Intel Core i7-14650HX vs Intel Core i9-12900 Comparison

The Intel Core i9-12900 and the Intel Core i7-14650HX are both 16-core, 24-thread processors, but they represent two very different design philosophies and market segments. The data shows a fascinating split: the desktop-oriented Alder Lake chip wins the majority of the head-to-head benchmarks, while the mobile Raptor Lake part takes the most decisive victories in specific workloads. This comparison reveals that raw core count alone does not determine performance, as the architecture and target platform play a significant role in shaping benchmark outcomes.

Head-to-Head Benchmarks

The most striking result is the sheer number of wins for the Intel Core i9-12900. Out of 19 recorded head-to-head benchmark comparisons, the desktop processor claims victory in 11 of them. Its wins are often narrow but consistent. In Cinebench R20, the i9-12900 edges out the i7-14650HX with a 0.4% lead in both multicore (11994 vs 11946) and singlecore (1693 vs 1686) tests. The PassMark suite similarly favors the desktop chip, with lead margins ranging from 0.3% in multithread (33608 vs 33495) to a more substantial 9.3% in integer math (127512 vs 116661). The i9-12900 also leads in floating point math (91514 vs 84999, a 7.7% advantage), data compression (407899 vs 398418, up 2.4%), and data encryption (23203 vs 22917, a 1.2% margin). Even in single-threaded PassMark testing, the i9-12900 wins with a 4.2% lead (4003 vs 3841).

The Intel Core i7-14650HX, however, wins with far larger margins in its strongest areas. Its most dominant result is in the PassMark physics test, where it scores 2202 against the i9-12900's 1730, a 21.4% advantage. Similarly, in PassMark find prime numbers, the mobile chip leads by 20.4% (152 vs 121). These are not minor differences; they represent substantial gaps in specific computational tasks.

The Cinebench family of benchmarks tells a mixed story. While the i9-12900 wins Cinebench R20, the i7-14650HX dominates Cinebench R23 and R15. In Cinebench R23 multicore, the mobile part scores 20454 versus 18628, an 8.9% lead, and in singlecore it posts 1969 against 1825, a 7.3% advantage. The R15 results show a similar pattern: the i7-14650HX leads by 4.9% in multicore (3470.5 vs 3299) and by 8.2% in singlecore (285.5 vs 262). Geekbench results also favor the mobile chip, with an 8.1% multicore lead (14249 vs 13088) and an 8.3% singlecore lead (2173 vs 1993).

Where Each One Wins

The benchmark data points to a clear use-case separation. The Intel Core i9-12900 appears better suited for general-purpose desktop workloads that rely on sustained throughput across a wide range of operations. Its wins in integer math, floating point math, data compression, and encryption suggest it handles diverse computational tasks with slightly more efficiency. The PassMark multithread score, though close at 0.3%, reinforces this idea of consistent, broad performance. For workloads that involve random string sorting, the i9-12900 also takes a 2.4% lead (44070 vs 43035), indicating an edge in data manipulation tasks.

The Intel Core i7-14650HX excels in specific, physics-based and prime-number workloads. The 21.4% lead in PassMark physics is substantial, and the 20.4% advantage in find prime numbers is even more pronounced. These are compute-heavy tasks that often benefit from architectural optimizations. The Cinebench R23 and Geekbench results, which show leads of 8.9% and 8.1% respectively, suggest that the mobile chip has a stronger single-core performance profile in certain rendering and general computing scenarios. The consistent single-core advantage in Geekbench and Cinebench R15 and R23 implies that for applications prioritizing single-threaded speed, the i7-14650HX is the better choice.

Architecture Differences

The two processors are built on different architectures, which explains many of the performance divergences. The Intel Core i9-12900 uses the Alder Lake architecture with the codename Alder Lake-S, while the i7-14650HX is based on Raptor Lake, specifically Raptor Lake-HX Refresh. Both are manufactured on a 10 nm process at Intel, but the die sizes differ significantly. The i9-12900 has a die size of 215 mm², while the i7-14650HX is larger at 257 mm².

Cache configurations also differ. Both processors share 80 KB of L1 cache per core and 30 MB of shared L3 cache, but the L2 cache per core is not the same. The i9-12900 has 1.25 MB of L2 cache per core, while the i7-14650HX has 2 MB per core. This larger L2 cache on the mobile part could contribute to its performance in certain workloads that benefit from faster access to frequently used data.

