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- Jan 14, 2019
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System Name | My second and third PCs are Intel + Nvidia |
---|---|
Processor | AMD Ryzen 7 7800X3D @ 45 W TDP Eco Mode |
Motherboard | MSi Pro B650M-A Wifi |
Cooling | be quiet! Shadow Rock LP |
Memory | 2x 24 GB Corsair Vengeance DDR5-4800 |
Video Card(s) | PowerColor Reaper Radeon RX 9070 XT |
Storage | 2 TB Corsair MP600 GS, 4 TB Seagate Barracuda |
Display(s) | Dell S3422DWG 34" 1440 UW 144 Hz |
Case | Corsair Crystal 280X |
Audio Device(s) | Logitech Z333 2.1 speakers, AKG Y50 headphones |
Power Supply | 750 W Seasonic Prime GX |
Mouse | Logitech MX Master 2S |
Keyboard | Logitech G413 SE |
Software | Bazzite (Fedora Linux) KDE Plasma |
Yet, forums are loud of people claiming how cool new Ryzens run (even though they don't) while reviews can't get over Intel's power consumption figures, effectively spreading misbelief that Intel CPUs run hot. The internet is a weird place.Yes, you're correct.
AMD run hotter on some chips because they have the higher heat density - 80mm2 vs 200mm2+
I mean... that alone explains a lot, heat wise.
On top of that, they measure temps different. Intel likes to report a more averaged temp, while AMD reports the peak temp - and far more often.
So if both chips measured 60C with a spike to 70C for 5ms, the intel wouldnt report that spike (Zen2 and 3 report every 1ms.... waaaaaaaay more often than intel - i cant find much, but estimates seem to be between 15ms and 30ms)

In context of the 12900K, just because it eats a lot of power when unlocked, we can't be sure that it'll also run hot - though the new 10 nm process (and increased density) suggest that it might. We'll see.