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标题: 车尾灯都看不到了，Xoom 的 GLbenchmark 2.0 完败于 ipad 2，要买 Xoom 的到此收尸 [打印本页]

作者: Edison 时间: 2011-3-13 12:22
标题: 车尾灯都看不到了，Xoom 的 GLbenchmark 2.0 完败于 ipad 2，要买 Xoom 的到此收尸
http://www.anandtech.com/show/42 ... x543mp2-benchmarked

Apple iPad 2 GPU Performance **lored: PowerVR SGX543MP2 Benchmarkedby [url=]Anand Lal Shimpi[/url] on 3/12/2011 3:04:00 PM
Posted in [url=]Smartphones[/url] , [url=]Tablet[/url] , [url=]Apple[/url] , [url=]iPad 2[/url] , [url=]iPad[/url] , [url=]GLBenchmark[/url]

Earlier this morning we published our first impressions on Apple's iPad 2, including analysis on camera quality and a dive into the architecture behind Apple's A5 SoC. Our SoC investigation mostly focused on CPU performance, which we found to be a healthy 50% faster than the A4 in the original iPad - at least in web browsing. We were able to exceed Apple's claim of up to 2x performance increase in some synthetic tests, but even a 50% increase in javascript and web page loading performance isn't anything to be upset about. We briefly touched on the GPU: Imagination Technologies' PowerVR SGX 543MP2. Here Apple is promising up to a 9x increase in performance, but it's something we wanted to investigate.

Read on to see just how fast the new PowerVR SGX 543MP2 really is.

Page 1Earlier this morning we published our first impressions on Apple's iPad 2, including analysis on camera quality and a dive into the architecture behind Apple's A5 SoC. Our SoC investigation mostly focused on CPU performance, which we found to be a healthy 50% faster than the A4 in the original iPad - at least in web browsing. We were able to exceed Apple's claim of up to 2x performance increase in some synthetic tests, but even a 50% increase in javascript and web page loading performance isn't anything to be upset about. We briefly touched on the GPU: Imagination Technologies' PowerVR SGX 543MP2. Here Apple is promising up to a 9x increase in performance, but it's something we wanted to investigate.

Architecturally the 543MP2 has more than twice the compute horsepower of the SGX 535 used in Apple's A4. Each shader pipeline can execute twice the number of instructions per clock as the SGX 535, and then there are four times as many pipes in an SGX 543MP2 as there are in a 535. There are also efficiency improvements as well. Hidden surface removal works at twice the rate in the 543MP2 as it did in the 535. There's also a big boost in texture filtering performance as you'll see below.
As always we turn to GLBenchmark 2.0, a benchmark crafted by a bunch of developers who either have or had **erience doing development work for some of the big dev houses in the industry. We'll start with some of the synthetics.
Over the course of PC gaming evolution we noticed a significant increase in geometry complexity. We'll likely see a similar evolution with games in the ultra mobile space, and as a result this next round of ultra mobile GPUs will seriously ramp up geometry performance.
Here we look at two different geometry tests amounting to the (almost) best and worst case triangle throughput measured by GLBenchmark 2.0. First we have the best case scenario - a textured triangle:

The original iPad could manage 8.7 million triangles per second in this test. The iPad 2? 29 million. An increase of over 3x. Developers with existing titles on the iPad could conceivably triple geometry complexity with no impact on performance on the iPad 2.
Now for the more complex case - a fragment lit triangle test:

The performance gap widens. While the PowerVR SGX 535 in the A4 could barely break 4 million triangles per second in this test, the PowerVR SGX 543MP2 in the A5 manages just under 20 million. There's just no competition here.
I mentioned an improvement in texturing performance earlier. The GLBenchmark texture fetch test puts numbers to that statement:

We're talking about nearly a 5x increase in texture fetch performance. This has to be due to more than an increase in the amount of texturing hardware. An improvement in throughput? Increase in memory bandwidth? It's tough to say without knowing more at this point.

