EVGA GTX 970 SC ACX 4 GB Review 55

EVGA GTX 970 SC ACX 4 GB Review

Value & Conclusion »

Temperatures



Temperatures are good, well below NVIDIA's 80°C temperature limit. Clocks will be reduced slightly, although never below the base clock, if the card gets any hotter than the limit. Our graph further down the page details the card's clock distribution.

However, given the relatively high noise levels I would have preferred the card to run slightly warmer, which should reduce noise because the fan wouldn't have to run as fast.

GPU Temperature Comparison
IdleLoad
EVGA GTX 970 SC ACX35°C73°C
ASUS GTX 970 STRIX OC47°C71°C
Palit GTX 970 JetStream49°C78°C
NVIDIA GTX 98036°C80°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 we measured. We performed the measurement on the pins of a coil or a capacitor near the GPU voltage regulator.

GPU
Clock
Memory
Clock
GPU Voltage
(measured)
Desktop135 MHz162 MHz0.86 V
Multi-Monitor135 MHz162 MHz0.86 V
Blu-ray Playback135 MHz162 MHz0.86 V
3D Load1164 - 1354 MHz1753 MHz1.025 - 1.218 V
The card uses NVIDIA's dynamic overclocking mechanism, GPU Boost 2.0. It will dynamically adjust clock and voltage based on render load, temperature, and other factors.

For the graph below, we recorded all GPU clock and GPU voltage combinations of our 1920x1080 resolution benchmarking suite. The plotted points are transparent, which allows them to add up to indicate more often used values. A light color means the clock/voltage combination is rarely used and a dark color means it's active a lot.

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