Results
Each of the Coolermaster Real Power PSUs feature tighter rails than the Kingwin they are compared to, though they are about the same in terms of stability. However, if you want to nitpick (and we are talking .01 – .02 difference) both the Coolermaster 850w and 1000w models have the most stable rails of the lot.
|
PF Idle
|
PF Load
|
Watt Idle
|
Watt Load
|
Watt Standby
|
|
| Coolermaster 750w |
0.93
|
0.98
|
180
|
265
|
7
|
| Coolermaster 850w |
0.82
|
0.89
|
275
|
498
|
7
|
| Coolermaster 1000w |
0.89
|
0.92
|
286
|
502
|
7
|
| Kingwin Mach 1 1000w |
0.97
|
0.99
|
315
|
540
|
6
|
When looking at PF ratings and wattages, it’s quite clear that the Kingwin beats all of the Coolermasters by around 10%. Wattage wise, the Kingwin pulls much more however.
Interestingly, the specifications for the Real Power units say that they have a 0.99 PF rating. Obviously this is a little out.
For an explanation on PF ratings, please check out our glossary entry here.
Cost
Prices for these PSUs seem to vary quite a lot, but on average they are as follows:
- 700w unit: £80
- 850w unit: £120
- 1000w unit: £140
Comparing these prices to other units in a wattage to pound ratio, surprisingly the Coolermaster units come up very nicely.
In short, all are good value for money.
Noise Levels
Noise wise, all 3 of the units produce barely any noise. The only way to hear anything from these units is to wedge your ear up close to the fan, and I don’t think anyone but this reviewer will be doing that in a hurry.
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