AMD Ryzen 5 7645HX vs Intel Core i7-13650HX Comparison

AMD Ryzen 5 7645HX and Intel Core i7-13650HX are both mobile processors aimed at high-performance laptops, but the data shows they are built for different priorities. The Intel part wins the majority of benchmark comparisons, often by wide margins, while the AMD chip takes a few specific, narrow victories. The recorded scores position the Ryzen 5 7645HX at the 84th percentile of all CPUs, while the Core i7-13650HX sits just behind at the 83rd percentile. Their average benchmark scores are close, 33668 for the AMD and 33089 for the Intel, but that average masks a very uneven head-to-head record where the Intel chip dominates most workloads.

Where Each One Wins

The Intel Core i7-13650HX is the clear winner in heavily threaded productivity workloads. Its multi-core scores are far ahead of the AMD Ryzen 5 7645HX, with the largest gap appearing in Cinebench R23 multi-core, where the Intel part leads by 43.1%. This pattern repeats across integer math, floating point math, data compression, and multithreaded Passmark tests. If the workload scales across many cores, the Intel processor is the stronger choice, often by double-digit percentages.

The AMD Ryzen 5 7645HX wins in two very specific areas: single-thread performance and prime number calculation. In the Passmark single-thread test, the AMD chip scores 3907 against 3769 for the Intel, a 3.7% advantage. The larger win comes in the Passmark find prime numbers test, where the AMD processor scores 178 versus 103 for the Intel, a massive 72.8% lead. This suggests the AMD architecture handles that particular instruction pattern far more efficiently, though it is a narrow workload. The AMD part also has the edge in average benchmark score, 33668 versus 33089, and a slightly better percentile ranking, 84th versus 83rd.

Architecture Differences

The two chips come from fundamentally different design philosophies. The AMD Ryzen 5 7645HX uses the Zen 4 architecture on a 5 nm TSMC process node with a die size of 71 mm² and 6,570 million transistors. It has 6 cores and 64 threads. The Intel Core i7-13650HX uses Raptor Lake architecture on Intel's 10 nm process with a 257 mm² die size. It has 14 cores and 20 threads. Intel's design pairs performance cores with efficiency cores on the same die, which explains the thread count advantage over the AMD part.

Cache layouts differ as well. The AMD chip allocates 64 KB of L1 cache per core, 1 MB of L2 per core, and 32 MB of L3 cache shared. The Intel chip has 80 KB of L1 per core and 2 MB of L2 per core, but only 24 MB of shared L3 cache. Memory support diverges too: the AMD processor supports DDR5 only with dual-channel memory and a recorded bandwidth of 83.2 GB/s, while the Intel chip supports both DDR4 and DDR5 in dual-channel mode. Both support ECC memory. The AMD part offers 28 PCIe Gen 5 lanes from the CPU, while the Intel part offers 20 PCIe Gen 5 lanes.

The integrated graphics also differ. AMD pairs the Ryzen 5 7645HX with the Radeon 610M, while the Intel Core i7-13650HX uses the UHD Graphics 710. The AMD processor is not multiplier unlocked, while the Intel chip is. The Intel part carries a launch MSRP of $485. Both are mobile processors with active production status and the same release date of January 3, 2023.

Head-to-Head Benchmarks

The Cinebench results show the starkest contrast. In Cinebench R23 multi-core, the Intel Core i7-13650HX scores 24580 against 13985 for the AMD Ryzen 24580, a 43.1% lead. The single-core gap is even larger proportionally, 3470 for the Intel against 24580 versus 1809 for the AMD, a 47.9% Intel advantage. In the older Cinebench R15 multi-core test, the Intel still wins but by a smaller margin, 2477 versus 2276, an 8.1% lead. The R15 single-core test also goes to Intel, 349 against 289, a 17.2% gap.

Passmark results mirror this. The Intel chip leads in data compression with 383943 against 302256, a 21.3% advantage, and in data encryption with 21649 against 17900, a 17.3% edge. Floating point math goes to Intel as well, 75643 versus 48798, a 35.5% lead. Integer math shows a 24.8% Intel advantage, 102929 versus 77432. The multithread test favors Intel by 13.8%, with 30704 versus 26476. Physics and random string sorting both go to Intel, with 14.2% and 16.3% leads respectively. Extended instructions are nearly a tie in practical terms, Intel wins by just 23146 against 22969, a 0.8% margin.

The AMD wins are narrow, with the 3.7% single-thread win being the headline result. The prime numbers test is the outlier at 72.8% ahead. The overall record stands at 12 wins for the Intel and 3 for the AMD.

The Verdict

The database points to a simple decision for most users. The Intel Core i7-13650HX is the better choice for anyone who needs raw multi-core throughput. The 43.1% lead in Cinebench R23 multi-core and 35.5% lead in floating point math are decisive. For rendering, heavy math, data compression, or any workload that uses many threads, the Intel chip is clearly the stronger processor. The 14-core, 20-thread design simply has more resources to throw at parallel work.

The AMD Ryzen 5 7645HX makes sense for a different buyer. The 3.7% single-thread lead and the massive 72.8% advantage in prime number calculation show that Zen 4 handles certain instruction patterns better. The smaller die size at 71 mm² versus 257 mm², the 5 nm process, and the higher memory bandwidth figure of 83.2 GB/s also suggest a more efficient design. However, in the benchmark records, those advantages appear in only three of fifteen head-to-head comparisons. For general use, the Intel part wins more tests, and the wins are usually larger.

FAQ

Q: Which processor is faster in single-core tasks?

A: The AMD Ryzen 5 7645HX has a 3.7% lead in the Passmark single-thread test, scoring 3907 versus 3769 for the Intel Core i7-13650HX.

Q: Which processor is better for multi-core rendering?

A: The Intel Core i7-13650HX wins Cinebench R23 multi-core by a 43.1% margin, scoring 24580 against the AMD Ryzen 5 7645HX's 13985.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 5 7645HX and the Intel Core i7-13650HX support ECC memory.

Q: What memory types does each processor support?

A: The AMD Ryzen 5 7645HX supports DDR5 only with a dual-channel memory bus. The Intel Core i7-13650HX supports both DDR4 and DDR5 with a dual-channel memory bus.

Q: How do the two compare in overall benchmark ranking?

A: The AMD Ryzen 5 7645HX ranks at the 84th percentile of all CPUs with an average benchmark score of 33668. The Intel Core i7-13650HX ranks at the 83rd percentile with an average score of 33089.

Q: Which processor has more cores and threads?

A: The Intel Core i7-13650HX has 14 cores and 20 threads, while the AMD Ryzen 5 7645HX has 6 cores and 12 threads.

Specification Differences

| Specification | AMD Ryzen 5 7645HX | Intel Core i7-13650HX |

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

| Cores | 6 | 14 |

| Threads | 12 | 20 |

| Base Clock | 4.00 GHz | 2.60 GHz |

| Boost Clock | 5.00 GHz | 4.90 GHz |

| TDP | 45 W | 55 W |

| Socket | AMD Socket FL1 | Intel BGA 1964 |

| Architecture | Zen 4 | Raptor Lake |

| Process Node | 5 nm | 10 nm |

| Foundry | TSMC | Intel |

| Transistors | 6,570 million | N/A |

| Die Size | 71 mm² | 257 mm² |

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

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

| L3 Cache | 32 MB (shared) | 24 MB (shared) |

| Memory Support | DDR5 | DDR4, DDR5 |

| Memory Bandwidth | 83.2 GB/s | N/A |

| PCIe | Gen 5, 28 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated Graphics | Radeon 610M | UHD Graphics 710 |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | N/A | $485 |