AMD Ryzen 9 8945HX vs AMD Ryzen AI 7 445 Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 8945HX records an average benchmark score of 76212, while the AMD Ryzen AI 7 445 records 26936. The 8945HX sits in the 95th percentile of all CPUs, whereas the AI 7 445 sits in the 79th percentile.

Q: How much faster is the Ryzen 9 8945HX in multi-core rendering?

A: In Cinebench R23 multicore, the 8945HX scores 42713 against 10590 for the AI 7 445, a 303.3% advantage. In Cinebench R15 multicore, the gap is 149.9%, with scores of 4305 and 1723 respectively.

Q: Are the single-core results closer than the multi-core results?

A: Yes. In PassMark single-thread testing, the 8945HX scores 3907 versus 3591 for the AI 7 445, a delta of only 8.8%. The Cinebench R23 single-core gap is larger at 233.9%, with scores of 6030 and 1806.

Q: What architecture does each processor use?

A: The Ryzen 9 8945HX uses Zen 4 with the Dragon Range codename, built on a 5 nm TSMC process. The Ryzen AI 7 445 uses Zen 5 / Zen 5c with the Gorgon Point codename, built on a 4 nm TSMC process.

Q: Which processor has more cores and threads?

A: The Ryzen 9 8945HX has 16 cores and 32 threads. The Ryzen AI 7 445 has 6 cores and 12 threads.

Q: What are the power envelopes of these two mobile chips?

A: The Ryzen 9 8945HX has a TDP of 55 watts. The Ryzen AI 7 445 has a TDP of 28 watts.

Architecture Differences

The Ryzen 9 8945HX belongs to the 8000 series and uses the Zen 4 architecture under the Dragon Range codename. It is manufactured on a 5 nm process at TSMC, with a transistor count of 13,140 million and a die size of 2x 71 mm². The Ryzen AI 7 445 belongs to the Ryzen AI 400 generation and uses Zen 5 / Zen 5c under the Gorgon Point codename. It is manufactured on a 4 nm process at TSMC, and the database does not list transistor or die size figures for it.

Cache configurations differ sharply. The 8945HX provides 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of L3 cache. The AI 7 445 provides 80 KB of L1 per core, 1 MB of L2 per core, and only 4 MB of L3 cache. That 60 MB difference in L3 is one of the largest structural gaps between the two parts, and it directly affects workloads with large working sets.

Memory paths also diverge. The 8945HX supports DDR5 only with dual-channel operation and a memory bandwidth of 83.2 GB/s. The AI 7 445 supports both DDR5 and LPDDR5X with dual-channel operation and a slightly higher memory bandwidth of 89.6 GB/s. The AI 7 445 also supports ECC memory, while the 8945HX does not.

PCIe connectivity differs by a full generation. The 8945HX uses Gen 5 with 28 lanes from the CPU, while the AI 7 445 uses Gen 4 with 14 lanes. Integrated graphics are different as well: the 8945HX carries a Radeon 610M, and the AI 7 445 carries a Radeon 840M. Sockets are not interchangeable, with the 8945HX on AMD Socket FL1 and the AI 7 445 on AMD Socket FP8.

The 8945HX has an unlocked multiplier, while the AI 7 445 does not. Clock behavior reflects the different positioning: the 8945HX runs a 2.50 GHz base and 5.40 GHz boost, while the AI 7 445 runs a 2.00 GHz base and 4.60 GHz boost. The production status is Active for both, with release dates of 2025-04-22 for the 8945HX and 2026-01-04 for the AI 7 445.

The Verdict

The recorded data points to a clear split in intended use. The Ryzen 9 8945HX dominates every benchmark in the database, winning all 15 head-to-head comparisons. Its average benchmark score of 76212 places it in the 95th percentile, and its nearest rivals include the Intel Core Ultra 9 285HX at 76155 with a 0.1% delta, the AMD EPYC Embedded 8224P at 76492 with a 0.4% delta, and the AMD Ryzen Threadripper PRO 9945WX at 76513 with a 0.4% delta. The 8945HX is competing in the upper tier of all CPUs, including workstation-class parts.

The Ryzen AI 7 445, by contrast, averages 26936 and sits in the 79th percentile. Its nearest rivals are the Intel Core i7-1370P at 26900 with a 0.1% delta, the AMD Ryzen 5 7545U at 26849 with a 0.3% delta, and the AMD Ryzen 7 5700G at 27051 with a 0.4% delta. The AI 7 445 is positioned in a mainstream mobile bracket, not a performance flagship bracket.

For buyers who need maximum multi-threaded throughput, the 8945HX is the only choice between these two. It delivers a 303.3% advantage in Cinebench R23 multicore and a 288.2% advantage in PassMark data encryption. For users who prioritize portability and power efficiency, the AI 7 445 offers a 28-watt TDP against 55 watts, a newer 4 nm process, and ECC memory support. The data does not show a scenario where the AI 7 445 wins a performance comparison, so the selection depends on power budget and feature requirements rather than raw speed.

