Evercool Silent Shark CPU Cooler Review (Part 3)

7/2/2013 9:31:16 AM

Cooling efficiency

The results of our cooling efficiency tests on Evercool Silent Shark and its opponent in an LGA 2011 platform are given in the following table and diagram:

Table comparing the results

Table comparing the results

Chart comparing the results

Chart comparing the results

Frankly speaking, we do not expect Silent Shark Evercool will do well: the maximum and average speed of its two fans successfully compete with Phanteks PH-TC14PE! Of course,Evercool Silent Shark has a dual-array aluminum heatsink with larger effective surface, six copper heatpipes 6 mm in diameter, two fans, highly reliable retention with high pressure hold, but we  have tested many types of coolers that also have all the above factors, and none of them can be considered a worthy opponent for Phanteks. Here, by contrast, we see very good cooling performance even with nominal operation mode.

At the maximum speed of its default fans Silent Shark is only 1⁰C behind PH-TC14PE, at the medium speed of 1640/1670 RPM the difference is the same 1⁰C, though the Phanteks cooler works at only 800 RPM in this case. If we look at lower fan speeds,  Evercool Silent Shark loses very little efficiency. And the main reason here is the external cooling fan, with the rotational speed can not be adjusted.

If we equip Evercool Silent Shark heatsink with two identical Corsair cooling fans, which can be adjusted in sync, we'll see a more vivid dependence of the cooling efficiency on the fan speed.  It would even be fair to call it linear, because every time the fan rotation speed is lowered by 200 RPM (except for the first 600 RPM), the CPU temperature increases by 3⁰C, and at 800 RPM the cooler could no longer bear the load that is why the maximum temperature value is crossed out. In general, we can not assert that using two alternative fan improves cooling efficiency of Evercool Silent Shark. Maybe if we can install a 140 mm fan instead of a 120 mm one, we can gain a few degrees C, but the plastic fan mounts of the Evercool Silent Shark cooler do not allow that.

Now let's obtained results to summary table and diagram, where all coolers are tested in their default configuration in quiet mode and at maximum fan rotation speed. The processor in this case has been overclocked to 4375 MHz with Vcore set at 1,385 V.

Chart comparing the results

Chart comparing the results

At maximum rotational speed of two default fans, Evercool Shark Silent failure when standing after four super-coolers. This is a great result, although in terms of sound, Silent Shark Evercool was only better than SilverStone Heligon HE01. In relatively quiet mode when the central fan rotates at 820 RPM, Evercool Silent Shark stays in the leading group and outperforms such powerful competitors as Thermalright Macho or Archon. However, it is important to keep in mind that the exterior fan of the Evercool Silent Shark cooler doesn’t support fan rotation speed adjustment that is why it will always spin at 1,600 RPM (1,400 RPM ±15%), according to its official technical specifications.

After this test, we decided to check out what Evercool Silent Shark likely to be at higher CPU clock. Unfortunately, none of our numerous attempts engaging difference Vcore settings succeeded. Each test ended up with an error.

Testing process screenshot

Testing process screenshot

As a result, Evercool Silent Shark cooler took the leading position in our summary table and diagram for maximum CPU overclocking, but only in the junior group:

Chart comparing the results

Chart comparing the results

Noise level

We measured the noise levels of the cooler throughout the entire range of the fan's speed, as described in the content about testing methods. Here are the results:

The graph describes the noise level

The graph describes the noise level

As we see, Evercool Silent Shark has some advantages when considering the same rotational speed. In fact, this is not surprising, because it uses 120x25 mm fan instead of 140 mm fan on the Phanteks coolers. Silent Shark still runs quite smoothly up to 1,030 RPM, while the Phanteks PH-TC14PE has to reduce the fan speed to 700 RPM to stay within the acoustic comfort zone. Maximum noise level of Phanteks is 47.7 dBA, at nearly 1,300 RPM, while the Evercool achieve the same noise level generated at 1850 RPM. In other words,  taking into consideration the previously obtained results of the cooling efficiency tests for these two coolers, we can conclude they equal each other actually. And we should give Silent Shark and Evercool in general due credit: this is a truly unprecedented accomplishment.


The new Evercool Silent Shark cooler surprised us with its significant cooling efficiency. Even though it is only slightly behind the concept of the best of the best (in terms of maximum processor overclocking), we must admit that this Evercool's product turns out to be a great success. In our opinion, the potential of this cooling device is not completely over, because all that we really need to remove is the plastic cap, use traditional wire clips to attach two high-quality 140 mm fans with synchronous PWM support in the 600-1,600 RPM range, and make a few technologically simple optimizations to the fins in order to lower airflow resistance. Then, Silent Shark from Evercool will win its rightful place among the leaders in contemporary air cooling. However, despite the Evercool Silent Shark cooler is new, it is very attractive due to its high performance and comprehensive design, high durability, simple installation and the ability to redirect airflow to the components around the processor socket.

Technical standard and proposed price

·         Cooler's dimensions (fan) (LxWxH), mm: 165x140x166 (120x120x25, 2 fans)

·         Weight, g: 1,246

·         Materials and design: V-tower heatsink is assembled from aluminum fins, placed on 6 copper heatpipes 6 mm in diameter, the tubes pass through nickel-plated copper base of the heat sink

·         The heatsink fins 90 (45x2)

·         The heatsink fins thickness, mm: 0.4

·         The gap between heatsink fins: 2.0

·         The calculated heat dissipation area, cm2: no data

·         Type and module of fans: Evercool EC12025M12EA, Evercool EC12025M12EA

·         The rotational fan speed, RPM: 1,400 (±15%), 800-2,200 (±15%)

·         Cooling airflow, CFM: 66.6/60.5

·         Noise level, dBA: 16-26

·         Fan bearings: Fluid Dynamid Bearings

·         The nominal/boot voltage, V: 12 / 3~5

·         Fan's MTBF, hours: 60.000

·         Fan's current, A: 0.28/0.32

·         Fan's energy consumption, W: 3.36/3.84

·         Compatible CPU's socket: LGA 775/1155/1156/1366/2011, Socket 939/AM2(+)/AM3(+)/FM1/FM2

·         Other factors: external fan can be adjusted to cool the motherboard VRM components that can be associated with 120mm or 140mm fan, Evercool thermal paste.

·         Proposed price: 75$



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