AMD Ryzen 5 PRO 6650H vs Intel Core i5-12450HX Comparison

The Intel Core i5-12450HX and AMD Ryzen 5 PRO 6650H are two mobile processors aimed at different priorities. The data shows the Intel chip wins 10 of the 15 head-to-head benchmarks, while the AMD chip takes 5. The Intel part leads in raw multi-threaded throughput and physics simulations, but the AMD chip counters with superior efficiency and wins in several integer-heavy and encryption workloads. For pure performance-per-core in legacy tests, the AMD chip is stronger, but the Intel part's extra cores and higher boost clock give it the overall edge in modern, heavily threaded applications. The Intel Core i5-12450HX is the pick for users prioritizing maximum multithreaded performance and gaming physics, while the AMD Ryzen 5 PRO 6650H suits those who need strong single-core legacy performance and better memory bandwidth.

The Verdict

The Intel Core i5-12450HX is the default choice for compute-heavy workloads that scale across cores. Its 19.1% lead in Cinebench R23 multi-core (11390 vs 9561) and 29.6% advantage in PassMark physics (1086 vs 838) make it clearly superior for 3D rendering and simulation tasks. The AMD Ryzen 5 PRO 6650H wins the older Cinebench R15 tests, but those are less representative of modern software. If you are building a mobile workstation for encoding, compiling, or rendering, the Intel part's extra two cores (8 vs 6) deliver a tangible advantage.

The AMD Ryzen 5 PRO 6650H is the better pick for single-threaded legacy performance and integer-heavy tasks. It beats the Intel chip by 9.7% in Cinebench R15 single-core (236 vs 213) and by 9% in PassMark integer math (62838 vs 57189). For office productivity, spreadsheet crunching, or any workload that uses older, less optimized code, the AMD chip feels snappier. Its 76.8 GB/s memory bandwidth also gives it a theoretical edge in memory-bound scenarios, although the Intel part has no listed bandwidth figure to compare directly.

The data also shows a clear split in architecture philosophy. The Intel chip's 44.1% lead in Cinebench R23 single-core (2119 vs 1471) suggests its Alder Lake architecture extracts more performance from modern, well-optimized instruction streams. The AMD chip's lower power draw (45W TDP vs 55W) makes it the more thermally efficient option for thin-and-light laptops where sustained performance under load matters more than peak burst speed.

Architecture Differences

The two chips come from fundamentally different design schools. The Intel Core i5-12450HX uses the Alder Lake architecture, built on a 10nm process at Intel's own foundry, with a die size of 215 mm². It packs 8 cores and 12 threads, arranged in a hybrid configuration that the data does not break down further. Its L3 cache is 12 MB shared, with 1.25 MB L2 per core and 80 KB L1 per core. Memory support includes both DDR4 and DDR5, running on a dual-channel bus. The integrated GPU is UHD Graphics 710, and it supports PCIe Gen 5 with 20 lanes from the CPU.

The AMD Ryzen 5 PRO 6650H uses the Zen 3+ architecture, built on a 6nm process at TSMC, with a die size of 208 mm². It has 6 cores and 12 threads. Its L3 cache is larger at 16 MB shared, but L2 is smaller at 512 KB per core and L1 is 64 KB per core. It only supports DDR5 memory on a dual-channel bus, but with a specified bandwidth of 76.8 GB/s. The integrated GPU is a Radeon 660M, and PCIe is Gen 4 with 20 lanes. The AMD chip is not multiplier unlocked, while the Intel part is, meaning the Intel chip allows manual overclocking if the laptop BIOS permits it.

The process node difference is significant: 6nm TSMC vs 10nm Intel. This explains the AMD chip's lower TDP of 45W against Intel's 55W, despite having a higher boost clock (4.50 GHz vs 4.40 GHz). The Intel chip compensates with a higher base clock? No, the data shows the AMD chip has a higher base clock of 3.30 GHz versus Intel's 2.40 GHz. The Intel part relies on its extra cores and larger L2 cache to win in multithreaded tests.

Head-to-Head Benchmarks

The biggest single win for the Intel chip is in Cinebench R23 single-core, where it scores 2119 against AMD's 1471, a massive 44.1% margin. This is a modern rendering benchmark that stresses the latest instruction sets, and the Alder Lake architecture clearly handles it better. The Intel chip also wins Cinebench R23 multi-core by 19.1% (11390 vs 9561), confirming its dominance in current-generation rendering workloads.

