Power consumption in factory state as summary
The almost 13 watts in idle are ok. With a second monitor and a different resolution, however, this quickly becomes 34 watts and more. By the way, we can see very nicely that the full TBP of 200 watts is never really exhausted and only the Torture test even reaches or approaches the frame here. Normally, it is always less. The Palit GeForce RTX 4070 Dual 12GB is similarly efficient as the Founders Edition with almost the same power limit. Thus, you need the same electrical power for a similar performance.
Load distribution between the PCIe slot and the PCIe sockets
Palit uses the PCIe slot especially for gaming, and we know the reason: the spatially routed voltage converter. But you are still below the maximum allowed 5.5 amps with the flowing currents even at the maximum power limit. I wrote it already: with one more phase down there you would be in the limit range, but not above it, as long as no power limit is increased. The PCB design is designed so that an 8-pin socket works with the 200-Watt BIOSes. And that’s exactly why the mainboard slot (PEG) has to be used so intensively. With the 12VHPWR, if you were to develop that exclusively, you wouldn’t have that problem. And there is no room for a second 8-pin connector. Besides, it is completely sufficient for the MSRP card.
Rough 20 ms intervals
Let’s first have a look at the flowing currents. We measured in coarse 20-ms intervals, that is about 50 times per second, to simulate the load at the supervisor chip of the power supplies (shutdown). We see that even short load peaks are capped at 18 A at the latest. but a real limitation looks different. But it can be done that way.
Nevertheless, we still have to take a look at the voltages, or the product of voltage and current flow. I already wrote that I measured here at different power supply connections, even if at the end on the board of the graphics card all connections meet again somehow. What we can now see here as much clearer fluctuations and peaks is due to the partially a little bit overvolting power supply and thus the voltage and not the currents. This is due to technical reasons, but it’s not a big deal. However, we can also see that the few peaks at around 290 watts are not caused by the flowing current (graphics card), but actually result from the power supply! This is also due to the topology and especially the rather puny input filter with only one coil on the single rail.
It hardly looks different in the torture test. The OC variant regulates a bit more hectically.
If you now add the voltage again, then you see a stronger ripple, which again results from the somewhat jittery operating voltage. However, it has to be said in the power supply’s honor that this affects all current products from all manufacturers and can hardly be avoided.
- 1 - Introduction, technical data and technology
- 2 - Test system in igor'sLAB MIFCOM-PC
- 3 - Teardown: PCB, components and cooler
- 4 - Gaming performance
- 5 - Power consumption and load balancing
- 6 - Transients and PSU recommendation
- 7 - Temperatures, clock rates and thermal imagin
- 8 - Fan curves and noise
- 9 - Summary and conclusion
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