Sapphire HD 7970 Toxic 6 GB 48

Sapphire HD 7970 Toxic 6 GB Review

Value & Conclusion »


Temperatures are comfortably low. I would have gladly accepted a bit higher for less fan noise.

GPU Temperature Comparison
Sapphire HD 7970 Toxic36°C71°C
Sapphire HD 7970 Toxic Boost38°C69°C
Gigabyte HD 7970 Super OC46°C85°C
HD 7970 GHz Edition40°C83°C
MSI HD 7970 Lightning39°C76°C
AMD HD 797045°C78°C
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.

Normal BIOS:
GPU Voltage
Desktop300 MHz150 MHz0.87 V
Multi-Monitor500 MHz1500 MHz0.98 V
Blu-ray Playback501 MHz1500 MHz0.97 V
3D Load1100 MHz1500 MHz1.29 V
Boost BIOS:
GPU Voltage
Desktop300 MHz150 MHz0.86 V
Multi-Monitor500 MHz1600 MHz0.97 V
Blu-ray Playback501 MHz1600 MHz0.97 V
3D Load1200 MHz1600 MHz1.35 V
CCC Overdrive Limits
Core1500 MHz
Memory2000 MHz
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