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标题: Core i5 vs i7 920 vs Core 2 Quad vs AMD PII完整测试强势曝光了 [打印本页]

作者: skyfx 时间: 2009-6-2 10:17
标题: Core i5 vs i7 920 vs Core 2 Quad vs AMD PII完整测试强势曝光了
Lynnfield Pricing and SpecsFrom Intel’s first disclosure of Nehalem we knew that the architecture, albeit optimized for quad-core processors, would scale up to 8 cores and down to 2:

Lynnfield, however, does not scale Nehalem’s core count in any direction. The eight-core derivative is Nehalem-EX and the two-core versions will appear later this year in 32nm mobile form. Lynnfield is a direct replacement for the quad-core Penryn CPUs that have dominated the market for the past year and a half.

Name	Manufacturing Process	Cores	Target Market	Release
Gulftown	32nm	6	High End Desktop	1H 2010
Core i7 (Bloomfield)	45nm	4	High End Desktop	Q4 2008
Lynnfield	45nm	4	Performance Desktop	Q3 2009
Clarksfield	45nm	4	High End Mobile	Q3 2009
Clarkdale	32nm	2	Mainstream Desktop	Q4 2009
Arrandale	32nm	2	Mobile	Q4 2009

A few places have published rumored Intel roadmaps for Lynnfield, indicating that three Lynnfield chips will be launched in the second half of this year:

Model Number	Clock Speed	Cores / Threads	Maximum Single Core Turbo Frequency	TDP	Price
?	2.93GHz	4 / 8	3.60GHz	95W	$562
?	2.80GHz	4 / 8	3.46GHz	95W	$284
?	2.66GHz	4 / 4	3.20GHz	95W	$196

All of the processors are quad-core Nehalems with the same cache sizes as the Core i7. The only crippled beast is the entry level Lynnfield that has Hyper Threading disabled. Note the ridiculously high turbo frequencies which are, I believe, Lynnfield’s secret weapon.

Processor	Price
Intel Core i7-940 (2.93GHz)	$562
Intel Lynnfield 2.93GHz	$562
Intel Core i7-920 (2.66GHz)	$284
Intel Lynnfield 2.80GHz	$284
Intel Lynnfield 2.66GHz	$196
Intel Core 2 Quad Q9650 (3.00GHz)	$316
Intel Core 2 Quad Q9550 (2.83GHz)	$266
Intel Core 2 Quad Q9400 (2.66GHz)	$213
Intel Core 2 Quad Q8400 (2.66GHz)	$183
Intel Core 2 Quad Q8200 (2.33GHz)	$163

With a 2.66GHz Lynnfield and a $100 P55 motherboard you now have the ability to deliver a good quad-core system at around $150 - $200 cheaper than the cheapest Core i7. Price-wise the 2.66GHz Lynnfield would be priced cheaper than today's Core 2 Quad Q9400, and as you'll see Lynnfield is clearly a faster bet.
The 2.80GHz Lynnfield should also be able to outperform the i7-920 without a problem, at a lower total system cost
as well.

The LGA-1156 Socket and New HeatsinksThe LGA-1156 socket, as its abbreviated name implies, is designed to interface with Land Grid Array packaged CPUs. The pins are located in the socket itself. To install you set the CPU in the socket, lower a clamp and then fasten the clamp in place with a lever.

The LGA-1156 Socket

I wish I could provide a more detailed motherboard pic but a quick Google search should yield good results. The entire plate that holds the CPU in place actually lifts up and to the right in the picture above. The notch at the left of the plate slides under the screw you see on the left side and the lever at the bottom secures it in place. It works pretty well in person.
The new socket requires a new cooler. The four mounting holes are closer together on the LGA-1156 socket than they are on LGA-1366 boards, but further apart than LGA-775. It’s just different enough to require a brand new cooler, or at least a new mounting bracket.

Thermaltake's SpinQ: Our first LGA-1156 cooler

Thermaltake sent over its SpinQ which will ship with an adjustable LGA-1366 bracket that can be used on both LGA-1156 and LGA-1366 motherboards. Each peg can slide back and forth to get the right positioning before locking it down, allowing the cooler to work on both platforms.

Oooh, adjustable mounting pegs

The cooler performed just fine in our tests and looks painful so try not to sit on it.

