[SOLVED] BEST 750W-850W PSU For Gaming

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Aeacus

Titan
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what about Cooling efficiency will there be some difference in cooling or no ?

You did read the Noctua explanation i linked, right?

In case you missed it (has happened before):
4. Performance: While the base performance of the NH-D15 and NH-D15S heatsinks is identical, the dual fan configuration of the NH-D15 can provide 1-3°C better performance. Users who have sufficient room can also upgrade the NH-D15S with either a 120mm (e.g. NF-A12x25 PWM) or round 140mm (e.g. NF-A15 PWM) fan on the front fin stack in order to achieve the same performance levels as the NH-D15. The fan clips for installing a second fan are included with the NH-D15S.