NoFan CR-95C Copper Fanless CPU Cooler

Cooling
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Cooling Performance

Our first test takes place on our demanding LGA1366 open test platform featuring a Core i7-965 at 3.2 GHz and 1.2V. As most fanless coolers have a TDP limit of 95W or less, we only ran 4 instances of Prime95 rather than 8 (it's a quad core chip with Hyper-threading) for our load test.

Passive Cooler Comparison: Thermal Rise
(Core i7-965 @ 3.2 GHz, 1.2V, Prime95, half load)
Time Elapsed
Thermalright HR-02 Macho
SilverStone Heligon HE02
NoFan CR-95C Copper
Start
14°C
14°C
15°C
1 mins
41°C
37°C
41°C
2 mins
48°C
43°C
49°C
3 mins
53°C
49°C
53°C
4 mins
59°C
54°C
55°C
5 mins
65°C
60°C
57°C
6 mins
71°C
64°C
58°C
7 mins
76°C
68°C
59°C
8 mins
79°C
73°C
60°C
9 mins
FAIL
76°C
61°C
10 mins
FAIL
11 mins
12 mins
62°C
13 mins
14 mins
>15 mins

The CR-95C started off on par with the HR-02 Macho but after the four minute mark the rate of temperature increase slowed. The HR-02 failed (the CPU throttled) at about 9 minutes while Heligon HE02 lasted a minute longer. The CR-95C is the first heatsink to actually pass this test, stabilizing at 62°C above ambient after 15 minutes of operation. There was plenty of headroom too as the processor doesn't throttle until it hits a thermal rise of about 80°C at room temperature.

Passive Cooler Performance: Thermal Rise
(Core i5-2400 @ 3.6 GHz, 1.3V, Prime95, full load)
Time Elapsed
NoFan CR-95C Copper
Start
4°C
1 mins
34°C
2 mins
41°C
3 mins
45°C
4 mins
47°C
5 mins
50°C
6 mins
51°C
7 mins
52°C
8 mins
9 mins
10 mins
53°C
11 mins
12 mins
54°C
13 mins
14 mins
>15 mins

The CR-95C also passed the fanless test on our less demanding LGA1155 test platform which is more contemporary with what is powering most modern systems. With a full CPU load, the temperature stopped increasing after the thermal rise hit 54°C which is fairly modest.

Thermal Rise Comparison (°C)
SPL (dBA@1m)
20
19
18
17
16
15
14
13
12
11
Noctua NH-L12
(120 & 92 mm fans)
33
   
34
 
35
 
36
 
Thermalright TRUE
Spirit 120M
 
32
     
34
36
38
 
Noctua NH-U12S
 
33
 
34
   
35
38
 
Noctua NH-L12
(120 mm fan)
   
37
   
38
 
39
42
Prolimatech Panther
         
35
 
42
   
Scythe Big Shuriken 2 Rev.B
 
39
     
43
 
48
 
Reeven Arcziel
       
42
   
47
   
Scythe Samurai ZZ
   
45
   
46
 
52
 
NoFan CR-95C
Copper
(passive)
                 
54
Noctua NH-L12
(92 mm fan)
42
 
44
 
47
 
51
57
Scythe Big Shuriken
43
       
46
 
61
Cooler Master
GeminII M4
     
53
56
 
64
 
Noctua NH-L9i
   
56
   
61
       
Scythe Kozuti
   
57
   
62
 
65
 
Phanteks PH-TC90LS
   
67
     
69
     
Reeven Vanxie
 
66
       
77
 
F
 

As the NoFan CR-95C does not generate any noise we placed its result at 11 dBA on our performance comparison chart (10~11 dBA@1m is our anechoic chamber's ambient noise level). The CR-95C performs as well as a modest mid-range model with a fan running at very low, inaudible speeds. Note that every other cooler in this chart is considerably smaller and cheaper.



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