AMD Ryzen 9 PRO 8945HS vs AMD Ryzen AI 5 435 Comparison

The AMD Ryzen 9 PRO 8945HS and the AMD Ryzen AI 5 435 are two mobile processors that target different segments of the laptop market. The database shows a clear performance hierarchy between them, with the Ryzen 9 PRO 8945HS leading across every recorded benchmark. The Ryzen AI 5 435, while newer, occupies a lower performance tier. This analysis walks through the head-to-head results, the architectural differences, and the workload implications of each processor.

Head-to-Head Benchmarks

The recorded data shows a total of 15 benchmark comparisons, and the AMD Ryzen 9 PRO 8945HS wins all 15. The margin of victory varies significantly depending on the workload type, ranging from a narrow 5% lead in single-threaded tests to a dominant 122.1% lead in multi-core rendering.

The largest single delta appears in the Cinebench R23 multi-core test. The Ryzen 9 PRO 8945HS scores 25,165 points, while the Ryzen AI 5 435 scores 11,333 points. This represents a 122.1% advantage for the 8945HS. The Cinebench R23 single-core test also shows a substantial gap, with the 8945HS scoring 3,552 against the 435's 1,816, a 95.6% difference. These two results alone indicate that the 8945HS is designed for sustained, heavy compute loads, while the 435 is positioned for lighter tasks.

The Cinebench R15 results follow a similar pattern. In the multi-core test, the 8945HS scores 2,536 versus 1,686 for the 435, a 50.4% lead. In the single-core test, the scores are 357 and 260 respectively, a 37.3% advantage. The smaller delta in the R15 single-core test compared to R23 single-core suggests that the newer Zen 5 architecture in the 435 closes some of the gap in shorter, less demanding single-thread tasks, but the raw clock speed advantage of the 8945HS still prevails.

PassMark results provide a broader view of everyday computing performance. In data encryption, the 8945HS scores 21,820 against 11,110 for the 435, a 96.4% lead. This is one of the largest percentage gaps in the PassMark suite and indicates a major advantage in cryptographic workloads. Data compression shows a 63.7% lead, with scores of 368,884 versus 225,374. Extended instructions, which covers SIMD and other specialised operations, shows a 71.1% advantage, with 27,714 versus 16,197.

Integer math performance is another area of clear separation. The 8945HS scores 103,390, while the 435 scores 61,026, a 69.4% lead. Floating-point math shows a 56.3% advantage, with scores of 63,490 and 40,627. Prime number finding, a test that stresses the core pipeline and cache hierarchy, shows a 56.9% lead, with 91 versus 58. The multi-threaded PassMark score for the 8945HS is 30,378 versus 19,000 for the 435, a 59.9% difference. The physics test, which simulates rigid body calculations, shows a 33% lead, with 1,430 versus 1,075. Random string sorting, a memory-bound test, shows a 79.5% lead, with 44,668 versus 24,891.

The single-threaded PassMark test is the closest result in the entire comparison. The 8945HS scores 3,920 and the 435 scores 3,734, a margin of only 5%. This suggests that for purely single-threaded, non-sustained workloads, the two processors are much closer than the multi-core results imply. The 435's Zen 5 architecture likely helps it here, but the 8945HS still holds the top spot.

In aggregate, the average benchmark score for the 8945HS is 41,963, placing it in the 88th percentile of all CPUs in the database. The 435 has an average score of 28,128, placing it in the 80th percentile. The nearest rivals for the 8945HS include the Intel Core i7-14700T with an average score of 41,914 (a 0.1% difference) and the AMD Ryzen 5 7400 with 42,055 (a 0.2% difference). The 435's nearest rivals are the Intel Core i5-13490F with 28,185 (a 0.2% difference) and the Intel Core i5-14500T with 28,065 (a 0.2% difference). These rival positions confirm that the 8945HS competes in a higher performance tier, while the 435 sits alongside mid-range desktop and mobile parts.

Architecture Differences

The two processors come from different architectural generations. The AMD Ryzen 9 PRO 8945HS uses the Zen 4 architecture, with the codename Hawk Point. It belongs to the 8000 series and is part of the Ryzen 9 generation. The AMD Ryzen AI 5 435 uses the Zen 5 architecture, with the codename Gorgon Point. It belongs to the Ryzen AI 400 generation. This generation gap explains some of the behavioural differences in the benchmarks, particularly the closer single-thread results.

