NVIDIA 第四代 Tegra —— Wayne 强大到令人难以置信

Edison · 发表于 2011-7-1 18:24

Even though Kal-El hasn't even launched yet, we have received some preliminary information on NVIDIA Wayne. You're free to take this information with a grain of salt, we're just the messengers here.

NVIDIA's Public Tegra Roadmap Shows 28nm Wayne Arriving in 2012, ahead of Logan and Stark

T40 is 4th Generation Tegra, said the people, who asked not to be identified because details are confidential. The prototype Wayne silicon will be released to manufacturers and software developers in December 2011, in order to get ready for the Windows 8 release in October 2012. With Wayne, NVIDIA plans to target smartphone, tablet, netbook and [color=#000064 !important][color=#0064 ! important]notebook market. In order to do just that, the company decided on Batman/Robin strategy, i.e. developing two silicons.

The initial silicon is a quad-core design based on a yet undisclosed ARM architecture. There are two choices: NVIDIA licensed Cortex-A15 and own in-house 64-bit architecture. Given that Project Denver is scheduled for tape-out by the end of 4th quarter - we doubt it. It is safe to assume that Cortex-A15 is being used.

Initial silicon also features "at least 24-core" CUDA-enabled GPU part which resembles contemporary GPU architectures, bringing a lot of [color=#000064 !important][color=#0064 ! important]computing [color=#0064 ! important]performance. The people said that the "10x" performance increase (from Tegra 2) includes a lot of GPU computing power, which is being used for numerous segments. One of such uses was motion-picture sharpening a'la CSI i.e. technology similar to what MotionDSP developed. Lightfield focusing technology was also mentioned to us as "the next big thing" in mobile - and processing side will handle Lightfield on-the-fly using GPU cores.

This first silicon is targeting the 1.5GHz clock for the ARM cores and packs triple-digit GFLOPS number. Given that the competition already announced 2GHz and 2.5GHz parts based on Cortex-A15 [color=#000064 !important][color=#0064 ! important]CPU core, we asked wouldn't 1.5GHz clock prove uncompetitive. The answer was that 1.5GHz is targeted for core-per-core comparison with the A9-equipped "Kal-El" T30 and that final clock speeds depend on the power consumption as the "Robin silicon" needs to keep the same power envelope as Kal-El.

Second Wayne silicon can be described as "Holy Smokes Batman". Unlike 4/24+ "Robin", NVIDIA's is planning an 8CPU/32-64GPU part for tablets, netbook and ultra-low-power notebooks. Think up to 13.3" in screen size. We were confused by the "up to 64" claim as NVIDIA's contemporary Fermi architecture is designed in 32 and 48-core blocks. However, in order to rea**e power targets, [color=#000064 !important][color=#0064 ! important]engineers are working to be as flexible as possible. Whatever the final design ends up being it is a DX11+ compliant part, with full support for OpenGL 4.x and OpenCL 1.x. Also, an interesting note is that PhysX was explicitly mentioned in the "we have full support for PhysX now" sense. Draw your own conclusions on what that means.

The 8-core ARM design is being designed to go head to head against not just ARM competitors, but against the X86 [color=#000064 !important][color=#000064 !important]processors as well. Remember, for Windows 8 Intel should cover top-to-bottom market with the next-gen Atom architecture (22nm Silvermont) on the low end and 22nm Ivy Bridge. At the same time, AMD plans 28nm 4-core Krishna and 2-core Wichita, both based on Enhanced Bobcat CPU core and a [color=#000064 !important][color=#000064 !important]32nm Trinity APU with dual and quad-core designs based on Enhanced Bulldozer core.

In a nuts**, Wayne is actually a split personality - quad-core Robin and octa-core Batman. No doubt, competitors will probably make a reference to Harvey Two-Face Dent.

http://www.brightsideofnews.com/news/2011/6/30/nvidias-28nm-wayne-tegra-to-come-in-two-versions.aspx

PURE布 · 发表于 2011-7-1 18:43

未来的事情很难说所有没发布的产品都是大炮

骨刺 · 发表于 2011-7-1 18:49

只要敢想就有办法达成

Minovsky · 发表于 2011-7-1 19:14

也由不得NVIDIA,死抱桌面显卡,前途麻烦.

只看该作者 · 发表于 2011-7-1 19:22

提示: 作者被禁止或删除内容自动屏蔽

飞鸟真 · 发表于 2011-7-1 19:39

potomac 发表于 2011-7-1 19:22
感觉很危险。
历史很多次证明，
吹的越凶的时候，

啥啥boy 和amd一样，都是光用嘴说什么造不出来。
巫毒和amd一样，坐吃山空不研发新架构

gtx5 · 发表于 2011-7-1 19:52

英伟达Tegra 2处理芯片打造超级手机

solidusmic · 发表于 2011-7-1 19:53

感觉是扯淡.

