The Sandy Bridge Preview
by Anand Lal Shimpi on August 27, 2010 2:38 PM ESTPAR2 Multithreaded Archive Recovery Performance
Par2 is an application used for reconstructing downloaded archives. It can generate parity data from a given archive and later use it to recover the archive
Chuchusoft took the source code of par2cmdline 0.4 and parallelized it using Intel’s Threading Building Blocks 2.1. The result is a version of par2cmdline that can spawn multiple threads to repair par2 archives. For this test we took a 708MB archive, corrupted nearly 60MB of it, and used the multithreaded par2cmdline to recover it. The scores reported are the repair and recover time in seconds.
Clock for clock there's very little advantage compared to Lynnfield, but compared to the i7 760 the Sandy Bridge advantage is no less than 35%.
WinRAR - Archive Creation
Our 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:
Without Hyper Threading, the Core i5 2400 equals the performance of the Core i7 880. Turn HT on, and this Sandy Bridge part that may end up costing ~$200 is nearly as fast as the $999 Core i7 980X.
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Touche - Friday, August 27, 2010 - link
And the naming...OMG!There will be i7 processors that require three (3 !!!) different sockets! Maybe even 4 when 2011 comes. Intel can't get their naming right for quite some time now, but they've outdone themselves this time.
ereavis - Monday, August 30, 2010 - link
Processor names really should mean something, even if AMD and Intel don't agree. It's annoying that I have to wikipedia a processor (or memorize a thousand processors) to know what it is. We are still getting quotes for three year old Opterons and Xeons (that we're using as desktops no less), those only add to the annoyance.What ends up happening - good for Intel bad for technology advancement - is non IT type people buying computers are buying DDR2-667 based three-year old desktop processors.
BSMonitor - Friday, August 27, 2010 - link
Ummm, but Bulldozer comes with AM3-r2... Just a sketchier way of saying new MB needed.At least this new Intel isn't trying to BS you. Significant revisions to the architecture require different pin layouts/counts... It is inevitable with processor evolution.
Touche - Friday, August 27, 2010 - link
Actually, it should be AM3 compatible:http://www.tomshardware.com/reviews/bulldozer-bobc...
Even if it's not, AM2/AM3 lasted quite some time.
"At least this new Intel isn't trying to BS you. Significant revisions to the architecture require different pin layouts/counts... It is inevitable with processor evolution."
They know in advance what they need and could design a socket to support multiple processors. And i7/i5/i3 definitely don't need different ones.
BSMonitor - Friday, August 27, 2010 - link
"Even if it's not, AM2/AM3 lasted quite some time."Not all AM2 processors were compatible with AM2+ MB or vice versa, not all AM3 processors compatible on AM2+ MB.
It's still 3 different sockets.
Marketing buddy, marketing.
By the time 1366 is replaced, it will have been on the market for 4 years.
stmok - Saturday, August 28, 2010 - link
Eh, no its not. Bulldozer does NOT work with non-AM3+ mobosAMD engineers made a decision not to make it backward compatible for three reasons.
(1) No one but enthusiasts upgrade their CPUs. People in the real world upgrade their whole computer.
(2) Bulldozer introduces new features that won't work with existing Socket AM3 mobos. (Isn't it bloody obvious when they have to introduce a new socket specification?)
(3) It would cost more money and delays if they were to make a backward compatible version of Bulldozer.
As a result, they made a compromise:
You can take your existing AM3 CPU to AM3+ mobos, while you wait for Bulldozer to arrive. BUT, you can NOT upgrade your existing AM3 based system to Bulldozer.
Simply put...
AM3+ CPU and AM3+ mobo = OK
AM3 CPU and AM3+ mobo = OK
AM3+ CPU and AM3 mobo = Sorry. No.
So it doesn't matter if AMD "Bulldozer" or Intel "Sandy Bridge". You will need a new mobo.
Ard - Friday, August 27, 2010 - link
AMD seriously has their work cut out for them with Bulldozer. The lowest end Sandy Bridge processor absolutely trounced the competition. It's insane what Intel is pulling off here, especially in the integrated graphics arena. Really makes me hope Larrabee comes back as a discrete product in the next few years.dgz - Saturday, August 28, 2010 - link
poor kid, you don't realize 2400 is not nearly lowest end.Finally - Sunday, August 29, 2010 - link
Doesn't that make him a "(filthy) rich kid"?Quodlibet - Friday, August 27, 2010 - link
- based on the shown roadmap, the replacement for the i5 760 is actually the i5 2500(K).- i7 will have even better performance with 8 MB L3 Cache and higher graphics turbo. So there is even more performance potential in the SandyBridge die that Intel could unlock for lower SKUs if needed.