AMD Ryzen 7 7840HS vs Intel Core Ultra 5 225T Comparison

The Intel Core Ultra 5 225T and AMD Ryzen 7 7840HS are two very different processors aimed at different segments, and the benchmark data reflects that split. The Ultra 5 225T is a desktop part with a 65W TDP, built on a newer 3nm process, while the 7840HS is a mobile chip with a 35W TDP on a 4nm process. The data shows a clear trade-off: the Intel part dominates in single-threaded and certain compute-heavy workloads, while the AMD part leverages its 16 threads to win in multi-threaded and data-handling tasks. The overall average benchmark scores are close — 30468 for the Intel and 29955 for the AMD — but the distribution of wins is starkly different, with the Intel taking 8 head-to-head benchmarks and the AMD taking 7.

The Verdict

From the data, the choice comes down to workload priority. The Intel Core Ultra 5 225T is the pick for users who need maximum single-core performance and raw floating-point or physics compute. It wins the Cinebench R23 single-core test by a massive 76.1% (3101 vs 1761) and the R23 multi-core test by 45.5% (21971 vs 15102). It also crushes the AMD in PassMark's find prime numbers (284 vs 88, a 222.7% lead) and floating-point math (82751 vs 59921, a 38.1% lead). This makes it the stronger choice for lightly-threaded applications, simulation work, and any task that relies heavily on a single core's efficiency.

The AMD Ryzen 7 7840HS is the better option for heavily threaded, data-intensive workloads. Despite having fewer cores (8 vs 10), it has 16 threads versus the Intel's 10, and that advantage shows. It wins PassMark's integer math by 39.7% (98682 vs 59543), data compression by 32.3% (345536 vs 233998), and random string sorting by 28.7% (40364 vs 28774). It also leads in the overall PassMark multithread score (28633 vs 25358, an 11.4% lead). If your workflow involves constant data shuffling, encryption, or heavy parallel integer processing, the AMD part is the data-driven winner.

Neither is a clear overall victor. The Intel has a higher percentile ranking (82nd vs 81st) and a slightly higher average score (30468 vs 29955), but the AMD is within 1.7% on that metric. The real answer is that the Intel Ultra 5 225T is for someone building a desktop focused on snappy response and single-thread speed, while the Ryzen 7 7840HS is for a mobile or compact system where multi-threaded throughput is the priority.

Architecture Differences

The two chips come from entirely different design philosophies. The Intel Core Ultra 5 225T is based on the Arrow Lake-S architecture, codenamed Arrow Lake-S, and is part of the Core Ultra Series 2. It is built on a 3nm process by TSMC, packing 17,800 million transistors into a 243 mm² die. It features 10 cores and 10 threads, meaning no hyperthreading, with a base clock of 2.50 GHz and a boost clock of 4.90 GHz. Its cache layout is 192 KB of L1 per core, 3 MB of L2 per core, and 20 MB of shared L3. It uses a 65W TDP and connects via Intel Socket 1851. The integrated graphics are Arc Xe-LPG Graphics with 16 execution units.

The AMD Ryzen 7 7840HS is built on the Zen 4 architecture, codenamed Phoenix, from the 7000 series. It uses a 4nm process by TSMC, with 25,000 million transistors on a smaller 178 mm² die. It has 8 cores and 16 threads thanks to simultaneous multithreading, with a higher base clock of 3.80 GHz and a boost clock of 5.10 GHz. Its cache is smaller per core — 64 KB L1 and 1 MB L2 — with 16 MB of shared L3. It runs at a much lower 35W TDP and uses the AMD Socket FP8. The integrated graphics are the Radeon 780M, which is a significant upgrade in GPU capability compared to the Intel's 16 EU Arc part.

Memory support differs slightly. Both support DDR5 and dual-channel memory, but the Intel part offers a higher theoretical memory bandwidth of 102.4 GB/s versus the AMD's 89.6 GB/s. The AMD supports ECC memory, while the Intel does not. PCIe also differs: the Intel uses Gen 5 with 20 lanes (CPU only), while the AMD uses Gen 4 with the same lane count. The Intel part is a desktop segment product, while the AMD is classified as mobile.

Head-to-Head Benchmarks

The benchmark results paint a clear picture of each chip's strengths. In Cinebench R23, the Intel Ultra 5 225T wins both tests decisively. The single-core score of 3101 is 76.1% higher than the AMD's 1761, and the multi-core score of 21971 is 45.5% higher than 15102. This is a massive gap in a widely-used rendering benchmark, indicating the Intel is substantially faster for both single-threaded and multi-threaded rendering tasks in this specific test.

However, the AMD Ryzen 7 7840HS fights back in PassMark's suite. The most dramatic win is in integer math, where the AMD scores 98682 versus the Intel's 59543, a 39.7% advantage. Data compression also heavily favors the AMD, at 345536 vs 233998, a 32.3% lead. Random string sorting goes to the AMD by 28.7% (40364 vs 28774), and data encryption by 11.3% (20627 vs 18289). The AMD also wins the PassMark multithread score, 28633 vs 25358, an 11.4% lead.

