Thanks for the review.
Any help on what then to choose between i7-1255U vs i7-1260P? Really a difference in performance?

Purchased I5 Gen10 laptop and had it for 4 days, it's going back. A simple Google Meet call results in fan screaming and keyboard overheating. I am coming off an X1 Gen7 which I loved, replacing the Gen 10 with a Gen9, hopefully a good move.

Fully Agreed. I felt that Lenovo had to do this because Alder Lake U-Series 15W (or 9W for that matter) was not available at the time and they wanted a new processor for the new gen 10 model. I would have been happier with a Ryzen 5800U, but then they can't sell their thunderbolt docks. I would be fine with a USB 3 dock though as would most others. Ryzen rarely makes it into premium non-gaming models. It is likley that they will add they U-Series processors when they are available (they aren't in any laptops now really), as they advertised in many of their X1 Carbon Gen 10 marketing. While the peak single core performance of the U-Series may be slightly higher due largely to inefficiently high clockspeeds, multi-core performance will remain well below (about 50%) that of Ryzen. Alder Lake U9/U15 may therefore near double battery life over P28 and be snappier with MS Office and web browsing than Ryzen.

I owned a 1240P laptop for about one day, then returned it. It was constantly overheating.
All I had to do, to make it overheat was run Wordpad.

I don't mind that for a slim device that the performance drops off over time - I feel that is somewhat expected.

However I feel that this is a tuning issue as the X1 Yoga Gen7 drops down to around 1270 for it's score in R15 whereas the Carbon Gen 10 drops all the way down to 680 and in fact is still dropping when the graph finishes.

We had a similar thing with the Carbon Gen 9 as well with various BIOS released affecting performance and maybe this is still a bit of a beta version - disappointing but perhaps by the time the general public can get the device it will be resolved.

I'm also keen to see what happens with the 1280P in the Gen 10 and if it is similar to the 6 core 10710U in similarly thin devices where the performance wasn't really any better than the 4 core 10610U in almost every situation.

Quote from: _MT_ on June 28, 2022, 10:26:31G9 doesn't have UP3 processors. It has UP4 processors and I believe they use 28 W cTDP.

Of course, I wrote it the other way around (I struggle with the higher is lower nomenclature). It has UP3, not UP4. Contrary to what you claim: "An impressive difference compared with the four core Tiger Lake UP4 CPUs of the X1 Carbon G9."

Quote from: Ayoh on June 28, 2022, 01:34:08Typical intel CPU performance, high power draw, poor efficiency. Looks great on paper, crap in practice

Actually, it seems largely self-inflicted. Lenovo simply reduced the long-term power limit. And look at the power draw in Witcher. G9 draws 52 W, G10 37 W. Some of it might be down to the display. Unfortunately, notebookcheck didn't bother with full suite of tests on the version with lower resolution (so, we don't have CPU performance, energy consumption or temperatures for that unit). I seem to recall this isn't the first time Lenovo decided to reduce power limits without changing chassis. Last time, they later released a BIOS that enabled higher power limits and performance returned to where it was expected. Also, the G9 unit that posted those numbers did have, as I recall, some thermal issues and it wasn't behaving that well. Perhaps not the best baseline to look at.

G9 doesn't have UP3 processors. It has UP4 processors and I believe they use 28 W cTDP. So, nothing has changed. They continue to use 28 W processors, just Intel decided to separate them. Isn't it what you actually called for? That mixing those 25-28 W cTDP processors with 15 W processors is misleading for consumers. And now you complain that manufacturers use them. Yes, many laptops with U-series processors used the 28 W configuration. So, it makes sense that they now use the P-series.

Typical intel CPU performance, high power draw, poor efficiency. Looks great on paper, crap in practice