Apple iPad vs. iPad 2
	Apple iPad (PowerVR SGX 535)	Apple iPad 2 (PowerVR SGX 543MP2)
Array test - uniform array access	3412.4 kVertex/s	3864.0 kVertex/s
Branching test - balanced	2002.2 kShaders/s	11412.4 kShaders/s
Branching test - fragment weighted	5784.3 kFragments/s	22402.6kFragments/s
Branching test - vertex weighted	3905.9 kVertex/s	3870.6 kVertex/s
Common test - balanced	1025.3 kShaders/s	4092.5 kShaders/s
Common test - fragment weighted	1603.7 kFragments/s	3708.2 kFragments/s
Common test - vertex weighted	1516.6 kVertex/s	3714.0 kVertex/s
Geometric test - balanced	1276.2 kShaders/s	6238.4 kShaders/s
Geometric test - fragment weighted	2000.6 kFragments/s	6382.0 kFragments/s
Geometric test - vertex weighted	1921.5 kVertex/s	3780.9 kVertex/s
**onential test - balanced	2013.2 kShaders/s	11758.0 kShaders/s
**onential test - fragment weighted	3632.3 kFragments/s	11151.8 kFragments/s
**onential test - vertex weighted	3118.1 kVertex/s	3634.1 kVertex/s
Fill test - texture fetch	179116.2 kTexels/s	890077.6 kTexels/s
For loop test - balanced	1295.1 kShaders/s	3719.1 kShaders/s
For loop test - fragment weighted	1777.3 kFragments/s	6182.8 kFragments/s
For loop test - vertex weighted	1418.3 kVertex/s	3813.5 kVertex/s
Triangle test - textured	8691.5 kTriangles/s	29019.9 kTriangles/s
Triangle test - textured, fragment lit	4084.9 kTriangles/s	19695.8 kTriangles/s
Triangle test - textured, vertex lit	6912.4 kTriangles/s	20907.1 kTriangles/s
Triangle test - white	9621.7 kTriangles/s	29771.1 kTriangles/s
Trigonometric test - balanced	1292.6 kShaders/s	3249.9 kShaders/s
Trigonometric test - fragment weighted	1103.9 kFragments/s	3502.5 kFragments/s
Trigonometric test - vertex weighted	1018.8 kVertex/s	3091.7 kVertex/s
Swapbuffer Speed	600	599

Enough with the synthetics - how much of an improvement does all of this yield in the actual GLBenchmark 2.0 game tests? Oh it's big.

Page 2GLBenchmark 2.0GLBenchmark 2.0—as its name implies—tests OpenGL ES 2.0 performance on compatible devices. The suite includes two long benchmarking scenarios with a demanding combination of OpenGL ES 2.0 effects - texture based and direct lighting, bump, environment, and radiance mapping, soft shadows, vertex shader based skinning, level of detail support, multi-pass deferred rendering, noise textures, and ETC1 texture compression.
GLBenchmark 2.0 is the best example of an even remotely current 3D game running on this class of hardware—and even then this is a stretch. If you want an idea of how the PowerVR SGX 543MP2 stacks up to the competition however, GLBenchmark 2.0 is probably going to be our best bet (at least until we get Epic to finally release an Unreal Engine benchmark).

Without AA, the Egypt test runs at 5.4x the frame rate of the original iPad. It's even 3.7x the speed of the Tegra 2 in the Xoom running at 1280 x 800 (granted that's an iOS vs. Android comparison as well).

With AA enabled the iPad 2 advantage grows to 7x. In a game with the complexity of the Egypt test the original iPad wouldn't be remotely playable while the iPad 2 could run it smoothly.
The Pro test is a little more reasonable, showing a 3 - 4x increase in performance compared to the original iPad:

