NZXT C1200 Gold 1200 W Review

Name: NZXT C1200 Gold 1200 W
Brand: NZXT
Price: 260 USD

crmaris

on Mar 20th, 2023,

in Power Supplies.

Manufacturer: NZXT

Fan Noise »

Efficiency

Using the results we gathered, we plotted a chart showing the PSU's efficiency at low loads and loads ranging from 10 to 110 percent of the maximum-rated capacity.

The platform is efficient, especially at light loads.

10–110 % Load Testing

These tests reveal the PSU's load regulation and efficiency levels under high ambient temperatures and show how the fan-speed profile behaves under harsh operating conditions.

Load Regulation & Efficiency Testing Data - NZXT C1200 Gold
Test	12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
10%	8.097A	1.991A	2.009A	0.998A	120.008W	86.75%	0 RPM	<6.0 dB(A)	44.51°C	0.92
10%	12.153V	5.024V	3.286V	5.012V	138.343W	86.75%	0 RPM	<6.0 dB(A)	40.07°C	230.36V
20%	17.210A	2.988A	3.014A	1.199A	239.966W	91.107%	0 RPM	<6.0 dB(A)	45.39°C	0.964
20%	12.147V	5.02V	3.285V	5.007V	263.388W	91.107%	0 RPM	<6.0 dB(A)	40.58°C	230.35V
30%	26.665A	3.489A	3.517A	1.4A	359.27W	93.044%	0 RPM	<6.0 dB(A)	46.23°C	0.975
30%	12.121V	5.018V	3.284V	5.002V	386.125W	93.044%	0 RPM	<6.0 dB(A)	41.11°C	230.34V
40%	36.220A	3.99A	4.021A	1.601A	479.641W	93.341%	1160 RPM	33.6 dB(A)	41.87°C	0.981
40%	12.105V	5.014V	3.283V	4.996V	513.861W	93.341%	1160 RPM	33.6 dB(A)	47.42°C	230.32V
50%	45.414A	4.99A	5.028A	1.803A	599.403W	93.276%	842 RPM	23.7 dB(A)	42.21°C	0.983
50%	12.086V	5.011V	3.282V	4.991V	642.613W	93.276%	842 RPM	23.7 dB(A)	48.25°C	230.31V
60%	54.694A	5.992A	6.034A	2A	719.908W	92.885%	693 RPM	17.1 dB(A)	42.56°C	0.984
60%	12.069V	5.008V	3.282V	4.987V	775.059W	92.885%	693 RPM	17.1 dB(A)	49.28°C	230.29V
70%	63.935A	6.995A	7.042A	2.208A	839.681W	92.368%	984 RPM	28.5 dB(A)	43.4°C	0.986
70%	12.052V	5.005V	3.281V	4.982V	909.066W	92.368%	984 RPM	28.5 dB(A)	50.41°C	230.27V
80%	73.267A	8A	8.049A	2.31A	959.704W	91.811%	1323 RPM	38.1 dB(A)	43.78°C	0.988
80%	12.036V	5.002V	3.279V	4.978V	1045.305W	91.811%	1323 RPM	38.1 dB(A)	51.88°C	230.27V
90%	82.942A	8.505A	8.541A	2.413A	1079.532W	91.187%	1784 RPM	46 dB(A)	44.02°C	0.989
90%	12.021V	4.997V	3.278V	4.973V	1183.896W	91.187%	1784 RPM	46 dB(A)	53.09°C	230.25V
100%	92.333A	9.012A	9.063A	3.024A	1199.567W	90.554%	2153 RPM	50.2 dB(A)	45.28°C	0.989
100%	12.020V	4.993V	3.276V	4.961V	1324.694W	90.554%	2153 RPM	50.2 dB(A)	55.33°C	230.23V
110%	101.667A	10.023A	10.167A	3.027A	1320.172W	89.867%	2155 RPM	50.3 dB(A)	46.7°C	0.989
110%	12.018V	4.988V	3.274V	4.957V	1469.039W	89.867%	2155 RPM	50.3 dB(A)	57.64°C	230.2V
CL1	0.115A	14.369A	14.53A	0A	121.284W	82.156%	1268 RPM	36.6 dB(A)	40.81°C	0.927
CL1	12.159V	5.024V	3.282V	5.038V	147.634W	82.156%	1268 RPM	36.6 dB(A)	46.33°C	230.36V
CL2	0.115A	21.838A	0A	0A	111.385W	80.56%	1274 RPM	36.8 dB(A)	41.76°C	0.921
CL2	12.165V	5.037V	3.281V	5.066V	138.265W	80.56%	1274 RPM	36.8 dB(A)	49.02°C	230.36V
CL3	0.120A	0A	22.07A	0A	74.038W	77.577%	1040 RPM	30.2 dB(A)	42.82°C	0.866
CL3	12.096V	5.02V	3.289V	5.012V	95.442W	77.577%	1040 RPM	30.2 dB(A)	51.88°C	230.37V
CL4	99.801A	0A	0A	0A	1200.305W	90.892%	2149 RPM	50.2 dB(A)	45.17°C	0.989
CL4	12.027V	5.004V	3.284V	5.011V	1320.581W	90.892%	2149 RPM	50.2 dB(A)	55.98°C	230.22V

