Intel Core 7 350 vs Intel Core i5-14400 Comparison

Head-to-Head Benchmarks

The benchmark data paints a decisive picture in favor of the Intel Core i5-14400, which wins 14 of the 17 recorded comparisons. The Core 7 350 secures only 3 wins, all in single-threaded or specialized workloads, but the magnitude of the i5-14400's victories is substantial across most categories.

The largest single gap appears in Cinebench R23 multi-core, where the i5-14400 scores 21,315 versus the Core 7 350's 8,030. That is a 62.3% advantage, the biggest delta in the entire head-to-head set. The multi-core story repeats throughout Cinebench: R15 multi-core shows 2,148 versus 1,220 (43.2% behind), and R20 multi-core shows 8,952 versus 5,373 (40% behind). These results reflect the i5-14400's higher core and thread counts, which allow it to sustain much higher throughput in rendering workloads.

Integer math shows the second-largest gap. The i5-14400 scores 82,017 in PassMark integer math, while the Core 7 350 manages 33,734. That is a 58.9% deficit for the Core 7 350. Data compression follows a similar pattern: 314,995 for the i5-14400 versus 143,123, a 54.6% difference. Random string sorting is also heavily lopsided, with the i5-14400 at 32,346 versus 17,238, a 46.7% gap.

The i5-14400 also wins in floating-point math (61,549 versus 42,809, 30.4% ahead), multi-threaded PassMark (25,080 versus 15,170, 39.5% ahead), and data encryption (16,731 versus 10,933, 34.7% ahead). Extended instructions follow with 19,816 versus 12,045, a 39.2% margin. Even physics simulation, a workload that often favors lower-latency designs, goes to the i5-14400 by 16% (1,396 versus 1,173).

Single-core Cinebench results are closer but still favor the i5-14400. In R15 single-core, the i5-14400 leads 303 to 292, a mere 3.6% margin. In R20 single-core, the gap widens to 40% (1,263 versus 758). R23 single-core shows 3,009 versus 2,046, a 32% advantage for the i5-14400.

The Core 7 350's wins are narrower but notable. In PassMark single-thread, it scores 4,100 versus 3,741, a 9.6% advantage. That same score appears twice in the data (both "single_thread" and "singlethread" entries), confirming consistency. The other win is in PassMark find prime numbers, where the Core 7 350 scores 107 versus 80, a 33.8% margin. This suggests the newer Wildcat Lake architecture has an edge in certain integer-heavy single-threaded algorithms, even though it loses decisively in aggregate integer work.

The average benchmark score reinforces the overall picture: the i5-14400 averages 32,115, placing it in the 82nd percentile of all CPUs, while the Core 7 350 averages 17,779, at the 71st percentile. The i5-14400's nearest rivals include the Intel Core i7-12800H (0% delta) and the Core i7-13705H (0.1% higher), which places it in strong company for mobile-class parts. The Core 7 350's nearest rivals include the AMD Ryzen 5 3600XT (0.6% lower) and the Core 5 120U (0.7% lower), indicating it sits at a lower performance tier overall.

Architecture Differences

The two processors come from different Intel generations and target different market segments. The Core 7 350 is a mobile part built on the Wildcat Lake architecture, using a 3 nm process node. It features 6 cores and 6 threads, meaning every core is a single-threaded physical core with no hyper-threading. The i5-14400 is a desktop part based on Raptor Lake-R, built on a 10 nm node, with 10 cores and 16 threads. The extra 4 threads come from hyper-threading on the performance cores, giving it a significant advantage in parallel workloads.

Cache hierarchies differ substantially. The Core 7 350 allocates 192 KB of L1 per core and 2.5 MB of L2 per core, with 6 MB of shared L3. The i5-14400 uses 80 KB of L1 per core and 1.25 MB of L2 per core, but shares 20 MB of L3. The larger L3 pool on the i5-14400 helps feed its higher core count. The Core 7 350's larger per-core L2 is notable but does not compensate for the core count disparity in multi-threaded tests.

