ASUS GeForce RTX 3080 12 GB STRIX OC Review - 20% more VRAM 47

ASUS GeForce RTX 3080 12 GB STRIX OC Review - 20% more VRAM

Efficiency & Clock Speeds »

Power Consumption

Our data acquisition system for graphics cards power consumption testing now runs at a higher sample rate, and automation capabilities have been expanded. With 40 samples per second, we're now collecting data much faster than before, four times as fast as NVIDIA's PCAT. Every single data point is recorded digitally—previously, we could only get averages and peaks.

Power Consumption Testing Details

All power consumption numbers reported on this page are "card only" values measured via the PCI-Express power connector(s) and PCI-Express bus slot. Everything is measured on the DC side, it's not the power consumption of the whole system. We conduct a physical measurement using professional lab equipment, the values are not software sensor readings, which are much less accurate.
  • Idle: Windows 10 sitting at the desktop (2560x1440) with all windows closed and drivers installed. The card is left to warm up in idle mode until power draw is stable.
  • Multi-monitor: Two monitors are connected to the tested card, and both use different display timings. One monitor runs 2560x1440 over DisplayPort, and the other monitor runs 1920x1080 over HDMI. The refresh rate is set to 60 Hz for both screens. Windows 10 is sitting at the desktop with all windows closed and drivers installed. The card is left to warm up in idle mode until power draw is stable. When using two identical monitors with the same timings and resolution, power consumption can be lower. When using high refresh rate monitors, power consumption can be higher than in this test.
  • Video Playback: We use VLC Media Player to watch a 4K 30 FPS video that's encoded with H.264 AVC at 64 Mbps bitrate, making it similar enough to many streaming services without adding a dependency on internet bandwidth. This codec has GPU-accelerated decoding on every modern GPU, so it not only tests GPU power management, but also efficiency of the video decoding hardware.
  • Gaming: Cyberpunk 2077 is running at 2560x1440 with Ultra settings and ray tracing disabled. We ensure the card is heated up properly, which ensures a steady-state result instead of short-term numbers that won't hold up in long-term usage.
  • Maximum: We use Furmark's Stability Test at 1920x1080, which results in very high no-game power consumption that can typically only be reached with stress-testing applications. All modern graphics cards have power limits, which are tested in this scenario. Our high-speed test equipment is able to capture power spikes that occur very quickly, before the power limiter on the graphics card can react.
  • V-Sync: If you don't need the highest framerate and want to conserve power, running at 60 FPS is a good option. In this test, we run Cyberpunk 2077 at 1920x1080, capped to 60 FPS. This test is also useful in testing a graphic card's ability to react to situations with only low power requirements. For graphics card that can't reach 60 FPS at 1080p, we report the power draw at the highest achievable frame rate.
  • Spikes: During all previous tests, we recorded the power draw and found the highest single reading, which is reported in this "Power Spikes" test. It provides additional insight into power supply requirements because large spikes can trigger various protections on some cheaper power supplies. A symptom of this is when your PC suddenly turns off when a game is starting, or during gameplay.



Power consumption is surprisingly high in even non-gaming states. I suspect the added RGB circuitry and upgraded VRM design play a role. I still don't think this is a dealbreaker as the difference between 10 W and 20 W idle isn't that much, around 30 kWh per year assuming 8 hours idle per day, so like 10 bucks in Europe, where power is expensive, which would make it less in most other nations.

Gaming power consumption of the ASUS RTX 3080 STRIX is quite high mostly because they've increased the power limit considerably. Still, almost 400 W is serious business, and the heat output will heat up your room during long gaming sessions. The cooler is totally adequate for this heat load. Still, overall energy efficiency is reduced and now comparable to the RTX 3090, which is still 10% worse than RTX 3080 and RTX 3080 Ti.

Minimum recommended PSU: 800 W

Graphics Card only Power Draw Idle
Graphics Card only Power Draw Multi-Monitor
Graphics Card only Power Draw Furmark
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Dec 21st, 2024 13:57 EST change timezone

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