Intel Core i5-12600KF vs Intel Core Ultra 5 125H Comparison

The Intel Core Ultra 5 125H and Intel Core i5-12600KF represent two distinct design philosophies from the same manufacturer: one is a power-efficient mobile processor built on a newer node, while the other is a high-power desktop part with a focus on raw throughput. Benchmark data shows a decisive performance hierarchy, with the desktop chip winning every single head-to-head comparison in this dataset. The Core Ultra 5 125H, however, counters with architectural innovations and integrated graphics, making this a comparison of capability versus efficiency, rather than a simple spec-sheet shootout.

FAQ

Q: Which processor is faster in multi-threaded workloads?

A: The Intel Core i5-12600KF is significantly faster. In Cinebench R23 multi-core, it scores 23391 points compared to the Core Ultra 5 125H's 12804.5 points, a 45.3% advantage. Similarly, in PassMark's multithread test, the i5-12600KF scores 27575 versus 21100, a 23.5% lead.

Q: Is the Core Ultra 5 125H competitive in single-threaded performance?

A: The data indicates it is not. The i5-12600KF wins the Cinebench R23 single-core test with a score of 3302 against the Ultra 5's 1647.5, a 50.1% difference. The PassMark single-thread test shows a similar gap, with scores of 3925 and 3399 respectively, a 13.4% deficit for the Ultra 5.

Q: What is the primary market segment for each processor?

A: The Intel Core Ultra 5 125H is designed for the Mobile segment, while the Intel Core i5-12600KF is a Desktop processor. This is reflected in their sockets (Intel BGA 2049 for the mobile chip vs. Intel Socket 1700 for the desktop chip) and their TDP ratings of 28W and 125W, respectively.

Q: Does the Core Ultra 5 125H have integrated graphics?

A: Yes, the Core Ultra 5 125H features Arc Xe-LPG 96EU integrated graphics. In contrast, the Intel Core i5-12600KF does not have any integrated graphics (the "F" suffix typically denotes this).

Q: How do these processors compare in memory and interface support?

A: The desktop i5-12600KF supports both DDR4 and DDR5 memory, while the mobile Ultra 5 125H supports DDR5, with its bandwidth dependent on the motherboard. The Ultra 5 125H supports PCIe Gen 5, whereas the i5-12600KF supports PCIe Gen 4 with 20 lanes from the CPU.

Q: Are there any benchmarks where the Core Ultra 5 125H wins?

A: Based on the provided head-to-head data, the Intel Core i5-12600KF wins all 17 benchmark comparisons. The Core Ultra 5 125H records zero wins in this dataset.

Architecture Differences

The two processors are built on fundamentally different architectures and process nodes. The Intel Core Ultra 5 125H is a Meteor Lake part, fabricated on Intel's 7 nm process, and belongs to the Core Ultra Series 1. The Intel Core i5-12600KF is an Alder Lake-S chip, built on a 10 nm process as part of the 12th Gen family. This node difference is a key factor in their power profiles, with the mobile chip having a 28W TDP versus the desktop part's 125W TDP.

Core configurations differ significantly. The Core Ultra 5 125H has 14 cores and 18 threads, a higher core count than the 10 cores and 16 threads found in the i5-12600KF. This suggests a hybrid arrangement with more efficiency cores on the mobile part to manage power. Cache hierarchies also diverge: the Ultra 5 125H has 112 KB of L1 and 2 MB of L2 per core, with 18 MB of shared L3. The i5-12600KF has 80 KB of L1 and 1.25 MB of L2 per core, but a larger 20 MB of shared L3 cache.

Feature support highlights the generational shift. The Core Ultra 5 125H includes Arc Xe-LPG 96EU integrated graphics, a significant upgrade for a mobile part, and supports PCIe Gen 5. The i5-12600KF omits integrated graphics entirely and is limited to PCIe Gen 4, though it offers support for both DDR4 and DDR5 memory, whereas the Ultra 5 125H's memory support is listed as DDR5 dependent on the motherboard. The desktop chip also has an unlocked multiplier, a feature absent on the mobile processor.

