I also think it's impossible, but considering the AIDA64 information in that person's screenshot - like data from multiple temperature sensors - combined with the comments made by "ground" below, I'm now semi-skeptical and feel there might be a sliver of possibility. If there truly exists an air-cooled i7-920 chip running at 1.28V 5GHz in this world, that would be nothing short of a miracle. Based on my experience, most first-gen Core i7 9xx series can only reach 5GHz between 1.45-1.65V. As for i7 8xx series, I haven't thoroughly researched them, but I've encountered a crappy i7-860 that could only manage 4.4GHz in wPrime even with 1.55V water cooling. Regardless, only time will tell about this legendary 1.28V air-cooled 5GHz i7-920.🫠