AMD Ryzen 5 PRO 8645HS vs Intel Core 9 273PQE Comparison

The benchmark data presents a clear hierarchy between the AMD Ryzen 5 PRO 8645HS and the Intel Core 9 273PQE. The Intel processor wins every single head-to-head comparison recorded in the database, 17 wins to 0. The average benchmark score for the Intel Core 9 273PQE is 66,099, placing it at the 93rd percentile of all CPUs, while the AMD Ryzen 5 PRO 8645HS averages 30,879, sitting at the 82nd percentile. The Intel part is a desktop-class processor with a 125 TDP and 12 cores, while the AMD is a 45 TDP mobile chip with 6 cores, a gap that shows across every workload category.

Head-to-Head Benchmarks

The Intel Core 9 273PQE dominates in raw multi-threaded workloads. In Cinebench R23 multi-core, the Intel scores 39,190 against the AMD's 19,742, a delta of -49.6% from the perspective of the AMD part, meaning the Intel is roughly 98.5% faster. Cinebench R20 multi-core shows the same pattern: Intel at 16,459 versus AMD at 8,291, again a -49.6% delta. Cinebench R15 multi-core follows with Intel at 3,950 and AMD at 1,989, a -49.6% delta. The consistency of these percentages across Cinebench versions indicates a stable performance ratio rather than a workload-specific anomaly.

Single-threaded performance also favors Intel, though by a smaller margin. Cinebench R23 single-core shows Intel at 5,532 and AMD at 2,787, a -49.6% delta. Cinebench R20 single-core has Intel at 2,323 and AMD at 1,170, also -49.6%. Cinebench R15 single-core shows Intel at 557 and AMD at 280, a -49.7% delta. The PassMark single-thread test narrows the gap considerably: Intel scores 4,573 versus AMD's 3,858, a -15.6% delta. This smaller single-thread delta suggests that the Intel advantage, while still decisive, is more pronounced when all cores are engaged.

Math and encryption workloads show the largest deltas. PassMark floating point math has Intel at 125,546 and AMD at 45,481, a -63.8% delta. PassMark find prime numbers shows Intel at 198 and AMD at 73, a -63.1% delta. Integer math follows with Intel at 164,629 and AMD at 72,740, a -55.8% delta. Data compression gives Intel 585,752 against AMD's 265,826, a -54.6% delta. The Intel part also wins physics, scoring 2,754 versus 1,208, a -56.1% delta, and extended instructions, 38,743 versus 21,212, a -45.2% delta.

The narrowest Intel win in the entire dataset is PassMark random string sorting, where Intel scores 53,167 and AMD scores 35,472, a -33.3% delta. Data encryption is also relatively close in percentage terms, with Intel at 29,636 and AMD at 17,387, a -41.3% delta. PassMark multithread shows Intel at 46,107 and AMD at 23,569, a -48.9% delta. Every recorded test, from Cinebench rendering to PassMark compression, points in the same direction: the Intel Core 9 273PQE is the faster processor across the board.

Architecture Differences

The two processors come from different design philosophies. The AMD Ryzen 5 PRO 8645HS uses the Zen 4 architecture under the Hawk Point codename, built on a 4 nm process at TSMC. It packs 25,000 million transistors into a 178 mm² die. The Intel Core 9 273PQE uses the Bartlett Lake codename, built on a 10 nm process at Intel. The database lists no transistor count or die size for the Intel part.

Core counts differ sharply. The AMD has 6 cores and 12 threads. The Intel has 12 cores and 24 threads, exactly double the core and thread count. Base clocks favor the AMD at 4.30 GHz versus Intel's 3.40 GHz, but boost clocks reverse the order: Intel reaches 5.90 GHz while AMD tops out at 5.00 GHz. The TDP gap is substantial, with AMD rated at 45 and Intel at 125, reflecting the Intel desktop segment versus AMD mobile positioning.

Cache hierarchies also differ. The AMD part uses 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Intel part uses 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The Intel L3 cache is more than double the AMD's, at 36 MB versus 16 MB.

Memory support diverges as well. The AMD supports DDR5 only, while the Intel supports both DDR4 and DDR5. Both run dual-channel memory with identical peak bandwidth of 89.6 GB/s, and both support ECC memory. PCIe generations differ: AMD provides Gen 4 with 20 lanes (CPU only), while Intel provides Gen 5 with 16 lanes (CPU only). Integrated graphics differ, with AMD using Radeon 760M and Intel using UHD Graphics 770.

Sockets and launch dates separate the platforms further. The AMD uses AMD Socket FP7, while the Intel uses Intel Socket 1700. The AMD release date is 2024-04-15, and the Intel release date is 2026-03-08. The Intel part has a recorded launch MSRP of $589. Both processors have locked multipliers, and both are listed as Active in production status. The AMD part numbers are 100-000001315(FP7r2) and 100-000001388(FP7), while the Intel part number is SA4Q9.

Where Each One Wins

The Intel Core 9 273PQE wins every benchmark category recorded in the database. There is no test in the head-to-head set where the AMD Ryzen 5 PRO 8645HS takes the lead. The Intel part is ahead in all Cinebench R15, R20, and R23 multi-core and single-core tests. It is ahead in all PassMark tests: data compression, data encryption, extended instructions, find prime numbers, floating point math, integer math, multithread, physics, random string sorting, and single thread.

