Intel Core i5-1345U vs Intel Core i7-10700 Comparison

The Intel Core i5-1345U and Intel Core i7-10700 represent two very different design philosophies from Intel: a modern, power-efficient mobile processor against a higher-power desktop part from an older generation. The benchmark data reveals a fascinating split, where the newer mobile chip dominates in single-threaded and encryption tasks, while the older desktop chip leverages its higher thread count and thermal headroom for sustained multi-core and memory-intensive workloads. This analysis will dissect the head-to-head results to determine which processor is the better choice for specific use cases, strictly based on the provided data.

Head-to-Head Benchmarks

The most striking victory for the Intel Core i5-1345U comes in `cinebench_cinebench_r15_singlecore`, where it scores 240 against the i7-10700's 155, a massive 54.8% advantage. This pattern of single-core supremacy continues across other tests: in `cinebench_cinebench_r23_singlecore`, the i5-1345U scores 1724 versus 1540, an 11.9% lead, and in `passmark_single_thread`, it achieves 3415 against 2891, an 18.1% edge. The i5-1345U also shows a commanding performance in `passmark_data_encryption`, scoring 10288 against the i7-10700's 5379—a staggering 91.3% delta. The data suggests the newer Raptor Lake architecture provides a substantial IPC (instructions per clock) improvement over the older Comet Lake design, making it exceptionally fast at tasks that rely on a single core's speed.

However, the Intel Core i7-10700 strikes back with equally decisive wins in multi-threaded and memory-bandwidth-intensive tasks. The largest margin is in `passmark_data_compression`, where the i7-10700 scores 252113 versus 164005, a 34.9% advantage. Similarly, in `passmark_extended_instructions`, the i7-10700 leads with 16160 against 9178, a 43.2% gap. The desktop chip also dominates in `passmark_random_string_sorting`, with a score of 31585 compared to 18888, a 40.2% difference. In the `cinebench_cinebench_r23_multicore` test, the tables turn decisively: the i7-10700 scores 10910 while the i5-1345U manages only 7724, giving the older chip a 29.2% lead. This indicates that while the i5-1345U has fewer threads (12 vs 16), the i7-10700's higher power envelope and additional cores allow it to sustain heavy multi-core workloads more effectively.

The middle ground shows a mix of results. In `cinebench_cinebench_r15_multicore`, the i5-1345U wins with 1311 against 1099 (19.3% delta), but this lead shrinks to just 7.9% in `cinebench_cinebench_r20_multicore` (4942 vs 4582). Interestingly, the i5-1345U also wins `passmark_physics` with 818 against 794, a narrow 3% margin, and the two processors tie exactly in `passmark_find_prime_numbers`, both scoring 47. In the broader `passmark` suite, the i7-10700 takes `passmark_integer_math` (62988 vs 52847, a 16.1% lead) and `passmark_floating_point_math` (38823 vs 35939, a 7.4% lead), while the i5-1345U wins `passmark_multithread` by 10.2% (14511 vs 16161? No, wait, the delta shows -10.2% for the i5, meaning the i7 wins. Correction: i7 wins `passmark_multithread`). This data shows that the i7-10700 is generally stronger in workloads that scale with raw core count and memory bandwidth, while the i5-1345U excels in tasks where single-core latency is the bottleneck.

The Verdict

Based strictly on the data, the Intel Core i5-1345U is the clear winner for users who prioritize single-threaded performance, encryption, and general responsiveness. Its 54.8% lead in Cinebench R15 single-core and 91.3% lead in data encryption are not marginal differences; they represent a generational leap in efficiency. The i5-1345U also wins 10 of the 17 head-to-head benchmark comparisons, including all the single-core tests and the `passmark_physics` test, making it the better choice for applications that are not fully optimized for many cores.

The Intel Core i7-10700, conversely, is the pick for sustained multi-core workloads and memory-heavy tasks. Its 29.2% lead in Cinebench R23 multi-core and 34.9% lead in data compression show that it can handle long-running, parallelized tasks like video rendering, data compression, or scientific simulations more effectively. The i7-10700 wins 7 benchmarks, but they are in areas where the i5-1345U cannot compete due to its lower thread count and power limits. The data implies that the i7-10700 is a workhorse for demanding desktop applications, while the i5-1345U is a highly capable mobile processor that punches above its weight class in everyday tasks.

FAQ

Q: Which processor has a higher single-core benchmark score?

A: The Intel Core i5-1345U is significantly faster in single-core tests. In Cinebench R23 single-core, it scores 1724 compared to the i7-10700's 1540, and in PassMark single-thread, it achieves 3415 versus 2891, an 18.1% advantage.

Q: Which processor is better for multi-threaded rendering?

A: The Intel Core i7-10700 is better for sustained multi-threaded rendering. In Cinebench R23 multi-core, the i7 scores 10910 while the i5-1345U scores 7724, giving the i7 a 29.2% lead.

Q: How do they compare in data compression tasks?

