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标题: [新闻] 鬼佬就是牛！显微镜下的wiiu-gpu兼猜测wiiu和ps720的差距。。 [打印本页]

作者: 倍舒爽 时间: 2013-2-5 08:06 标题: 鬼佬就是牛！显微镜下的wiiu-gpu兼猜测wiiu和ps720的差距。。

原帖：
http://www.neogaf.com/forum/showthread.php?t=511628
因由就不说了，各位喜欢的可以慢慢在原帖看。。

Red are the (presumed) shader clusters. Blue are the (presumed) TMUs.
The rest of the colorization are simply self-similar components that may not be layed down exactly in square blocks, but are still recognizable.

- The die is exactly 11.88 x 12.33mm (146.48mm)

- The large orange block on the left is the 32MB of eDRAM (MEM1). Up: It's 40.72mm, and takes up 27.8% of the die. Judging by Chipworks comments above, and the densities Renesas offers for 40nm eDRAM, it is very likely possible at this point that the MEM1 pool of eDRAM operates with a bandwidth of 70.4GB/s (550MHz on a 1024 bit interface).

Up: - A bit of counting reveals that the main MEM1 pool of eDRAM is composed of 2048 banks, each of which would be 16KB in size. That means that each small orange rectangle you're looking at is 2KB of eDRAM. This may indicate that the above bandwidth estimate is actually incorrect, and it could in fact be 140.8GB/s (550MHz on a 2048 bit interface).

- The smaller orange block above it seems to be about 3MB or 4MB of eDRAM (Up: It's 4.25mm). This might be the framebuffer for Wii mode, or the L2 texture cache, or something else, we're not 100% sure at this point.

8 shader units with 20 alus in each = 160ALUs @ 550mhz = 176GFLOPs
目前的传闻ps4为1.8tfs，720为1.2tfs
内存带宽为wiiu：22gps+70gps（edram） ps4:176gps 720:68gps+102gps(esram)

当然，比较单精浮只能在相同架构下才能有较大参考性，更先进更有效率的架构和落后或效率低的架构比较就复杂很多了。。

作者: KoeiSangokushi 时间: 2013-2-5 08:24

posted by wap, platform: iPhone

喷了！SP（ALUs）数量只有360的66%！任地狱黑科技啊！

作者: KoeiSangokushi 时间: 2013-2-5 08:25

posted by wap, platform: iPhone

CPU性能只有360的1.2/3.2=37.5%，GPU只有360的160/240=66.7%，任地狱你太强大了！难怪有20帧的使命召唤9！

本帖最后由 KoeiSangokushi 于 2013-2-5 08:26 通过手机版编辑

作者: wk6833795 时间: 2013-2-5 08:30

血轮眼快来找差距:D

作者: 倍舒爽 时间: 2013-2-5 08:39

引用:

原帖由 KoeiSangokushi 于 2013-2-5 08:25 发表
posted by wap, platform: iPhone

CPU性能只有360的1.2/3.2=37.5%，GPU只有360的160/240=66.7%，任地狱你太强大了！难怪有20帧的使命召唤9！

本帖最后由 KoeiSangokushi 于 2013-2-5 08:26 通过手机版编辑

也不能完全这样比啊。。
好像忘了贴这段：

The eight squarish groupings on the right hand side are possibly the VLIW5 shader clusters. However, due to the apparent increased amount of SRAM there, along with the unusual layout and the general changes to the die, it's entirely possible that the number of shaders in each cluster has changed from R700 dies. In fact, at this point it's even possible that the microarchitecture itself has changed, a la the VLIW4 used in some of AMD's 6000 series GPUs. Therefore, we could have a fairly unusual number of shader cores.

作者: dora 时间: 2013-2-5 08:52

刚爬完那边的楼，结果横竖也全都是猜... Anywhere from 352GFLOPS to 528GFLOPS. Meaning 320 to 480 ALU's. 看来还没我笔记本强嘛

作者: 战神 时间: 2013-2-5 08:53

次世代跨平台游戏又该PS4XO720一个版本，WiiU另一种缩水版本。

届时三五年后，WiiU下一代主机携PS4XO720级别的性能提前登场~~~~~~~~~~~~~~

作者: vice2015 时间: 2013-2-5 08:53

还以为是pc论坛，对硬件完全不懂的飘过

作者: mushroommg 时间: 2013-2-5 08:55

喷了，这才是高端数毛，对着游戏画面数弱爆了

作者: AngryMulch 时间: 2013-2-5 08:58

HD4550 ～HD4650 之间

最早之前原本想说最起码应该要有320SP

没想到才160,,,

[ 本帖最后由 AngryMulch 于 2013-2-5 09:16 编辑 ]

作者: majian1 时间: 2013-2-5 09:03

posted by wap, platform: UC

国内数毛党弱爆了。

作者: AngryMulch 时间: 2013-2-5 09:10

[ 本帖最后由 AngryMulch 于 2013-2-5 09:36 编辑 ]

作者: wk6833795 时间: 2013-2-5 09:13

这才是真·数毛党。直接撬开天灵盖数大脑皮层褶皱有多少。

作者: Simy 时间: 2013-2-5 09:41

引用:

原帖由 AngryMulch 于 2013-2-5 08:58 发表
HD4550 ～HD4650 之间

最早之前原本想说最起码应该要有320SP

没想到才160,,,

被我报废电脑上的5830秒成渣了

作者: KoeiSangokushi 时间: 2013-2-5 10:05

posted by wap, platform: iPhone

引用:

原帖由 @Simy 于 2013-2-5 09:41 发表
被我报废电脑上的5830秒成渣了

5830我记得有1120个SP

作者: edwang 时间: 2013-2-5 10:09

写轮眼都弱爆了

作者: 飞侠 时间: 2013-2-5 11:56

引用:

原帖由 KoeiSangokushi 于 2013-2-5 08:25 发表
posted by wap, platform: iPhone

CPU性能只有360的1.2/3.2=37.5%，GPU只有360的160/240=66.7%，任地狱你太强大了！难怪有20帧的使命召唤9！

本帖最后由 KoeiSangokushi 于 2013-2-5 08:26 通过手机版编辑

能在如此孱弱的机器上做出20帧，我觉得已经可以了

不管你信不信，我反正信了

作者: 变色龙 时间: 2013-2-5 12:42

引用:

原帖由战神于 2013-2-5 08:53 发表
次世代跨平台游戏又该PS4XO720一个版本，WiiU另一种缩水版本。

届时三五年后，WiiU下一代主机携PS4XO720级别的性能提前登场~~~~~~~~~~~~~~

笑死我了。。。

作者: 便腥惊肛 时间: 2013-2-5 13:08

这才符合老任一贯的作风，硬件成本越低越好，钱捞的越多越好，鬼才相信亏本卖

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