Thermalright Ultra 120 Vs Scythe Ninja, Hard decision

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Kidcash
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Thermalright Ultra 120 Vs Scythe Ninja, Hard decision

Post by Kidcash » Sun Apr 15, 2007 3:27 am

I have taken a look at 2 comparisons on these heatsinks. One table seems to show that the Ninja beats the Thermalright, However Another Table shows that the Thermalright is Better.

http://www.silentpcreview.com/article46-page5.html - Ninja Wins

http://www.silentpcreview.com/article646-page3.html - Thermalright Wins

What is happening here? Which one of these heatsinks is better?

Thanks,
Kidcash.

SilentPC Should Compare These 2 heatsinks, along with the Thermalright Ultra 120 Extreme.

wwenze
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Post by wwenze » Sun Apr 15, 2007 5:22 am


Kidcash
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Post by Kidcash » Sun Apr 15, 2007 5:32 am

Yeah, but how can it make a difference?
Both Heatsinks are tested with same equipment, however the Ultra Beats the Ninja in one test, and in the other its the other way around.

Looks like on the P4 2.8, the Thermalright Wins, however when you goto the test with the much hotter Pentium D, The Ninja Wins.

Any Ideas?
Does this mean the Ninja can deal with higher temps better?

Bobendren
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Post by Bobendren » Sun Apr 15, 2007 8:10 am

Mounting pressure perhaps?

badbadtz560
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Post by badbadtz560 » Sun Apr 15, 2007 8:13 am

scythe ninja revision B has been known for retention clip issues b/c it uses the same weak pushpins as the stock lga775 heatsinks but is several times heavier. I'd recommend the thermalright unless there's a revision C.. or unless you can get the old revision A.

I haven't had an issue w/ my scythe ninja.. but i'm someone who's satisfied as long as my cpu doesnt ever overheat

Kidcash
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Post by Kidcash » Mon Apr 16, 2007 8:55 am

Everybody's been saying the Thermalright Ultra is the best, however one of those tests dont seem to reflect that.

Felger Carbon
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Post by Felger Carbon » Mon Apr 16, 2007 9:07 am

When the Ultra first came out, it could only point its fan at the PSU on 98% of AMD boards. To put it politely, that's an unoptimal arrangement. Since then, there's an option of a S-clip (Z-clip??) that allows its fan to point at the exhaust. But if you can possibly hold out for a month or so, the U120 Extreme is coming out, and it's a better cooler because of additional heatpipes (as confirmed by reviews).

continuum
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Post by continuum » Mon Apr 16, 2007 9:07 am

At lower power levels (e.g. the 78W calcuated example) the Ninja performs better-- but once you crank things up (the 100W calculated example), the Thermalright seems to perform better, it doesn't reach saturation point as far as performance quite as quickly.

Regarding the Ninja mounting problems, nothing a trip to the local hardware store won't fix.

At stock speeds on all the E6400's and E6600's and whatnot I've used, I am very happy witn the Ninja, both in the original rev and rev B. As soon as I shoot for my standard baseline overclock of 3.2ghz, though, temps go up more than I would like and I believe the Ultra-120 or the upcoming Ultra-120 Extreme would be a better choice, particularly if you don't need the lower end of low noise from your fans.

cmthomson
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Post by cmthomson » Mon Apr 16, 2007 6:13 pm

I have no idea what wattage would "saturate" either a Ninja or an Ultra. Both can handle 150W easily. My old OC'd 830 D, which cranked out at least 150W, was well below throttling with a Ninja and an 800 RPM fan.

continuum
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Post by continuum » Mon Apr 16, 2007 8:19 pm

I don't know either, but that's what I've been experiencing. :p My last E6600 @ 3.2ghz/1.35v throttled as reported in Intel TAT as soon as it hit 69C... :o

SockToy
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Post by SockToy » Tue Apr 17, 2007 12:34 am

Hey Continuum ;) Funny who you bump in to on different boards.

FWIW, E6600 @ 3.2 (400x8) running at 1.26V reported via speedfan (not bios) idling at 31/32c (core0/core1) via MBM5 with core2duo plugin on an Ultra 120.

Case is a P180 with Scythe S-FLEX D on the exhausts and an E on the cooler.

J. Sparrow
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Re: Thermalright Ultra 120 Vs Scythe Ninja, Hard decision

Post by J. Sparrow » Tue Apr 17, 2007 11:18 am

[Rant mode ON]
Kidcash wrote:What is happening here?
Good question. We have to live with the fact SPCR has two different results for the same heatsinks and they say they don't know why. I advise you to read the forum thread regarding the second article, you should find it interesting.

It's worth of noting that on the forums sheer boatloads of people have been complaining about the Ninja B not providing enough pressure on 775-based systems (this won't explain the differences in SPCR tests, they used Rev A which had different/better mounting system)

Yet, on the Ninja review you can read:
SPCR wrote:The cooling provided by the Ninja has not changed"
while this is strictly correct, there is no mention of the mounting pressure issues which so many people have experienced; I guess a simple Post Scriptum would have been enough to save much headscratching and countless threads on the forum.

neon joe
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Re: Thermalright Ultra 120 Vs Scythe Ninja, Hard decision

Post by neon joe » Tue Apr 17, 2007 1:37 pm

It could be simply be a case of experimental error. I'm not saying that anyone made an error, just that different tests, even with the same equipment, can give slightly different results. Mounting pressure was listed as a variable earlier, and there are others. Ambient temperature can be controlled, but could the temp in the room change more than one degree during a test? Sure.

Since the Ultra 120 and the Ninja are so close (in most tests), I am not surprised there is this apparent "discrepancy".

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