible, and to what extent AMD would support
standardization. This an edited transcript of the interview:

但是，英偉達（Nvidia）相信，只要所有製造商都同意某些標準，可以普遍實作SAM。
因為它確實基於PCI Express功能。《 PC World》問AMD的斯科特·赫克爾
曼（Scott Herkelman），AMD是否認為這是可能的，以及AMD在多大程度上支持標準化。這是採訪的編輯稿：

Q: Will competitors need to push out BIOS updates for their whole ecosystem
of products?

A: I think you'll have to ask them. But I believe that they'll need to work
on their own drivers. Intel will have to work with their own motherboard
manufacturers, and work on their own chipsets. I think there's some work to
do for our competitors.

And, just to be clear, our Radeon group will work with Intel to get them
ready. And I know that our Ryzen group will work with Nvidia. There's alreadyconversations underway. If they're interested in enabling this feature on AMDplatforms, we're not going to stop them.

As a matter of fact, I hope they do. At the end of the day, the gamer wins,
and that's all that matters. We're just the company that could do it the
fastest because we're the only company in the world (finally) with enthusiastGPUs and enthusiast CPUs.

問：競爭對手是否需要為整個產品生態系統推出BIOS更新？

答：我想你必須問他們。但是我相信他們需要自己的驅動程式。英特爾將不得不與自己的主板製造商合作，並在自己的晶片組上工作。我認為我們的競爭對手還有很多工作要做。

而且，需要明確的是，我們的Radeon小組將與Intel合作，為他們做好準備。我知道我們的Ryzen小組將與Nvidia合作。已經開始進行對話。如果他們有興趣在AMD平台上啟用此功能，我們不會阻止他們。

事實上，我希望他們這樣做。歸根結底，玩家贏了，這很重要。我們只是可以最快地做到這一點的公司，因為我們是世界上（最終）擁有發燒友GPU和發燒友CPU的唯一公司。

The standardization of a SAM-like feature could have an impact on the way
games are developed. Although the feature doesn't require developer support,
some games utilize it much more effectively than others: at 1440p, Assassin'sCreed Valhalla sees a 14% improvement, but Shadow of the Tomb Raider only
sees a 6% improvement. If developers are willing, future titles could be
designed to utilize SAM to the greatest extent possible.

類似SAM的功能的標準化可能會影響遊戲的開發方式。儘管該功能不需要開發人員支持，但某些遊戲的使用效率要比其他遊戲高得多：在1440p解析度下，刺客的教條維京紀元
改善了14％，而《古墓奇兵：暗影（Shadow of the Tomb Raider）》
僅改善了6％。如果開發人員願意，可以設計將來遊戲時最大程度地利用SAM。

心得:
A + N或I + A是可以期待看到SAM
有看到有人問舊的A卡會不會更新支援這個功能
問的一定不是電蝦眾
電蝦眾都買新的

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