While we weren't able to reach the 9x figure claimed by Apple (I'm not sure that you'll ever see 9x running real game code), a range of 3 - 7x in GLBenchmark 2.0 is more reasonable. In practice I'd **ect something less than 5x but that's nothing to complain about. We'll be doing power analysis over the weekend so **ect more detail in our full review.
Putting the PowerVR SGX 543MP2 to Use: Infinity BladeAs we pointed out in our iPad 2 Preview, at least one developer already picked up on the amount of extra GPU horsepower in the new iPad 2. Epic put out an updated version of Infinity Blade with support for the iPad 2. Run it on an iPad and you'll get the same old Infinity Blade, but run it on an iPad 2 and you'll get more detail, higher resolution textures and anti-aliasing.
Remember that iPad and iPhone devices are more closed than your PC. There's no adjusting detail settings or resolution, so the target frame rate is usually what's fixed. Developers are simply able to deliver a better looking **erience at roughly the same frame rate with upgraded hardware. In the case of Infinity Blade, load times are reduced thanks to the Cortex A9 CPU cores and there is some improvement in frame rate but the biggest impact comes from the improved visuals.
Below is the comparison beween Infinity Blade on the iPad and iPad 2 we ran in this morning's preview:

Mouse over to see Infinity Blade on the iPad 2

The gallery below has a bunch of side by side shots showing the improvements made to Infinity Blade for the iPad 2 vs. what you get when you run the game on a first generation iPad.

{gallery 984}

To Be Concluded...We're still hard at work on our full iPad 2 review. We've got no less than four units running through battery life tests right now and there's still more to talk about in the review. We'll keep you posted, thanks for reading!

作者: luckissy 时间: 2011-3-13 12:29

ipad2 价格还是很给力的 XOOM 直接悲剧吧

作者: chinkedout 时间: 2011-3-13 12:30
apple真给力~~

作者: samsunggram 时间: 2011-3-13 12:49

喜欢封闭OS的可以入手ipad2

一台平板页游都玩不了实在提不起什么兴趣，和iphone4一样，拍张照片都不能蓝牙传送

作者: Edison 时间: 2011-3-13 12:56

samsunggram 发表于 2011-3-13 12:49
喜欢封闭OS的可以入手ipad2

一台平板页游都玩不了实在提不起什么兴趣，和iphone4一样，拍张照片都不能 ...

人家是用封闭的 OS，但是 3 年时间卖了 1 亿支 iphone、1 年时间卖了 1 千万部 ipad，而且这个数字攀升的速度依然非常快。

作者: DonaldGoD 时间: 2011-3-13 12:59
E版是苹果控？标题起得这么给力。

作者: elisha 时间: 2011-3-13 13:01
本帖最后由 elisha 于 2011-3-13 13:01 编辑

T2被打回原形了，怪不得要40nm硬上T3了

作者: crazystone 时间: 2011-3-13 13:12
惨啦，以后能优化不

作者: xreal 时间: 2011-3-13 13:58
t2 out啦，t3登场。。。

作者: bnb8088 时间: 2011-3-13 14:09
苹果的整体式营销还是不错的，统一的硬件配置，平台，方便开发。至于android 太混乱了

作者: gz_easy 时间: 2011-3-13 14:10
T3提前登场，T2提前甩卖。

作者: rickerlian 时间: 2011-3-13 14:20
T2真2

作者: 66666 时间: 2011-3-13 14:59
t2平板降价就好了，干翻a5的任务只有看t3

作者: 飞鸟真 时间: 2011-3-13 15:02
那ipad2会支持flash吗？

作者: 043265 时间: 2011-3-13 15:04
苹果不但赚到了钱还赚到了一切

作者: hyj201 时间: 2011-3-13 15:04
封闭IOS按理说应该是不讨好的....但是乔布斯偏偏把一个濒死的公司就用这么个封闭IOS弄起来了还做得非常牛...............不得不承认苹果的经营成果

作者: saskey7 时间: 2011-3-13 15:12
对美国人买个ipad就像国内买个mp3
管你什么系统，能听歌就行了
再者感觉美国普通人对电脑方面挺二的

作者: 李主任 时间: 2011-3-13 15:21
差距不是很大，目测差了20条马路罢了。

作者: chemjn 时间: 2011-3-13 15:57
看了这个测评，就等港行ipad2了

作者: rickerlian 时间: 2011-3-13 17:29
我还是买xoom,但愿1888有交易

作者: blackgwt 时间: 2011-3-13 17:32
消费者是不会研究这产品背后到底是封闭还是开放，最关心的，是触摸流畅不流畅啊，看电影卡不卡，啥的，你和他们说封闭和开放，硬件神马的，吃饱了撑的

作者: SnakeLee 时间: 2011-3-13 17:39
怎么说T2发布时间也是早了点，可惜了啊

要是此时此刻有个图形加强版T2.X就好了，但是这些平板火起来完全是今年的事，无奈~

作者: fhnp 时间: 2011-3-13 17:45
果然可以称得上ipad 3GS了

作者: 66666 时间: 2011-3-13 18:02

SnakeLee 发表于 2011-3-13 17:39
怎么说T2发布时间也是早了点，可惜了啊

要是此时此刻有个图形加强版T2.X就好了，但是这些平板火起来完全 ...

