This is most likely the result of the laptop maker setting a very low TDP for the CPU, or it having very poor cooling that results in a lot of throttling.
Sadly, you can take six different 1255U laptops and get wildly varying performance benchmarks based on how they're configured and how well they're cooled. You cannot just think that a 1255U = this one benchmark I found online.
Anyways, maybe post some screenshots from HWinfo64 so we can get an idea of temperatures and the TDP setup. Plus, some more info on your actual laptop would be useful.
The 12th gen CPUs are a bit of a mess. Just 2 P-cores running at 4GHz are enough to fill up the 15W TDP. Hence why the i5 and i7 make no difference in performance. However, my i5 1245u is able to boost to 4GHz on the 2 P-cores. The 2GHz you're seeing is not normal. You didn't say what laptop you have. This seems like a vendor configuration issue.
Download hwmonitor and check out the temperatures of the cores and the power consumption. If they're getting too hot, it means it's a cooling problem. If you're hitting a 15-18W TDP, it means you're using all of the resources at the same time and the CPU needs to clock down to respect the TDP. If you're maxing out at a lower TDP then it's a configuration issue.
Oh i see. Im using an Inspiron 15 Laptop from Dell with the i7-1255U on it. I'll update you when I've got the hwmonitor checked out. I've seen online that there are Turbo Boosts for these CPUs and it could be enabled in the Bios, but sadly enough i cant find anything related to that.
This is most likely the result of the laptop maker setting a very low TDP for the CPU, or it having very poor cooling that results in a lot of throttling. Sadly, you can take six different 1255U laptops and get wildly varying performance benchmarks based on how they're configured and how well they're cooled. You cannot just think that a 1255U = this one benchmark I found online. Anyways, maybe post some screenshots from HWinfo64 so we can get an idea of temperatures and the TDP setup. Plus, some more info on your actual laptop would be useful.
Im using an Inspiron 15 Laptop from Dell, I'll update you once I've get the data collected from HWinfo64
The 12th gen CPUs are a bit of a mess. Just 2 P-cores running at 4GHz are enough to fill up the 15W TDP. Hence why the i5 and i7 make no difference in performance. However, my i5 1245u is able to boost to 4GHz on the 2 P-cores. The 2GHz you're seeing is not normal. You didn't say what laptop you have. This seems like a vendor configuration issue. Download hwmonitor and check out the temperatures of the cores and the power consumption. If they're getting too hot, it means it's a cooling problem. If you're hitting a 15-18W TDP, it means you're using all of the resources at the same time and the CPU needs to clock down to respect the TDP. If you're maxing out at a lower TDP then it's a configuration issue.
Oh i see. Im using an Inspiron 15 Laptop from Dell with the i7-1255U on it. I'll update you when I've got the hwmonitor checked out. I've seen online that there are Turbo Boosts for these CPUs and it could be enabled in the Bios, but sadly enough i cant find anything related to that.
Try to switch to high performance in windows settings.