AMD is happy to help Intel and Nvidia enable Smart Access Memory
连结: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 little
extra 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是一种软件/硬件技巧，它利用了PCIE上的BAR设定。
到目前为止，只有AMD CPU与其新的Radeon RX 6000 GPU配合使用才能获得一些额外的
性能。它使CPU可以直接存取到整个VRAM，而不仅仅是一小部分。结果取决于游戏，
大约提高了5-10％，这并不能说是微不足道的。
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.
当AMD在其最新的GPU上发布Smart Access Memory时，听起来好像SAM需要CPU和GPU之间的
密切合作。因此，它作为一项新功能，仅在将AMD RX 6000 GPU与AMD Ryzen 5000 CPU配对
时才可用。
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，英伟达（Nvidia）相信，只要所有制造商都同意某些标准，可以普遍实作SAM。
因为它确实基于PCI Express功能。《 PC World》问AMD的斯科特·赫克尔
曼（Scott Herkelman），AMD是否认为这是可能的，以及AMD在多大程度上支持标准化。
这是采访的编辑稿：
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 already
conversations underway. If they're interested in enabling this feature on AMD
platforms, 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 enthusiast
GPUs and enthusiast CPUs.
问：竞争对手是否需要为整个产品生态系统推出BIOS更新？
答：我想你必须问他们。但是我相信他们需要自己的驱动程式。英特尔将不得不与自己的
主板制造商合作，并在自己的芯片组上工作。我认为我们的竞争对手还有很多工作要做。
而且，需要明确的是，我们的Radeon小组将与Intel合作，为他们做好准备。我知道我们
的Ryzen小组将与Nvidia合作。已经开始进行对话。如果他们有兴趣在AMD平台上启用此功
能，我们不会阻止他们。
事实上，我希望他们这样做。归根结底，玩家赢了，这很重要。我们只是可以最快地做到
这一点的公司，因为我们是世界上（最终）拥有发烧友GPU和发烧友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's
Creed 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.
类似SAM的功能的标准化可能会影响游戏的开发方式。尽管该功能不需要开发人员支持，
但某些游戏的使用效率要比其他游戏高得多：在1440p分辨率下，刺客的教条维京纪元
改善了14％，而《古墓奇兵：暗影（Shadow of the Tomb Raider）》
仅改善了6％。如果开发人员愿意，可以设计将来游戏时最大程度地利用SAM。
心得:
A + N或I + A是可以期待看到SAM
有看到有人问旧的A卡会不会更新支援这个功能
问的一定不是电虾众
电虾众都买新的