Introduction

The CNPS11X Performa is another member of the CNPS11X family, like the CNPS11X Extreme that we already tested. Similar to its brother, it has a V-shaped heatsink and a 120 mm fan, but it has only four heatpipes. Let’s test it and discover which one performs better.

Comparing the CNPS11X Extreme and the CNPS11X Performa, they look pretty much alike at first sight. The only features they actually share are the shape of the heatsink and the size of the fan; while the Extreme has five heatpipes, the Performa has only four. The base is also different, as the Extreme has a nickel-plated base, and the Performa has direct-touch heatpipes. The fan is dissimilar, too.

The box of the CNPS11X Performa is presented in Figure 1.

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Figure 1: Package

Figure 2 shows the contents of the box: the cooler itself, a small bag of thermal compound, a manual, and installation hardware.

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Figure 2: Accessories

Figure 3 displays the Zalman CNPS11X Performa.

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Figure 3: The CNPS11X Performa

This cooler is discussed in detail in the following pages.

The CNPS11X Performa

Figure 4 illustrates the front of the heatsink, where you can see the black, simple 120 mm fan.

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Figure 4: Front view

Figure 5 reveals the side of the cooler, where the four heatpipes are exposed.

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Figure 5: Side view

The rear of the heatsink is shown in Figure 6.

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Figure 6: Rear view

In Figure 7, you can see the top of the heatsink, which is closed by a larger fin. Here is also a clear view of the position of the wire fan holders.

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Figure 7: Top view

The CNPS11X Performa (Cont’d)

The base of the cooler is seen in Figure 8. The heatpipes keep direct contact to the processor.

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Figure 8: Base

In Figure 9, you can see the CNPS11X Performa without the fan. Notice that the bottom of the heatsink is closed with a larger fin, but it has folds that direct part of the airflow to the voltage regulator of the motherboard.

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Figure 9: Fan removed

Figure 10 shows the PWM fan that comes with the CNPS11X Performa.

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Figure 10: Fan

Installation

The first step in the installation process of the CNPS11X Performa is to screw two metal clips to the base of the cooler. Figure 11 shows the clips to be used with Intel CPUs in place.

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Figure 11: Clips installed

Figure 12 reveals the backplate used to install the cooler. You must install the nuts at the backplate in the holes matching the socket used by your CPU.

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Figure 12: Backplate

Locate the backplate at the solder side of the motherboard, put the cooler over the CPU, and hold it in place using four screws, as shown in Figure 13.

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Figure 13: Heatsink installed

The last step is to install the fan, as you can see in Figure 14.

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Figure 14: Fan installed

How We Tested

We tested the cooler with a Core i7-860 CPU (quad-core, 2.8 GHz), which is a socket LGA1156 processor with a 95 W TDP (Thermal Design Power). In order to get higher thermal dissipation, we overclocked it to 3.3 GHz (150 MHz base clock and 22x multiplier), keeping the standard core voltage (Vcore), which was the maximum stable overclock we could make with the stock cooler. Keep in mind that we could have raised the CPU clock more, but to include the stock cooler in our comparison, we needed to use this moderate overclock.

We measured noise and temperature with the CPU idle and under full load. In order to get 100% CPU usage in all threads, we ran Prime 95 25.11 with the "In-place Large FFTs" option. (In this version, the software uses all available threads.)

We compared the tested cooler to the Intel stock cooler with a copper base (included with the CPU), as well as with other coolers. Note that in the past, we tested coolers with a socket LGA775 CPU, and we retested some "old" coolers with this new methodology. This means you can find different values in older reviews than the values you will read in the next page. Every cooler was tested with the thermal compound that accompanies it.

Room temperature measurements were taken with a digital thermometer. The core temperature was read with the SpeedFan program (available from the CPU thermal sensors), using an arithmetic average of the core temperature readings. During the tests, the left panel of the case was open.

The sound pressure level (SPL) was measured with a digital noise meter, with its sensor placed 4" (10 cm) from the fan. We turned off the case and video board cooler fans so they wouldn't interfere with the results. This measurement is only for comparison purposes, because a precise SPL measurement needs to be made inside an acoustically insulated room with no other noise sources, which isn't the case here.

Hardware Configuration

• Processor: Core i7-860
• Motherboard: Gigabyte P55A-UD6
• Memory: 2 GB Markvision (DDR3-1333/PC3-10700 with 9-9-9-22 timings), configured at 1,200 MHz
• Hard disk: Seagate Barracuda XT 2 TB
• Video card: Zotac GeForce GTS 250
• Video resolution: 1680x1050
• Video monitor: Samsung Syncmaster 2232BW Plus
• Power supply: Seventeam ST-550P-AM
• Case: 3RSystem L-1100 T.REX Cool

Operating System Configuration

• Windows 7 Home Premium 64 bit SP1

Software Used

• Prime95
• SpeedFan

Error Margin

We adopted a 2 ^oC error margin, meaning temperature differences below 2 ^oC are considered irrelevant.

