Temperatures
Temperatures are super low thanks to the mighty TwinFrozr III cooler, which is a good thing, as NVIDIA's dynamic overclocking mechanism takes temperature into account and lowers maximum boost clocks by 13 MHz each 10°C.
GPU Temperature Comparison |
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| Idle | Load |
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MSI GTX 680 TwinFrozr III | 30°C | 64°C |
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ZOTAC GTX 680 AMP! | 34°C | 75°C |
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Palit GTX 680 JetStream | 33°C | 78°C |
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AMD HD 7970 | 45°C | 78°C |
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NVIDIA GTX 680 | 45°C | 85°C |
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ASUS GTX 680 DirectCU II | 33°C | 70°C |
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AMD HD 7970 | 45°C | 78°C |
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Important: GPU temperature will vary depending on clocks, voltage,
cooler design and production variances. This table just serves to provide
a list of typical temperatures for similar cards, reached 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 that we measured. We measure on the pins of a coil or capacitor near the GPU voltage regulator.
| Core Clock | Memory Clock | GPU Voltage (measured) |
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Desktop | 324 MHz | 162 MHz | 0.99 V |
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Multi-Monitor | 324 MHz | 162 MHz | 0.99 V |
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Blu-ray Playback | 324 MHz | 162 MHz | 0.99 V |
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3D Load | 1008 - 1175 MHz | 1508 MHz | 1.035-1.175 V |
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The card uses NVIDIA's dynamic overclocking mechanism, which means it will dynamically adjust clock and voltage based on render load, temperature and other factors.
For the graph below, we recorded all GPU clock, GPU voltage combinations of our benchmarking suite for the 1920x1200 resolution. The plotted points have transparency, so they can add up to indicate more often used values. A light color means the clock/voltage combination is rarely used, a dark color means it's active a lot.