Hi, I would think at 95°C you've hit the CPU's throttling temperature, my i7's is about there...
That is the CPU does less and less work until the temp stabilises at that point, I think it does this by dropping the multiplier or adding "blank" cycles, ie cycles when it does no processing and therefore generates a lot less heat. You can check this with TMonitor.
I've used a Hyper TX3 a number of times as a good performance, low cost heatsink. Pair it with an Arctic Cooling F9 PWM fan, which is also dirt cheap, and it's great! The fan will idle down to ~500rpm and the examples I've used are very smooth and super quiet at that level, while providing enough cooling for low and mid range CPUs without any need to increase fan speed much. In fact I found that with a pair of F9 PWMs a Hyper TX3 could cool my i7 2600k (at stock), the screen shot I have shows 67°C core temp with the fans at a very quiet 700rpm.
I wouldn't use it passive, a very quiet fan is all you need and will keep the temps easily in check at 400~700rpm. Possibly mounted on back of the heatsink to blow hot air straight out the back of the case.