AMD Ryzen 5 PRO 8640HS vs AMD Ryzen AI 9 365 Comparison
AMD Ryzen 5 PRO 8640HS
Ryzen AI 9 365
PERFORMANCE BENCHMARKS
Analysis: AMD Ryzen 5 PRO 8640HS vs AMD Ryzen AI 9 365
The AMD Ryzen 5 PRO 8640HS and AMD Ryzen AI 9 365 are both 28-watt mobile processors, but they occupy distinct performance tiers. The Ryzen AI 9 365 delivers a higher average benchmark score of 40048, placing it in the 87th percentile of all CPUs. The Ryzen 5 PRO 8640HS records an average score of 28478, which lands it in the 80th percentile. The Ryzen AI 9 365 wins 14 of the 15 head-to-head comparisons, while the Ryzen 5 PRO 8640HS takes a single, albeit significant, victory in a specific workload.
The Verdict
The data indicates a clear division of roles based on workload type. The AMD Ryzen AI 9 365 is the dominant choice for multi-threaded and most single-threaded tasks. Its larger core count and newer architecture provide substantial leads in nearly every benchmark category, from data compression to physics calculations. The Ryzen 5 PRO 8640HS, however, shows a distinct advantage in one specific test: Cinebench R23 single-core, where it leads by 28.3%. It also has the higher base clock of 3.50 GHz compared to the 365's 2.00 GHz, and a boost clock of 4.90 GHz versus 5.00 GHz.
The Ryzen 5 PRO 8640HS is the pick for scenarios where its particular single-core Cinebench strength is the priority, or where ECC memory support is required. The Ryzen AI 9 365 is the better option for users who need maximum throughput across a broad range of applications, as benchmark results indicate it is faster in 14 out of 15 measured tests. The Ryzen 5 PRO 8640HS is also the only one of the two with ECC memory support, a fact that may be decisive for specific professional use cases.
Architecture Differences
The two processors come from different design generations. The Ryzen 5 PRO 8640HS uses the Zen 4 architecture, codenamed Hawk Point, while the Ryzen AI 9 365 uses the Zen 5 architecture, codenamed Strix Point. The Ryzen AI 9 365 uses a hybrid design of Zen 5 and Zen 5c cores, whereas the 8640HS uses a uniform set of Zen 4 cores. Both are built on a 4 nm process at TSMC.
The die sizes differ substantially. The Ryzen AI 9 365 has a die size of 233 mm², while the Ryzen 5 PRO 8640HS has a die size of 178 mm². The transistor count for the Ryzen 5 PRO 8640HS is listed as 25,000 million, while no transistor count is provided for the Ryzen AI 9 365. The core and thread counts differ as well: the Ryzen AI 9 365 has 10 cores and 20 threads, compared to 6 cores and 12 threads for the Ryzen 5 PRO 8640HS. Cache configurations are also different. The Ryzen 5 PRO 8640HS has 64 KB of L1 cache per core, whereas the Ryzen AI 9 365 has 80 KB per core. Both have 1 MB of L2 cache per core and 16 MB of L3 cache, though the L3 cache on the 8640HS is labeled as shared while the 365's is not.
The processors use different sockets: the Ryzen 5 PRO 8640HS uses AMD Socket FP7, and the Ryzen AI 9 365 uses AMD Socket FP8. The integrated graphics also differ, with the 8640HS featuring a Radeon 760M and the AI 9 365 featuring a Radeon 880M. The AI 9 365 supports both DDR5 and LPDDR5X memory, while the 8640HS supports DDR5 only. Both use dual-channel memory buses and have a memory bandwidth of 89.6 GB/s. The Ryzen 5 PRO 8640HS supports ECC memory, while the Ryzen AI 9 365 does not. PCIe lanes also differ, with the 8640HS offering 20 Gen 4 lanes and the AI 9 365 offering 16 Gen 4 lanes.
Head-to-Head Benchmarks
The head-to-head data shows a pattern of consistent dominance by the Ryzen AI 9 365 in multi-threaded workloads. In Cinebench R15 multicore, the Ryzen AI 9 365 scores 2842 against 1824 for the Ryzen 5 PRO 8640HS, a margin of 35.8%. The Cinebench R23 multicore test shows a much closer result, with the Ryzen AI 9 365 scoring 18698 versus 18104, a 3.2% lead. The PassMark multithread test shows the AI 9 365 ahead by 27.2%, with scores of 29467 and 21465.
