[Comparison] Intel Core i5-1240P vs Core i5-1235U – Both can work fine for you, depending on what you do
Today we have a very interesting comparison between two Alder Lake Core i5 processors, one from the P-series and one from the U-series. How much difference is there, and can the extra TDP be of help to the bigger chip? Keep in mind that the Core i5-1240P also has two extra performance cores, which will be of great help when it’s time for benchmarks.
Here is our Top Laptop CPU Ranking, which has the best laptop CPUs in a list, based on performance.
Today we are comparing the Intel Core i5-1240P against the Core i5-1235U.
You can find more information about both CPUs here: Intel Core i5-1240P / Core i5-1235U
Specs table
Intel Core i5-1240P | Intel Core i5-1235U | |
---|---|---|
Architecture | Alder Lake-P | Alder Lake-U |
Cores / Threads | 12/16 | 10/12 |
Clock Speeds – Base/Boost | 1.20 – 4.40GHz | 0.90 – 4.40GHz |
Cache | 12MB | 12MB |
Lithography | 10nm | 10nm |
TDP | 15W | 15W |
Memory type | DDR5-4800, LPDDR5-5200, DDR4-3200, LPDDR4x-4267 | DDR5-4800, LPDDR5-5200, DDR4-3200, LPDDR4x-4267 |
Integrated GPU | Intel Iris Xe Graphics G7 (80EU) | Intel Iris Xe Graphics G7 (80EU) |
CPU benchmarks
While the Core i5-1240P shows great improvements in 3D Rendering, scoring 33% higher, the laptops are very close in Photoshop, finishing the benchmark at essentially the same time.
Results are from the Cinebench R23 CPU test (the higher the score, the better)
GPU benchmarks
While the laptops share the same iGPU, the one inside the P-series processor runs at a higher power limit, due to the CPU having a higher power limit itself. The iGPU inside the Core i5-1240P scores 9% higher in 3DMark Fire Strike and Unigine Superposition.
The results are from 3DMark Time Spy (Graphics). Higher is better.
Results are from 3DMark Fire Strike (Graphics) benchmark (higher the score, the better)
The results are from 3DMark Wild Life Extreme Unlimited. Higher is better.
Results are from the Unigine Superposition benchmark (higher the score, the better)
Gaming tests


CS:GO | HD 1080p, Low (Check settings) | HD 1080p, Medium (Check settings) | HD 1080p, MAX (Check settings) |
---|---|---|---|
Intel Iris Xe Graphics G7 (80EU) – Core i5-1240P | 144 fps (+7%) | 92 fps (+2%) | 64 fps (+5%) |
Intel Iris Xe Graphics G7 (80EU) – Core i5-1235U | 134 fps | 90 fps | 61 fps |
DOTA 2 | HD 1080p, Low (Check settings) | HD 1080p, Normal (Check settings) | HD 1080p, High (Check settings) |
---|---|---|---|
Intel Iris Xe Graphics G7 (80EU) – Core i5-1240P | 160 fps (+13%) | 106 fps (+12%) | 61 fps (+9%) |
Intel Iris Xe Graphics G7 (80EU) – Core i5-1235U | 141 fps | 95 fps | 56 fps |
Conclusion
The two processors perform well, with the Core i5-1240P being the obvious choice between the two if your work mainly consists of 3D Rendering. However, the CPUs are dead even in Photoshop, so you’ll be fine with both, while the U-series CPU should supposedly deliver longer battery life.