i5-1345U vs i7-9800X
Aggregate performance score
Core i7-9800X outperforms Core i5-1345U by a significant 21% based on our aggregate benchmark results.
Primary details
Comparing Core i7-9800X and Core i5-1345U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 693 | 812 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 6.48 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i7 | Intel Raptor Lake-U |
| Power efficiency | 6.53 | 59.39 |
| Architecture codename | Skylake (server) (2017−2018) | Raptor Lake-U (2023) |
| Release date | 19 October 2018 (6 years ago) | 4 January 2023 (1 year ago) |
| Launch price (MSRP) | $589 | $309 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-9800X and Core i5-1345U 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 | 8 (Octa-Core) | 10 (Deca-Core) |
| Threads | 16 | 12 |
| Base clock speed | 3.8 GHz | 1.6 GHz |
| Boost clock speed | 4.5 GHz | 4.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 38 | no data |
| L1 cache | 64 KB (per core) | 80K (per core) |
| L2 cache | 1 MB (per core) | 1.25 MB (per core) |
| L3 cache | 16.5 MB (shared) | 12 MB (shared) |
| Chip lithography | 14 nm | 10 nm |
| Maximum core temperature | 95 °C | 100 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-9800X and Core i5-1345U 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 | FCLGA2066 | Intel BGA 1744 |
| Power consumption (TDP) | 165 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-9800X and Core i5-1345U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | + |
| Turbo Boost Max 3.0 | + | no data |
Security technologies
Core i7-9800X and Core i5-1345U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-9800X and Core i5-1345U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-9800X and Core i5-1345U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4, DDR5 Dual-channel |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel Iris Xe Graphics G7 80EUs ( - 1250 MHz) |
Peripherals
Specifications and connection of peripherals supported by Core i7-9800X and Core i5-1345U.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 44 | 8 |
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.
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.
Pros & cons summary
| Performance score | 11.39 | 9.42 |
| Recency | 19 October 2018 | 4 January 2023 |
| Physical cores | 8 | 10 |
| Threads | 16 | 12 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 165 Watt | 15 Watt |
i7-9800X has a 20.9% higher aggregate performance score, and 33.3% more threads.
i5-1345U, on the other hand, has an age advantage of 4 years, 25% more physical cores, a 40% more advanced lithography process, and 1000% lower power consumption.
The Core i7-9800X is our recommended choice as it beats the Core i5-1345U in performance tests.
Note that Core i7-9800X is a desktop processor while Core i5-1345U is a notebook one.
Should you still have questions on choice between Core i7-9800X and Core i5-1345U, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
