Scythe Ashura CPU Cooler

Cooling
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TEST RESULTS

Test Results: Scythe Ashura
Fan Voltage
Single Fan
Dual Fan
SPL@1m
Thermal Rise
SPL@1m
12V
34 dBA
38°C
N / A
9V
26 dBA
40°C
8V
19 dBA
42°C
7.6V
14~15 dBA
45°C
Reference 140 mm Fan
12V
29 dBA
40°C
38°C
31 dBA
9V
21~22 dBA
41°C
39°C
23~24 dBA
8V
18 dBA
43°C
40°C
20 dBA
7V
14~15 dBA
44°C
41°C
17 dBA
6V
12~13 dBA
46°C
43°C
13 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

The Ashura was a strong performer, producing thermal rise above ambient of 45°C at 7.6V and 38°C at 12V. The stock fan's results were on par with our reference Noctua 140 mm fan. While the Ashura is a skinnier heatsink than the Mugen 4, it actually benefited more running in dual fan configuration. When a second fan was added, the thermal rise dropped by 3°C at noise levels of 20 dBA@1m and below.

HEATSINK COMPARISON TABLES

°C Rise Comparison: CPU Coolers with Single Stock Fan
SPL (dBA@1m)
20
19
18
17
16
15
14
13
12
11
Thermalright HR-02 Macho
 
39
     
40
41
 
43
 
Scythe Mugen 4
       
40
   
42
 
45
Scythe Yasya
   
40
       
43
   
Cogage TRUE Spirit 1366
     
41
 
43
 
46
 
Zalman CNPS10X Quiet
40
       
42
 
47
 
Scythe Ashura
  42    
44
     
Cooler Master Hyper 212 Plus
   
41
       
44
54
 
Silverstone Argon AR03
   
43
     
48
Scythe Ninja 3
   
44
     
46
   
SilverStone Argon AR01
   
44
     
50

Out of the box, the Ashura is a solid performer, keeping pace with the CNPS10X Quiet and the Hyper 212 Plus. However, it lags well behind its more voluminous cousin, the Mugen 4.

°C Rise Comparison:
CPU Coolers with Single 140 mm Reference Fan
Heatsink
Fan voltage / SPL @1m*
9V
(~20 dBA)
7V
(~15 dBA)
6V
(~12 dBA)
Thermalright Archon SB-E
37
40
42
Prolimatech Armageddon
39
42
45
Scythe Mugen 4
39
42
45
Thermalright HR-02 Macho
39
43
45
NZXT Havik 140
40
43
47
Scythe Ashura
41
44
46
Noctua NH-C14
(top mounted)
40
44
48
Noctua NH-C14
40
44
49
Thermalright Silver Arrow
39
45
49
Phanteks PH-TC14PE
42
45
48
SilverStone Heligon HE02
45
48
50
be quiet! Dark Rock 2
49
51
53
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

Paired with our reference 140 mm fan, trails the Mugen 4 by only a couple of degrees.

°C Rise Comparison:
CPU Coolers with Dual 140 mm Reference Fans
Heatsink
Fan Voltage / SPL*
8V
(~19 dBA)
7V
(~16 dBA)
6V
(~13 dBA)
Prolimatech Genesis
36
37
39
Thermalright HR-02 Macho
36
37
40
Noctua NH-C14
37
39
41
Thermalright Silver Arrow
37
39
41
Noctua NH-D14
38
40
42
Scythe Mugen 4
39
40
42
Phanteks PH-TC14PE
39
41
43
NZXT Havik 140
39
40
43
Scythe Ashura
40
41
43
SilverStone Heligon HE02
43
44
46
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

The Mugen 4's lead narrows to just 1°C with dual 140 mm reference fans but in this configuration, the bigger dual tower coolers dominate the chart.



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