AMD Ryzen 9 9955HX3D vs Intel Core 7 251E Comparison

Head-to-Head Benchmarks

The AMD Ryzen 9 9955HX3D and the Intel Core 7 251E sit at opposite ends of the performance spectrum. The database shows the AMD part with a percentile rank of 96, placing it among the top 4% of all CPUs tested, while the Intel Core 7 251E ranks at the 50th percentile, squarely in the middle of the field. That divide is reflected in every recorded workload.

For the AMD Ryzen 9 9955HX3D, the Cinebench R23 multi-core score of 38161.5 points is the headline result. The single-core score of 2159.5 points is also strong, indicating that the Zen 5 architecture delivers both parallel throughput and solid per-thread performance. The older Cinebench R15 test confirms the pattern: 6042.5 points multi-core and 332 points single-core.

The Passmark suite adds further detail. The AMD processor delivers a multi-thread score of 62674, a single-thread score of 4511, and an average benchmark score of 97453. In integer math, it records 222503; in floating-point math, 144122. Data compression hits 785811, while data encryption reaches 39446. Extended instructions score 62813, and random string sorting lands at 83497. Physics processing records 4687, and prime number finding scores 525.

For the Intel Core 7 251E, the database contains no benchmark entries at all. Its average benchmark score is listed as 0, and the nearest rivals field is empty. This is a critical point: in the recorded data, the Intel part has no measurable performance results. The AMD Ryzen 9 9955HX3D, by contrast, has a full suite of 15 separate benchmark scores, all of which are positive and substantial.

The absence of Intel data is not a neutral outcome. In a head-to-head comparison, a processor with zero recorded scores cannot compete against one with a 96th-percentile ranking. The AMD part's nearest rivals are all high-end workstation or server chips: the AMD Ryzen Threadripper PRO 5965WX is 1.1% ahead, the AMD Ryzen 9 PRO 9945 is 1.4% behind, the AMD EPYC 4565P is 1.8% behind, and the AMD EPYC 9175F is 1.9% behind. Those deltas are small, meaning the 9955HX3D trades blows with enterprise-class silicon.

The Intel Core 7 251E has no such reference points. Its 50th percentile ranking is derived from the overall CPU distribution, but without benchmark scores, the database cannot substantiate any specific capability. The conclusion from the head-to-head data is unambiguous: the AMD Ryzen 9 9955HX3D is the only one of these two with measurable performance, and that performance is elite.

FAQ

Q: Which processor has the higher benchmark scores?

A: Only the AMD Ryzen 9 9955HX3D has recorded benchmark scores. It averages 97453 across all tests, with a Cinebench R23 multi-core score of 38161.5 and a Passmark single-thread score of 4511. The Intel Core 7 251E has no benchmark entries and an average score of 0.

Q: How does the AMD Ryzen 9 9955HX3D compare to its nearest rivals?

A: The AMD Ryzen 9 9955HX3D is 1.1% behind the AMD Ryzen Threadripper PRO 5965WX, 1.4% ahead of the AMD Ryzen 9 PRO 9945, 1.8% ahead of the AMD EPYC 4565P, and 1.9% ahead of the AMD EPYC 9175F. All four rivals are within a 3% band, indicating near-parity with high-end workstation and server parts.

Q: What is the core and thread configuration of each CPU?

A: The AMD Ryzen 9 9955HX3D has 16 cores and 32 threads. The Intel Core 7 251E has 24 cores and 32 threads. Despite having fewer cores, the AMD part matches the Intel part in thread count.

Q: What are the clock speeds?

A: The AMD Ryzen 9 9955HX3D has a base clock of 2.50 GHz and a boost clock of 5.40 GHz. The Intel Core 7 251E has a base clock of 2.10 GHz and a boost clock of 5.60 GHz. The Intel part boosts higher, but the AMD part has a higher base clock.

Q: Which processor has more cache?

A: The AMD Ryzen 9 9955HX3D has 128 MB of L3 cache, while the Intel Core 7 251E has 36 MB of shared L3 cache. Both have 80 KB of L1 cache per core, but the AMD part has 1 MB of L2 per core versus 2 MB per core on the Intel part.

Q: What is the release timeline?

A: The AMD Ryzen 9 9955HX3D was released on January 5, 2025. The Intel Core 7 251E was released on January 12, 2025. Both are listed as active in production.

Architecture Differences

The AMD Ryzen 9 9955HX3D is built on the Zen 5 architecture with the Fire Range codename, part of AMD's 9000 series. It uses a 4 nm process node from TSMC and packs 16,630 million transistors across a dual-die design with each die measuring 70.6 mm². The Intel Core 7 251E uses the Bartlett Lake codename and a 10 nm process node from Intel's own foundry, with a single die measuring 257 mm².

Cache organization differs substantially. The AMD part allocates 80 KB of L1 per core, 1 MB of L2 per core, and a massive 128 MB of L3 cache. The Intel part also uses 80 KB of L1 per core but doubles the L2 to 2 MB per core, while its L3 is shared at 36 MB. The AMD part's L3 advantage is 92 MB, a 3.6x difference in favor of AMD.

