Temperatures
Idle temperatures are great, combined with the low noise this is a winning combination.
Load temps look to be well optimized and still leave some headroom for heavy overclocking and overvolting. Given these temps, it looks like the super-noisy fan is just a result of the increased power draw caused by the high clock speeds. MSI simply had no choice other than to make the fan run so fast, to keep the card at acceptable temperature levels.
GPU Temperature Comparison |
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| Idle | Load |
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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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AMD HD 7950 | 43°C | 75°C |
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MSI HD 7950 TwinFrozr III | 32°C | 59°C |
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GeForce GTX 680 | 45°C | 85°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 | 0.86 V |
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Multi-Monitor | 500 MHz | 1400 MHz | 1.18 V |
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Blu-ray Playback | 500 MHz | 1375 MHz | 0.96 V |
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3D Load | 1070 MHz | 1400 MHz | 1.15 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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