Dark Rock 4 vs Dark Rock Slim

Be Quiet! Dark Rock 4 vs Dark Rock Slim Specifications

Differences

Dimensions

Be Quiet Dark Rock 4 is bigger than the Slim and is longer in length and width. The Dark Rock 4 is roughly 24mm longer and 9mm wider than the Dark Rock Slim but has the same height.

Heat pipes

Dark Rock 4 features 6 copper heat pipes while the Dark Rock Slim features 4.

Fan 

Dark Rock 4 comes with a single 135mm Silent Wings 3 PWM fan while the Slim comes with 120mm Silent Wings 3 PWM. While both feature the same design, the 135mm fan comes with higher airflow of up to 70CFM which is roughly 20CFM more than the 120mm fan on the Slim.

Noise

The fan on Dark Rock 4 runs at a lower max speed than the 120mm fan on Dark Rock Slim. On the Rock 4, you can expect up to 21.4dBA of noise at max fan speed while on the Rock Slim it is up to 23.4dBA.

TDP

Dark Rock 4 is rated at 200W while the Dark Rock Slim is rated at 180W.

Weight

The Dark Rock 4 is a heavier cooler with 0.92Kg of weight while Dark Rock Slim is 0.62Kg on the scale.

Similarities

Height

Both the coolers have a height of 159mm.

Compatibility

Both coolers are compatible with an equal number of motherboard sockets that include 1150/1151/1155/1156/1200/1366/2011(-3) Square ILM/2066.

Fan

Both feature a controllable high-speed Silent Wings 3 fan although different in size.

Pricing and Conclusion

Dark Rock 4 is priced at $69.99 while Dark Rock Slim is priced at $64.99. The former provides better cooling per dollar spent due to the bigger aluminium heatsink size and 2 more copper heat pipes.

Also, the fan is bigger and the TDP is higher.