Temperatures
Temperatures are super low, which suggests that there is some additional potential to reduce fan noise.
GPU Temperature Comparison |
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| Idle | Load |
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MSI GTX 660 GAMING | 28°C | 62°C |
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MSI GTX 660 HAWK | 28°C | 63°C |
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MSI GTX 660 TF III | 30°C | 59°C |
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ASUS GTX 660 DC II TOP | 31°C | 66°C |
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ZOTAC GTX 660 | 34°C | 69°C |
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Gigabyte GTX 660 OC | 32°C | 60°C |
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HD 7870 | 29°C | 69°C |
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Important: GPU temperature will vary depending on clock speed, voltage settings,
cooler design, and production variances. This table just serves to provide
a list of typical temperatures for similar cards determined during TPU review.
Clock Profiles
Modern graphics cards have several clock profiles that are selected to balance power draw and performance requirements.
The following table lists the clock settings for important performance scenarios and the GPU voltage we measured. We performed the measurement on the pins of a coil or a capacitor near the GPU voltage regulator.
| GPU Clock | Memory Clock | GPU Voltage (measured) |
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Desktop | 324 MHz | 162 MHz | 0.85 V |
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Multi-Monitor | 324 MHz | 162 MHz | 0.85 V |
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Blu-ray Playback | 324 MHz | 162 MHz | 0.85 V |
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3D Load | 1006 - 1137 MHz | 1502 MHz | 1.030 - 1.160 V |
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The card uses NVIDIA's dynamic overclocking mechanism. The mechanism will dynamically adjust clock and voltage based on render load, temperature, and other factors.
For the graph below, we recorded all GPU clock and GPU voltage combinations of our 1920x1080 resolution benchmarking suite. The plotted points are transparent, which allows them to add up to indicate more often used values. A light color means the clock/voltage combination is rarely used and a dark color means it's active a lot.