The AMD's closest relative performance appears in single-threaded PassMark testing, where the delta is -15.6%, the smallest gap in the dataset. The AMD also comes relatively closer in random string sorting, with a -33.3% delta, and data encryption, with a -41.3% delta. These are still clear Intel wins, but the margins are less extreme than the floating point math and find prime numbers tests, where the deltas exceed -63%.

Given the AMD's 45 TDP and mobile market segment, its performance profile is consistent with a power-efficient mobile processor. The Intel part, with a 125 TDP and desktop market segment, delivers roughly double the multi-threaded performance in most Cinebench tests while consuming significantly more power. The percentile rankings reflect this: Intel at the 93rd percentile versus AMD at the 82nd percentile. The nearest rivals listed for the AMD include the AMD Ryzen 7 8700F at 30,746 average score (0.4% delta), the Intel Core i7-13700TE at 31,028 (-0.5%), the AMD Ryzen 9 8945HS at 31,074 (-0.6%), and the Intel Core i7-12700F at 31,081 (-0.6%). For the Intel, nearest rivals include the Intel Core Ultra 5 250KF Plus at 66,159 (-0.1%), the AMD Ryzen 9 7950X3D at 65,914 (0.3%), the Intel Core Ultra 5 250K Plus at 66,855 (-1.1%), and the AMD EPYC 4465P at 66,925 (-1.2%).

The Verdict

The data supports only one conclusion for raw performance: the Intel Core 9 273PQE is the superior processor in every measured metric. It wins all 17 head-to-head benchmarks, holds a higher average benchmark score of 66,099 versus 30,879, and sits at the 93rd percentile of all CPUs versus the AMD's 82nd. The Intel part delivers more than double the multi-threaded Cinebench R23 score (39,190 versus 19,742) and nearly double the PassMark multithread score (46,107 versus 23,569).

The AMD Ryzen 5 PRO 8645HS is a mobile processor with a 45 TDP, 6 cores, and 12 threads. Its performance is competitive within its mobile segment, as shown by its nearest rivals all clustering within 0.6% of its average score. The Intel Core 9 273PQE is a desktop processor with a 125 TDP, 12 cores, and 24 threads, and its nearest rivals include high-end parts like the AMD Ryzen 9 7950X3D and the AMD EPYC 4465P. The performance gap between the two reviewed processors is consistent with their different market segments and power envelopes.

For workloads that depend on single-threaded speed, the Intel part still wins, but the margin narrows to 15.6% in PassMark single-thread testing. For multi-threaded rendering, math, and compression workloads, the Intel advantage grows to between 48.9% and 63.8%. The AMD part does not win a single category, so any selection between these two must favor the Intel Core 9 273PQE on performance grounds. The AMD's advantage lies in its mobile form factor and lower power draw, not in benchmark scores.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 9 273PQE has 12 cores and 24 threads. The AMD Ryzen 5 PRO 8645HS has 6 cores and 12 threads.

Q: What is the average benchmark score difference between the two?

A: The Intel Core 9 273PQE has an average benchmark score of 66,099, while the AMD Ryzen 5 PRO 8645HS has an average of 30,879. The Intel part sits at the 93rd percentile of all CPUs, and the AMD sits at the 82nd percentile.

Q: How large is the Intel lead in Cinebench R23 multi-core?

A: The Intel scores 39,190 in Cinebench R23 multi-core versus the AMD's 19,742, a -49.6% delta from the AMD's perspective, meaning the Intel is roughly 98.5% faster.

Q: Which test shows the smallest performance gap?

A: The PassMark single-thread test shows the smallest gap, with Intel at 4,573 and AMD at 3,858, a -15.6% delta. The same result appears for passmark_singlethread.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 5 PRO 8645HS and the Intel Core 9 273PQE have ECC memory support enabled.

Q: What are the memory bandwidth figures for each?

A: Both processors have a dual-channel memory bus with 89.6 GB/s bandwidth. The AMD supports DDR5 only, while the Intel supports both DDR4 and DDR5.

Specification Differences

| Specification | AMD Ryzen 5 PRO 8645HS | Intel Core 9 273PQE |

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

| Cores | 6 | 12 |

| Threads | 12 | 24 |

| Base clock | 4.30 GHz | 3.40 GHz |

| Boost clock | 5.00 GHz | 5.90 GHz |

| TDP | 45 | 125 |

| Socket | AMD Socket FP7 | Intel Socket 1700 |

| Codename | Hawk Point | Bartlett Lake |

| Process node | 4 nm | 10 nm |

| Foundry | TSMC | Intel |

| Transistors | 25,000 million | null |

| Die size | 178 mm² | null |

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

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

| L3 cache (shared) | 16 MB | 36 MB |

| Memory support | DDR5 | DDR4, DDR5 |

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated graphics | Radeon 760M | UHD Graphics 770 |

| Market segment | Mobile | Desktop |

| Release date | 2024-04-15 | 2026-03-08 |

| Launch MSRP | null | $589 |

| Part number | 100-000001315(FP7r2), 100-000001388(FP7) | SA4Q9 |