Peter Glaskowsky说larrabee仅有2006年的性能的原因

gaiban

larrabee相当于2006年的产品,是Peter Glaskowsky说的,Peter Glaskowsky哪是nv员工?
8.5
The paper itself, however, has already been published, and I was able to get a copy of it. (Unfortunately, as you'll see at that link, the paper is normally available only to members of the Association for Computing Machinery.)  

Peter Glaskowsky是在8月4号去Association for Computing Machinery下载了larrabee的paper后,用了一天的时间来好好分析, 在8月5号得出结论:
而Peter Glaskowsky原意是7-25核心@1G主频的larrabee--相当于2006年的产品vintage Nvidia or Advanced Micro Devices/ATI .  
唯一的依据是因为paper里F.E.A.R跑到60帧以上larrabee需要7-25核心@1G主频.

Peter Glaskowsky:But given that limitation of the test procedure, the results don't look very good. To render F.E.A.R. at 60 frames per second--a common definition of good-enough gaming performance--required from 7 to 25 cores, assuming each was running at 1GHz. Although there's a range here depending on the complexity of each frame, good gameplay requires maintaining a high frame rate--so it's possible that F.E.A.R. would, in practice, require at least a 16-core Larrabee processor.And that's about the performance of a 2006-vintage Nvidia or Advanced Micro Devices/ATI graphics chip. This year's chips are three to four times as fast.

-----  Peter Glaskowsky为了说明其分析是专业合理的,特地强调一天内看了paper好几次,还有机会与nv/ati的设计师有很多讨论.
I'll be at Siggraph again this year, and I'll have more to say after I've read this paper through a few more times and had a chance to speak with some of the folks I know at AMD, Nvidia, and other companies in the graphics market.

见Peter Glaskowsky的分析原文
http://business2-cnet.com.com/83 ... 84-23.html?tag=more

[ 本帖最后由 gaiban 于 2008-8-26 12:00 编辑 ]

Prescott

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{lol:] {lol:]

insect2006

这个玩笑开大了。。。

gaiban

http://news.cnet.com/8301-13512_3-10006184-23.html

Prescott

仔细看了遍文章，这个作者不比这里的小白们多知道多少

gaiban

那是专家.  挺懂的.

Prescott

原帖由 gaiban 于 2008-8-26 17:46 发表
那是专家.  挺懂的.

砖家吧

tansailuffy

{lol:]  砖家年年有。不是还有砖家说癞蛤蟆搬家是因为环境好了么，结果没几天就地震了。

the_god_of_pig

别瞎琢磨了{lol:]


1600x1200 4 sample
Figure 10: Overall performance: shows the number of Larrabee
Units (cores running at 1 GHz) needed to achieve 60fps for of the
series of sample frames in each game.



[ 本帖最后由 the_god_of_pig 于 2008-8-26 18:23 编辑 ]

itany

NV刚刚说AMD在显卡上不可能有作为，还一大把原因，结果就被F了……
现在又来说Intel，真是不长记性啊