A: The Intel Core i7-10700 is far superior in data compression. It scores 252113 in the PassMark data compression test, while the i5-1345U only manages 164005, a 34.9% difference in favor of the i7.

Q: Is the newer i5-1345U always faster than the older i7-10700?

A: No, the i5-1345U wins 10 benchmarks, but the i7-10700 wins 7. The i5 dominates in single-core and encryption tasks, while the i7 leads in multi-core, math, and sorting workloads.

Q: Which CPU has a higher average benchmark score?

A: The i5-1345U has a slightly higher average benchmark score of 19411, compared to the i7-10700's 19145. However, both processors sit at the 73rd percentile in performance across all CPUs.

Q: Are these two processors comparable in overall performance?

A: Yes, the data shows they are very close in overall performance. The i5-1345U has an average score of 19411, which is 0.2% above the AMD Ryzen 5 7533HS and 0.9% above the Intel Core i7-8700K. The i7-10700's average score of 19145 is within 0.6% of the Intel Core i5-12400F, indicating they perform at a similar level.

Specification Differences

| Specification | Intel Core i5-1345U | Intel Core i7-10700 |

| :--- | :--- | :--- |

| Cores | 10 | 8 |

| Threads | 12 | 16 |

| Base Clock | 1600.00 MHz | 2.90 GHz |

| Boost Clock | 4.70 GHz | 4.80 GHz |

| TDP | 15 W | 65 W |

| Socket | Intel BGA 1744 | Intel Socket 1200 |

| Process Node | 10 nm | 14 nm |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 256 KB (per core) |

| L3 Cache | 12 MB (shared) | 16 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR4 |

| Memory Bandwidth | N/A (not listed) | 46.9 GB/s |

| PCIe | Gen 4, 8 Lanes (CPU only) | Gen 3, 16 Lanes (CPU only) |

| Integrated Graphics | Iris Xe Graphics 80EU | UHD Graphics 630 |

| Market Segment | Mobile | Desktop |

| Release Date | 2023-01-03 | 2020-04-29 |

| Launch MSRP | $309 | N/A (not listed) |

Architecture Differences

The architectural chasm between these two CPUs is vast, explaining their divergent benchmark results. The Intel Core i5-1345U is built on the Raptor Lake architecture using a 10 nm process node, whereas the Intel Core i7-10700 uses the older Comet Lake architecture on a 14 nm process. This process shrink allows the i5-1345U to pack 10 cores and 12 threads into a 15W TDP, while the i7-10700 requires 65W to run its 8 cores and 16 threads. The i5-1345U features a larger L1 cache (80 KB per core) and a much larger L2 cache (1.25 MB per core), which likely contributes to its significant single-core performance lead. In contrast, the i7-10700 has a larger shared L3 cache (16 MB vs 12 MB) and a higher base clock (2.9 GHz vs 1.6 GHz), which helps it sustain multi-threaded workloads.

The i5-1345U's modern design also includes support for DDR5 memory and PCIe Gen 4, while the i7-10700 is limited to DDR4 and PCIe Gen 3. The integrated graphics differ significantly as well: the i5-1345U comes with the more capable Iris Xe Graphics 80EU, while the i7-10700 is paired with the basic UHD Graphics 630. The i5-1345U is designed for the mobile BGA 1744 socket, while the i7-10700 is a desktop part for the Socket 1200. These architectural differences underscore that the i5-1345U is a newer, more efficient design, while the i7-10700 relies on raw power and a higher thread count from an older process.

Where Each One Wins

Intel Core i5-1345U: The data shows this chip is the winner for tasks that are latency-sensitive or rely on a single core. Its 54.8% lead in Cinebench R15 single-core and 18.1% lead in PassMark single-thread make it ideal for everyday desktop applications, web browsing, and office productivity where responsiveness is key. The i5-1345U's 91.3% advantage in data encryption also makes it the superior choice for security-related tasks like VPNs or full-disk encryption. Its 10 benchmark wins, including all single-core tests and `passmark_physics`, suggest it excels in scenarios where the CPU's speed per core is more important than the total number of cores. Furthermore, its mobile design and 15W TDP make it the only viable option for laptops and ultrabooks.

Intel Core i7-10700: This desktop processor wins in scenarios that demand sustained multi-core performance and high memory bandwidth. Its 29.2% lead in Cinebench R23 multi-core and 34.9% lead in data compression show it is better suited for video editing, 3D rendering, and file archiving. The i7-10700's 43.2% advantage in extended instructions and 40.2% lead in random string sorting indicate it is the stronger choice for scientific computing, data analysis, and complex simulations. With a 16.1% lead in integer math and a 7.4% lead in floating-point math, the i7-10700 is the clear winner for compilation, financial modeling, and other mathematically intensive tasks. The `passmark_multithread` score of 16161 versus 14511 (a 10.2% delta) confirms that the i7-10700 is the better pick for heavily parallelized software, provided the user has a desktop chassis and is not constrained by power consumption.