8月份tegra3都上了，tegra2加强版没什么意义

作者: ifu 时间: 2011-3-13 18:05
可怜xoom才上市没几天就被ipad2赤裸裸的羞辱

作者: kyrome 时间: 2011-3-13 18:45
看来未来的iphone5游戏性能要把android系甩得老远

，CPU.GPU基本上就是半个PSP2的规格

作者: tigertank 时间: 2011-3-13 18:58
回复 Edison 的帖子

报告管理员，你发的链接被论坛屏蔽了字词，无法使用

作者: fly2sky 时间: 2011-3-13 19:34
标题: xoom的CPU和GPU性能均被ipad2秒杀啊，让老黄情何以堪
nv果然是毒药，在家用游戏机上哪家用哪家倒霉，看样子这一怪圈继续延续到平板上了

作者: apogee800 时间: 2011-3-13 19:40
手持Nexus S,LD在用iPhone4的来说一下:
1,Apple无敌,Apple威武
2,作为Android使用者,我能说的,Android唯一的优势,就是教主快挂了
3,LZ作为Pcinlife的管理层,能否反应一下,装个论坛插件,Tapatalk或者大板凳,要不干脆以Gfan或者Weiphone为榜样,直接出独立App?
4,对于那些不爽Apple封闭iOS的人,只能说,iOS的用户体验无敌,但不是用户体验盗版无敌

作者: kool 时间: 2011-3-13 19:41
这代ipad又便宜性能又强，我找不到不买的理由

作者: fly2sky 时间: 2011-3-13 19:42
Tegra2 不给力啊

作者: fly2sky 时间: 2011-3-13 19:43
Tegra2 太不给力了，nv还算做GPU出身的，连GPU都输掉了

作者: 66666 时间: 2011-3-13 19:45
tegra2发布的时候A4还没出。。。。tegra2平板机上市的时候A5连影子都看不到，A5的对手是tegra3

作者: blackgwt 时间: 2011-3-13 19:46
ARM领域，老黄还是处女

作者: 猛@将@兄 时间: 2011-3-13 19:53
LS的,处女意味着可开发余地非常大啊

作者: 043265 时间: 2011-3-13 19:59
基本放弃NV芯片的想法了

作者: sidesnow 时间: 2011-3-13 20:12
本来还YY下moto的，这下就看blackberry的咋样了

作者: fly2sky 时间: 2011-3-13 20:20
可怜的三星，订了那么多tegra2

作者: solidusmic 时间: 2011-3-13 20:20
说道性能,其实就是那样

堆积功耗而已

不是简单的性能比较能定性的

成本,价格,能耗比.

可扩展性,都要全盘考虑

否则,现在全体cpu,gpu上水冷.谁受得了.

tegra2目前看来,顶不住了.

唯一的好处就是三代不出来不行了

作者: yellowfly 时间: 2011-3-13 20:21
三代出来要下半年吧···不是说要出个高频版的T2么？

作者: ifu 时间: 2011-3-13 20:28

66666 发表于 2011-3-13 19:45
tegra2发布的时候A4还没出。。。。tegra2平板机上市的时候A5连影子都看不到，A5的对手是tegra3[sweatingbul ...

xoom才上市几天？就开始yy tegra3了

作者: archangelzry 时间: 2011-3-13 21:01
NV表现也算可以了，至少现在是进入一个新的行业，当年从最早的RIVA 128开始，也经历了TNT/TNT2/GeForce2才算搞定3DFX，当年是顶着一个傻快的名号之外什么都没有，现在至少有桌面/专业/HPC三块市场呢

