Power consumption and compliance with standards
The maximum values of a very demanding scene are not the whole truth, because the power consumption of fast cards is actually very resolution-dependent. However, the new GeForce RTX 3050 now plays in the league of small cards, which gives the all-clear because the RTX 3050 is also fully utilized in Full HD. If you now add up the power consumption in Full HD, which I measured in all games over the entire runtime, then everything is back to 130 watts for the TBP. First of all, the respective average over all resolutions, games and graphics cards:
Thus, there are no big secrets in terms of power consumption, because what NVIDIA specifies as TBP for the GeForce RTX 3050 is also largely adhered to and even undercut during gaming. With about 11 watts at idle, it’s within a usable range. It’s certainly also due to the RGB of the board partner card. The partial load ranges are still adequately realized, which could also be due to the slightly increased clock rate. However, the card then reaches around 142.6 watts under real full load in the stress test and full heating, which is almost 3 watts more than predicted and specified in the specs.
Which brings us to the specifications, because in the end it is clearly regulated by firmware what is possible as well as the maximum and minimum values. A maximum of 150 watts power limit is allowed for the board partner card instead of the 140 watts ex-factory (reference 130 watts), which can be accessed with the appropriate software, but is also somewhat pointless since it hardly changes anything in terms of performance.
Let’s now look at the load of the motherboard slot, which is specified by the PCI SIG as 5.5 amps. This results in a maximum power of 66 watts at 12 volts. You can see very clearly that this limit is undercut very significantly under full load with 2.4 to 2.6 A, even if you exhaust the maximum power limit. The fact that the 8-pin connector is only routed to three and the PEG to one phase of the GPU is thus completely sufficient and the balancing is also completely okay.
The slightly more detailed curve for gaming and torture looks like this, although the intervals with the long 20 ms are still very granular.
Transients and power supply recommendation
As I already proved in detail in my basic article “The battle of graphics card vs. power supply – power consumption and load peaks demystified”, higher loads in the millisecond range do exist for a short time, which can already lead to inexplicable shutdowns in unfavorably designed or improperly equipped power supplies. The TBP (Typical Board Power) measured by the graphics card manufacturer or the reviewers is not really helpful for a stable system design.
Peaks with intervals between 1 and 10 ms can lead to shutdowns in very fast-response protection circuits (OPP, OCP), especially in multi-rail power supplies, although the average power consumption is still within the norm. For this card, I would therefore calculate at least 180 to 200 watts as a graphics card load proportionate to the system’s total power consumption on the secondary side</x-1> in order to have enough reserves for the worst case scenario. A short excerpt with higher resolution now shows us the 20-ms measurements (10 μS intervals), as I run them automatically to determine the value:
- 1 - Intro, Unboxing, Data and Test System
- 2 - Teardown, PCB Analysis and Cooler Details
- 3 - Gaming Performance Full-HD
- 4 - Gaming Performance WQHD
- 5 - Details: Frames per Second (Curve)
- 6 - Details: Percentiles (Curve)
- 7 - Details: Frame Times (Curve)
- 8 - Details: Frame Times (Bar)
- 9 - Details: Variances (Bar)
- 10 - Power Draw of GPU & CPU and Gaming Efficiency
- 11 - Power Consumption, Transients and PSU Recommendation
- 12 - Temperatures, Clock Rate and Infrared Tests
- 13 - Fan Speed, Noise and Frequency Analysis
- 14 - Summary and Conclusion
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