New and upcoming cooling releases (heatsink, fans, AIO)

continuum said:

I'm still holding off on upgrading, but definitely exciting to see further developments in Zen 4 cooling.

Scythe Launches Fuma 3 High-Performance CPU Cooler

Scythe, the CPU cooling brand originated from Japan is proudly announcing its high-performance flagship dual tower CPU cooler Fuma 3 today. With over 20 years of professional experience accumulated, the Japanese CPU cooling brand Scythe finally launches its new flagship model, the king of dual...

www.techpowerup.com

Scythe Fuma 3 released. Dual 120mm fan tower with 6 x 6mm heat pipes so not the craziest, but looks like the rear fin stack is pretty good sized, so am curious how it performs.

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continuum said:

Woah, that looks amazing. First actual big step in fan performance (vs incremental) in a while, although honestly the past 3 years or so we've seen some solid incremental gains too.

I browse Igors Lab semi-regularly, clearly not enough!

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steelghost said:

Fair play to Alphacool. They are probably one of the few companies in the industry with the clout and scale to attempt something like this. Be interesting to see how Noctua respond!

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Rastaman said:

Surprised no one's yet mentioned the Alphacool Apex Stealth Metal (Power) Fan. Review went up on Igor's Lab two weeks ago. At the moment, they only come in 120mm, but according to the datasheet 140mm, and ARGB versions are coming. Testing provided very impressive results. Looking forward to more sites getting their hands on them for review and seeing what the 140 version can accomplish.

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reckless_sniper said:

I held off mentioning it here, but the Alphacool fans have quite a big question mark with the r/hardware community wrt the ratings (which looked like igor was copying alphacool's data or vice versa). Derbauer got his hands on the fans and the results are way off.


View: https://www.youtube.com/watch?v=8J7jkRbxLYk

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teubbist said:

Yeah, der8auer's testing at most somewhat supported the noise level results, with the massive caveat that his noise floor isn't very low. Everything else failed to come even close to igor's results.

Now we wait for more testing I guess, but Noctua not being dethroned is both unsurprising and a little sad.

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wireframed said:

Shame if so. There are a lot of applications for quiet(er) fans with high static pressure.
Oh well, the server can keep the Noctua 80mms for now.

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continuum said:

Thermal Grizzly KryoSheet Review - Tested on RX 7900 XTX with 475 W

Thermal Grizzly KryoSheet is an interesting alternative to thermal paste. The pre-cut sheet doesn’t dry out over time and you don’t have to try spreading it in a thin layer. In our review we test thermal performance on the AsRock RX 7900 XTX, at up to 475 W.

www.techpowerup.com

Thermal Grizzly Kryosheet tests on an up to 475W AMD Radeon 7900XTX. It's pretty interesting.

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malor said:

I'm not touching the Kryonaut goop I've got going now, since it's working super well, but those Kryosheets are high on the list for my next build.

You can't screw up the application, it never wears out, and it handles huge amounts of heat. That's, like, the best solution ever. It's almost as thermally conductive as metal paste, with none of the drawbacks.

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Looking at GPU temperature I'd say that all materials tested, including KryoSheet perform virtually identically. A difference of 1-3°C really doesn't matter much, unless you're trying to break records. Even for overclocking I wouldn't bet my system stability on a 3°C difference, because that might disappear in summer months, when your AC is off, or when a long gaming session heats up your room. While the temperature results for "hotspot" are similar, they do show a little bit of a bigger spread, up to 5°C, which is starting to become significant, at least for a high-end graphics card. For lower-end cards that run pretty cool anyway, there is no functional difference between 75°C and 80°C, for example, other than the number in monitoring software. Silicon lifetime isn't affected enough by such a small difference, and I think statistically the chances of you breaking the product while applying thermal paste are higher than just letting it run untouched. On the other hand, as mentioned before, after many years, thermal pastes have a tendency to dry out, so replacing thermal paste once during the lifetime of the product does make sense. Using KryoSheet could save you that step, because it won't degrade over time.

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greatlakeexpat said:

If TG can make this closer to price of paste, sure, why not, but at 2-3x the cost?

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malor said:

I've dealt with enough bad paste applications, over the years, that a simple thermal sheet is super appealing. As long as you keep it flat and centered on the die, it'll work correctly every time, and it will keep working, no matter what.

That's miles better than paste. And you're not trading anything away except an extra $10 or $15. It works just as well as paste does, with none of the disadvantages.

It has nothing to do with audiophilia. The graphs you show are very powerful evidence in favor; they're concrete measurements that they do a very good job of transmitting heat. They're showing that you don't need paste anymore. Earlier dry thermal pads worked to some degree, but were inferior to even crummy paste, but this variant is just as good.

The fact that the differences aren't that major is the entire point of those graphs. Them being all jammed together like that means that the product works correctly. You can safely use Kryosheets without giving up performance.

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malor said:

I've dealt with enough bad paste applications, over the years, that a simple thermal sheet is super appealing. As long as you keep it flat and centered on the die, it'll work correctly every time, and it will keep working, no matter what.

That's miles better than paste. And you're not trading anything away except an extra $10 or $15. It works just as well as paste does, with none of the disadvantages.

It has nothing to do with audiophilia. The graphs you show are very powerful evidence in favor; they're concrete measurements that they do a very good job of transmitting heat. They're showing that you don't need paste anymore. Earlier dry thermal pads worked to some degree, but were inferior to even crummy paste, but this variant is just as good.

The fact that the differences aren't that major is the entire point of those graphs. Them being all jammed together like that means that the product works correctly. You can safely use Kryosheets without giving up performance.

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