Temperatures
Temperatures are fantastic, especially when you consider the super-high frequency this card is running at. Unfortunately, fan noise is not so great. I wish HIS had hiked temperatures up a few °C for a lower noise output.
GPU Temperature Comparison |
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| Idle | Load |
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HIS HD 7970 X Turbo | 34°C | 68°C |
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ASUS HD 7970 Matrix | 39°C | 70°C |
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Sapphire HD 7970 Toxic | 36°C | 71°C |
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Gigabyte HD 7970 SOC | 46°C | 85°C |
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MSI HD 7970 Lightning | 39°C | 76°C |
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AMD HD 7970 GHz | 40°C | 83°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 | 0.98 V |
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Multi-Monitor | 500 MHz | 1500 MHz | 1.00 V |
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Blu-ray Playback | 501 MHz | 1500 MHz | 0.99 V |
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3D Load | 1180 MHz | 1500 MHz | 1.25 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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