Memory support also differs. The Core 7 350 supports DDR5 and LPDDR5X with a single-channel memory bus, delivering 59.7 GB/s of bandwidth. The i5-14400 supports both DDR4 and DDR5 with a dual-channel bus, which doubles memory throughput potential. The single-channel limitation on the Core 7 350 is a clear bottleneck for memory-sensitive workloads, even if the recorded bandwidth figure is respectable for a mobile chip.

PCIe connectivity is another differentiator. The Core 7 350 offers Gen 4 with 6 lanes (CPU only), while the i5-14400 provides Gen 5 with 16 lanes (CPU only). This gives the desktop part substantially more bandwidth for expansion cards and NVMe storage.

Integrated graphics differ as well. The Core 7 350 uses Intel Xe3 Graphics with 2 Xe cores, a newer GPU design. The i5-14400 uses UHD Graphics 730, an older but still functional integrated solution. The Core 7 350's GPU is likely more capable for media tasks, though the database does not include GPU benchmarks for direct comparison.

ECC memory support is present on the i5-14400 but absent on the Core 7 350. This makes the desktop part suitable for error-sensitive workstation tasks. The socket types also differ: the Core 7 350 uses Intel BGA 1516 (mobile, soldered), while the i5-14400 uses Intel Socket 1700 (desktop, replaceable). The Core 7 350 has a 15 W TDP, reflecting its mobile focus, while the i5-14400 has a 65 W TDP, which is higher but still modest for a desktop chip.

FAQ

Q: Why does the Intel Core i5-14400 win so many multi-core benchmarks?

A: The i5-14400 has 10 cores and 16 threads versus 6 cores and 6 threads for the Core 7 350. This 4-core, 10-thread advantage directly translates to higher scores in multi-threaded tests like Cinebench R23 multi-core (21,315 versus 8,030) and PassMark multi-thread (25,080 versus 15,170).

Q: Where does the Intel Core 7 350 actually outperform the i5-14400?

A: The Core 7 350 wins PassMark single-thread (4,100 versus 3,741, a 9.6% margin) and PassMark find prime numbers (107 versus 80, a 33.8% margin). These are the only two head-to-head categories where it leads.

Q: What is the performance gap in single-core Cinebench?

A: In Cinebench R15 single-core, the i5-14400 leads by just 3.6% (303 versus 292). But in R20 and R23, the i5-14400 leads by 40% (1,263 versus 758) and 32% (3,009 versus 2,046) respectively. The R15 gap is small, while the newer Cinebench versions show a larger difference.

Q: Does the Core 7 350's 3 nm process give it an efficiency advantage?

A: The database shows the Core 7 350 has a 15 W TDP versus 65 W for the i5-14400. The 3 nm node is the listed process for the Core 7 350, while the i5-14400 uses 10 nm. This suggests a significant power efficiency difference, though the performance per watt is not directly computed in the provided data.

Q: Which part supports DDR4 memory?

A: Only the i5-14400 supports DDR4. The Core 7 350 supports DDR5 and LPDDR5X exclusively. The i5-14400 also uses a dual-channel memory bus, while the Core 7 350 is single-channel.

Q: How do the average benchmark scores compare to similar CPUs?

A: The i5-14400's average score of 32,115 places it near the Core i7-12800H (delta 0%) and Core i7-13705H (delta 0.1%). The Core 7 350's average of 17,779 is closest to the Core 5 221TE (0.5% lower) and AMD Ryzen 5 3600XT (0.6% lower).