In PassMark floating-point math, the Intel chip leads by 20.7% (43126 vs 35743). This is a broad test of FPU performance, and the Intel chip's extra cores help it pull ahead. The physics test shows a 29.6% Intel advantage (1086 vs 838), which is a strong indicator for gaming and simulation physics. The Intel chip also wins PassMark single-thread by 7.4% (3340 vs 3110) and multithread by 1.9% (18274 vs 17936).

The AMD chip's wins are concentrated in specific areas. It beats Intel by 10.4% in PassMark data encryption (13518 vs 12110) and by 8.1% in extended instructions (15044 vs 13832). These tests often favor more efficient instruction decoding, which the Zen 3+ architecture provides. In integer math, AMD wins by 9% (62838 vs 57189). The AMD chip also wins both Cinebench R15 tests: 2.5% in multi-core (1550 vs 1512) and 9.7% in single-core (236 vs 213).

The narrowest margins are in PassMark data compression (0.9% Intel win, 219707 vs 217700) and random string sorting (2.1% Intel win, 23306 vs 22823). These are memory-latency sensitive tests, and the AMD chip's higher memory bandwidth (76.8 GB/s) nearly closes the gap despite having fewer cores. The Intel chip wins find prime numbers by just 3.8% (54 vs 52), a negligible difference.

FAQ

Q: Which CPU is faster in modern multi-core rendering?

A: The Intel Core i5-12450HX. It leads in Cinebench R23 multi-core by 19.1% (11390 vs 9561) and in PassMark floating-point math by 20.7% (43126 vs 35743).

Q: Does the AMD chip win any single-core tests?

A: Yes, it wins Cinebench R15 single-core by 9.7% (236 vs 213), but loses Cinebench R23 single-core by a massive 44.1% (1471 vs 2119) and PassMark single-thread by 7.4% (3110 vs 3340).

Q: Is the Intel chip better for gaming physics?

A: Yes, the data shows a 29.6% lead in PassMark physics (1086 vs 838) for the Intel Core i5-12450HX, which is a strong indicator for game physics calculations.

Q: Which CPU has better encryption performance?

A: The AMD Ryzen 5 PRO 6650H wins PassMark data encryption by 10.4% (13518 vs 12110), making it the better choice for workloads that involve heavy data encryption.

Q: What is the core and thread difference?

A: The Intel chip has 8 cores and 12 threads, while the AMD chip has 6 cores and 12 threads. Both support the same thread count, but the Intel part has two more physical cores.

Q: Which CPU is more power-efficient based on the data?

A: The AMD Ryzen 5 PRO 6650H has a lower TDP of 45W compared to the Intel chip's 55W, making it more suitable for thermally constrained laptops.

Where Each One Wins

Intel Core i5-12450HX wins in:

• Modern multi-core rendering (Cinebench R23 multi-core, 19.1% lead)
• Single-core modern performance (Cinebench R23 single-core, 44.1% lead)
• Floating-point math (20.7% lead in PassMark)
• Physics simulation (29.6% lead in PassMark)
• General multithreaded throughput (1.9% lead in PassMark)
• Data compression and string sorting (0.9% and 2.1% leads)
• Prime number finding (3.8% lead)

AMD Ryzen 5 PRO 6650H wins in:

• Legacy single-core tests (Cinebench R15 single-core, 9.7% lead)
• Legacy multi-core (Cinebench R15 multi-core, 2.5% lead)
• Data encryption (10.4% lead in PassMark)
• Extended instruction sets (8.1% lead in PassMark)
• Integer math (9% lead in PassMark)

Specification Differences

| Field | Intel Core i5-12450HX | AMD Ryzen 5 PRO 6650H |

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

| Cores | 8 | 6 |

| Threads | 12 | 12 |

| Base Clock | 2.40 GHz | 3.30 GHz |

| Boost Clock | 4.40 GHz | 4.50 GHz |

| TDP | 55W | 45W |

| Socket | Intel BGA 1964 | AMD Socket FP7 |

| Architecture | Alder Lake | Zen 3+ |

| Process Node | 10 nm (Intel) | 6 nm (TSMC) |

| Die Size | 215 mm² | 208 mm² |

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

| L2 Cache | 1.25 MB (per core) | 512 KB (per core) |

| L3 Cache | 12 MB (shared) | 16 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

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

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

| Integrated Graphics | UHD Graphics 710 | Radeon 660M |

| Multiplier Unlocked | Yes | No |

| Launch MSRP | $284 | Not listed |