And while one of them showed significant thermal improvements after installing Thermalright’s LGA1700 contact frame, the other motherboard showed no difference in temperatures whatsoever! Check out our review of the contact frame for more information.Feel confident that you are getting the absolute best price for the product you are ordering I tested Raptor Lake CPUs in two motherboards. Not all motherboards are affected equally by this issue. If your motherboard is affected by bending, your thermal results will be worse than those shown below. In order to prevent bending from impacting our cooling results, we’ve installed Thermalright’s LGA 1700 contact frame into our testing rig. A system's motherboard can also influence this, especially if it suffers from bending, which results in poor cooler contact with the CPU. Note there are many factors other than the CPU cooler that can influence your cooling performance, including the case you use and the fans installed in it. We expect most coolers to run effectively silently at 125W. We’ll provide noise level measurements recorded using a PSPL25 Sound Meter for all three power levels tested to compare how much noise each cooler makes in different scenarios. For both of these results, we’ll show traditional delta over ambient temperature results. We’ll also show results at 125W for those who prefer whisper-quiet cooling, at the cost of some performance. In addition to testing Cinebench without power limits enforced, we’ll also be showing results when the CPU’s power consumption is limited to a more reasonable 200W. The motherboard’s default fan curve is used for the CPU Cooler’s fans. ![]() I’ll be testing Intel’s i9-13900K CPU using Asus’ TUF Gaming Z690 Gaming Plus WIFI motherboard and Cooler Master’s HAF 700 Berserker computer case, with case fans limited to 35% speeds. We’ll compare performance instead by looking at total benchmark scores and clock speeds maintained. With Raptor Lake’s 13900K, not a single cooler tested has been able to keep the CPU under TJ max in this test – because as we pointed out, the chip is designed to dial up performance and power until it richest that thermal result. Most liquid coolers and all air coolers I’ve tested “failed” that test because the CPU reached TJ max in this scenario. Some coolers were able to pass Cinebench R23 multicore testing with Intel’s 12th Gen i9-12900K when power limits were removed (although only the strongest models were able to pass that test). The increased cooling challenges posed by Raptor Lake mean that we’ve had to change some of the ways we test coolers. This feature works in a way that actively seeks high temperatures: If the chip sees that it is running underneath the 100-degree C threshold, it will increase its performance and power consumption until it reaches the safe 100 C limit, thus sustaining higher clocks (and providing better performance) for longer periods. This allows multi-core loads to operate at up to 5.5ghz if the necessary amount of thermal dissipation is there. Similar behavior has been standard in laptops for years due to cooling limitations in tight spaces.įurthermore, Intel’s Core i9-13900K supports Adaptive Boost Technology (ABT) which allows Core i9 processors to dynamically boost to higher all-core frequencies based on available thermal headroom and electrical conditions. Modern AMD and Intel CPUs are designed to run fairly hot without any problems – up to 95 degrees Celsius for AMD Ryzen 7000 CPUs, and up to 100 C for Intel’s Core i9-13900K. While in the past a CPU hitting its peak temperature was cause for concern, enthusiasts are going to have to learn to accept high temperatures as “normal” while running demanding workloads with Raptor Lake and Ryzen 7000 CPUs. ![]() While it was fairly easy with previous generations of CPUs for coolers to keep the flagship i9 processor well under TJ max (the maximum temperature a CPU can sustain without throttling) in tough workloads, this is no longer realistically possible on current generation CPUs (and the 13900K especially) without extreme cooling (or enabling power limits). ![]() (Image credit: Tom's Hardware) Testing Methodology
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