The core and thread counts differ significantly. The 8945HS has 8 cores and 16 threads, while the 435 has 6 cores and 12 threads. This is a 33% difference in core count and a 33% difference in thread count. The 8945HS also has a much higher base clock of 4.00 GHz versus 2.00 GHz for the 435, and a higher boost clock of 5.20 GHz versus 4.50 GHz. These clock advantages are directly visible in the single-threaded test results.

The cache hierarchy shows structural differences. The 8945HS has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The 435 has 80 KB of L1 cache per core, 1 MB of L2 cache per core, but only 4 MB of L3 cache. The total L3 cache is therefore four times larger on the 8945HS. This larger shared cache likely contributes to the 8945HS's large lead in the random string sorting test, which stresses memory latency and bandwidth.

Both processors use a 4 nm process node from TSMC. However, the 8945HS has a transistor count of 25,000 million and a die size of 178 mm². The database does not record transistor count or die size for the 435. The 8945HS uses the AMD Socket FP7, while the 435 uses the AMD Socket FP8. This means they are not socket-compatible.

The integrated graphics units also differ. The 8945HS includes the Radeon 780M, while the 435 includes the Radeon 840M. The database does not provide benchmark scores for these iGPUs, so any comparison of graphics performance is not possible from the recorded data. The 8945HS has a TDP of 45 watts, while the 435 has a TDP of 28 watts. This power difference is consistent with the 8945HS's higher core count and clock speeds.

Memory support is similar but not identical. Both support DDR5 and use a dual-channel memory bus, with a recorded memory bandwidth of 89.6 GB/s. The 435 additionally supports LPDDR5X memory. Both processors support ECC memory. The PCIe configuration differs: the 8945HS has Gen 4 with 20 lanes (CPU only), while the 435 has Gen 4 with 14 lanes (CPU only).

The release dates are recorded as 2024-04-15 for the 8945HS and 2026-01-04 for the 435. Both processors are listed as Active in production status, and neither has a recorded launch MSRP. Both have a locked multiplier, meaning they are not intended for overclocking. The part numbers are recorded as 100-000001314(FP7r2) and 100-000001386(FP7) for the 8945HS, and 100-000001337 for the 435.

Where Each One Wins

The AMD Ryzen 9 PRO 8945HS wins every recorded benchmark, so the analysis of "where each one wins" is strictly a matter of degree. The 8945HS delivers its largest wins in workloads that scale with core count and cache size. The Cinebench R23 multi-core test, with a 122.1% lead, is the clearest example. This workload is heavily dependent on the number of cores and the efficiency of the memory subsystem. The 8945HS's 8 cores, 16 MB of L3 cache, and higher boost clock all contribute to this result.

Data encryption is another strong area for the 8945HS, with a 96.4% lead. This workload benefits from the higher clock speeds and the larger cache, as encryption algorithms often use lookup tables and repeated memory access patterns. The extended instructions test, with a 71.1% lead, also favours the 8945HS, indicating that its execution units and SIMD capabilities are substantially ahead of the 435's.

The random string sorting test shows a 79.5% lead for the 8945HS. This is a memory latency and cache capacity sensitive workload. The 16 MB of L3 cache on the 8945HS is four times larger than the 4 MB on the 435, which directly explains this result. Integer math shows a 69.4% lead, and data compression shows a 63.7% lead. These are also workloads that benefit from more cores and a larger cache.

For the AMD Ryzen AI 5 435, the narrowest losses are in the single-threaded tests. The PassMark single-thread score is only 5% behind, and the Cinebench R15 single-core score is 37.3% behind. The 435's Zen 5 architecture appears to provide better per-core efficiency, which partially offsets its lower clock speeds. In the Cinebench R23 single-core test, the 95.6% gap is larger, which may indicate that this particular workload is more sensitive to sustained boost clocks rather than peak single-core performance.

The physics test shows the smallest multi-core delta at 33%. This workload may not scale perfectly with core count, or it may be limited by memory bandwidth, which is identical for both processors at 89.6 GB/s. The 435's lower TDP of 28 watts also means it can sustain its clocks under a lighter thermal load, which could explain why the physics test, which may not fully stress all cores, shows a smaller gap.

