Temperature And Sound Level
We measure each card's thermal behavior at a constant 22 °C (72 °F) ambient temperature, at normal humidity.
To put the following diagram into perspective, almost every card we benchmark bumps up against its factory-set temperature limit.
|Quadro K5000||30 °C||76 °C|
|Quadro K6000||32 °C||80-82 °C|
|FirePro W9100||40 °C||92-93 °C|
|FirePro W9000||34°C||78 °C|
Measuring the Sound Level
We measure each graphics card's noise levels with a calibrated high-quality studio microphone (supercardioid) 50 cm away from a position perpendicular to the middle of the board. This distance, as well as the strong cardioid microphone characteristic, represent a compromise between avoiding noise generated by the fan’s airflow and ambient noise that can never be completely eliminated. Our noise-dampening efforts certainly help minimize the latter, but they'll never be 100-percent successful.
As we've seen many times before, reference-class cards typically achieve their cooling performance at the cost of higher sound levels. High-end workstation cards, in particular, exhaust waste heat from their I/O panels to avoid affecting other platform components. However, this is enabled through the use of a radial fan, and our results show that they're quite noisy.
Here are the detailed sound level readings:
|Model||Idle||3D Workload, Open Lab Bench||3D Workload, Closed Case|
|Quadro K5000||30.8 dB(A)||37.7 dB(A)||37.1 dB(A)|
|Quadro K6000||30.8 dB(A)||42.7 dB(A)||41.2 dB(A)|
|FirePro W9100||33.5 dB(A)||51.3 dB(A)||49.8 dB(A)|
|FirePro W9000||33.2 dB(A)||55.4 dB(A)||52.7 dB(A)|