Intel Core i7-14700F vs Intel Core Ultra 7 366H Comparison

Head-to-Head Benchmarks

The benchmark data is unambiguous: the Intel Core i7-14700F wins 15 of the 17 recorded head-to-head comparisons, and most of those wins are by substantial margins. The largest single victory comes in PassMark integer math, where the i7-14700F scores 155,808 against 83,695 for the Core Ultra 7 366H, a delta of 86.2%. That is nearly double the throughput for integer-heavy workloads, a decisive gap that reflects the desktop part's higher core count and thread count.

Data compression tells a similar story. The i7-14700F delivers 505,885 in PassMark data compression versus 327,455 for the Ultra 7 366H, a 54.5% advantage. Random string sorting follows at 40.4% ahead, with scores of 55,918 and 39,814 respectively. These are workloads that scale with parallel resources, and the desktop processor has more of them.

The Cinebench suite shows a consistent pattern across all six tests. In Cinebench R23 multicore, the i7-14700F scores 35,122 against 28,477, a 23.3% lead. The same 23.3% delta appears in every Cinebench test: R15 multicore (3540 vs 2870), R15 singlecore (499 vs 405), R20 multicore (14751 vs 11960), R20 singlecore (2082 vs 1688), and R23 singlecore (4958 vs 4020). The uniformity of that 23.3% margin across both single-core and multi-core Cinebench runs suggests the advantage is largely architectural and clock-driven rather than scaling-dependent.

PassMark multithread shows a 23.6% lead for the i7-14700F (41,317 vs 33,429), closely matching the Cinebench deltas. Data encryption is closer at 16.6% (30,144 vs 25,845), while extended instructions narrow to 6.2% (28,564 vs 26,901). Floating point math is tighter still at 3.3% (107,005 vs 103,615), and single-thread performance in PassMark sits at just 5.3% (4,257 vs 4,043).

The Core Ultra 7 366H wins exactly two tests. In PassMark find prime numbers, it scores 326 against 176, a 46% advantage that flips the expected direction entirely. In PassMark physics, it scores 2,880 versus 2,455, a 14.8% lead. Both are notable outliers in an otherwise one-sided comparison, and they indicate that the mobile chip's architecture handles certain specific instruction patterns more efficiently despite its lower overall throughput.

Architecture Differences

The two processors come from different Intel design generations and target entirely different market segments. The i7-14700F is a Raptor Lake-R desktop part built on Intel's 10 nm process, while the Core Ultra 7 366H is a Panther Lake-H mobile part on a 3 nm node. The process node gap is significant: 10 nm versus 3 nm, which explains how the mobile chip achieves its performance within a much lower power envelope.

Core counts differ sharply. The i7-14700F has 20 cores and 28 threads, while the Ultra 7 366H has 16 cores and 16 threads. The desktop part implements hyper-threading, and the mobile part does not, which is why the thread counts diverge so widely despite a smaller core-count gap. The i7-14700F also has a higher base clock of 2.10 GHz and a higher boost clock of 5.40 GHz, compared to 2.00 GHz and 4.80 GHz for the Ultra 7 366H.

Cache hierarchies are structured differently. The i7-14700F uses 80 KB of L1 per core, 2 MB of L2 per core, and 33 MB of shared L3. The Ultra 7 366H has 192 KB of L1 per core, 2.5 MB of L2 per core, and only 18 MB of shared L3. The mobile chip has more per-core L1 and L2, but the desktop chip has nearly twice the total L3 capacity, a meaningful advantage for workloads with large working sets.

Memory support diverges as well. The i7-14700F supports both DDR4 and DDR5, while the Ultra 7 366H supports DDR5 and LPDDR5X. The mobile part lists a memory bandwidth of 115.2 GB/s, a figure not recorded for the desktop chip. ECC memory is supported on the i7-14700F but not on the Ultra 7 366H. The desktop part has no integrated graphics, whereas the Ultra 7 366H includes Intel Xe3 Graphics. PCIe lanes also differ: 16 Gen 5 lanes on the desktop chip versus 12 Gen 5 lanes on the mobile chip.

Power and packaging tell the segment story. The i7-14700F has a 65 W TDP and uses Intel Socket 1700, while the Ultra 7 366H has a 25 W TDP and uses Intel BGA 2540, a soldered mobile package. The die size for the desktop part is 257 mm²; no die size is recorded for the mobile part. The i7-14700F carries a launch MSRP of $359; no launch MSRP is recorded for the Ultra 7 366H. Neither processor has an unlocked multiplier.

Where Each One Wins

The i7-14700F is the clear choice for parallel compute. Its 28 threads and 33 MB of L3 cache drive wins in integer math, data compression, string sorting, and every Cinebench multi-core test. The 86.2% margin in integer math and 54.5% margin in data compression are the kind of results that matter for compilation, data processing, and heavy multitasking. The desktop chip also holds the single-core advantage across both Cinebench and PassMark, so it is not merely a multi-threaded specialist.