The First Lynnfield SampleLet me preface this with the usual disclaimer. Intel did *not* supply me with this chip and it is most definitely pre-production silicon, not necessarily indicative of final, shipping performance.
With that out of the way, here is Lynnfield:

Lynnfield (front) vs. Bloomfield (back)

Core i7-Bloomfield (left) vs. Lynnfield (right)

It’s a lot smaller than the LGA-1366 Core i7, but compared to current Core 2 Quads it’s actually similar in size:

LGA-775 Core 2 Duo (left) vs. LGA-1156 Lynnfield (right)

Flipping the chips over you see that Lynnfield has a much higher pad density, enabling Intel to fit 1156 pads in about the same space as it fit 775 pads just a few years prior.

Core 2 (left) vs. Lynnfield (right)

Once more, I’ve blanked out all of the caps and other markings on the chip to protect the innocent.
The initial Lynnfield samples were all clocked at 2.13GHz with HT enabled. Turbo mode was also enabled but it too was a meager 2.26GHz regardless of how many cores were active. All of this was to enable motherboard manufacturers to test compatibility and performance of their P55 without giving away Lynnfield’s true performance.
Unfortunately this is the sample I tested with. Thankfully it was healthy enough for me to overclock the BLCK to 166MHz, resulting in a 2.66GHz frequency. Turbo mode was still stuck at a 1x increase over the stock frequency, so final Lynnfield performance should be much better in single and dual threaded apps than what you’ll see here today.
The results on the coming pages show three configurations. Lynnfield running at 2.13GHz with HT enabled, 2.66GHz with HT enabled and 2.66GHz with HT disabled. The latter is going to be the closest to actual Lynnfield performance (albeit still far away thanks the sample’s crippled turbo mode), the 2.66GHz with HT enabled just shows how much we gain from HT and the 2.13GHz chip is an experiment in seeing how low Intel could drop these things and still have a competitive part.
If you thought Nehalem needed Hyper Threading to be a strong performer, you were dead wrong.
Comments About Lynnfield's ReadinessThe current rumors in the press are that Lynnfield is being held back in order to clear out excess Core 2 Quad inventory before it ships, because once this thing ships no one is going to want a Penryn anymore. Based on what I've seen, Lynnfield isn't ready just yet - it's not an artificial delay.

作者: skyfx 时间: 2009-6-2 10:20

Motherboard:	Pre-release P55 Motherboard (Intel P55) Intel DX58SO (Intel X58) Gigabyte GA-MA790FX-UD5P (AMD 790FX)
Chipset:	Intel P55 Intel X58 AMD 790FX
Chipset Drivers:	Intel 9.1.1.1012 (Intel) AMD Catalyst 8.12
Hard Disk:	Intel X25-M SSD (80GB)
Memory:	Qimonda DDR3-1066 4 x 1GB (7-7-7-20) Corsair DDR3-1333 2 x 2GB (7-7-7-20)
Video Card:	eVGA GeForce GTX 280
Video Drivers:	NVIDIA ForceWare 180.43 (Vista64) NVIDIA ForceWare 178.24 (Vista32)
Desktop Resolution:	1920 x 1200
OS:	Windows Vista Ultimate 32-bit (for SYSMark) Windows Vista Ultimate 64-bit

SYSMark 2007 Performance.

Adobe Photoshop CS4 Performance

DivX 8.5.3 with Xmpeg 5.0.3Our DivX test is the same DivX / XMpeg 5.03 test we've run for the past few years now, the 1080p source file is encoded using the unconstrained DivX profile, quality/performance is set balanced at 5 and enhanced multithreading is enabled:

Once more, we see very little impact from Hyper Threading; the entry level Lynnfield may not be as bad as you'd think. On top of that, the crippled Lynnfield is less than 4% slower than the Core i7-920. Enable its aggressive turbo mode and I believe we'll have a chip that can actually beat, even if only slightly, the Core i7-920.
x264 HD Video Encoding PerformanceGraysky's x264 HD test uses the publicly available x264 codec (open source alternative to H.264) to encode a 4Mbps 720p MPEG-2 source. The focus here is on quality rather than speed, thus the benchmark uses a 2-pass encode and reports the average frame rate in each pass.

The x264 encode test shows one application where Hyper Threading is important. A 2.13GHz Lynnfield with HT enabled is faster than a 2.66GHz Lynnfield with HT disabled, unfortunately the former isn't on the roadmap and the latter is what we're getting.
Without HT enabled the $196 Lynnfield 2.66GHz core is faster than every non-EE Penryn Core 2 Quad as well as AMD's Phenom II X4 955 (in the second pass of the test). The i7-920 is significantly faster thanks to having HT enabled; and now we have the perfect reason for Intel disabling HT on the "low end" Lynnfield.

