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Reviews - Featured Reviews: Memory
Written by David Ramsey   
Monday, 12 December 2011
Table of Contents: Page Index
Corsair Vengeance LP 16GB DDR3-1600
Closer Look: Vengeance LP DDR3-1600
Testing and Results
Synthetic Tests
Application Tests
Final Thoughts and Conclusion

CINEBENCH 11.5 Multi-Core Rendering Test

Maxon CINEBENCH is a real-world test suite that assesses the computer's performance capabilities. CINEBENCH is based on Maxon's award-winning animation software, Cinema 4D, which is used extensively by studios and production houses worldwide for 3D content creation. Maxon software has been used in blockbuster movies such as Spider-Man, Star Wars, The Chronicles of Narnia, and many more. CINEBENCH Release 11.5 includes the ability to more accurately test the industry's latest hardware, including systems with up to 64 processor threads, and the testing environment better reflects the expectations of today's production demands. For this test I ran the multi-core rendering test, which resulted in 12 threads rendering the test scene. The CINEBENCH score is a dimensionless number that's only useful for comparison to other CINEBENCH results.

CINEBENCH.png

Here we see results that will be mirrored in the remaining two application benchmarks...virtually no difference in performance between the various quad-channel memory kits.

Blender/Icetest

Blender is an open-source, free content creation suite of 3D modeling, rendering, and animation capabilities. Originally released in 2002, it's available in versions for Mac OS X, Windows, Linux, and several Unix distributions. It supports rigid and soft-body objects and can handle the draping and animation of cloth, as well as the rendering and animation of smoke, water, and general particle handling.

Our Blender test renders multiple frames of an animation of a rotating chunk of ice, with translucency and reflections. Rendering of this model uses ray-tracing algorithms and the program reports the rendering time for each of the animation's 25 frames. The results are a summation of the rendering times for all frames and the lower the score, the better.

blender.png

Memory speed makes little difference in this test. Oddly, though, the generic DDR3-1333 memory posts a better score than the Corsair 1600MHz memory, and the Kingston HyperX memory posts a better score at the lower 1866MHz speed. Still, the differences between the various memory kits are minimal.

Handbrake 0.95

The immense power (and cost!) of Intel's Sandy Bridge Extreme Core i7-3960X CPU virtually ensure that it will see a lot of video rendering and transcoding work, since this is one of the few applications that can really use the resources this processor has. My standard Handbrake test transcodes a standard-definition video of a Family Guy episode to the "iPhone and iPod Touch" presets. I report the time it took to perform the transcode in seconds; lower scores are better.

Handbrake.png

Here again we see razor-thin differences: Frankly, with only 1.2 seconds separating the best and worst scores, all scores can be considered equal within a reasonable margin of error.



 

Comments 

 
# Works in X58 TooDr_b_ 2011-12-22 00:23
Bought this exact four pack, and because they were so cheap, used three of them in an X58 (gigabyte X58A-UD5 board to be precise). In one of the systems, set the xmp profile (profile1) and changed nothing else, and system works flawlessly. Put another set of three in an similarly specd system, and it wouldn't reliably run at 1600Mhz. Attempted some voltage tweaks but got impatient and just set it back to 1333Mhz and kept the xmp profile latency timings and it runs great.

Importantly, as the reviewer notes, you do not really see a perceptible difference between high speeds and lower latencies. It is good RAM, and the low profile heatsinks (which is all you need if you are going to run at 1600Mhz, these do not get hot at all, they are warm to the touch) enable them to fit even under large heatsink overhangs. Perfect.
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# RE: Corsair Vengeance LP 16GB DDR3-1600Squall Leonhart 2011-12-22 00:54
Hi, your benchmark results are lower then they should be for the write tests

enable C state tech and rebench please, the memory performance suffers greatly on Core i processors when C state tech is disabled.
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# RE: RE: Corsair Vengeance LP 16GB DDR3-1600David Ramsey 2011-12-22 07:58
Someone will need to explain to me how keeping CPU's cores running at full spec (disabling C state) makes memory bandwidth _worse_. Until then I'm inclined to regard the test results as an idiosyncrasy in AIDA64. In the forum post quoted below, the AIDA64 administrators seemed unaware of this as well; in any case, they certainly didn't recommend one setting or the other.

