My only disagreement is that clamp meters are just rubbish. I've got several of them, they're are incredibly inconsistent. I've asked others what I was doing wrong and the feedback I get it not to waste my time with them unless I'm using them on high voltage applications where the error is lower. I can get a 150% ( guestimate! ) disparity just by the angle at which the wires go through them. I rarely bother with them now and rely on good old multi meters.
Otherwise, I like your reasoning.
An accuracy of +/- a few amps is sufficient to see if any wires have major imbalances, or if anything is significantly exceeding specs. I can reliably get this out of a clamp.
Trying to guess current from temperature has huge errors and there is no good way to measure resistance or voltage drop across individual wires
in situ with an multimeter when they all connect to the same power plane, without some kind of in-line sensor.
An inline measurement is surely more accurate, but unless it's permanent, it's not very useful for detecting issues that would result from incorrect insertion/mating cycles, as the interface is going to be disturbed when one disconnects the sensor and reconnects the power to the device. And even permanent ones are another pair of interfaces, and thus potential points of failure, themselves.
All this for an overpriced video card
I'd argue that all non-secondhand video cards are overpriced in the current market.
A high-end video card that does what I want it to do is still a better value than an arbitrarily less expensive card that cannot. No matter how much I've spent, I've spent the least amount practical to meet my particular goals...goals which may be very different from someone else's goals.
Note: The advice to measure current.. Or to start soldering on your overpriced card... Wow just wow
Measuring current is fairly non-invasive.
Adding a power connector that will literally cut peak current loads at the connector in half, for less than 1% of the price of the card, is a cheap and effective modification for someone with soldering experience.
None of this should ever be required and neither of these mitigations can reasonably be expected from most end-users, but they're certainly available to me. While I think the issue is rather overblown (probably less than 1% of these cards are going to fail due to issues with power connectors), it costs me nothing to take some measurements. I also quickly void the warranties on most of my parts anyway; spending a trivial extra bit of effort to mitigate connector issues is not far out of my way and is further insurance against failure.
The alternative is to not have a GPU, or refrain from settings, that can pull so much power, or rely on questionable warranty service and spotty supply to fix any issues that may crop up. I want that extra performance and I'm willing to take matters into my own hands.
Unless there is real new feature that matters to me or an important safety fix is introduced - I never update drivers, because why? I follow the rule: never change a running, secure and well performing system.
I follow the same general rule of thumb, which, in practice, leads me to updating to every new version of GPU driver that comes out, at least for my newest GPUs. There are always bugs and security flaws in need of patching, and new features relevant to my uses are almost as common.
For my 3000 and 4000 series parts, the 576.15 hotfix driver is pretty good. Fixes prior instabilities of the 575 branch, and the 575 branch has meaningful performance advantages (even on these generations) when it comes to DLSS. However, these drivers are not bug free (they
never are)...in this case, it would appear the efforts to reduce idle power consumption has resulted in the return of an interrupt latency spike during power state transistions. NVIDIA has fixed and broken this every couple of years or so for the last twenty years. It's not a big deal (it mostly just obfuscates other measurments), and doesn't seem to be high priority, but it's annoying enough for me to be ready to try whatever comes out next, on the off chance they have a fix.