Windows Media Encoder 9 x64 Advanced ProfileIn order to be codec agnostic we've got a Windows Media Encoder benchmark looking at the same sort of thing we've been doing in the DivX and x264 tests, but using WME instead.

Tests that don't scale well with HT enabled, once again, show no performance difference between a 2.66GHz Lynnfield and a 2.66GHz Bloomfield.
3dsmax 9 - SPECapc 3dsmax CPU Rendering TestToday's desktop processors are more than fast enough to do professional level 3D rendering at home. To look at performance under 3dsmax we ran the SPECapc 3dsmax 8 benchmark (only the CPU rendering tests) under 3dsmax 9 SP1. The results reported are the rendering composite scores:

There are three key takeaway points here.
1) Hyper Threading allows the i7-920 to outperform the entry level Lynnfield by nearly 18%.
2) With HT disabled, the $196 Lynnfield is faster than the $316 Core 2 Quad Q9650. It's a true replacement for Penryn in the lineup.
3) Intel could release an even slower Lynnfield and, by enabling HT, offer a chip faster than all other Penryn and Phenom II based processors in the market.

Cinebench R10Created by the Cinema 4D folks we have Cinebench, a popular 3D rendering benchmark that gives us both single and multi-threaded 3D rendering results.

The single threaded Cinebench test shows us just how powerful the Nehalem core is. Remember, we're looking at single-core performance here.
Without an aggressive turbo mode, the 2.66GHz Lynnfield sample is faster than a 3.0GHz Penryn. Even at 2.13GHz Lynnfield is able to perform like a 2.5GHz Penryn. This is a very flexible core.
These results also give you an indication of exactly how strong the dual-core Nehalem derivatives will be in notebooks late this year and into 2010.

Crank up the thread count and feel the frustration brew. The entry level Lynnfield won't have Hyper Threading enabled, and thus it'll only outperform the Phenom II 955 by 3.4%. Had Intel enabled the HT switch, Lynnfield would not only be 16% faster than AMD's best but it would also be only 5% slower than the i7-920.
POV-Ray 3.73 beta 23 Ray Tracing PerformancePOV-Ray is a popular, open-source raytracing application that also doubles as a great tool to measure CPU floating point performance.
I ran the SMP benchmark in beta 23 of POV-Ray 3.73. The numbers reported are the final score in pixels per second.

We see a similar story in POV-Ray.

Microsoft Excel 2007Excel can be a very powerful mathematical tool. In this benchmark we're running a Monte Carlo simulation on a very large spreadsheet of stock pricing data.

In highly threaded workloads the HT disabled Lynnfield is faster than Penryn at the same price, but still slower than the fastest quad-core Penryn CPUs.
Sorenson Squeeze: FLV CreationAnother video related benchmark, we're using Sorenson Squeeze to convert regular videos into Flash videos for use on websites.

Lynnfield, meet Phenom II, you guys perform alike.
WinRAR - Archive CreationOur WinRAR test simply takes 300MB of files and compresses them into a single RAR archive using the application's default settings. We're not doing anything exotic here, just looking at the impact of CPU performance on creating an archive:

Fallout 3 Game PerformanceBethesda’s latest game uses an updated version of the Gamebryo engine (Oblivion). This benchmark takes place immediately outside Vault 101. The character walks away from the vault through the Springvale ruins. The benchmark is measured manually using FRAPS.

I would caution you against drawing any conclusions based on the gaming performance data here. Fallout 3 isn't heavily threaded and thus would probably exploit the shipping Lynnfield's turbo modes quite well. I would be surprised if Lynnfield didn't perform in the top three once it ships.
FarCry 2 Multithreaded Game PerformanceFarCry 2 ships with the most impressive benchmark tool we’ve ever seen in a PC game. Part of this is due to the fact that Ubisoft actually tapped a number of hardware sites (AnandTech included) from around the world to aid in the planning for the benchmark.
For our purposes we ran the CPU benchmark included in the latest patch:

Even without a fully functional turbo mode, Lynnfield does quite well under Far Cry 2.
Crysis Warhead