Specification Differences

The two processors differ on nearly every specification field. Core count is 16 for the 8945HX versus 6 for the AI 7 445. Thread count is 32 versus 12. Base clock is 2.50 GHz versus 2.00 GHz, and boost clock is 5.40 GHz versus 4.60 GHz. TDP is 55 watts versus 28 watts.

The 8945HX uses AMD Socket FL1, while the AI 7 445 uses AMD Socket FP8. Architecture is Zen 4 for the 8945HX and Zen 5 / Zen 5c for the AI 7 445. Codename is Dragon Range versus Gorgon Point. Process node is 5 nm versus 4 nm. Transistor count is 13,140 million for the 8945HX, with no listed figure for the AI 7 445. Die size is 2x 71 mm² for the 8945HX, with no listed figure for the AI 7 445.

L1 cache is 64 KB per core for the 8945HX and 80 KB per core for the AI 7 445. L2 cache is 1 MB per core for both. L3 cache is 64 MB for the 8945HX and 4 MB for the AI 7 445. Memory support is DDR5 for the 8945HX and DDR5 plus LPDDR5X for the AI 7 445. Memory bandwidth is 83.2 GB/s versus 89.6 GB/s. ECC support is absent on the 8945HX and present on the AI 7 445.

PCIe is Gen 5 with 28 lanes for the 8945HX versus Gen 4 with 14 lanes for the AI 7 445. Integrated graphics are Radeon 610M versus Radeon 840M. The 8945HX has an unlocked multiplier; the AI 7 445 does not. Release dates are 2025-04-22 and 2026-01-04, respectively. Neither processor has a listed launch MSRP in the database.

Head-to-Head Benchmarks

The 8945HX wins all 15 recorded head-to-head comparisons, so the analysis centers on the size of each margin. The largest single delta appears in PassMark find prime numbers, where the 8945HX scores 262 against 56, a 367.9% advantage. This result suggests a massive throughput difference in integer-heavy single-threaded loops.

Cinebench results follow a similar pattern. In Cinebench R23 multicore, the 8945HX scores 42713 against 10590, a 303.3% delta. In Cinebench R23 singlecore, the 8945HX scores 6030 against 1806, a 233.9% delta. Cinebench R15 multicore shows 4305 versus 1723 at 149.9%, and Cinebench R15 singlecore shows 607 versus 254 at 139%. The singlecore Cinebench gap is notably larger than the PassMark single-thread gap, which indicates that benchmark methodology matters when interpreting these results.

PassMark data compression shows 677755 versus 215812, a 214% delta. Data encryption shows 40836 versus 10519, a 288.2% delta. Extended instructions show 49823 versus 15826, a 214.8% delta. Floating point math shows 117453 versus 39362, a 198.4% delta. Integer math shows 195180 versus 58332, a 234.6% delta. Multithread shows 51405 versus 18115, a 183.8% delta. Physics shows 2168 versus 976, a 122.1% delta. Random string sorting shows 78781 versus 23488, a 235.4% delta.

The narrowest margin is PassMark single-thread, where the 8945HX scores 3907 against 3591, a delta of only 8.8%. That is the only head-to-head result under 100%, and it confirms that the 8945HX's advantage shrinks dramatically when only one thread is active. The single-thread PassMark result appears twice in the database under two test names, single_thread and singlethread, with identical scores and the same 8.8% delta.

Where Each One Wins

The Ryzen 9 8945HX wins in every workload category recorded in the database. Its largest advantages appear in prime number finding, data encryption, and Cinebench R23 multicore, all of which exceed 280%. These are heavily multi-threaded or latency-sensitive workloads that benefit from the 16-core, 32-thread configuration and the 64 MB L3 cache. The 8945HX also wins the lighter single-thread PassMark test, though by a much smaller margin of 8.8%.

The Ryzen AI 7 445 does not win a single recorded benchmark, but the data does define where it is competitive. Its PassMark single-thread score of 3591 is within reach of the 8945HX's 3907, suggesting that in lightly threaded daily workloads, the user experience may be closer than the average benchmark score implies. The AI 7 445 also has structural advantages that are not captured in the performance benchmarks: a 28-watt TDP, a 4 nm process node, ECC memory support, LPDDR5X memory support, and a slightly higher memory bandwidth of 89.6 GB/s.

The use-case split is therefore about platform characteristics rather than benchmark wins. The 8945HX is the choice for compute-heavy mobile workstations where multi-threaded performance, PCIe Gen 5 connectivity, and unlocked multiplier support matter. The AI 7 445 is the choice for systems where power draw, ECC memory, and LPDDR5X support are priorities, and where the performance penalty in multi-threaded workloads is acceptable. The data does not identify any benchmark where the AI 7 445 outperforms the 8945HX, so the decision rests on the non-performance specifications and the 55-watt versus 28-watt power envelope.