Temperatures
Temperatures are very low. I think less noise and slightly higher temps would have been better.
GPU Temperature Comparison |
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| Idle | Load |
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ASUS HD 7970 Matrix | 39°C | 70°C |
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MSI HD 7970 Lightning | 39°C | 76°C |
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GIGABYTE HD 7970 SOC | 46°C | 85°C |
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PowerColor HD 7990 Devil 13 | 38°C | 71°C |
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Sapphire HD 7970 Toxic | 36°C | 71°C |
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AMD HD 7970 GHz | 40°C | 83°C |
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AMD HD 7970 | 45°C | 78°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 that we measured. We performed the measurement on the pins of a coil or a 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 | 500 MHz | 1650 MHz | 0.95 V |
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Blu-ray Playback | 501 MHz | 1650 MHz | 1.25 V |
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3D Load | 1100 MHz | 1650 MHz | 1.26 V |
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CCC Overdrive Limits |
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Core | 1500 MHz |
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Memory | 2000 MHz |
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