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翻译转贴自巴哈
http://ps3.qj.net/Bethesda-PS3-t ... ons/pg/49/aid/81701
作 者:grifon (grifon)
标 题:Bethesda: PS3 technical limitations
时 间:Thu Feb 08 13:23:00 2007
Bethesda: PS3 technical limitations
PS3 - Image 1Amazing games such as The Elder Scrolls IV: Oblivion are
chugging along once PS3 owners try to load as much downloadable
content they can get their mitts on. Why you ask? Well that's because
the PS3 has limitations in memory and bandwidth.
In fact, according to a show from 1up.com, Bethesda claimed that
unlike the PC and 360 versions, there won't be much of anything,
including horse armor. 1up had a few words with Bethesda. While
they're hard at work to bring Oblivion out this 2007, they had a few
gripes with the PS3. Bethesda had this to say:
It's a technical limitation. They just don't have enough memory to
load every piece of downloadable content. They tried it, did some
work-arounds, but the performance isn't there. They hope to have some,
but they're going to have some, but they're going to have to pick and
choose...
因为技术限制,他们没有足够的记忆体来使用下载内容
他们试过了许多方法但仍未得到适切的效率[/COLOR]
But since the Xbox 360 and the PS3 both have 512 MB of memory, PS3
people have been saying that there is no difference. Apparently there
is. According to TheTjalian, the PS3 has 512 MB of memory, but it's
divided into two: 256 MB for the system, 256 MB reserved for textures.
The 360, in contrast, uses around 350 MB or more for textures and the
rest for the system - however there is no system-imposed limit.
上段大概可以知道 Oblivion 的 x360 版本
给了 GPU 350MB 的记忆体来处理材质
个人意见是目前静等 2k 释出 shader 运算法等的更新看看[/COLOR]
It seems that the same technologies that makes the PS3 stand out is
the same reason it's not performing well. Hint? Two words: CELL, RSX.
In an investigation by hardware gurus at Anandtech, they had something
to say:
The downside to the RSX using the Cell for all vertex processing is
pretty significant. Remember that the RSX only has a 22.4GB/s link to
its local memory bandwidth, which is less than 60% of the memory
bandwidth of the GeForce 7800 GTX. In other words, it needs that
additional memory bandwidth from the Cell’s memory controller to be
able to handle more texture-bound games.
上面这段可以对应 IGN 关於活用 SPE 的部份
也可以知道一些技术瓶颈何在[/COLOR]
Yikes! So even while the RSX G70 monster inside the PS3 is better than
a GF 7800 GTX, it can't quite give its all to the system. It's like
getting an elephant through a crevice - okay, okay, not that an
elephant would make a great video card and all. And the Xbox 360 is
not without it's own hiccups and mishaps. And the PS3 does perform on
par with the 360, even with the limitations considered.
You'd think that MS and Sony would get both sides of the cake right:
offer bleeding edge tech and perform at maximum capability.
Unfortunately, we'll have to see another generation of Xbox and
Playstation to know just where they're going with next-gen concepts.. |
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