作者: alonso6 时间: 2009-6-2 10:37
沙发,学习了

作者: eeieei 时间: 2009-6-2 10:48
风扇好吊，为了这风扇就得买一块

作者: bombsos 时间: 2009-6-2 10:52
看起来I5很强大的说

作者: the_god_of_pig 时间: 2009-6-2 11:18
Mars

作者: jiangpeng6 时间: 2009-6-2 11:25
散热器是什么品牌的
样子好拉风

作者: hotuser 时间: 2009-6-2 11:25
那风扇的扣具真是。。。。

作者: 贼拉快 时间: 2009-6-2 11:31

散热器是什么品牌的
样子好拉风
jiangpeng6 发表于 2009-6-2 11:25

TT的滚筒洗衣机

作者: bbsd 时间: 2009-6-2 11:39
提示: 作者被禁止或删除内容自动屏蔽

作者: my6218311 时间: 2009-6-2 11:43
我阴文不好，召唤8级高人全文翻译一下

作者: skyfx 时间: 2009-6-2 11:53

我阴文不好，召唤8级高人全文翻译一下
my6218311 发表于 2009-6-2 11:43

看看图片就知道结果了，何必看字

作者: bobow 时间: 2009-6-2 11:56
进来了解下情况

作者: b22sun 时间: 2009-6-2 11:57
超上去和I7差不多了阿

作者: 治病救人 时间: 2009-6-2 12:04
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作者: ai363058240 时间: 2009-6-2 12:09
顶以下················

作者: svgame 时间: 2009-6-2 12:33
P55应该比X58便宜

作者: gxiaok 时间: 2009-6-2 14:02
进来学习的.看来都不错

作者: 慕容小白 时间: 2009-6-2 14:16
TNND 为了TT的散热，我一定要买个u~

作者: satori 时间: 2009-6-2 14:19
散热器样子好拉风

作者: tczm0205 时间: 2009-6-2 18:16
看完感觉现在I7买得挺值的

作者: kof2003 时间: 2009-6-2 20:11
总算AMD 可以拿出性能不错的处理器了。恭喜一下

作者: haojuegn125 时间: 2009-6-2 20:13
帮顶.......

作者: 90534 时间: 2009-6-2 20:32
tt真是急性子~~~

作者: Yao_water 时间: 2009-6-2 20:46
看P55价格能不能比X58便宜……不然2.8G的I5和I7 920一样价格，2.6的又阉割了一些功能

作者: GZeasy.cn 时间: 2009-6-2 20:57
明年32NM不知道会如何

作者: itany 时间: 2009-6-2 21:05

看P55价格能不能比X58便宜……不然2.8G的I5和I7 920一样价格，2.6的又阉割了一些功能
Yao_water 发表于 2009-6-2 20:46

为什么？
就凭这个飞机场，能买的上价格么？

作者: tenzerotwo 时间: 2009-6-2 21:51
好YY的散热器

作者: 排骨饭 时间: 2009-6-2 21:54
那个TT滚筒是Lynnfield原配散热器吗？

作者: deepabyss 时间: 2009-6-2 22:18
楼上好搞笑

作者: 野生菠菜 时间: 2009-6-2 22:32
AMD要努力了啊，没竞争的社会真可怕

作者: 爱离心 时间: 2009-6-3 01:17
那个TT的洗衣机真不错。。。

作者: superray 时间: 2009-6-3 01:24
I5到底阉了啥？

作者: superray 时间: 2009-6-3 01:33
查了一下，i5只支持双筒，QPI换成了DMI
好像没了

作者: caogang 时间: 2009-6-3 11:08
看到大家都说顶到正式，虽然不知道什么意思，但是为了显示自己有文化，顺便跟国际接规，我也顶一下

作者: ai363058240 时间: 2009-6-3 11:26
没什么好比的价格差了一大截

作者: larrywest 时间: 2009-6-11 08:39
基本上还是I7领先啊，就看主板差价多少了

作者: shuhq 时间: 2009-6-11 08:52
两者皆可抛

作者: sinoyster 时间: 2009-6-11 08:59
拜amd所赐，intel的 ix终于降价了

作者: sky1976 时间: 2009-6-11 09:11
散热器怎么这么像传说中的血滴子？

作者: itany 时间: 2009-6-11 14:14

Lynnfield的缓存有改动么？L123分别多大？
Diger 发表于 2009-6-11 09:48

木有改动，都是一样的

作者: sentand 时间: 2009-7-20 00:15
散热器是亮点……

作者: monsterrr 时间: 2009-7-20 02:38
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