Temperatures
GPU Temperature Comparison |
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| Idle | Load |
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VTX3D HD 7970 X-Edition | 39°C | 75°C |
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MSI HD 7970 Lightning | 39°C | 76°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 | 300 MHz | 150 MHz | 0.85 V |
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Multi-Monitor | 501 MHz | 1425 MHz | 0.95 V |
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Blu-ray Playback | 501 MHz | 1425 MHz | 0.95 V |
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3D Load | 1050 MHz | 1425 MHz | 1.03 V |
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CCC Overdrive Limits |
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Core | 1300 MHz |
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Memory | 1600 MHz |
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