至于PowerVR，这种桌面和游戏机的老牌手下败将，我不觉得他还有本钱再输一次

作者: luckissy 时间: 2011-3-13 21:02

乔布斯要老黄吃灰了 tegra吹的太厉害

作者: gz_easy 时间: 2011-3-13 21:06
2011年，iPad2 vs 众多copycats从KO Xoom开始了 (乔大爷笑。。。)

作者: archangelzry 时间: 2011-3-13 21:14

gz_easy 发表于 2011-3-13 21:06
2011年，iPad2 vs 众多copycats从KO Xoom开始了 (乔大爷笑。。。)

当年的苹果可是垄断PC市场的，不一样给IBM PC联盟收拾了，现在苹果的对手，哪一个不是自己行业内的最终胜利者？要笑，还早得很呢，9城的流动现金最后比自己的股票市值都高，照样完蛋

作者: fengpc 时间: 2011-3-13 21:44
tegra2的32bit内存带宽不够，没有集成neon模块单核浮点性能赶不上。这个不能拿apple的a5比，自家的芯片自家用，上市速度自然是最快的，系统也能最优化，用户群也摆在那。

作者: Edison 时间: 2011-3-13 22:24
A5 的 die 被扫了。

Feature	Apple A4 in the iPad	Apple A5 in the iPad 2
Die size	7.3 x 7.3 = 53.3mm2	12.1 x 10.1 = 122.2mm2
Die mark	APL0398B01	APL0498E01
Package size	14.1 x 14.1 = 198.8mm2	16.7 x 14.3 = 238.8mm2
Processor cores	1	2
Core	ARM Cortex A8	Unknown
Clock speed	1 GHz	Variable from ~ 890 MHz to 1 GHz
DRAM	256 Mbytes LP-DDR	512 Mbytes LP-DDR2

据说 A5 和三星自家的 A9 完全一样。

作者: Edison 时间: 2011-3-13 22:25
A5 的 die size 似乎比 Tegra 3 大 50% ？

作者: 苯苯小哥 时间: 2011-3-13 22:30
1024x768 PK 1280x800 分辨率摩托吃点亏

不过这也与苹果和安卓系统对游戏支持优化有关

作者: 鱼儿水中游 时间: 2011-3-13 22:37
http://news.mydrivers.com/1/188/188370.htm ，评论里说了，anandtech原文的评论不少人提出了疑问,而编辑避而不答。

作者: xboxzx 时间: 2011-3-13 23:57
http://www.ez-pad.net/android-3916-1-1.html

不解释，我觉得这次像是公关活动

作者: Edison 时间: 2011-3-14 00:24
万利达？

http://www.glbenchmark.com/phone ... p;testgroup=overall

http://www.glbenchmark.com/phone ... ;testgroup=lowlevel

作者: m0nkey 时间: 2011-3-14 00:33
别人都在追赶水果，发现要赶上快了，水果又推出新玩意儿了。。。

作者: ifu 时间: 2011-3-14 07:05

鱼儿水中游发表于 2011-3-13 22:37
http://news.mydrivers.com/1/188/188370.htm ，评论里说了，anandtech原文的评论不少人提出了疑问,而编辑避 ...

评论是专业水军刷支持率吧

作者: 66666 时间: 2011-3-14 07:13
哈哈哈，我快笑死了，A5面积都快是tegra2的三倍了，性能也就这样。

tegra2还真给力

作者: ifu 时间: 2011-3-14 07:31

66666 发表于 2011-3-14 07:13
哈哈哈，我快笑死了，A5面积都快是tegra2的三倍了，性能也就这样。

tegra2还真给力

不支持 720p以上high profile硬解,又去掉neon支持的阉货

面积小些很正常
倒是很奇怪这个低性能的阉货功耗居然还高，而且价格也不便宜，真黑

作者: kyrome 时间: 2011-3-14 09:28
tegra2没记错是40nm制程，A5还是45nm

作者: 66666 时间: 2011-3-14 09:36
本帖最后由 66666 于 2011-3-14 09:37 编辑

ifu 发表于 2011-3-14 07:31
不支持 720p以上high profile硬解,又去掉neon支持的阉货面积小些很正常
倒是很奇怪这个低性能的阉货 ...

