Heatsink Test – Joe
SUMMARY: Very good performance at low noise – a winning combination.
The good guys at Kingwin sent a sample of their
Kingwin RVT-12025D to test out. This is a four heatpipe heatsink with the heatpipes directly contacting the CPU.
Key Features:
- Four Heat-Pipes directly touching the CPU
- 120mm Fan; Speed: 800~1500 RPM; Noise level: 20~32 dBA @ 65.1~81.3 CFM; Connector: 4 Pin with PWM
- Heatsink Size: 145 x 150 x 129 mm; Weight: 663 grams (w/fan)
- AMD: Socket AM2/754/939/940 CPU, Athlon 64/FX/X2, Opteron, Sempron
- Intel: Socket 775 CPU, Core 2 Extreme/Quad/Duo, Pentium Extreme Edition/D, Celeron D
This profile shows the wide fin assembly with the heatpipes arranged for maximum fan flow:
The base shows one major difference to many other heatpipe heatsinks – the heatpipes contact the CPU’s IHS directly:
This arrangement eliminates one thermal interface – that between the base and heatpipes – common to most other heatpipe heatsinks.
The RVT-12025D was tested on an Asus P5WD2 motherboard P4 Motherboard Test Platform with a modified Pentium D 805 to read CPU case temps (both supplied by Directron).
| Heatsink | Case Temp | Ambient Temp | C/W | On-Die Temp¹ |
| Kingwin RVT-12025D, 1428 rpm, <50 dBA² | 34.5 | 19.7 | 0.16 | 45 |
¹MBM on-die temperatures.
²50 dBA measured 8″ from the fan intake corresponds to about 30 dBA measured 3 feet from the fan, a very quiet noise level.
Results place Kingwin’s RVT-12025D in the topmost rank of heatsinks tested to date (Heatsink Ranking) with the fan at its highest speed setting.
A nice package – relatively low noise and very good performance.
Thanks again to Kingwin for sending this our way.
Disclosure: Joe Citarella has a financial interest in a company developing electronic cooling products.
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