PWM Performance
Temperatures
| |
Idle |
Load |
| Raijintek Nemesis
Dual Fan |
33 °C |
54 °C |
| Enermax Liqtech
120X |
34 °C |
54 °C |
| Noctua NH-U12S
Dual Fan |
33 °C |
55 °C |
| Raijintek Nemesis
Single Fan |
34 °C |
55 °C |
| Corsair H75 Single
Fan |
35 °C |
55 °C |
| Raijintek Themis
EVO |
35 °C |
56 °C |
| Prolimatech Lynx |
34 °C |
57 °C |
| Enermax ETS-T40
While Cluster |
35 °C |
57 °C |
| Noctua NH-U12S
Single Fan |
36 °C |
57 °C |
| Enermax ETS-T40
Black Twister |
35 °C |
58 °C |
| Scythe Ashura |
36 °C |
58 °C |
| Raijintek Pallas |
37 °C |
58 °C |
| Alpenfohn
Matterhorn Pure |
35 °C |
59 °C |
| Cooler
Master Hyper 103 |
36 °C |
60 °C |
| Thermolab Bada
2010 |
39 °C |
64 °C |
| Scythe IORI
Scior-1000 |
42 °C |
66 °C |
| Thermolab LP53 |
39 °C |
67 °C |
| Thermolab ITX30 |
39 °C |
70 °C |
| Intel Stock |
39 °C |
75 °C |
At this point we plugged the fan(s) to the motherboard CPU fan header and let the
motherboard take care of fan speeds. In other words the motherboard will
adjust the fan speed via PWM signal according to CPU temperature. The idle
temperature is the lowest temperature hit by the processor package after 10
minutes idle. The load temperature is the highest temperature hit by the
processor package after one pass of wPrime v2.10. The
wPrime test takes 4 minutes puts load on all 8 threads.
Room temperature is 25°C.
Fan Speeds
| |
Idle |
Load |
| Scythe Ashura |
436 rpm |
550 rpm |
| Noctua NH-U12S
Dual Fan |
380 rpm |
687 rpm |
| Noctua NH-U12S
Single Fan |
450 rpm |
740 rpm |
| Alpenfohn
Matterhorn Pure |
471 rpm |
770 rpm |
| Scythe IORI
Scior-1000 |
424 rpm |
880 rpm |
| Corsair H75 Single
Fan |
800 rpm |
969 rpm |
| Enermax Liqtech
120X |
580 rpm |
970 rpm |
| Enermax ETS-T40
Black Twister |
820 rpm |
1'110 rpm |
| Raijintek Themis
EVO |
990 rpm |
1'115 rpm |
| Prolimatech Lynx |
765 rpm |
1'077 rpm |
| Enermax ETS-T40
While Cluster |
920 rpm |
1'170 rpm |
| Raijintek Pallas |
952 rpm |
1'170 rpm |
| Raijintek Nemesis
Dual Fan |
1'120 rpm |
1'190 rpm |
| Raijintek Nemesis
Single Fan |
1'120 rpm |
1'270 rpm |
| Cooler
Master Hyper 103 |
950 rpm |
1'465 rpm |
| Thermolab Bada
2010 |
1'250 rpm |
1'500 rpm |
| Intel Stock |
1'230 rpm |
1'630 rpm |
| Thermolab LP53 |
1'475 rpm |
1'672 rpm |
| Thermolab ITX30 |
1'475 rpm |
2'253 rpm |
Values are in RPM, we took the lowest speed hit by the fan(s) in idle and the
highest under load.
Noise Levels
| |
Idle |
Load |
| Noctua NH-U12S
Single Fan |
32.0 dBA |
32.0 dBA |
| Noctua NH-U12S
Dual Fan |
32.0 dBA |
32.4 dBA |
| Alpenfohn
Matterhorn Pure |
32.0 dBA |
32.7 dBA |
| Enermax Liqtech
120X |
32.1 dBA |
32.8 dBA |
| Enermax ETS-T40
Black Twister |
32.3 dBA |
33.0 dBA |
| Corsair H75 Single
Fan |
32.2 dBA |
33.2 dBA |
| Enermax ETS-T40
While Cluster |
33.0 dBA |
33.2 dBA |
| Scythe Ashura |
32.0
dBA |
33.4 dBA |
| Cooler
Master Hyper 103 |
32.0 dBA |
33.6 dBA |
| Prolimatech Lynx |
33.3 dBA |
33.9 dBA |
| Raijintek Nemesis
Single Fan |
33.5 dBA |
34.2 dBA |
| Thermolab Bada
2010 |
33.8 dBA |
34.2 dBA |
| Intel Stock |
33.3 dBA |
34.4 dBA |
| Scythe IORI
Scior-1000 |
33.2 dBA |
34.6 dBA |
| Raijintek Nemesis
Dual Fan |
33.7 dBA |
34.6 dBA |
| Raijintek Themis
EVO |
34.8 dBA |
35.3 dBA |
| Thermolab LP53 |
34.0 dBA |
36.8 dBA |
| Thermolab ITX30 |
34.1 dBA |
37.6 dBA |
| Raijintek Pallas |
35.9 dBA |
41.4 dBA |
Decibel meter (Voltcraft SL-200) has been placed 1 meter away from the
cooler. Measurements are conducted in a quiet room, where there are no other noise source. 32 dBA is the lowest
we can get in our room. Also here
the measurements are conducted at lowest and highest fan speeds in idle and
under load respectively.
Scythe IORI Scior 1000 Review 