AMD Ryzen 5 7533HS vs AMD Ryzen 9 9955HX Comparison

The Verdict

The benchmark data establishes a complete hierarchy between these two mobile processors. The AMD Ryzen 9 9955HX wins every single recorded head-to-head benchmark, 15 out of 15, with no victories for the Ryzen 5 7533HS in any category. The performance gap is substantial across both multi-threaded and single-threaded workloads.

The Ryzen 9 9955HX belongs in a high-performance mobile workstation or enthusiast gaming laptop. Its 96th percentile ranking against all CPUs, with an average benchmark score of 91,199, places it alongside workstation-class silicon like the Intel Xeon 654 (which trails by 0.5%) and the AMD Ryzen AI Max+ 392 (which trails by 0.7%). The Ryzen 5 7533HS, by contrast, sits at the 73rd percentile with an average score of 19,364, putting it in the company of the Intel Core Ultra 5 226V (0% delta) and Intel Core i5-1345U (0.2% ahead).

For users who need maximum compute density, the Ryzen 9 9955HX is the clear choice. The data shows it delivers roughly 3.7 times the overall average benchmark score of the Ryzen 5 7533HS. The Ryzen 5 7533HS, however, remains relevant for lighter mobile systems where its 35W TDP and integrated Radeon 660M graphics provide a balanced feature set, though it cannot match the Ryzen 9 in any measured performance category.

Architecture Differences

The two processors come from different architectural generations and manufacturing processes. The Ryzen 5 7533HS uses Zen 3+ architecture, codenamed Rembrandt-R, built on TSMC's 6 nm process. The Ryzen 9 9955HX uses Zen 5 architecture, codenamed Fire Range, built on TSMC's 4 nm process. This process advantage contributes to the Ryzen 9's ability to operate at higher clock speeds despite a higher power envelope.

The core configurations differ dramatically. The Ryzen 5 7533HS has 6 cores and 12 threads, while the Ryzen 9 9955HX has 16 cores and 32 threads. The Ryzen 9 also carries a transistor count of 16,630 million across a dual-die design measuring 2x 70.6 mm², whereas the Ryzen 5 uses a monolithic 208 mm² die. Cache hierarchies scale accordingly: the Ryzen 5 has 64 KB L1 per core, 512 KB L2 per core, and 16 MB shared L3, while the Ryzen 9 has 80 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3.

Memory and I/O features also separate the two. Both support DDR5 and dual-channel memory, but the Ryzen 9 offers 89.6 GB/s memory bandwidth versus 76.8 GB/s for the Ryzen 5. The Ryzen 9 supports ECC memory while the Ryzen 5 does not. PCIe connectivity differs as well: the Ryzen 5 provides Gen 4 with 20 lanes, while the Ryzen 9 provides Gen 5 with 28 lanes. Integrated graphics differ, with the Ryzen 5 using Radeon 660M and the Ryzen 9 using Radeon 610M. The Ryzen 9 has an unlocked multiplier; the Ryzen 5 does not. Sockets differ too: the Ryzen 5 uses AMD Socket FP7, the Ryzen 9 uses AMD Socket FL1.

FAQ

Q: Which processor has the higher single-core performance?

A: The Ryzen 9 9955HX leads in every single-threaded benchmark. In Cinebench R23 single-core, it scores 2,174 versus 1,742 for the Ryzen 5 7533HS, a 19.9% advantage. PassMark single-thread shows 4,393 versus 2,740, a 37.6% lead.

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

A: The Ryzen 9 9955HX dominates multi-threaded workloads. In Cinebench R23 multi-core, it scores 37,159 versus 12,342, a 66.8% advantage. The Cinebench R15 multi-core gap is even larger at 79%, with scores of 5,905 versus 1,243.

Q: Do both processors support the same memory type?

A: Yes, both support DDR5 and use dual-channel memory buses. The Ryzen 9 9955HX provides higher bandwidth at 89.6 GB/s compared to 76.8 GB/s for the Ryzen 5 7533HS, and it also supports ECC memory while the Ryzen 5 does not.

Q: What are the TDP differences?

A: The Ryzen 5 7533HS has a 35W TDP, while the Ryzen 9 9955HX has a 55W TDP. The higher power envelope of the Ryzen 9 supports its additional cores and higher boost clock.

Q: Which processor has newer architecture?

A: The Ryzen 9 9955HX uses Zen 5 architecture (Fire Range), while the Ryzen 5 7533HS uses Zen 3+ (Rembrandt-R). The Ryzen 9 also uses a newer 4 nm process compared to the 6 nm process of the Ryzen 5.

Q: Can the Ryzen 5 7533HS win any benchmark category?

A: No. Across all 15 recorded head-to-head benchmarks, the Ryzen 9 9955HX wins every test. The Ryzen 5 7533HS records zero wins.

