Core i5-1245U vs Core i5-9400H
Aggregate performance score
i5-1245U outperforms i5-9400H by an impressive 69% based on our aggregate benchmark results.
Primary details
Comparing Core i5-9400H and Core i5-1245U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1161 | 844 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i5 | Intel Alder Lake-M |
| Architecture codename | Coffee Lake-H (2018−2019) | Alder Lake-U (2022) |
| Release date | 23 April 2019 (5 years ago) | 4 January 2022 (2 years ago) |
Detailed specifications
Core i5-9400H and Core i5-1245U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 10 (Deca-Core) |
| Threads | 8 | 12 |
| Base clock speed | no data | 1.6 GHz |
| Boost clock speed | 2.5 GHz | 4.4 GHz |
| Bus support | 4 × 8 GT/s | no data |
| L1 cache | 256 KB | 928 KB |
| L2 cache | 1 MB | 9.5 MB |
| L3 cache | 8 MB | 12 MB |
| Chip lithography | 14 nm | 10 nm |
| Die size | 126 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i5-9400H and Core i5-1245U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 (Uniprocessor) | 1 |
| Socket | FCBGA1440 | BGA1744 |
| Power consumption (TDP) | 45 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-9400H and Core i5-1245U. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | no data | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | + | no data |
| TSX | + | + |
| SIPP | + | no data |
Security technologies
Core i5-9400H and Core i5-1245U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-9400H and Core i5-1245U are enumerated here.
| AMD-V | + | no data |
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-9400H and Core i5-1245U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4, DDR5 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 42.671 GB/s | no data |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel UHD Graphics 630 | Intel Iris Xe Graphics G7 80EUs |
Peripherals
Specifications and connection of peripherals supported by Core i5-9400H and Core i5-1245U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | 16 | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i5-1245U outperforms Core i5-9400H by 69% based on our aggregate benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i5-1245U outperforms Core i5-9400H by 70% in Passmark.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Benchmark coverage: 17%
Core i5-1245U outperforms Core i5-9400H by 72% in Cinebench 11.5 64-bit multi-core.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Benchmark coverage: 15%
Core i5-1245U outperforms Core i5-9400H by 59% in Cinebench 15 64-bit multi-core.
Pros & cons summary
| Performance score | 5.11 | 8.66 |
| Integrated graphics card | 3.09 | 7.43 |
| Recency | 23 April 2019 | 4 January 2022 |
| Physical cores | 4 | 10 |
| Threads | 8 | 12 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 45 Watt | 15 Watt |
i5-1245U has a 69.5% higher aggregate performance score, 140.5% faster integrated GPU, an age advantage of 2 years, 150% more physical cores and 50% more threads, a 40% more advanced lithography process, and 200% lower power consumption.
The Core i5-1245U is our recommended choice as it beats the Core i5-9400H in performance tests.
Should you still have questions on choice between Core i5-9400H and Core i5-1245U, ask them in Comments section, and we shall answer.
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