乖乖，就不谈A5，就是苹果那个什么A4，单核A8核心面积也有53mm2.

比tegra2还大一些，论芯片面积/性能比，苹果这些玩意只能说是完全不上流的烂货

作者: kyrome 时间: 2011-3-14 11:11
本帖最后由 kyrome 于 2011-3-14 11:22 编辑

这里还有一处关于GLbenchmark 1.1与IPAD1的测试，文中说因为IPAD2有些分数太高了，GLbenchmark.com线上没有有效的记录下这些数据
Results
We recorded graphics performance improvements of up to 600 percent, and overall, the performance gain is about 500 percent – about 5 times faster than the original iPad. Also note that for some tests, the iPad 2 offered such a high performance gain that GLBenchmark wasn’t able to record it properly (these tests were dismissed).
http://www.iosnoops.com/2011/03/13/ipad-2-graphics-engine-full-benchmark-tests/

作者: kyrome 时间: 2011-3-14 11:17
本帖最后由 kyrome 于 2011-3-14 11:20 编辑

IPad2上跑Real Racing 2 HD,不错的AA效果。Real Racing 2 HD,是firemint针对IPAD2图形强化的版本。
1024X768

作者: ifu 时间: 2011-3-14 11:36

66666 发表于 2011-3-14 09:36
乖乖，就不谈A5，就是苹果那个什么A4，单核A8核心面积也有53mm2.

比tegra2还大一些，论芯片面积/性能比 ...

阉货面积小很正常，很可惜t2的性能连烂货都不如。功耗还高

作者: 骨刺 时间: 2011-3-14 11:43
T3 T800 T1000 哈哈哈哈

作者: 66666 时间: 2011-3-14 11:54
回复 ifu 的帖子

tegra2比A4差？好笑

作者: fly2sky 时间: 2011-3-14 21:31
ARM这杆旗NV扛不了，还是指望高通和德仪吧

作者: fanccc 时间: 2011-5-12 23:48
T2原来这么弱

作者: 3038922 时间: 2011-6-8 11:24
平板有啥用啊。。。。还是得背个本本上下班。

作者: 风飞天外 时间: 2011-6-9 21:22

3038922 发表于 2011-6-8 11:24
平板有啥用啊。。。。还是得背个本本上下班。

哎，被你说中了，，，我正是如此

作者: xiyibest 时间: 2011-6-10 14:40
苹果的成功，硬件没什么大的关系。软件和平台是关键。

作者: mAn!a 时间: 2011-6-10 14:49

kool 发表于 2011-3-13 19:41
这代ipad又便宜性能又强，我找不到不买的理由

请不要这么赤裸裸{titter:]

作者: 西北狼人 时间: 2011-6-10 15:20

xiyibest 发表于 2011-6-10 14:40
苹果的成功，硬件没什么大的关系。软件和平台是关键。

还是有明白人啊，硬件比来比去，意义有限，苹果的优势不是硬件，还是精美的软件，安卓开源，鱼龙混杂，不够精品。

WIN8出现以后没准安卓就要被边缘化了{sweat:]

作者: fengpc 时间: 2011-6-11 09:29
拿T2跟单核芯片比耗电是不公平的，T2的芯片面积小是40nm工艺和后端设计的功劳，但是毕竟还是双核的，处理器核心耗电还是摆在那的，三星双核的I9100续航还不是一样糟糕。T2的售价不高，就是因为是第一款双核，最终配置高产品定价也高而已

作者: troopersky 时间: 2011-6-11 09:49
我才不关心制程，管我NIAO事。
我只关心，相近价格下，哪个性能强，哪个强就买哪个。
谈什么制程啊，核心面积的都统统去吃屎，你买个机器就就TM的拆开看核心的，DAIBI!

作者: asd04122661 时间: 2011-6-11 09:57
T2主要出货量在手机上，而a5的543mp2现阶段ms根本没法用于手机，这就好像拿台式机显卡和移动设备比一样对T2很不公平。事实上目前直接拿T2做平板的厂家好像不多吧，都等着T3？

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