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Written by David Ramsey   
Sunday, 13 November 2011
Table of Contents: Page Index
Intel DX79SI LGA2011 Desktop Motherboard
The Intel X79 Express Chipset
Closer Look: Intel DX79SI Motherboard
DX79SI Detailed Features
Motherboard Testing Methodology
AIDA64 Extreme Edition Tests
PCMark Vantage Tests
CINEBENCH R11.5 Benchmarks
CPU-Dependent 3D Gaming
PassMark PerformanceTest
Media Encoding Benchmarks
SPECviewperf 11 Tests
SPECapc Lightwave
Blender and POV-Ray
X79 Express Motherboard Final Thoughts
Intel DX79SI Conclusion

Handbrake Media Encoding

It's a truism that consumer-level computer performance reached the "fast enough" point years ago, where increases in system performance don't make things any faster for most people. Web browsing, e-mail, word processing, and even most games won't benefit dramatically from a super-fast CPU. There are some exceptions, though, and media encoding is one of them: transcoding video, especially high-definition video, can bring the strongest system to its knees. Fortunately, media transcoding is one of those things that (depending on the design of the code, of course) that scales really well with both clock speed and the number of cores, so the more you have of both, the better your results will be.

The free and open-source Handbrake 0.95 video transcoder is an example of a program that makes full use of the computational resources available. For this test I used Handbrake 0.95 to transcode a standard-definition episode of Family Guy to the "iPhone & iPod Touch" presets, and recorded the total time (in seconds) it took to transcode the video.

handbrake.png

Handbrake's encoding code seems to benefit from both number of cores as well as core efficiency, but there's still less difference here between the Intel CPUs than I'd expect. The Sandy Bridge Extreme CPU is 16% faster than the 2600K and only 13% faster than the 980X.

x264 HD Benchmark 3.19

Tech ARP's x264 HD Benchmark comprises the Avisynth video scripting engine, an x264 encoder, a sample 720P video file, and a script file that actually runs the benchmark. The script invokes four two-pass encoding runs and reports the average frames per second encoded as a result. The script file is a simple batch file, so you could edit the encoding parameters if you were interested, although your results wouldn't then be comparable to others.

x64hd_run1_run2.png

The first two runs see the AMD Bulldozer FX-8150 matching the performance of the 2600K, but both are dominated by the six core CPUs. The 3960X beats the 2600K by 41% in both runs, reasonably close to the 50% difference one would expect if the performance scaled linearly with the number of cores.

x64hd_run3_run4.png

Oddly, the 2600K drop far behind the other processors in this part of the benchmark, and the two six-core CPUs leap far ahead. The 3960X frames-per-second are double those of the 2600K.



 

Comments 

 
# RE: Apple iPad Multi-Touch Tablet Device LaunchedDevan 2010-02-17 09:02
where is the pictures?
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# RE: Intel DX79SI LGA2011 Desktop MotherboardWade Eilrich 2011-11-14 22:02
I've not been impressed with an Intel motherboard for a long time, but this one - especially paired with the new, screaming fast Sandy Bridge CPU, might change my mind once they release a stable BIOS. I'm a little disappointed that they removed Smart Response because I think many enthusiasts will want to boot from an SSD in this system. The upcoming i7-3820 (Q1 2012) is an interesting alternative, if the price point is reasonable. As always, your reviews are an excellent read David (although I do miss some of the tongue-in-cheek humor) :)
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# RE: RE: Intel DX79SI LGA2011 Desktop MotherboardDavid Ramsey 2011-11-17 10:04
Wade, you can boot from an SSD with no problem; it's using an SSD as a cache for a hard drive that's no longer directly supported. Third parties like ASUS have added their own SSD caching features to their X79 motherboards. Dunno why Intel dropped the feature...
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# light and confortableCHARLEYAM 2011-11-15 11:20
looks like you guys have out done yourselfs. I know alot of people (gamers) have overlooked you boards in the past but you always had high end boards I guess you never had to advertise people who know got them.. this is one sweet mb and at my next build this would be the building block I would start with
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# very good but not a huge leapReSeRe 2011-11-17 05:59
1st, nice review once again.

i must say in the beginning that i-ll be a little biased, cause i do own an 990X.
So, it looks that Intel achieve full maturity with this type of processors (let-s call it I7 class). And not very distant from the end. Which may be not a good part for buyers. but,
on the other hand this means reiability, trust, and so on. Now, the efforts go in MB/3rd party enhancements.
good.
and , i think if today you own an 980X/2600k or around, you can stay relaxed 2 or more years. Also, I DO HOPE its a good time for AMD to catch the train. I hate/worry about monopoly. and the new amd CPU give us a little hope. good.
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# No comparison!Teemu Milto 2011-11-28 08:28
You just reviewed the processors, and possibly even were compromized by your different GPU and memory set-ups. No comparison of motherboards means that nothing can be said about the performance of Intel DX79SI LGA2011 Desktop Motherboard .
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# RE: No comparison!David Ramsey 2011-11-28 09:00
I used the same hard drive, GPU and memory for each motherboard, with the exception of the DDR3-1866 RAM used on the AMD system. You'd know this if you'd bothered to read the "Motherboard Testing Methodology" section. The stated purpose of these tests was to see how Intel's latest platform compares against the best existing AMD and Intel platforms.

If you want to see how the Intel DX79SI compares against other X79 Express motherboards, read my "X79 Express Motherboard Performance Comparison." But do try to pay attention this time.
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# re re no comparisonbigguy 2012-03-17 04:17
Haha good for you David for calling someone who merely skims your site/reviews and has the nerve to start trying to undermine it all. There's meds for this kind of thing....
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# Account managerGeorges Al tawil 2012-11-19 03:27
David i Have a question does the Mother board DX79SI support Lynux sound card " LYNX 192Hz " ??

your prompt return will be highly appriciated .
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# RE: Account managerDavid Ramsey 2012-11-19 07:20
I have no idea. I've never heard of that sound card and (obviously) don't have one to test.

That said, there's nothing magic or different about the X79's PCI-E slots, nor is software on that level any different, so if the card works in the PCI-E slots of any other motherboard, it should work fine in this board.
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