Heatsinks with heatpipes have been the prefered method of air cooling processors for several years now. While the number of variations in design seems to be limitless, the basic principal has remained the same. A series of fluid filled pipes just behind the base of the heatsink lead up to a radiator for the processor's heat to be dissipated (either passively or with a fan).
Recently a few manufacturer's have tried their hand at improving this design by removing the base plate found between the processor and the heatpipes. By eliminating this extra interface and having the processor in direct contact with the heatpipes it is quite possible to improve thermal transfer and more effectively cool a processor.
is one brand that has adopted this new approach, and they refer to the concept as HDT, or Heatpipe Direct Touch. Their Revolution RVT-9225 CPU cooler is shown in the promotional image above, and is one of the few units on the market to take the tried and true performance of a heatpipe cooler and give it a potential boost with "HDT Technology".
Before taking a closer look at the Revolution RVT-9225 Heatpipe Direct Touch CPU Cooler provided for review, let's look at the rest of the published data taken from the Kingwin
» Intel: Socket 775 CPU, Core 2 Extreme/Quad/Duo, Pentium Extreme Edition/D, Celeron D.
» AMD: Socket AM2/754/939/940 CPU, Athlon 64/FX/X2, Opteron, Sempron.
» Heat-pipe Direct Touch Technology (H.D.T.) Technology.
» Air-Flow Spoiler.
» Anti-Vibration Rubber.
» 3 pcs High Performance U Type Heat-Pipe Direct Touch w/ CPU.
» Light Weight.
» High Performance & Easy Installation.
» 92 mm High Efficient PWM Fan.
» 3 in 1 Application: LGA775 push-pin/K8 & AM2 Tool-Less Clip.
» Model: RVT-9225
» Fan speed: 1200~2800 RPM
» Fan size: 92 x 92 x 25 mm PWM Fan
» Bearing type: Rifle bearing
» Noise level: 23~35 dBA
» Max air flow: 39~54.6 CFM
» Heatsink dimension: 92(L) x 134(H) x 50(W) mm
» Heatsink material: Aluminum w/ copper base
» Weight: 410 g (w/fan)
» Rated voltage: 12 VDC
» Thermal resistance: 0.18 C/W
» Life expectancy: 50,000 hrs
» Connector: 4 Pin with PWM