Powercolor HD 7990 Devil 13 6 GB Review 141

Powercolor HD 7990 Devil 13 6 GB Review

Value & Conclusion »

Temperatures



After we fixed the mounting pressure of the cooler, the temperatures are quite decent. We heard from PowerColor that the typical load temperatures they've seen are 80°C, so our little modification improves temperatures by over 10°C!

GPU Temperature Comparison
IdleLoad
PowerColor HD 7990 Devil 1338°C / 37°C71°C / 65°C
GTX 69034°C / 35°C80°C / 81°C
HD 797045°C78°C
HD 7970 GHz40°C83°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.

Core
Clock
Memory
Clock
GPU Voltage
(measured)
Desktop300 MHz150 MHz0.85 V
Multi-Monitor500 MHz1375 MHz1.00 V
Blu-ray Playback501 MHz1375 MHz0.99 V
3D Load925 MHz1375 MHz1.17 V

CCC Overdrive Limits
Core1125 MHz
Memory1575 MHz
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