The Verdict

The recorded data supports a clear verdict. The AMD Ryzen 9 PRO 8945HS is the higher-performance processor in every measured workload. Its 8 cores, 16 threads, higher clocks, and larger cache give it a commanding lead in multi-threaded, memory-intensive, and encryption-heavy tasks. The average benchmark score of 41,963 versus 28,128 confirms this. The 8945HS is the appropriate choice for workloads such as video editing, 3D rendering, software compilation, and any task that uses all available cores. Its 88th percentile ranking also places it above the majority of CPUs in the database.

The AMD Ryzen AI 5 435, with a 28-watt TDP and 6 cores, is a lower-power part. Its single-thread performance is closer to the 8945HS, with only a 5% gap in the PassMark single-thread test. This makes it suitable for general productivity, web browsing, and office applications, where single-core speed is more important than core count. The 435's support for LPDDR5X memory also suggests it is designed for thinner, lighter laptops where power efficiency is a priority. However, its 4 MB L3 cache and lower core count limit its performance in any sustained multi-core workload.

Neither processor has a recorded launch MSRP, so no price comparison is possible. Both are mobile parts with active production status. The 8945HS is the choice for maximum performance, and the 435 is the choice for a balanced, lower-power mobile platform.

FAQ

Q: Which processor has a higher multi-core performance?

A: The AMD Ryzen 9 PRO 8945HS. In the Cinebench R23 multi-core test, it scores 25,165 versus 11,333 for the AMD Ryzen AI 5 435, a 122.1% lead. The PassMark multi-thread score is 30,378 versus 19,000, a 59.9% lead.

Q: How close are the two processors in single-threaded performance?

A: The closest result is in the PassMark single-thread test, where the 8945HS scores 3,920 and the 435 scores 3,734, a 5% difference. In the Cinebench R23 single-core test, the gap is larger, with the 8945HS scoring 3,552 versus 1,816, a 95.6% lead.

Q: What are the core and thread counts for each processor?

A: The 8945HS has 8 cores and 16 threads. The 435 has 6 cores and 12 threads. The 8945HS also has a base clock of 4.00 GHz and a boost clock of 5.20 GHz, compared to 2.00 GHz and 4.50 GHz for the 435.

Q: Which processor has a larger L3 cache?

A: The 8945HS has 16 MB of shared L3 cache, while the 435 has 4 MB of L3 cache. The 8945HS also has 64 KB of L1 cache per core, while the 435 has 80 KB of L1 cache per core. Both have 1 MB of L2 cache per core.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 PRO 8945HS and the AMD Ryzen AI 5 435 support ECC memory. Both also support DDR5 and use a dual-channel memory bus with a recorded bandwidth of 89.6 GB/s. The 435 additionally supports LPDDR5X.

Q: What are the TDPs of the two processors?

A: The 8945HS has a TDP of 45 watts. The 435 has a TDP of 28 watts. The 8945HS uses the AMD Socket FP7, while the 435 uses the AMD Socket FP8.

Specification Differences

The following specifications differ between the two processors, based on the recorded data.

• Cores: 8 (8945HS) vs 6 (435)
• Threads: 16 (8945HS) vs 12 (435)
• Base Clock: 4.00 GHz (8945HS) vs 2.00 GHz (435)
• Boost Clock: 5.20 GHz (8945HS) vs 4.50 GHz (435)
• TDP: 45 W (8945HS) vs 28 W (435)
• Socket: AMD Socket FP7 (8945HS) vs AMD Socket FP8 (435)
• Architecture: Zen 4 (8945HS) vs Zen 5 (435)
• Codename: Hawk Point (8945HS) vs Gorgon Point (435)
• Generation: Ryzen 9, Zen 4 (Hawk Point) (8945HS) vs Ryzen AI 400, Zen 5 / Zen 5c (435)
• Process Node: 4 nm for both, but the 8945HS has 25,000 million transistors and a 178 mm² die size; no transistor or die size data for the 435
• L1 Cache: 64 KB per core (8945HS) vs 80 KB per core (435)
• L3 Cache: 16 MB shared (8945HS) vs 4 MB (435)
• Memory Support: DDR5 (8945HS) vs DDR5, LPDDR5X (435)
• PCIe: Gen 4, 20 Lanes (CPU only) (8945HS) vs Gen 4, 14 Lanes (CPU only) (435)
• Integrated Graphics: Radeon 780M (8945HS) vs Radeon 840M (435)
• Release Date: 2024-04-15 (8945HS) vs 2026-01-04 (435)
• Part Number: 100-000001314(FP7r2), 100-000001386(FP7) (8945HS) vs 100-000001337 (435)