The Core Ultra 7 366H wins in two narrow but interesting categories. PassMark find prime numbers shows a 46% advantage, and PassMark physics shows a 14.8% advantage. These results suggest the Panther Lake architecture executes certain algorithmic patterns more efficiently, possibly due to its newer process node and larger per-core L1 and L2 caches. The mobile chip also operates at 25 W TDP, which is less than half the desktop part's 65 W TDP, making it suitable for systems where power and cooling are constrained.

The average benchmark scores reinforce the overall gap. The i7-14700F has an average benchmark score of 53,620 and sits at the 91st percentile of all CPUs. The Ultra 7 366H has an average of 41,263 and sits at the 87th percentile. The nearest rivals in the database place the desktop part alongside the Intel Xeon 6505P (delta -0.2%), Intel Xeon Phi 7290 (delta 0.3%), AMD Ryzen 9 7900X (delta 0.6%), and AMD EPYC 7313P (delta 0.8%). The mobile part sits alongside the Intel Core Ultra 7 356H (delta 0.1%), AMD Ryzen AI 5 PRO 440 (delta 0.1%), AMD Ryzen 9 5900X (delta -0.3%), and Intel Core Ultra X7 358H (delta 0.7%).

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i7-14700F has 20 cores and 28 threads. The Intel Core Ultra 7 366H has 16 cores and 16 threads.

Q: How large is the multi-core performance gap in Cinebench R23?

A: The i7-14700F scores 35,122 in Cinebench R23 multicore, which is 23.3% ahead of the Ultra 7 366H's 28,477.

Q: Does the Core Ultra 7 366H win any benchmarks?

A: Yes. It wins PassMark find prime numbers (326 vs 176, a 46% lead) and PassMark physics (2,880 vs 2,455, a 14.8% lead).

Q: What are the process node differences?

A: The i7-14700F is built on Intel's 10 nm process. The Core Ultra 7 366H is built on a 3 nm process.

Q: Do both processors support ECC memory?

A: No. The i7-14700F supports ECC memory, while the Ultra 7 366H does not.

Q: Which processor has integrated graphics?

A: The Ultra 7 366H includes Intel Xe3 Graphics. The i7-14700F has no integrated graphics.

The Verdict

The data points to a straightforward conclusion. The Intel Core i7-14700F is the stronger processor in almost every measured category, with 15 wins out of 17 head-to-head tests and an average benchmark score of 53,620 versus 41,263 for the Ultra 7 366H. Its advantages in integer math, data compression, and Cinebench multi-core tests make it the better fit for desktop workloads that demand high parallel throughput. The 23.3% lead across all Cinebench tests, both single-core and multi-core, shows that the desktop part is not just faster in aggregate but faster per thread as well.

The Core Ultra 7 366H should be selected for systems where the 25 W TDP and integrated Intel Xe3 Graphics are decisive factors. Its wins in prime number finding and physics, along with its 3 nm process node and 115.2 GB/s memory bandwidth, show that the Panther Lake architecture has specific strengths. But the recorded data cannot place it ahead of the i7-14700F in overall performance, and its average benchmark score places it in the 87th percentile versus the 91st percentile for the desktop chip.

For a desktop build with Socket 1700, DDR4 or DDR5 support, and ECC memory capability, the i7-14700F is the data-backed pick. For a mobile system with a 25 W power budget and integrated graphics, the Ultra 7 366H is the processor the benchmarks support.

Specification Differences

| Specification | Intel Core i7-14700F | Intel Core Ultra 7 366H |

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

| Series | Core 14th Gen | Core Ultra Series 3 |

| Cores | 20 | 16 |

| Threads | 28 | 16 |

| Base Clock | 2.10 GHz | 2.00 GHz |

| Boost Clock | 5.40 GHz | 4.80 GHz |

| TDP | 65 W | 25 W |

| Socket | Intel Socket 1700 | Intel BGA 2540 |

| Architecture | Raptor Lake | Panther Lake |

| Codename | Raptor Lake-R | Panther Lake |

| Process Node | 10 nm | 3 nm |

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

| L2 Cache | 2 MB (per core) | 2.5 MB (per core) |

| L3 Cache | 33 MB (shared) | 18 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5, LPDDR5X |

| Memory Bus | Dual-channel | Dual-channel |

| Memory Bandwidth | Not recorded | 115.2 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 5, 12 Lanes (CPU only) |

| Integrated Graphics | N/A | Intel Xe3 Graphics |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-01-07 | 2026-01-04 |

| Launch MSRP | $359 | Not recorded |

| Multiplier Unlocked | No | No |

| Average Benchmark Score | 53,620 | 41,263 |

| Percentile vs All CPUs | 91 | 87 |