Also, and I think I failed to mention this earlier, pretty sure nobody else mentioned it either, but you want to run "Sensors only" when you run HWinfo. Uncheck the "Summary" option. There is nothing in there of value anyhow really. Everything of value can be found in the "Sensors" window.
If there is a sensor of any kind on your system, whether it is onboard the motherboard, or the graphics card, or a whatever, HWinfo is the most likely of pretty much any utility out there to be able to pick it up and broadcast it's telemetry to the utility. VRMs, core temps, package temps, memory speed and timings, virtual memory usage, distance to TJ max (Thermal margin), graphics and GPU sensors, SSD and HDD data, it's all there. If another utility can access that data then HWinfo likely can too.
The only reason really to use something else, like Afterburner, is because HWinfo can't do what that program or programs like it can do in terms of making changes to fan behavior or memory/GPU frequency, etc. It is for monitoring only, but for monitoring, it is the wonka golden ticket.
I agree, in this case, with what 128k says regarding stuttering, as I said earlier. Overclocking, whether the CPU or graphics card, is OFTEN the cause. When it's not, it's usually related to storage or memory access problems. Micro stutters might be more related to some kind of V-sync setting, but there are, as mentioned, a variety of possible reasons why both kinds of stuttering can occur. The only way to really find it, is to set things to stock behavior to see if it still occurs and then if it doesn't start putting things back one at a time until it happens again.