Head-to-Head Benchmarks

The benchmark data paints a stark picture of performance differences, with the desktop i5-12600KF dominating across the board. The largest gaps are in multi-core rendering and single-core tests. In Cinebench R23 multi-core, the i5-12600KF leads by 45.3% (23391 vs 12804.5), and in Cinebench R23 single-core, it leads by a massive 50.1% (3302 vs 1647.5). This pattern continues in older Cinebench versions; for instance, the i5-12600KF is 27.1% ahead in Cinebench R20 multi-core (9824 vs 7161) and 27.4% ahead in R15 single-core (332 vs 241).

The desktop chip's advantage is consistent across various specialized workloads. In PassMark's extended instructions test, the i5-12600KF scores 22003 compared to the Ultra 5's 13749, a 37.5% lead. Data compression also favors the desktop part significantly, with a 31.2% advantage (343231 vs 236209). The margin narrows in some integer and floating-point math tasks, but the i5-12600KF still holds a 20.3% lead in integer math (87830 vs 69986) and a 23% lead in floating-point math (67074 vs 51670).

Even in tests where the Ultra 5 125H might be expected to be competitive due to its architecture, the i5-12600KF pulls ahead. In PassMark's physics test, the i5-12600KF scores 1539 versus 1439, a 6.5% lead. The smallest margin is in the find prime numbers test, where the i5-12600KF wins by just 3.3% (91 vs 88). The single-threaded PassMark score shows a 13.4% lead for the i5-12600KF (3925 vs 3399), a smaller gap than in Cinebench but still a clear victory.

The Verdict

The data directs a clear verdict for users prioritizing raw performance: the Intel Core i5-12600KF is the superior choice. It wins every benchmark in this dataset, with particularly decisive leads in multi-threaded rendering and single-core tasks. For workloads like video editing, 3D rendering, and CPU-intensive simulation, the i5-12600KF offers a substantial performance advantage, often between 20% and 50% faster than the Core Ultra 5 125H. Its unlocked multiplier also appeals to users who plan to overclock, and the support for both DDR4 and DDR5 offers platform flexibility.

The Intel Core Ultra 5 125H, however, is not without merit. Its architecture is designed for a different environment. As a mobile processor with a 28W TDP, it is intended for laptops where power draw and heat dissipation are critical constraints. Its inclusion of Arc Xe-LPG integrated graphics means a system built around it may not require a discrete GPU for basic tasks, a benefit the i5-12600KF cannot offer. The Ultra 5 125H is the appropriate choice for a thin-and-light laptop where battery life and portability are paramount, and where the performance of a 125W desktop chip is neither needed nor feasible.

Specification Differences

| Specification | Intel Core Ultra 5 125H | Intel Core i5-12600KF |

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

| Series | Core Ultra Series 1 | Core 12th Gen |

| Cores | 14 | 10 |

| Threads | 18 | 16 |

| Base Clock | 3.60 GHz | 3.70 GHz |

| Boost Clock | 4.50 GHz | 4.90 GHz |

| TDP | 28 W | 125 W |

| Socket | Intel BGA 2049 | Intel Socket 1700 |

| Architecture | Meteor Lake | Alder Lake |

| Codename | Meteor Lake | Alder Lake-S |

| Process Node | 7 nm | 10 nm |

| Die Size | Not specified | 215 mm² |

| L1 Cache | 112 KB (per core) | 80 KB (per core) |

| L2 Cache | 2 MB (per core) | 1.25 MB (per core) |

| L3 Cache | 18 MB (shared) | 20 MB (shared) |

| Memory Support | DDR5 (Depends on motherboard) | DDR4, DDR5 |

| Memory Bandwidth | 89.6 GB/s | Not specified |

| PCIe | Gen 5 | Gen 4, 20 Lanes (CPU only) |

| Integrated Graphics | Arc Xe-LPG 96EU | None |

| Market Segment | Mobile | Desktop |

| Launch MSRP | $375 | $264 |

| Multiplier Unlocked | No | Yes |

| Part Number | SRMZ4 | SRL4U |