Specification Differences

| Specification | Intel Core 7 350 | Intel Core i5-14400 |

|---|---|---|

| Cores | 6 | 10 |

| Threads | 6 | 16 |

| Base clock | 1.50 GHz | 2.50 GHz |

| Boost clock | 4.80 GHz | 4.70 GHz |

| TDP | 15 W | 65 W |

| Socket | Intel BGA 1516 | Intel Socket 1700 |

| Codename | Wildcat Lake | Raptor Lake-R |

| Process node | 3 nm | 10 nm |

| Die size | Not recorded | 215 mm² |

| L1 cache (per core) | 192 KB | 80 KB |

| L2 cache (per core) | 2.5 MB | 1.25 MB |

| L3 cache (shared) | 6 MB | 20 MB |

| Memory support | DDR5, LPDDR5X | DDR4, DDR5 |

| Memory bus | Single-channel | Dual-channel |

| Memory bandwidth | 59.7 GB/s | Not recorded |

| ECC memory | No | Yes |

| PCIe | Gen 4, 6 lanes | Gen 5, 16 lanes |

| Integrated graphics | Intel Xe3 Graphics (2 Xe) | UHD Graphics 730 |

| Market segment | Mobile | Desktop |

| Release date | 2026-04-15 | 2024-01-07 |

| Launch MSRP | $469 | $221 |

Where Each One Wins

The Intel Core i5-14400 wins across nearly every multi-threaded and aggregate workload category. Its 10 cores and 16 threads dominate rendering (Cinebench R15, R20, R23 multi-core), integer math, floating-point math, data compression, encryption, and random string sorting. The 20 MB of shared L3 cache and dual-channel memory bus support high-bandwidth operations. It is the clear choice for desktop workloads that scale with core count, including video encoding, 3D rendering, compilation, and heavy multitasking. Its Gen 5 PCIe with 16 lanes also supports modern GPUs and high-speed storage.

The Intel Core 7 350 wins in PassMark single-thread and find prime numbers. The single-thread score of 4,100 (9.6% ahead) and the prime number score of 107 (33.8% ahead) indicate strong per-core integer performance, likely from the newer Wildcat Lake architecture and 3 nm process. This makes it suitable for lightly threaded applications that rely on single-core speed, such as certain legacy software, scripting, or interactive workloads. Its 15 W TDP and mobile BGA socket also make it the appropriate choice for thin-and-light laptops where power draw is a primary constraint. The integrated Xe3 Graphics with 2 Xe cores may also benefit media-focused mobile devices.

The Verdict

The recorded data shows a clear performance hierarchy. The Intel Core i5-14400 is the faster processor in 14 of 17 head-to-head benchmarks, with an average score of 32,115 versus 17,779 for the Core 7 350. The i5-14400 also ranks higher in the overall percentile (82nd versus 71st). For desktop users who need multi-threaded throughput, the i5-14400 is the stronger option across Cinebench, PassMark math, compression, and physics tests.

The Core 7 350 is not without merit. Its single-thread PassMark score of 4,100 beats the i5-14400's 3,741, and its find prime numbers result is 33.8% higher. These wins, combined with a 15 W TDP and a 3 nm process, position it as a mobile-focused part that prioritizes efficiency and per-core speed over raw multi-core muscle. The 6 MB of shared L3 and single-channel memory bus limit its aggregate performance, but for a laptop CPU, those constraints are acceptable.

From a market perspective, the i5-14400 is a desktop chip with a launch MSRP of $221, while the Core 7 350 is a mobile chip with a launch MSRP of $469. The data does not include any efficiency-per-watt comparisons, so a direct cost-performance analysis is not possible from the recorded measurements. However, the benchmark scores clearly favor the i5-14400 in every multi-threaded category, and its single-core Cinebench results are also higher in R20 and R23.

For anyone choosing between these two, the decision hinges on form factor. The Core 7 350 is soldered to a mobile board (BGA 1516) and cannot be used in a desktop. The i5-14400 is a socketed desktop part (LGA 1700) with replaceable mounting. If the workload involves heavy parallel processing, the i5-14400 is the unequivocal choice. If the system must be a low-power mobile device, the Core 7 350 offers competitive single-thread performance and a much lower TDP, but the overall throughput is substantially lower. The data supports the i5-14400 as the higher-performing processor, with the Core 7 350 carving out a niche in single-threaded integer tasks and power-constrained environments.