Brings back thoughts of my Athlon XP 1700+ starting to crap out at around the same frequency, though that required an enormous (for the time) heat sink, and was surrounded by hardware drawing an extra 100+ watts on top. I wonder which has better per-core IPC...
Has the life of the silicon been characterized under these overclocking scenarios? The BCM2711 is 28nm I believe, and it would be pretty reasonable to compare its life to similarly sized wafers of the same process node. (I don't have that data, sorry). If overclocking drops a 30 year+ Si to 10 years, maybe we don't care. If you run it hard in a cluster and some portion of them fail after 2 years, that might be pretty annoying.
So we can run it at lower power and without a fan?
CPU is not the be all and end all. My Pi4 was bought because of the USB3 and Gigabit eithernet, it made it a perfect low power smb/nfs/deluge/subversion server, and great for scripts to pull things from iplayer at 4am, digital radio puller, and now its going to have an SDR stick detecting 433mhz signals around the house, auto triggering lights and sending alarms to my phone.
None of this is CPU intensive. It's an IO octopus of mighty proportions, who need spe
First of all, The RasPi 400 is a rather different beast than the RasPi4. The 400 is a complete package, while the Pi4 on its own does not have a case or cooling or anything.
Regardless, a bit presumptuous of the OP to state such a thing categorically. Anything above spec is going to be "YMMV". My Pi4 can't go above 2GHz without locking up within a short amount of time, usually within an hour. Even at 2GHz I've had at least 2 lock-ups so even that isn't 100% safe. And I have heatsinks and active cooling.
Has the life of the silicon been characterized under these overclocking scenarios? The BCM2711 is 28nm I believe, and it would be pretty reasonable to compare its life to similarly sized wafers of the same process node. (I don't have that data, sorry). If overclocking drops a 30 year+ Si to 10 years, maybe we don't care. If you run it hard in a cluster and some portion of them fail after 2 years, that might be pretty annoying.
So we can run it at lower power and without a fan?
CPU is not the be all and end all. My Pi4 was bought because of the USB3 and Gigabit eithernet, it made it a perfect low power smb/nfs/deluge/subversion server, and great for scripts to pull things from iplayer at 4am, digital radio puller, and now its going to have an SDR stick detecting 433mhz signals around the house, auto triggering lights and sending alarms to my phone.
None of this is CPU intensive. It's an IO octopus of mighty proportions, who need spe
In my experience (with a 3A+), underclocking a Pi causes it to run hotter. Not joking. Never figured out why.
First of all, The RasPi 400 is a rather different beast than the RasPi4. The 400 is a complete package, while the Pi4 on its own does not have a case or cooling or anything.
Regardless, a bit presumptuous of the OP to state such a thing categorically. Anything above spec is going to be "YMMV". My Pi4 can't go above 2GHz without locking up within a short amount of time, usually within an hour. Even at 2GHz I've had at least 2 lock-ups so even that isn't 100% safe. And I have heatsinks and active cooling.