The Intel's wins are equally pronounced in other areas. In PassMark's find prime numbers, the Intel scores 284 versus the AMD's 88, a 222.7% lead. Floating-point math goes to Intel by 38.1% (82751 vs 59921), and physics by 49.2% (2053 vs 1376). In single-thread tests, the Intel leads by 15.9% in both PassMark single-thread and singlethread (4348 vs 3753). The only close contest is Cinebench R15 multi-core, where the AMD edges out a 0.4% win (2222.84 vs 2214). The R15 single-core test goes to Intel by 13.9% (312 vs 274).

The pattern is consistent: Intel wins on single-core and floating-point/physics-oriented tasks, while AMD wins on integer-heavy and data-processing tasks. The Cinebench R23 multi-core result is the outlier, where Intel's 10 cores outperform AMD's 16 threads by a wide margin, suggesting the Intel's newer architecture offers better scaling in that specific workload.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 7 7840HS has a boost clock of 5.10 GHz, which is higher than the Intel Core Ultra 5 225T's 4.90 GHz.

Q: Does the Intel Core Ultra 5 225T support ECC memory?

A: No, the data shows that ECC memory support is false for the Intel part. The AMD Ryzen 7 7840HS does support ECC memory.

Q: How do the two chips compare in terms of threads?

A: The AMD Ryzen 7 7840HS has 16 threads from its 8 cores, while the Intel Core Ultra 5 225T has 10 threads from its 10 cores. The AMD has 60% more threads.

Q: Which chip wins in Cinebench R23 single-core?

A: The Intel Core Ultra 5 225T wins decisively with a score of 3101, which is 76.1% higher than the AMD's 1761.

Q: What is the memory bandwidth difference?

A: The Intel Core Ultra 5 225T offers 102.4 GB/s of memory bandwidth, while the AMD Ryzen 7 7840HS offers 89.6 GB/s. The Intel has a 12.8 GB/s advantage.

Q: Which processor has a smaller manufacturing process node?

A: The Intel Core Ultra 5 225T is built on a 3nm process, while the AMD Ryzen 7 7840HS uses a 4nm process. The Intel uses a smaller node.

Where Each One Wins

The Intel Core Ultra 5 225T is the clear winner in scenarios that demand high single-thread performance. Its 15.9% lead in PassMark single-thread and 76.1% lead in Cinebench R23 single-core mean it will feel snappier in everyday tasks and applications that rely on one or two cores. It is also the better choice for physics simulation (49.2% lead) and floating-point math (38.1% lead), making it suitable for scientific computing, financial modeling, or any workload that uses floating-point operations heavily. The 222.7% lead in find prime numbers suggests it is also strong in integer-heavy single-threaded loops. Its higher memory bandwidth (102.4 vs 89.6 GB/s) and PCIe Gen 5 support may also benefit certain data-intensive desktop workloads.

The AMD Ryzen 7 7840HS is the winner for multi-threaded, data-shuffling tasks. Its 16 threads give it a significant edge in integer math, where it leads by 39.7%, and in data compression, where it leads by 32.3%. This makes it the better choice for file compression, database operations, and encryption workloads (11.3% lead). The 28.7% lead in random string sorting indicates superior handling of non-sequential data access patterns. Its overall PassMark multithread score is 11.4% higher, meaning it is generally better at parallel integer tasks. The 780M integrated graphics also represent a much stronger iGPU solution compared to the Intel's 16 EU Arc part, which could matter for light gaming or media work without a discrete GPU. Its lower 35W TDP also makes it more suitable for power-constrained mobile systems.

Specification Differences

| Specification | Intel Core Ultra 5 225T | AMD Ryzen 7 7840HS |

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

| Cores | 10 | 8 |

| Threads | 10 | 16 |

| Base Clock | 2.50 GHz | 3.80 GHz |

| Boost Clock | 4.90 GHz | 5.10 GHz |

| TDP | 65W | 35W |

| Socket | Intel Socket 1851 | AMD Socket FP8 |

| Architecture | Arrow Lake | Zen 4 |

| Process Node | 3 nm | 4 nm |

| Transistors | 17,800 million | 25,000 million |

| Die Size | 243 mm² | 178 mm² |

| L1 Cache | 192 KB (per core) | 64 KB (per core) |

| L2 Cache | 3 MB (per core) | 1 MB (per core) |

| L3 Cache | 20 MB (shared) | 16 MB (shared) |

| Memory Bandwidth | 102.4 GB/s | 89.6 GB/s |

| ECC Memory | No | Yes |

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

| Integrated Graphics | Arc Xe-LPG Graphics 16EU | Radeon 780M |

| Market Segment | Desktop | Mobile |