Our Tests

The table below presents the results of our measurements. We repeated the same test on all coolers listed below. Each measurement was taken with the CPU at idle and at full load. In the models with a fan supporting PWM, the motherboard controlled the fan speed according to core load and temperature. On coolers with an integrated fan controller, the fan was set at the minimum speed on the idle test and at full speed on the full load test.

		Idle Processor			Processor at Full Load
Cooler	Room Temp.	Noise	Speed	Core Temp.	Noise	Speed	Core Temp.
Intel stock (socket LGA1156)	14 °C	44 dBA	1700 rpm	46 °C	54 dBA	2500 rpm	90 °C
Cooler Master Hyper TX3 G1	14 °C	47 dBA	2050 rpm	33 °C	56 dBA	2900 rpm	62 °C
Zalman CNPS10X Extreme	14 °C	45 dBA	1400 rpm	27 °C	53 dBA	1950 rpm	51 °C
Thermaltake Silent 1156	14 °C	44 dBA	1200 rpm	38 °C	49 dBA	1750 rpm	69 °C
Noctua NH-D14	14 °C	49 dBA	1250 rpm	27 °C	49 dBA	1250 rpm	53 °C
Zalman CNPS10X Performa	14 °C	46 dBA	1500 rpm	28 °C	52 dBA	1950 rpm	54 °C
Prolimatech Megahalems	14 °C	40 dBA	750 rpm	27 °C	60 dBA	2550 rpm	50 °C
Thermaltake Frio	14 °C	46 dBA	1450 rpm	27 °C	60 dBA	2500 rpm	50 °C
Prolimatech Samuel 17	14 °C	40 dBA	750 rpm	40 °C	60 dBA	2550 rpm	63 °C
Zalman CNPS8000A	18 °C	43 dBA	1400 rpm	39 °C	54 dBA	2500 rpm	70 °C
Spire TherMax Eclipse II	14 °C	55 dBA	2200 rpm	28 °C	55 dBA	2200 rpm	53 °C
Scythe Ninja3	17 °C	39 dBA	700 rpm	32 °C	55 dBA	1800 rpm	57 °C
Corsair A50	18 °C	52 dBA	1900 rpm	33 °C	52 dBA	1900 rpm	60 °C
Thermaltake Jing	18 °C	44 dBA	850 rpm	34 °C	49 dBA	1300 rpm	60 °C
GlacialTech Alaska	18 °C	43 dBA	1150 rpm	36 °C	51 dBA	1600 rpm	60 °C
Deepcool Gamer Storm	18 °C	43 dBA	1100 rpm	35 °C	48 dBA	1600 rpm	62 °C
Corsair A70	26 °C	56 dBA	1900 rpm	40 °C	56 dBA	1900 rpm	65 °C
Deepcool Ice Blade Pro	23 °C	45 dBA	1200 rpm	38 °C	52 dBA	1500 rpm	64 °C
AC Freezer 7 Pro Rev. 2	23 °C	47 dBA	1750 rpm	44 °C	51 dBA	2100 rpm	77 °C
Corsair H70	27 °C	60 dBA	1900 rpm	37 °C	60 dBA	1900 rpm	61 °C
Zalman CNPS9900 Max	27 °C	55 dBA	1600 rpm	38 °C	58 dBA	1750 rpm	63 °C
Arctic Cooling Freezer 11 LP	25 °C	45 dBA	1700 rpm	51 °C	49 dBA	1950 rpm	91 °C
CoolIT Vantage	26 °C	60 dBA	2500 rpm	37 °C	60 dBA	2500 rpm	62 °C
Deepcool Ice Matrix 600	25 °C	46 dBA	1100 rpm	41 °C	53 dBA	1300 rpm	69 °C
Titan Hati	26 °C	46 dBA	1500 rpm	40 °C	57 dBA	2450 rpm	68 °C
Arctic Cooling Freezer 13	27 °C	49 dBA	1950 rpm	41 °C	53 dBA	2300 rpm	70 °C
Noctua NH-C14	26 °C	52 dBA	1300 rpm	37 °C	52 dBA	1300 rpm	61 °C
Intel XTS100H	26 °C	49 dBA	1200 rpm	42 °C	64 dBA	2600 rpm	68 °C
Zalman CNPS5X SZ	23 °C	52 dBA	2250 rpm	38 °C	57 dBA	2950 rpm	69 °C
Thermaltake SlimX3	21 °C	50 dBA	2700 rpm	46 °C	50 dBA	2750 rpm	99 °C
Cooler Master Hyper 101	21 °C	50 dBA	2600 rpm	38 °C	57 dBA	3300 rpm	71 °C
Antec Kühler H2O 620	19 °C	52 dBA	1400 rpm	34 °C	55 dBA	1400 rpm	58 °C
Arctic Cooling Freezer 13 Pro	20 °C	46 dBA	1100 rpm	36 °C	49 dBA	1300 rpm	62 °C
GlacialTech Siberia	22 °C	49 dBA	1400 rpm	34 °C	49 dBA	1400 rpm	61 °C
Evercool Transformer 3	18 °C	46 dBA	1800 rpm	33 °C	51 dBA	2250 rpm	65 °C
Zalman CNPS11X Extreme	20 °C	51 dBA	1850 rpm	34 °C	56 dBA	2050 rpm	61 °C
Thermaltake Frio OCK	15 °C	44 dBA	1000 rpm	27 °C	64 dBA	2200 rpm	51 °C
Prolimatech Genesis	18 °C	49 dBA	1050 rpm	30 °C	49 dBA	1050 rpm	54 °C
Arctic Cooling Freezer XTREME Rev. 2	15 °C	41 dBA	1050 rpm	32 °C	44 dBA	1400 rpm	60 °C
NZXT HAVIK 140	16 °C	48 dBA	1250 rpm	29 °C	49 dBA	1250 rpm	55 °C
Antec Kühler H2O 920	18 °C	41 dBA	650 rpm	29 °C	64 dBA	2500 rpm	49 °C
Zalman CNP7X LED	18 °C	45 dBA	1950 rpm	33 °C	48 dBA	2150 rpm	58 °C
EVGA Superclock	14 °C	43 dBA	1300 rpm	27 °C	58 dBA	2350 rpm	47 °C
Evercool Transformer 4	15 °C	46 dBA	1500 rpm	26 °C	53 dBA	1950 rpm	52 °C
Xigmatek Dark Knight	18 °C	47 dBA	1700 rpm	30 °C	53 dBA	2150 rpm	57 °C
Xigmatek Aegir	15 °C	44 dBA	1500 rpm	27 °C	50 dBA	1950 rpm	52 °C
Cooler Master GeminII S524	16 °C	45 dBA	1300 rpm	29 °C	53 dBA	1800 rpm	58 °C
Enermax ETS-T40-TA	16 °C	40 dBA	1050 rpm	28 °C	48 dBA	1800 rpm	55 °C
Corsair H80	14 °C	42 dBA	2150 rpm	25 °C	52 dBA	2150 rpm	47 °C
Akasa Venom Voodoo	13 °C	40 dBA	1000 rpm	26 °C	48 dBA	1500 rpm	51 °C
Xigmatek Thor's Hammer	15 °C	44 dBA	1500 rpm	30 °C	50 dBA	2000 rpm	55 °C
Cooler Master Hyper 612 PWM	19 °C	45 dBA	1400 rpm	30 °C	52 dBA	1900 rpm	54 °C
Xigmatek Loki	17 °C	44 dBA	1850 rpm	34 °C	55 dBA	2750 rpm	60 °C
Cooler Master Hyper 212 EVO	14 °C	44 dBA	1250 rpm	26 °C	50 dBA	1750 rpm	50 °C
Xigmatek Gaia	17 °C	44 dBA	1250 rpm	32 °C	46 dBA	1500 rpm	61 °C
Rosewill RCX-ZAIO-92	21 °C	48 dBA	2050 rpm	37 °C	54 dBA	2600 rpm	68 °C
Thermalright True Spirit 120	16 °C	41 dBA	1000 rpm	30 °C	46 dBA	1400 rpm	55 °C
Corsair H100	20 °C	55 dBA	2000 rpm	29 °C	59 dBA	2000 rpm	50 °C
Zalman CNPS12X	20 °C	47 dBA	1200 rpm	31 °C	47 dBA	1200 rpm	58 °C
Thermalright Macho	23 °C	41 dBA	1100 rpm	36 ° C	44 dBA	1300 rpm	61 °C
NZXT HAVIK 120	21 °C	55 dBA	1800 rpm	37 °C	55 dBA	1800 rpm	66 °C
Zalman CNPS11X Performa	19 °C	44 dBA	1450 rpm	30 °C	48 dBA	1600 rpm	57 °C