看看桌面gpu的性能发展曲线就知道了

gtx5 · 发表于 2011-7-1 19:57

本帖最后由 gtx5 于 2011-7-1 22:39 编辑

为何说Tegra 3快过Core 2 Duo

上周的MWC大会上，NVIDIA拿出了代号Kal-El的第三代Tegra处理器，号称全球首款四核移动处理器。在展示过程中，一张性能测试对比幻灯片引起了广泛的关注。根据NVIDIA的说法，在CoreMark 1.0测试中，Kal-El的得分为11354，已经超过了Intel的Core 2 Duo T7200 2GHz处理器（10136）。一颗手机/平板机用ARM处理器性能超越x86桌面平台，这必将成为移动革命中里程碑式的成就。
不过，该结果很快遭到了质疑，ilsistrmista.net撰文指出，NVIDIA官方幻灯片给出的测试环境不够公平。Kal-El Tegra 3搭配了新版GCC 4.4.1编译器，并开启了O3优化和一些硬件相关设定，但是Core 2 Duo T7200却只用了GCC 3.4.4，优化程度也只是普通的O2。因此，他们使用和NVIDIA所示版本接近的编译器，重新测试了Core 2 Duo T7200，成功实现了逆转。T7200得分达到15200分左右，将Tegra 2远远甩在了身后。
那么，NVIDIA真的只是在吹牛么？BSN网站又给出了自己的看法。他们认为，之前的所有描述都忽略了一个事实，目前NVIDIA展示的成绩是来自一颗主频1.0GHz的Tegra 3工程样品。而最终上市型号T30频率将达到1.5GHz。由于CoreMark在同架构下对频率提升的表现几乎是线性的，因此即使采用同样的编译器和优化程度，一颗1.5GHz的Tegra 3得分也将达到17000分以上，再次反超Core 2 Duo T7200。

BSN根据这样的成绩重新列出了对比图表。在给出1.5GHz Tegra 3预计成绩的同时，他们还引入了更高端的Core i3-330M、Core i7-720QM CoreMark得分，以及2.5GHz Cortex-A9 ARM四核的假想成绩（高通MWC上公布的APQ8064应当就是这一水平）。

接下来再来做进一步的对比。如果考虑单位MHz频率得分，Tegra 3每MHz可得11.35分，Core 2架构处理器则为7.6分，领先幅度约50%。当然，Tegra 3是四核处理器，Core 2 Duo则为双核。因此如果再除以核心数，则Tegra 3单个核心每MHz得分2.83分，Core 2 Duo为3.79分。
这样的结果已经非常明了了，Kal-El的性能非常出色，但仍然落后于高端x86架构产品。为了打败目前顶级的x86芯片，ARM处理器需要以两倍的频率，或两倍数量的核心来进行竞争。不过如果再将能耗考虑进去之后，ARM芯片的优势就会显现出来。比如Core 2 Duo功耗在35W以上，而普通ARM SoC只有1到4W。
还有一个方面不得不提。Tegra 3还集成了12核心的GeForce GPU。虽然NVIDIA目前没有透露其具体规格，但如果综合考量Tegra 3的芯片性能，GPU能力也应当包含其中，只是目前还没有通用方法计算而已。总的来看，Intel确实应当小心了，因为再过一两代时间，这些ARM芯片的确可能给x86 CPU带来巨大的威胁。

只看该作者 · 发表于 2011-7-1 20:03

提示: 作者被禁止或删除内容自动屏蔽

705nk · 发表于 2011-7-1 21:25

potomac 发表于 2011-7-1 20:03
换个更现实的测试SPEC，Tegra 4能打平Atom就是奇迹了。

tegra也没有这么弱

黑猫 · 发表于 2011-7-1 21:36

这何止4代，5代，6代都赫然纸上啊。
不过重点应该是CUDA吧，NV在4代开始引入能够支持CUDA的GPU，有点像创新的Zii ARM。

PS：对于ARM A9来说，每核每赫兹性能能达到I7的60%已经算是很强大了，高过Atom了吧

amdxp4800 · 发表于 2011-7-1 22:35

难以置信这么词很双关

鱼儿水中游 · 发表于 2011-7-1 23:18

驱家转帖帝果然**不遗余力。

geneme · 发表于 2011-7-1 23:42

遥远……不关注 {lol:]

shoppingwang · 发表于 2011-7-2 07:18

人有多大胆，地有多大产

cloudol · 发表于 2011-7-2 07:43

t3是t2 5倍 t4是t2 10倍 A15才是A9的两倍?

现在厂商都被t2伤心大呼上当不知道还有没有勇气接受t3 t4

readma · 发表于 2011-7-2 07:58

第4代在哪儿啊？

就算以后有，那时候CPU不知道又强到什么程度了

orz2009 · 发表于 2011-7-2 08:05

画图啊。。。

我也会的

killpmp · 发表于 2011-7-2 08:54

本帖最后由 killpmp 于 2011-7-2 08:56 编辑

是金子总会发光，是勒色再发光也不是金子
T2是有很多不足之处，所以T3才显得异常强大
但是与其说T2勒色，还不如说Android烂得不可救药更合适
事实拖累XOOM的真正凶手是Android 3.0而非Tegra2
从这点看google根本不是Apple的对手，要战胜Apple，只能期待更强的有更多操作系统设计经验的选手入局
某些人想过分夸大某一事实而掩盖更重要的事实以混淆视听，那是很不应该的

帐号		自动登录	找回密码
密码			注册

potomac 该用户已被删除	5^# 发表于 2011-7-1 19:22 \| 只看该作者提示: 作者被禁止或删除内容自动屏蔽
potomac 该用户已被删除
	回复支持反对使用道具举报显身卡

potomac 该用户已被删除	10^# 发表于 2011-7-1 20:03 \| 只看该作者提示: 作者被禁止或删除内容自动屏蔽
potomac 该用户已被删除
	回复支持反对使用道具举报显身卡