In benchmarking tests the most important thing is consistency, so that users can judge the relative performance of the products being tested. All the memory in these benchmarks was tested on the same system with the same settings, so even if the C state thing is legitimate (and I will do more research on this), the results are comparable.
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# RE: RE: RE: Corsair Vengeance LP 16GB DDR3-1600Squall Leonhart 2011-12-22 08:08
its not isolated to AIDA64. Performance is reproducibly worse in applications that like to swap data back and forth such as manipulating a texture currently live in video memory (requires copying back to system memory and writing it back)

these write results are also a good deal less than what i've seen from other benchmarks using the C9 vengeance kit on lesser hardware (the C8 sticks should obviously be a little faster)

see
##pureoverclock.com/review.php?id=1216&page=5
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# RE: RE: RE: RE: Corsair Vengeance LP 16GB DDR3-1600David Ramsey 2011-12-22 08:39
"its not isolated to AIDA64. Performance is reproducibly worse in applications that like to swap data back and forth such as manipulating a texture currently live in video memory (requires copying back to system memory and writing it back)"

Can you provide an example of a reproducible benchmark I can use to test this? If so I can incorporate it into future memory reviews.
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# RE: RE: RE: RE: RE: Corsair Vengeance LP 16GB DDR3-1600Squall Leonhart 2011-12-22 19:14
i was using the emulator dolphin for performance comparisons, i don't know if they would be willing to turn the "Copy to Ram" function into a benchmark
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# RE: RE: RE: Corsair Vengeance LP 16GB DDR3-1600David Ramsey 2011-12-26 08:50
Now that I'm back from vacation, I decided to look into this. In my original tests, C states were enabled, since the test bed machine was run with the default BIOS settings. I re-ran the AIDA64 tests on the same motherboard and CPU used in this review, but with Kingston HyperX Genesis DDR3-2133 memory.

C states enabled: read 18924,, write 14995, copy 16914, latency 48.8ns
C states disabled: read 18897, write 15082, copy 17101, latency 48.9ns

The difference in write performance is a fraction over 1%, well within the margin of error of these tests. I conclude that at least with this motherboard and CPU, whether or not C states are enabled makes no difference in memory performance as measured by AIDA64's tests.
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# RE: RE: RE: RE: Corsair Vengeance LP 16GB DDR3-1600Olin Coles 2011-12-26 09:16
I'm adding this into the article, to prevent future confusion for anyone in disbelief of the results.
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# Bogus Appearance scoreRobert Johnson 2011-12-22 07:13
The appearance score by the reviewer is completely bogus and he obviously didn't do his homework. He fails to mention the fact that the LP memory comes in three different colors so that enthusiasts who build there own PCs can try to color match their mod. In addition the white Corsair LP memory although at CAS9 runs at a very low 1.35 volts. I've been reading benchmark reviews for some time but might stop reading them after this lackluster review effort. As mentioned by Squall Leonhart above you didn't even bench it properly for the write tests.
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# RE: Bogus Appearance scoreDavid Ramsey 2011-12-22 08:01
Your complaint is totally bogus since you obviously didn't read the review. Look at the VERY FIRST SENTENCE on the second page. Since you missed it the first time, I'll quote it here for you:

"You can choose red, blue, or black heat spreaders (there's also a special white, low-voltage version)."

In any case I can only review what a vendors sends me. Corsair sent me a black memory kit, so that's what the appearance score was judged on.

Sigh.
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# RE: Corsair Vengeance LP 16GB DDR3-1600Squall Leonhart 2011-12-22 07:22
the bandwidth should be closer to thus in the following forum post

#forums.aida64.com/index.php?/topic/292-c-state-tech-disabled-negatively-affects-memory-bandwidth-tests/page__p__1712#entry1712
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# RE: Corsair Vengeance LP 16GB DDR3-1600matt 2011-12-22 08:36
tried the 8GB LP Vengeance kit on my x48 blackops and it wont post, no matter what i change in the bios.
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# RE: RE: Corsair Vengeance LP 16GB DDR3-1600David Ramsey 2011-12-22 09:12
If other memory kits work and this one doesn't, sounds as if it's time to take advantage of Corsair's lifetime warranty.
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# Of InterestTman1 2011-12-22 16:59
Might of been nice to touch on these running under XMP 1.3 which is not backward compatible to XMP 1.2, so while enabling XMP settings might work on older mobos, i.e. 1156, 1155, 1366 it would be best to use manual settings on those mobos with these sticks
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# RE: Of InterestSquall Leonhart 2011-12-22 19:11
the xmp profile on the vengeance and vengeance LP sticks works fine on 115x and 1366
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