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标题: VIA Isaiah处理器究竟面向的是什么应用? [打印本页]

作者: Tanknet    时间: 2007-6-16 10:08
标题: VIA Isaiah处理器究竟面向的是什么应用?
3GHz的单周期SSE3 遮遮掩掩不肯直说
不过我早说过,一个顺序执行的核心,有了快的SIMD处理速率也发挥不了,因为指令发射和内存访问是瓶颈
这也就是为什么Isaiah(C8?)处理器要引入乱序Tomasulo结构的原因。VIA的cache本来就强,32-way的,指令发射这一环上再做好,Isaiah处理器性能赶超P4估计是没问题的。

Isaiah是个怪胎。>20级的流水线,高高的频率,快速SIMD,但IPC仍然低于PIII,这个嵌入式处理器到底是面向什么应用的呢?
还有可以动态地调整指令发射方式(顺序、乱序),功耗原因?如果一个处理器流水线长度>20级, 却是顺序发射,它到底是要拼什么嵌入式应用,请大家评论一下。

我估计最可能的是UMPC。但UMPC上用那么高的频率做什么?难道不会导致高功耗吗?

Q22: Beyond security, are other cool features planned?

A22:The next chip has some tools to do computationally intensive thingswhere hardware provides a big advantage. But I don't want to say yetwhat they are.

Q23: Would they be useful for multimedia?

Yes, for multimedia, and for other things.

Q24: Like a DSP?

A24: Kind of like that.

Q25:Okay, we won't push. We appreciate you taking the time to speak withus. We can't imagine getting the president of AMD or Intel to do this.

A25:Our whole strategy is so close to the, if you will, the fate of Linux.We identify so much with it. We're low-cost, aimed at the commonperson, we're aimed at new applications, and we don't have any massivePR or marketing or sales budget, so. Actually, I have a specialsoftness in my heart for Linux. I think without Linux our businesswould be much less than what it is today. It's just very important tous, so, I wanted to give you guys the time.
作者: 奭冥    时间: 2007-6-16 18:22
都把VIA忘了,没想到还在做“C8”
作者: Dr.BT    时间: 2007-6-16 18:41
自杀用的,就这么简单:huh:
作者: tonychs    时间: 2007-6-16 18:52
听说以前的很省电而且发热量低到不用风扇。
超市收银机等应该不错。
作者: feixiaoyu    时间: 2007-6-16 19:34
自动取款机用3g ,你取100,它吐1w阿.:lol:
作者: itany    时间: 2007-6-17 10:54
应该是面向BT二奶机用的吧
毕竟电影下来之后还要看一下,高频和单周期SSE3对视频播放的益处最大啊
作者: 口口口乐    时间: 2007-6-17 11:21
如果发热量低,工控市场还是很大地
作者: itany    时间: 2007-6-17 12:22
原帖由 口口口乐 于 2007-6-17 11:21 发表
如果发热量低,工控市场还是很大地


Tanknet的意思是既然是工控机,要SSE3干什么? :(
到时候经理直接通过视频会议系统,在收款机上边给收银员开会
收银员一边干活,一边听指示,效率高 (_(

[ 本帖最后由 itany 于 2007-6-17 12:23 编辑 ]
作者: 奭冥    时间: 2007-6-18 11:27
性能赶上PM的话就很不错,很有竞争力了




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