In the graph below, at full load you can see how many degrees Celsius hotter the CPU core is than the air outside the case. The lower this difference, the better is the performance of the cooler.

Main Specifications

The main specifications for the Zalman CNPS11X Performa CPU cooler include:

• Application: Sockets 775, 1155, 1156, 1366, 2011, AM2, AM2+, AM3, AM3+, and FM1 processors
• Dimensions: 5.3 x 3.1 x 6.1 inches (135 x 80 x 154 mm) (W x L x H)
• Fins: Aluminum
• Base: Direct-touch heatpipes
• Heat-pipes: Four 6-mm copper heatpipes
• Fan:120 mm
• Nominal fan speed: 1,600 rpm
• Fan air flow: NA
• Maximum power consumption: 2.4 W
• Nominal noise level: 26 dBA
• Weight: 1.0 Lb. (450 g)
• Extra features: None
• More information: http://www.zalman.com
• Average price in the US: We couldn't find this product being sold in the US

Conclusions

The performance of the Zalman CNPS11X Performa is excellent for a cooler of this weight and size; it is also quiet and beautiful.

In our system, it performed better than the CNPS11X Extreme, which may sound a little strange because the Extreme is probably priced higher, but perhaps the direct touch heatpipes improved the whole design, even with one fewer heatpipe. This may also be the case because the Performa doesn’t have the installation issues that we found with the Extreme.

Because of the cooling performance with good noise level, nice look and low weight, the Zalman CNPS11X Performa receives our Silver Award.