To answer the question of the poster who asked "do you perceive a difference"...
The answer is yes for me... I web browse a lot and can feel it there, with youtube videos I feel it in how fast I can fast forward through a video with the keyboard arrow keys, (something I do a lot). Lastly I run some retro games, and without the speedups some of the ones that are on the edge of play-ability without the speedups show massive improvement with.
I also have a couple systems that run on the stock clock of 2400 and I don't miss it that much when I'm using those systems.
something else I've done that really helps... I've enabled many of the "Other" speedups that the raspberry pi folks have worked on in addition to overclocking... the overall result is transformative... (I've applied all those patches to my systems that are running at 2400 as well)...
My daily driver these days is a 16 gig pi I bought... I had to slow it down from 2900 to 2800 because an LLM run I ran crashed, which was a good sign I had it dialed up too high, after lowering it, the llm ran fine... I've had no other issues...
A list of my speedups applied...
1. the new ram timings, (you can get that going just by updating to the latest eeprom version)
2. the NUMA improvement by setting SDRAM_BANKLOW=1 (on a pi 5).... that's also an eeprom setting to change
3. the standard overclock stuff
over_voltage_delta=50000
arm_freq=2800
gpu_freq=933
I never had much luck overclocking the gpu until I made a somewhat obvious observation... the default clock for the gpu is 800 which is 1/3 of 2400... if you overclock the cpu to 2800, then you can pretty safely take the gpu to 933, or if 2900 then 966 so on and so forth, so long as you keep the ratio in tact (it makes a big difference, I was never able to get gpu overclock to work at all before I started doing this).
my geekbench scores have single threaded at like 990 and multithreaded at something like 2400... this is way better than what you would get with overclocking alone, (and remember it's only a 2800 overclock)...
I have observed that aside from instability overclocking past a certain point yields diminishing returns... One of the ways I've been calibrating it is to put the pi under heavy load and seeing what happens to the temperature... I like a happy medium where my cooling doesn't have to work too hard even under moderate loads.
Hope any of this is helpful to somebody.
The answer is yes for me... I web browse a lot and can feel it there, with youtube videos I feel it in how fast I can fast forward through a video with the keyboard arrow keys, (something I do a lot). Lastly I run some retro games, and without the speedups some of the ones that are on the edge of play-ability without the speedups show massive improvement with.
I also have a couple systems that run on the stock clock of 2400 and I don't miss it that much when I'm using those systems.
something else I've done that really helps... I've enabled many of the "Other" speedups that the raspberry pi folks have worked on in addition to overclocking... the overall result is transformative... (I've applied all those patches to my systems that are running at 2400 as well)...
My daily driver these days is a 16 gig pi I bought... I had to slow it down from 2900 to 2800 because an LLM run I ran crashed, which was a good sign I had it dialed up too high, after lowering it, the llm ran fine... I've had no other issues...
A list of my speedups applied...
1. the new ram timings, (you can get that going just by updating to the latest eeprom version)
2. the NUMA improvement by setting SDRAM_BANKLOW=1 (on a pi 5).... that's also an eeprom setting to change
3. the standard overclock stuff
over_voltage_delta=50000
arm_freq=2800
gpu_freq=933
I never had much luck overclocking the gpu until I made a somewhat obvious observation... the default clock for the gpu is 800 which is 1/3 of 2400... if you overclock the cpu to 2800, then you can pretty safely take the gpu to 933, or if 2900 then 966 so on and so forth, so long as you keep the ratio in tact (it makes a big difference, I was never able to get gpu overclock to work at all before I started doing this).
my geekbench scores have single threaded at like 990 and multithreaded at something like 2400... this is way better than what you would get with overclocking alone, (and remember it's only a 2800 overclock)...
I have observed that aside from instability overclocking past a certain point yields diminishing returns... One of the ways I've been calibrating it is to put the pi under heavy load and seeing what happens to the temperature... I like a happy medium where my cooling doesn't have to work too hard even under moderate loads.
Hope any of this is helpful to somebody.
Statistics: Posted by pfharlock — Wed Feb 26, 2025 11:49 am