If these are your only two options, the winner is clearly the Thermalright Royal Pretor 130[www.thermalright.com]

The fan even looks stronger with larger/thicker blades on the Pretor 130 but here is the funny part, you can use any fan even a Noctua heatsink fan. The key is not only in the fans but also the heatsink design itself.

I know this Chinese company, Thermalright, makes fantastic heatsinks for RAM but I am unsure about their fans. They could be similar to CoolerMaster which is not that great but they can suffice.

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Thermalright Royal Pretor 130[www.thermalright.com]

Technical Specs

Heatsink Specifications:
Dimension：L130 mm x W112 mm x H158 mm
Heat pipes：6mm heatpipe x 6 units
Copper Base：C1100 Pure copper nickel plated

TL-H12-X28 FAN Spec:
Dimension：L120 mm x W120 mm x H28 mm
Rated Speed：2150 RPM±10% (MAX)
Noise Level：29.4 dBA
Air Flow：80.45 CFM (MAX)
Air Pressure：2.65 mm H2O (MAX)
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB V2 Bearing (Fluid Dynamic)

TL-HD13-X28 FAN Spec:
Dimension：L130 mm x W130 mm x H28 mm
Rated Speed：1750 RPM±10% (MAX)
Noise Level：28.3 dBA
Air Flow：81.88 CFM (MAX)
Air Pressure：2.38 mm H2O (MAX)
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB V2 Bearing (Fluid-Dynamic)

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Royal Knight 120 SE[www.thermalright.com]

Technical Specs

Heatsink Specifications:
Dimension：L122 mm x W114 mm x H155 mm
Heat pipes：6mm heatpipe x 6 units
Copper Base：C1100 Pure copper nickel plated

TL-C12B V2 FAN Spec:
Dimension：L120 mm x W120 mm x H25 mm
Weight：135g
Rated Speed：1500 RPM±10% (MAX)
Noise Level：25.6 dBA
Air Flow：66.17 CFM (MAX)
Air Pressure：1.53 mm H2O (MAX)
Ampere：0.20 A
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB Bearing (Fluid Dynamic)

TL-C12015B FAN Spec:
Dimension：L120 mm x W120 mm x H15 mm
Weight：115g
Rated Speed：1800 RPM±10% (MAX)
Noise Level：26.1 dBA
Air Flow：59 CFM (MAX)
Air Pressure：1.24 mm H2O (MAX)
Ampere：0.18 A
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB V2 Bearing (Fluid-Dynamic)

thanks for the reply, is there anybody who has experience of both fans?

Originally posted by Bryan999:

thanks for the reply, is there anybody who has experience of both fans?

https://www.youtube.com/watch?v=YY-8PZKcMYg

thanks for the reply so that seems to say that the peerless assassin is better than the pretor but tomshardware basically says the pretor is the best air cooler there is so not sure which one to trust, the peerless assassin i can get for £30 and the pretor is £39 so not much money in it just want to buy the best one.

Look at the tech specs, OP

Thermalright Royal Pretor 130 is still better. Personally I like the up to 80+CFM rating on both models of the 130 Pretor.

Originally posted by Alice Liddell:

Thermalright Royal Pretor 130[www.thermalright.com]

Technical Specs

Heatsink Specifications:
Dimension：L130 mm x W112 mm x H158 mm
Heat pipes：6mm heatpipe x 6 units
Copper Base：C1100 Pure copper nickel plated

TL-H12-X28 FAN Spec:
Dimension：L120 mm x W120 mm x H28 mm
Rated Speed：2150 RPM±10% (MAX)
Noise Level：29.4 dBA
Air Flow：80.45 CFM (MAX)
Air Pressure：2.65 mm H2O (MAX)
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB V2 Bearing (Fluid Dynamic)

TL-HD13-X28 FAN Spec:
Dimension：L130 mm x W130 mm x H28 mm
Rated Speed：1750 RPM±10% (MAX)
Noise Level：28.3 dBA
Air Flow：81.88 CFM (MAX)
Air Pressure：2.38 mm H2O (MAX)
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB V2 Bearing (Fluid-Dynamic)

Thermalright Peerless Assassin 120[www.thermalright.com]

Technical Specs

Heatsink Specifications:
Dimension：L125 mm x W135 mm x H157 mm
Weight：750g
Heat pipes：6mm heatpipe x 6 units
Fin：T = 0.4 mm；Gap=1.8 mm
Copper Base：C1100 Pure copper nickel plated

TL-C12 FAN Spec:
Dimension：L120 mm x W120 mm x H25 mm
Weight：135g
Rated Speed：1550 RPM±10% (MAX)
Noise Level：25.6 dBA
Air Flow：66.17 CFM (MAX)
Air Pressure：1.53mm H2O (MAX)
Ampere：0.20 A
Connector：4 Pin (PWM Fan connector)
Bearing Type : S-FDB Bearing (Fluid Dynamic)

thanks for the reply, i hadn't noticed the difference in air flow.

thanks i think i have decided on the royal pretor unless something else happens, would it be worth replacing the fans or are the fans that come with it good?

just seen a comment on amazon about the royal pretor install it says "A phenomenally good cooler, with a slightly difficult fitting process" and A Good option for the competent PC Builder, this slighty worries me as i am a beginner but i have seen videos on youtube of the other thermalright cooler and they seemed ok to install.

just read the instructions for the peerless assassin and the the royal pretor and the instructions are basically the same but slightly different wording so i think i am ok about it, unless someone tells me different or says get this one instead.

they are not difficult to install
just use the correct spacers and screws for the socket type
dont overtighten, just go til they stop and snug

ok thanks