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.
Facebook
Twitter
RSS
200 Comments
View All Comments
Anand Lal Shimpi - Friday, August 27, 2010 - link
You're correct, I didn't feel a dual vs. quad-core comparison was fair which is why I focused on the 760. I'll clear up the text though :)Take care,
Anand
Anand Lal Shimpi - Friday, August 27, 2010 - link
fixed :)mastrdrver - Friday, August 27, 2010 - link
If we go with what Anand has said and use the roadmap to guess pricing I just have one question then:Why in the world would anyone spend ~$300 for the 2500 and ~$500 on the 2600 then use the on chip gpu with no plans on some kind of discrete?
If the difference between a $600 HP is Llano and Sandy Bridge, Llano has a possibly huge advantage since I think its safe to assume that the gpu side will start at 5450 performance.
Its like Intel would be trying to tell you that SD Xbox 360 is better than HD Xbox 360 (Llano). Are you serious? If Llano can hit a pc at that price point and have a full shader count, Sandy Bridge is dead in the consumer market.
I know that's a lot of ifs and time between here and then but Intel doing what it has always done with graphics (suck) is going to haunt it. I think Intel let the door wide open and its head between it and the frame. All AMD has to do is shut it.
DanNeely - Friday, August 27, 2010 - link
There are people whose workloads are heavily CPU bound but who don't need a heavy duty GPU. Higher end servers and a lot of workstations fall into this category.Beyond that unless Intel made a GPUless die or deliberately disabled the onboard GPU there's no reason not to include it. While we'll have to wait until Intel shows off labeled die shots I doubt that the GPU is a large enough chunk to justify the engineering effort just to save a little on the manufacturing side.
mastrdrver - Saturday, August 28, 2010 - link
You are correct but my point was meant to be on "Best Buy" systems and not server or workstations. Sorry if I didn't get that clear.On the server front this will have to go up against Bulldozer which is an entirely different topic.
While it would be foolish for Intel to make a gpuless die since integration with the cpu side is inevitable, Larabee or what ever better be good. Then there is the driver thing. That Dragon Age Origin picture sure doesn't look right. For drivers that still have work to do, that picture looks exactly like the one from when Clarkdale was released. I'd be a little surprised if much driver work is left if those two pictures are actually different.
arh2o - Friday, August 27, 2010 - link
How much will these new 1155 motherboard prices be? Will they be in the same price range as the current 1156 motherboards?Rajinder Gill - Saturday, August 28, 2010 - link
I'd imagine the P67 boards will be priced between $150~$200.odin607 - Friday, August 27, 2010 - link
What about temps =(cmdrdredd - Friday, August 27, 2010 - link
I'm never buying an Intel CPU or Motherboard ever again. This is one area that made them what they are today. The ability to take a mid range part and clock it up is what made the Core 2 series such a success with gamers and other performance enthusiasts. Not all of the success is attributed to overclocking, but a good bit of the popularity came from a $200 CPU being able to clock up to levels that the $700+ cpus hit. Now, if the unlocked parts can hit big overclocks and aren't overpriced then maybe it'll work out. However, it's all to easy for Intel to give us the finger and price a $200 CPU at $600 because it's unlocked and say "tough crap, if you want to overclock then pay up!". I am hopeful it doesn't come to this.Anyway, quads are old news IMO...I'm looking at 6core for my next one.
JumpingJack - Saturday, August 28, 2010 - link
"but a good bit of the popularity came from a $200 CPU being able to clock up" ...Reading the preview, it looks like the 2500K may fit this description.
From the articles:
"...and the 2500K will replace the i5 760/655K ($205 - $216). ..."
Even the 875K, when it launched, wasn't as you claim... it actually came in 200 bucks cheaper than the 870.
http://techreport.com/articles.x/18988
It would seem to me that Intel has been planning this change for sometime and went out to address this....