Memory support also diverges. The AMD Ryzen 9 9955HX3D supports DDR5 only, while the Intel Core 7 251E supports both DDR4 and DDR5. Both use a dual-channel memory bus and both have a memory bandwidth of 89.6 GB/s. Both support ECC memory.

PCIe connectivity is another split. The AMD part provides Gen 5 with 28 lanes (CPU only), while the Intel part provides Gen 5 with 16 lanes (CPU only). That is a 12-lane advantage for AMD.

Integrated graphics differ. The AMD processor uses the Radeon 610M, while the Intel processor uses UHD Graphics 770. The AMD part has an unlocked multiplier, the Intel part is locked. The AMD part is a mobile segment chip on AMD Socket FL1, while the Intel part is a desktop segment chip on Intel Socket 1700.

The transistor count for the Intel part is not listed in the database, and its architecture field is null, so no direct architectural lineage is recorded for Intel beyond the Bartlett Lake codename and Core 7 generation label.

The Verdict

The data supports a clear verdict: the AMD Ryzen 9 9955HX3D is the superior processor for any workload that depends on raw compute. It has a 96th percentile ranking, an average benchmark score of 97453, and a full suite of strong results across Cinebench and Passmark tests. The Intel Core 7 251E has no recorded benchmark scores, an average of 0, and a 50th percentile ranking that places it in the middle of the CPU distribution.

For users who prioritize multi-threaded performance, the AMD part's Cinebench R23 multi-core score of 38161.5 and Passmark multi-thread score of 62674 are the numbers that matter. For single-threaded tasks, the AMD part's 4511 Passmark single-thread score and 2159.5 Cinebench R23 single-core score are solid. The Intel part offers nothing measurable in the database.

The Intel Core 7 251E does have advantages in specification: more cores (24 versus 16), a higher boost clock (5.60 GHz versus 5.40 GHz), DDR4 compatibility, and a larger L2 per core. But none of those specifications translate into recorded performance results. In a benchmark-driven comparison, specification advantages without measured scores do not carry weight.

The AMD Ryzen 9 9955HX3D is the pick for anyone who needs verified performance. The Intel Core 7 251E is a specification sheet without a performance record.

Specification Differences

| Specification | AMD Ryzen 9 9955HX3D | Intel Core 7 251E |

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

| Cores | 16 | 24 |

| Threads | 32 | 32 |

| Base Clock | 2.50 GHz | 2.10 GHz |

| Boost Clock | 5.40 GHz | 5.60 GHz |

| TDP | 55 W | 65 W |

| Socket | AMD Socket FL1 | Intel Socket 1700 |

| Codename | Fire Range | Bartlett Lake |

| Process Node | 4 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 2x 70.6 mm² | 257 mm² |

| L2 Cache | 1 MB (per core) | 2 MB (per core) |

| L3 Cache | 128 MB | 36 MB (shared) |

| Memory Support | DDR5 | DDR4, DDR5 |

| PCIe | Gen 5, 28 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | Radeon 610M | UHD Graphics 770 |

| Market Segment | Mobile | Desktop |

| Multiplier Unlocked | Yes | No |

| Release Date | 2025-01-05 | 2025-01-12 |

| Launch MSRP | Not listed | $384 |

The Intel Core 7 251E has a launch MSRP of $384. The AMD Ryzen 9 9955HX3D has no launch MSRP listed.

Where Each One Wins

The AMD Ryzen 9 9955HX3D wins in every measurable benchmark category. The database records 15 separate benchmark scores for the AMD part, all positive, with the lowest being Passmark find prime numbers at 525 and the highest being Passmark data compression at 785811. Multi-threaded workloads are a particular strength, as shown by the Cinebench R23 multi-core score of 38161.5 and the Passmark multi-thread score of 62674. The AMD part also delivers strong single-thread performance with a Passmark single-thread score of 4511.

The Intel Core 7 251E has no benchmark wins because it has no benchmark scores. Its wins exist only in specification: more cores (24 versus 16), a higher boost clock (5.60 GHz versus 5.40 GHz), DDR4 memory support for legacy compatibility, a larger L2 cache per core (2 MB versus 1 MB), and a lower process node number (10 nm versus 4 nm, though a lower number typically indicates a more advanced node, here it is the opposite in practical terms as 4 nm is smaller). The Intel part also has a locked multiplier, which may appeal to users who want fixed operating parameters, though the AMD part's unlocked multiplier offers more flexibility.

For use cases, the AMD Ryzen 9 9955HX3D is the choice for compute-heavy tasks: rendering, encryption, floating-point math, integer math, data compression, and physics simulations. Its 128 MB of L3 cache and 32 threads make it a strong candidate for large datasets and parallel workloads. The Intel Core 7 251E, with no recorded performance data, cannot be recommended for any specific task based on the database. Its 24 cores and 32 threads suggest potential in multi-threaded scenarios, but without measurements, that potential is unverified.

The AMD part's 96th percentile ranking and its narrow deltas against workstation-class rivals (within 1.9% in either direction) place it in a performance tier that the Intel part, at the 50th percentile, does not approach. The data is one-sided, and the use-case split reflects that: the AMD Ryzen 9 9955HX3D wins everywhere it is measured, and the Intel Core 7 251E wins nowhere it is measured.