Specification Differences

| Specification | AMD Ryzen 5 7533HS | AMD Ryzen 9 9955HX |

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

| Series | 7000 series | 9000 series |

| Cores | 6 | 16 |

| Threads | 12 | 32 |

| Base Clock | 3.30 GHz | 2.50 GHz |

| Boost Clock | 4.40 GHz | 5.40 GHz |

| TDP | 35W | 55W |

| Socket | AMD Socket FP7 | AMD Socket FL1 |

| Architecture | Zen 3+ | Zen 5 |

| Codename | Rembrandt-R | Fire Range |

| Process Node | 6 nm | 4 nm |

| Transistors | Not specified | 16,630 million |

| Die Size | 208 mm² | 2x 70.6 mm² |

| L1 Cache | 64 KB per core | 80 KB per core |

| L2 Cache | 512 KB per core | 1 MB per core |

| L3 Cache | 16 MB shared | 64 MB shared |

| Memory Bandwidth | 76.8 GB/s | 89.6 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 4, 20 Lanes | Gen 5, 28 Lanes |

| Integrated Graphics | Radeon 660M | Radeon 610M |

| Multiplier Unlocked | No | Yes |

| Part Number | 100-000001632(FP7), 100-000001634(FP7r2) | 100-000001028 |

| Release Date | 2024-08-31 | 2025-01-05 |

Head-to-Head Benchmarks

The Ryzen 9 9955HX wins every recorded benchmark, with deltas ranging from 19.9% to 83.3%. The smallest gap appears in Cinebench R23 single-core, where the Ryzen 9 scores 2,174 against 1,742, a 19.9% advantage. This shows that even in lightly threaded workloads, the Zen 5 architecture and higher 5.40 GHz boost clock provide a meaningful edge over the Zen 3+ chip's 4.40 GHz boost.

PassMark single-thread and singlethread tests both show 4,393 versus 2,740, a 37.6% lead. The Cinebench R15 single-core result shows 336 versus 175, a 47.9% gap. These single-thread results confirm that the Ryzen 9's architectural advantage extends beyond raw core count.

Multi-threaded results amplify the gap. Cinebench R23 multi-core shows 37,159 versus 12,342, a 66.8% delta. Cinebench R15 multi-core shows 5,905 versus 1,243, a 79% delta. PassMark multithread shows 56,171 versus 14,520, a 74.2% lead. The largest deltas appear in specialized compute tasks: PassMark find prime numbers shows 287 versus 48, an 83.3% gap, and PassMark extended instructions shows 57,946 versus 11,219, an 80.6% gap.

Data-heavy workloads follow the same pattern. PassMark data compression shows 731,998 versus 168,692, a 77% delta. PassMark data encryption shows 37,330 versus 10,718, a 71.3% delta. PassMark floating point math shows 136,682 versus 27,800, a 79.7% delta. PassMark integer math shows 212,598 versus 50,800, a 76.1% delta. PassMark random string sorting shows 77,890 versus 17,669, a 77.3% delta. PassMark physics shows 2,720 versus 821, a 69.8% delta.

Where Each One Wins

The Ryzen 9 9955HX wins everywhere in the recorded data. Its 16 cores and 32 threads, combined with Zen 5 architecture, make it the superior choice for heavily parallel workloads such as video rendering, 3D simulation, code compilation, and scientific computing. The 66.8% to 79% leads in Cinebench multi-core tests reflect the doubling of cores plus architectural efficiency gains. The 64 MB of shared L3 cache and 89.6 GB/s memory bandwidth support large datasets that would exhaust the Ryzen 5's 16 MB L3 and 76.8 GB/s bandwidth.

The Ryzen 9 also wins single-threaded tasks, though by smaller margins. The 19.9% lead in Cinebench R23 single-core and 37.6% lead in PassMark single-thread make it the better choice for applications that rely on per-core performance, such as many legacy games or lightly threaded productivity tools. The higher 5.40 GHz boost clock and newer 4 nm process contribute to this advantage.

The Ryzen 5 7533HS has no benchmark wins in the database. Its strengths are relative rather than absolute: a lower 35W TDP, smaller physical footprint with a monolithic 208 mm² die, and the Radeon 660M integrated graphics. These characteristics suit thin-and-light mobile systems where power efficiency and integrated graphics capability matter more than peak throughput. The Ryzen 5's 73rd percentile ranking indicates it performs competently against the broader CPU field, even if it cannot compete with the Ryzen 9's 96th percentile standing.

For users selecting between the two, the decision hinges on workload requirements. The Ryzen 9 9955HX delivers roughly 4.7 times the PassMark multithread score, 3 times the Cinebench R23 multi-core score, and 1.5 times the PassMark single-thread score. The Ryzen 5 7533HS offers a lower-power alternative with zero recorded performance wins, suitable for systems where the 35W TDP and integrated Radeon 660M graphics provide sufficient capability for mainstream tasks without the power draw of a 55W flagship.