Memory support is identical in terms of types: both support DDR4 and DDR5 with dual-channel memory buses. However, the i9-12900 has a listed memory bandwidth of 76.8 GB/s, while the i7-14650HX does not have a recorded memory bandwidth figure in the database. Both support ECC memory and PCIe Gen 5 with 16 lanes from the CPU. The integrated graphics differ: the desktop chip uses UHD Graphics 770, while the mobile chip uses UHD Graphics 710.

The market segments are fundamentally different. The i9-12900 is a desktop processor on the Intel Socket 1700 platform with a TDP of 65, while the i7-14650HX is a mobile processor on the Intel BGA 1964 socket with a TDP of 55. The desktop chip has a base clock of 2.40 GHz and a boost clock of 5.10 GHz, while the mobile chip has a lower base clock of 2.20 GHz but a higher boost clock of 5.20 GHz. Both have unlocked multipliers and are currently in active production.

The release dates are nearly two years apart. The i9-12900 was released on 2022-01-03, while the i7-14650HX arrived on 2024-01-07. This generational gap is reflected in the architecture improvements, though the desktop chip still holds its own in many tests.

FAQ

Q: Which processor has a higher boost clock?

A: The Intel Core i7-14650HX has a boost clock of 5.20 GHz, while the Intel Core i9-12900 has a boost clock of 5.10 GHz.

Q: How do the two processors compare in Cinebench R23 multicore performance?

A: The Intel Core i7-14650HX scores 20454 in Cinebench R23 multicore, which is 8.9% higher than the Intel Core i9-12900's score of 18628.

Q: Do both processors support the same memory types?

A: Yes, both the Intel Core i9-12900 and the Intel Core i7-14650HX support DDR4 and DDR5 memory with dual-channel buses.

Q: Which processor has a larger L2 cache per core?

A: The Intel Core i7-14650HX has 2 MB of L2 cache per core, while the Intel Core i9-12900 has 1.25 MB per core.

Q: What is the difference in their socket types?

A: The Intel Core i9-12900 uses Intel Socket 1700, while the Intel Core i7-14650HX uses Intel BGA 1964.

Q: Which processor wins in PassMark physics testing?

A: The Intel Core i7-14650HX scores 2202 in PassMark physics, a 21.4% lead over the Intel Core i9-12900's score of 1730.

The Verdict

The data presents a nuanced picture. The Intel Core i9-12900 wins 11 of 19 benchmarks, but its victories are generally by small margins, often under 5%. The Intel Core i7-14650HX wins 8 benchmarks, yet its victories include some of the largest gaps in the entire comparison, particularly in physics and prime number calculations. The desktop chip demonstrates broader, more consistent strength across a variety of workloads, while the mobile chip shows exceptional performance in specific compute-heavy tasks.

For users prioritizing single-core performance in Cinebench and Geekbench, the i7-14650HX is clearly the better choice. Its singlecore leads of 8.2% in Cinebench R15, 7.3% in Cinebench R23, and 8.3% in Geekbench are significant. For those focused on diverse desktop workloads involving integer math, floating point math, and data compression, the i9-12900 offers advantages, though the margins are smaller. The i9-12900 also benefits from a lower TDP of 65 compared to the i7-14650HX's 55, though the mobile part has a higher boost clock. Both processors sit at the 88th percentile against all CPUs, indicating they are both high-performing parts, but their strengths lie in different areas. The choice ultimately depends on whether the user values the i9-12900's consistency or the i7-14650HX's peak performance in specialized tasks.

Specification Differences

| Specification | Intel Core i9-12900 | Intel Core i7-14650HX |

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

| Base Clock | 2.40 GHz | 2.20 GHz |

| Boost Clock | 5.10 GHz | 5.20 GHz |

| TDP | 65 | 55 |

| Socket | Intel Socket 1700 | Intel BGA 1964 |

| Architecture | Alder Lake | Raptor Lake |

| Codename | Alder Lake-S | Raptor Lake-HX |

| Generation | Core i9 (Alder Lake-S) | Core i7 (Raptor Lake-HX Refresh) |

| Die Size | 215 mm² | 257 mm² |

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

| Memory Bandwidth | 76.8 GB/s | Not recorded |

| Integrated Graphics | UHD Graphics 770 | UHD Graphics 710 |

| Market Segment | Desktop | Mobile |

| Release Date | 2022-01-03 | 2024-01-07 |

| Launch MSRP | $519 | Not recorded |

| Part Number | SRL4KQXQ3 | SRMXH |