BitFenix Spectre Pro

The new BitFenix fans are intriguing. BitFenix doesn't really target them for any specific purpose the way Corsair and, to a lesser extent, SilverStone do. At the same time, their fan blade design is unique in that there's a reinforced, bevelled pattern on the individual blades. BitFenix cites this as a measure intended to increase longevity.

Airflow (in CFM) Static Pressure (in mm/H2O) RPM Rated dBA
56.22 1.24 1200 18.9

Judging from the specifications, though, it seems the Spectre Pro is geared more for quiet operation and case airflow than use as a radiator fan. At full bore it's a very quiet fan that produces a healthy amount of airflow, but the static pressure leaves something to be desired. It will be interesting to see if the increased airflow helps balance the low pressure.

Nexus Real Silent Case Fan D12SL-12

I thought it would be interesting to throw this old chestnut into the mix. This Nexus fan comes highly recommended by SilentPC Review for its excellent balance of performance and acoustics. I'd actually been using this as the fan on my Xigmatek Dark Knight for some time before switching to a closed loop cooler, and at full bore it's still pretty much inaudible.

Airflow (in CFM) Static Pressure (in mm/H2O) RPM Rated dBA
36.87 1.2 1000 18

The Nexus isn't that attractive on paper outside of its remarkable efficiency, but anecdotally I found it to be an excellent heatsink fan due to its incredibly low noise as well as its solid performance. Whether or not it will be a solid radiator fan remains to be seen due to its comparatively low airflow and static pressure ratings.

CoolerMaster SickleFlow 120

The CoolerMaster SickleFlow 120 was a last minute entrant; I'd been wandering around Fry's, saw it on the shelf, remembered that it had been mentioned fairly positively on forums when I'd be researching radiator fan performance, and figured I'd snag one and see how well it performed in practice. Opinions seem to be fairly split, with people citing it as having horrible static pressure but other people being extremely happy with it.

Airflow (in CFM) Static Pressure (in mm/H2O) RPM Rated dBA
69.69 2.94 2000 19

If nothing else, the specifications sure are pretty optimistic. For a whopping 1dB more, the SickleFlow theoretically provides almost twice the performance of the Nexus! Just judging by the spec sheet, CoolerMaster's fan should blow the rest of our fans out of contention, but you'll see word of mouth on forums and rated specs aren't always reliable.

NZXT Performance Case Fan 120mm

On the opposite end of the spectrum, we have one of the 120mm NZXT fans that CyberPower PC shipped attached to a 240mm Asetek radiator some time ago. NZXT rates the fan pretty conservatively, but CyberPower still felt like it was a solid enough contender to deploy in a review unit.

Airflow (in CFM) Static Pressure (in mm/H2O) RPM Rated dBA
47.27 0.95 1300 25.35

If the SickleFlow's ratings are overconfident, NZXT's fan seems positively humble by comparison. Of all the fans we're testing it has the lowest rated static pressure, mediocre airflow, and one of the highest noise level ratings. So why deploy it, other than that it's inexpensive? Asetek ships their radiator kits with fans included, why not use one of those? I'll show you.

The Fans We're Testing, Part 1 Test Results
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  • StevoLincolnite - Thursday, August 23, 2012 - link

    I would have loved to have seen the Noctua NF-F12, Noctua are a high-quality (Albeit expensive) brand that allot of enthusiasts go for, myself included on the Corsair H100.
    I spent as much on the 4x Noctua fans as the Corsair H100 cost itself. :)
    Reply
  • jwilliams4200 - Thursday, August 23, 2012 - link

    I was going to say the same thing. The Noctua NF-F12 (not to be confused with the NF-P12) is the perfect fan for cooling a radiator with relatively low noise. Reply
  • kidsafe - Thursday, August 23, 2012 - link

    I own a lot of fans including the NF-F12s, Gentle Typhoon AP-14s, Kama Flow 2s, etc. The NF-F12 has above average static pressure, but it is not even remotely quiet. The plastic stators make the fan noisier than both other fans mentioned above at normalized temperatures. It also makes the fan louder than the S12 and P12. Reply
  • jwilliams4200 - Thursday, August 23, 2012 - link

    Quietness is relative. My guess is the the NF-F12 at 1500rpm would cool as well as the H80 Stock at medium, while being quieter than the H80.

    Also, the NF-F12 comes with a "low-noise adapter" that brings the speed down to 1200rpm. With the LNA, I guess the NF-F12 would perform as well as the NZXT Performance, while being quieter.
    Reply
  • A1phabeta - Friday, March 28, 2014 - link

    Actually, the static pressure of the NF-F12 with the low-noise adaptor is still 1.61 mmH2O, which is amazing considering that the fan's running at just 1200 rpm. Reply
  • StevoLincolnite - Thursday, August 23, 2012 - link

    I actually can't hear my Noctua's over the crappy Asus Sabertooth X79's chipset fan, so they can't be that noisy. Reply
  • sirizak - Thursday, August 23, 2012 - link

    Have a look at Noctuas specifications for static pressure on the NF-F12, its 2.61 mm/H2O. Not even in the ball park of the H80's 7.7 mm/H2O, my bet is the H80 is based on a tried and true Yate Loon D12SH-12, look them up. Reply
  • BlueReason - Friday, August 24, 2012 - link

    True enough, but the H80's fan is also running at 2600rpm as opposed to the Noc's 1500, so that really isn't an accomplishment. Try running the stock fan at 1500 and see what happens. I'll spoil the surprise: It will still be louder than the Noc, and won't cool as well. Also there's more to rad-cooling than SP. Reply
  • Sapiens - Thursday, August 23, 2012 - link

    Same here, disappointed that Noctua was left out of the list. Reply
  • This Guy - Thursday, August 23, 2012 - link

    I like NF-P12's. In push-pull on a heat sink they killed both an exhaust and an intake fan in an Antec Sonata III. In another case, one exhaust fan pulls more air in through the mesh front that the 120mm intake fan down the bottom. Great fans. Reply

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