Intel Core Duo: AOpen i975Xa-YDG to the Rescue
by Gary Key on May 4, 2006 8:00 AM EST- Posted in
- Motherboards
Video Encoding Performance
A traditional weak spot of the current Intel mobile processor offerings has been in the media encoding area when compared to AMD. Considering the main optimizations for the Core Duo centered on media encoding performance, we were very interested in seeing how this platform compared to current AMD lineups. We are utilizing an updated video encoding test suite for this article that includes AnyDVD, Nero Recode 2, Videora, Windows Media Encoder 9, and DivX 6.2.1. One video application missing is QuickTime PRO 7; we utilized it extensively on both test platforms but we ran into issues transcoding our sample video files during the overclocking testing. This is an issue we are currently addressing and hopefully we will be able to post results shortly.Our first test is quite easy - we take our original The Sum of All Fears DVD and use AnyDVD Ripper to copy the full DVD to the hard drive without compression, thus providing an almost exact duplicate of the DVD. We then fired up Nero Recode 2, selected our Sum of All Fears copy on the hard drive, and performed a shrink operation to allow the entire movie along with extras to fit on a single 4.5GB DVD disc. We left all options on their defaults except we checked off the advanced analysis option. The scores reported include the full encoding process and are represented in minutes, with lower numbers indicating better performance.
The results are very interesting as we did not expect the Intel system to perform this well. We were so surprised that we ran the test several times and verified our settings before accepting the test results. We guess the last few years of NetBurst results have tainted our cognitive abilities.
Our next test has us extracting Chapter 9 of our movie which will be used extensively in the rest of our benchmarks. After extraction we utilize AutoGK version 2.27 and DivX 6.2.1 to convert our .VOB file into a more accessible .AVI file. We utilize our standard settings and then let this program combination do its magic. We are reporting the numbers in two charts with frames per second and the time in minutes/seconds to complete the conversion.
Unlike our Nero Recode 2 test results, this exercise has both systems performing equally. It either means this software is not optimized for a particular platform or the process is equally demanding on both systems.
Next on the list is the Windows Media Encoder 9 test that will convert our newly created .AVI file into a plasma screen pleasing WMV-HD format. We ensured our quality settings were set to High Definition. The values reported are in minutes/seconds for the conversion time, with lower numbers being better.
Once again, the Core Duo and the Opteron are close in the benchmark scores with the Intel platform performing up to 6% better in this benchmark. While both platforms are extremely competitive in this benchmark, the AOpen board clearly has the advantage in our scores.
Our final video tests utilize the Videora Converter products to perform a conversion of our Sum of All Fears Chapter 9 .VOB into the proper video format that our Xbox360, iPod, and Sony Playstation Portable can understand. We utilized the default settings for each program and have reported the results in minutes/seconds with the lower numbers being better. The final results show the transcoding process times for converting our standard 327MB file into a 43.2MB file for iPod, 111MB file for Xbox 360, and a 66MB file for PSP.
In these particular benchmarks both platforms are basically even with a minimal advantage going to the Intel platform in the more demanding Xbox 360 conversion. These results continue the pattern of the Intel Core Duo platform not being at a distinct disadvantage when compared to the current AMD offerings and actually having an advantage in most instances. Intel users can begin to rejoice now - just no dancing in the streets until the next product release please.
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SexyK - Thursday, May 4, 2006 - link
There are many, many differences between the Yonah and Conroe designs that should lead to a significantly higher IPC for Conroe. Macro-ops fusion, memory disambiguation, 4-issue core, etc, etc... Here's a good overview of some of the changes as compared to the X2s and older Intel chips: http://www.anandtech.com/cpuchipsets/showdoc.aspx?...">http://www.anandtech.com/cpuchipsets/showdoc.aspx?...SexyK - Thursday, May 4, 2006 - link
I think these tests are the nail in the coffin for those out there still saying the Conroe benchmarks were 'fixed' by Intel. Clock for clock, Yonah is already beating X2 on a regular basis, sometimes by large margins. Based on those results, plus all the m-arch improvements made in Conroe/Woodcrest/Merom, I'd say there's little doubt that we're in store for a 20-40% performance lead from Intel in the near future, depending on the final outcome of the AM2 lauch...LEKO - Thursday, May 4, 2006 - link
I'm really impressed by the Core Duo performance... But this CPU lacks 64bit support. I know that if you upgrade on a yearly basis, it'S not an issue. But when you want something that will be capable for years, I think that the 64bit capable Athlon X2 and Dual-Core Opteron becomes better alternatives.I think that AMD will get a kick in the butt when Intel will launch their Next-Gen 64bit Desktop CPU! I hope AMD have very good hidden cards.
Gary Key - Thursday, May 4, 2006 - link
This issue will be addressed with Conroe/Merom. However, given the almost dearth amount of 64-bit applications on the desktop in the WinTel world at this time we still feel like it is a safe purchase for the next couple of years, or wait for Intel's new products this summer. Of course, AMD's products are still top notch with the X2 series offering a truly long term solution (at least in CPU years) if you are buying today.
IntelUser2000 - Thursday, May 4, 2006 - link
I don't know. You are comparing DDR2-667 at 3-3-3-8 timings with 975X compared to DDR2-533 on 4-4-4-12 on this Core Duo review using 945GM: http://www.anandtech.com/cpuchipsets/showdoc.aspx?...">http://www.anandtech.com/cpuchipsets/showdoc.aspx?...
Not only being at DDR2-667 being synchronous with FSB give advantage, the lower latency will make enough difference in both. There are other possibility like updated BIOS and mature motherboards.
This is the best comparison benchmark I have seen for Core Duo vs. other CPUs(whether Opteron, X2 or Pentium D's), but 975X beating 945GM because its a newer chipset makes no sense.
There is also a possibility that 945GM chipset used in laptops is performance wise lowered compared to the 945GT(which is 945G just Core Duo support), to save power, and if Asus N4L-VM is using 945GM, it MIGHT be the reason it performs lower.
Viditor - Thursday, May 4, 2006 - link
Agreed...though I should say that while Merom is inspired by Yonah, they really are quite different. Will this mobo also work for Merom?
Gary Key - Thursday, May 4, 2006 - link
Agreed, was not trying to address the core architecture differences, just stating 64-bit support is on the way for Yonah's successors. :) We hear rumors the board can work with Merom, no official statements from AOpen or Intel yet. We will update the article once we have a statement or if Crestline will be the official requirement for Merom. At one time Merom was going to drop into the 945GM but who knows about i975X support as the directions seem to change every Tuesday. We are still waiting on our i965 samples to ship in order to showcase "eornoc". ;-)
Viditor - Thursday, May 4, 2006 - link
Thanks Gary! I will be very interested in the update once you get confirmation. I'm still a bit murky on the platforms for Merom...Cheers!
stmok - Thursday, May 4, 2006 - link
From what I hear (Engineers in AOpen R&D as well as enthusiasts who have gotten samples), they have tested this mobo with Merom. You need a BIOS update. Otherwise, it will NOT boot to the operating system!I'm still wondering if it supports Virtualization Technology. This is what I'm really interested in. :)
Questar - Thursday, May 4, 2006 - link
You plan on running apps that require greater than 4GB of ram in the next couple years?Didn't think so.