Light-Load Testing

We measure the PSU's efficiency at loads significantly lower than 10 percent of the maximum capacity—the lowest load the 80 PLUS standard measures. This is important when a PC is idle with its power-saving features turned on.

Light Load Efficiency - NZXT C1200 Gold
Test	12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
20W	1.227A	0.496A	0.501A	0.198A	19.999W	73.833%	0 RPM	<6.0 dB(A)	40.09°C	0.494
20W	12.102V	5.044V	3.295V	5.043V	27.085W	73.833%	0 RPM	<6.0 dB(A)	37.01°C	230.38V
40W	2.700A	0.695A	0.701A	0.298A	39.997W	81.928%	0 RPM	<6.0 dB(A)	40.45°C	0.699
40W	12.104V	5.039V	3.293V	5.037V	48.821W	81.928%	0 RPM	<6.0 dB(A)	37.16°C	230.37V
60W	4.176A	0.895A	0.903A	0.398A	59.995W	85.766%	0 RPM	<6.0 dB(A)	41.62°C	0.803
60W	12.100V	5.029V	3.288V	5.025V	69.949W	85.766%	0 RPM	<6.0 dB(A)	38.08°C	230.37V
80W	5.650A	1.095A	1.104A	0.498A	79.955W	87.065%	0 RPM	<6.0 dB(A)	42.79°C	0.859
80W	12.093V	5.026V	3.287V	5.021V	91.831W	87.065%	0 RPM	<6.0 dB(A)	39.04°C	230.37V

Super-Light Load Testing

We measure the PSU's efficiency with a 10 W load if its maximum power is 500 W or less in the following tests. We apply 2% of its maximum-rated capacity load if the PSU is has a higher rating than 500 W.

Super-Light Load Efficiency - NZXT C1200 Gold
12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
1.800A	0.26A	0.26A	0.054A	24.212W	79.097%	0 RPM	<6.0 dB(A)	32.01°C	0.902
12.096V	5.044V	3.295V	5.045V	30.61W	79.097%	0 RPM	<6.0 dB(A)	31.18°C	115.14V

5VSB Efficiency

5VSB Efficiency - NZXT C1200 Gold
Test #	5VSB	Power (DC/AC)	Efficiency	PF/AC Volts
1	0.1A	0.504W	58.3%	0.026
1	5.04V	0.865W	58.3%	230.39V
2	0.25A	1.26W	67.737%	0.055
2	5.038V	1.86W	67.737%	230.39V
3	0.55A	2.769W	74.551%	0.106
3	5.034V	3.715W	74.551%	230.39V
4	1A	5.029W	77.144%	0.174
4	5.027V	6.517W	77.144%	230.39V
5	1.5A	7.532W	78.249%	0.235
5	5.02V	9.626W	78.249%	230.39V
6	3A	14.998W	79.529%	0.343
6	4.999V	18.859W	79.529%	230.39V

The 5VSB rail could be more efficient.

Power Consumption in Idle and Standby

Idle / Standby - NZXT C1200 Gold
Mode	12V	5V	3.3V	5VSB	Power (AC)	PF/AC Volts
Idle	12.072V	5.045V	3.295V	5.047V	4.331W	0.119
Idle	12.072V	5.045V	3.295V	5.047V	4.331W	230.37V
Standby					0.195W	0.006
Standby					0.195W	230.37V