The Ryzen AI 9 365 also wins the PassMark single-thread test, scoring 3841 against 3561, a 7.3% lead. The Ryzen 5 PRO 8640HS wins Cinebench R23 single-core, scoring 2555 against 1992, a 28.3% advantage. This is the sole head-to-head win for the 8640HS. In the other single-core test, Cinebench R15 single-core, the AI 9 365 wins 303 to 257, a 15.2% lead.
The PassMark suite reveals the largest performance gaps. The Ryzen AI 9 365 wins data compression by 30.5%, scoring 354510 versus 246446. It wins find prime numbers by 39.3%, scoring 117 versus 71. Physics shows a 38.8% lead for the AI 9 365, with 1704 versus 1043. Floating point math is 31.5% faster on the AI 9 365, at 62802 versus 43019. Integer math is 31.4% faster, at 101831 versus 69839. Extended instructions are 26.3% faster, at 25113 versus 18507. Data encryption is 18.2% faster, at 18297 versus 14962. Random string sorting is 23.4% faster, at 39447 versus 30235.
FAQ
Q: Which processor has a higher average benchmark score?
A: The AMD Ryzen AI 9 365 has a higher average benchmark score of 40048, compared to 28478 for the AMD Ryzen 5 PRO 8640HS.
Q: In which benchmark does the AMD Ryzen 5 PRO 8640HS outperform the AMD Ryzen AI 9 365?
A: The Ryzen 5 PRO 8640HS wins the Cinebench R23 single-core test, scoring 2555 against 1992, a lead of 28.3%.
Q: How many cores and threads does each processor have?
A: The AMD Ryzen 5 PRO 8640HS has 6 cores and 12 threads. The AMD Ryzen AI 9 365 has 10 cores and 20 threads.
Q: Do both processors support ECC memory?
A: No. The AMD Ryzen 5 PRO 8640HS supports ECC memory, while the AMD Ryzen AI 9 365 does not.
Q: What are the architecture and codename for each processor?
A: The AMD Ryzen 5 PRO 8640HS uses the Zen 4 architecture with the codename Hawk Point. The AMD Ryzen AI 9 365 uses the Zen 5 architecture with the codename Strix Point.
Q: What is the difference in the L1 cache size?
A: The AMD Ryzen 5 PRO 8640HS has 64 KB of L1 cache per core, while the AMD Ryzen AI 9 365 has 80 KB of L1 cache per core.
Where Each One Wins
The AMD Ryzen AI 9 365 wins in the vast majority of measured categories. It is the clear leader in multi-threaded performance, as shown by wins in Cinebench R15 multicore, Cinebench R23 multicore, and PassMark multithread. It also shows dominance in specialized math and data tasks, including PassMark floating point math, integer math, data compression, data encryption, extended instructions, find prime numbers, and random string sorting. Its PassMark single-thread score is also higher than the 8640HS.
The AMD Ryzen 5 PRO 8640HS wins in a single head-to-head benchmark: Cinebench R23 single-core. It also has a higher base clock speed of 3.50 GHz, compared to 2.00 GHz for the AI 9 365. The Ryzen 5 PRO 8640HS also offers ECC memory support, which the AI 9 365 does not. These are the specific areas where the 8640HS holds an advantage.
Specification Differences
The two processors differ across several key specifications. The AMD Ryzen 5 PRO 8640HS has 6 cores and 12 threads, while the AMD Ryzen AI 9 365 has 10 cores and 20 threads. The base clock of the 8640HS is 3.50 GHz, while the AI 9 365 has a base clock of 2.00 GHz. The boost clock of the 8640HS is 4.90 GHz, while the AI 9 365 boosts to 5.00 GHz. Both have a TDP of 28.
The 8640HS uses AMD Socket FP7, while the AI 9 365 uses AMD Socket FP8. The architecture is Zen 4 for the 8640HS and Zen 5 for the AI 9 365. The codenames are Hawk Point and Strix Point, respectively. The 8640HS has a die size of 178 mm², while the AI 9 365 has a die size of 233 mm². The 8640HS has a transistor count of 25,000 million, while the AI 9 365 has no listed transistor count.
L1 cache is 64 KB per core for the 8640HS and 80 KB per core for the AI 9 365. Both have 1 MB of L2 cache per core and 16 MB of L3 cache. The 8640HS supports DDR5 memory only, while the AI 9 365 supports DDR5 and LPDDR5X. The 8640HS supports ECC memory, while the AI 9 365 does not. The 8640HS has 20 PCIe Gen 4 lanes, while the AI 9 365 has 16 PCIe Gen 4 lanes. The integrated graphics are Radeon 760M for the 8640HS and Radeon 880M for the AI 9 365. The release dates are 2024-04-15 for the 8640HS and 2024-06-30 for the AI 9 365.