AMD Ryzen 9 8945HX vs AMD Ryzen AI Embedded P132 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep: the AMD Ryzen 9 8945HX wins all 11 head-to-head benchmark comparisons against the AMD Ryzen AI Embedded P132. The margin is not uniform, however, and the distribution of deltas tells a more interesting story than the raw win count alone.

The largest single advantage appears in passmark_find_prime_numbers, where the 8945HX scores 262 against 57 for the P132, a delta of 359.6%. This workload, which stresses integer-heavy prime calculation loops, amplifies the core-count and clock-speed differences between the two parts more than any other test in the set. The 8945HX also dominates passmark_data_encryption at 40836 versus 11444, a 256.8% gap, and passmark_integer_math at 195180 versus 62249, a 213.5% gap. These three results cluster in the same neighborhood, suggesting that the 8945HX's advantage scales strongly with raw parallel integer throughput.

The multi-core and throughput tests follow a similar pattern. In passmark_multithread, the 8945HX records 51405 against 19262, a 166.9% lead. Passmark_data_compression shows 677755 versus 230437, a 194.1% margin. Passmark_extended_instructions delivers 49823 versus 16520, a 201.6% gap. Passmark_random_string_sorting lands at 78781 versus 25181, a 212.9% delta. Passmark_floating_point_math rounds out the high-margin group at 117453 versus 42248, a 178% advantage. Every one of these tests places the 8945HX at least 112% ahead.

The narrowest victory is in single-thread performance. The 8945HX scores 3907 on passmark_single_thread, while the P132 scores 3713, a delta of just 5.2%. The same result appears for passmark_singlethread, which is the same measurement recorded twice in the database. This is a crucial finding: when both processors are limited to a single core, the 8945HX is only marginally faster. The 5.2% gap is tiny compared to the triple-digit deltas seen elsewhere, which indicates that the 8945HX's overall benchmark supremacy comes almost entirely from its greater core count and higher boost clock, not from a fundamentally faster single-core architecture.

The physics test sits between these extremes. Passmark_physics records 2168 for the 8945HX and 1022 for the P132, a 112.1% lead. This workload is often associated with simulation and rigid-body dynamics, and it shows the 8945HX at roughly double the P132's performance, consistent with the pattern of multithreaded scaling.

The average benchmark score in the database reinforces the gap. The 8945HX holds an average of 76212, while the P132 averages 37804. The percentile ranks also differ meaningfully: the 8945HX sits at the 95th percentile among all CPUs, whereas the P132 sits at the 86th percentile. These aggregate figures place the two processors in different performance tiers entirely.

Where Each One Wins

There are no benchmark categories where the P132 comes out ahead. The winsA count of 11 and winsB count of 0 confirm that the 8945HX takes every recorded workload. However, the size of the margin matters for practical interpretation.

The 8945HX is the clear choice for any workload that can use many threads. Its 16 cores and 32 threads, combined with a boost clock of 5.40 GHz, produce massive leads in integer math, floating point math, data compression, encryption, and random string sorting. The passmark_multithread score of 51405 versus 19262 shows that the 8945HX delivers roughly 2.7 times the multithreaded throughput of the P132. For compilation, rendering, video encoding, and scientific computing, the database points squarely at the 8945HX.

The P132, by contrast, has no winning category, but its single-thread score of 3713 is close enough to the 8945HX's 3907 that the two are nearly comparable in lightly threaded tasks. The 5.2% delta means that for simple everyday operations that rely on one or two cores, the user experience would be similar. The P132 also draws substantially less power, with a 28 W TDP against 55 W for the 8945HX, and it supports ECC memory, which the 8945HX does not. These are not benchmark wins, but they define a different usage profile.

The P132's passmark_physics score of 1022 is roughly half the 8945HX's 2168, which places it in a lower tier for physics simulation. The data compression score of 230437 is also respectable in absolute terms, but it trails the 8945HX by 194.1%. The P132's best relative performance is in single-threaded work, where its Zen 5 / Zen 5c architecture and 4.50 GHz boost clock keep it within striking distance.

FAQ

Q: Which processor wins the most benchmark comparisons?

A: The AMD Ryzen 9 8945HX wins all 11 head-to-head comparisons in the database. The AMD Ryzen AI Embedded P132 records 0 wins.

Q: What is the largest performance gap between the two?

A: The largest gap is in passmark_find_prime_numbers, where the 8945HX scores 262 against 57 for the P132, a delta of 359.6%.

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

A: The 8945HX scores 3907 on passmark_single_thread, while the P132 scores 3713, a delta of only 5.2%. This is the narrowest margin in the head-to-head set.

Q: Do the two processors support the same memory types?

A: No. The 8945HX supports DDR5 only, while the P132 supports both DDR5 and LPDDR5X. Both use dual-channel memory buses.

Q: Which processor has ECC memory support?

A: The P132 supports ECC memory. The 8945HX does not.

Q: How do their average benchmark scores compare?

A: The 8945HX has an average benchmark score of 76212, while the P132 averages 37804. The 8945HX sits at the 95th percentile among all CPUs, and the P132 sits at the 86th percentile.

Specification Differences

The two processors differ across nearly every major specification field. The 8945HX uses 16 cores and 32 threads, while the P132 uses 6 cores and 12 threads. Base clocks are 2.50 GHz for the 8945HX and 2.00 GHz for the P132. Boost clocks are 5.40 GHz and 4.50 GHz, respectively. The TDP differs substantially: 55 W for the 8945HX, 28 W for the P132.

The sockets are different. The 8945HX uses AMD Socket FL1, while the P132 uses AMD Socket FP8. The process nodes also differ: the 8945HX is built on a 5 nm process, and the P132 on a 4 nm process. Both are fabricated by TSMC. The 8945HX has a transistor count of 13,140 million and a die size of 2x 71 mm², while the P132 has no transistor count or die size recorded in the database.

Cache configurations diverge significantly. The 8945HX has 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of L3. The P132 has 80 KB of L1 per core, 1 MB of L2 per core, and only 4 MB of L3. Memory bandwidth is higher on the P132 at 89.6 GB/s, compared to 83.2 GB/s for the 8945HX, despite the 8945HX having far more cache.

PCIe support differs as well. The 8945HX offers Gen 5 with 28 lanes (CPU only), while the P132 offers Gen 4 with 14 lanes (CPU only). The integrated graphics are different: the 8945HX uses Radeon 610M, and the P132 uses Radeon 840M. The 8945HX has an unlocked multiplier, while the P132 does not. The 8945HX has a part number of 100-000001848, while the P132's part number is listed as unknown.

Architecture Differences

The 8945HX belongs to the 8000 series and is built on the Zen 4 architecture, with the codename Dragon Range. Its generation is listed as Ryzen 9 (Zen 4 (Dragon Range)). The P132 belongs to the Ryzen AI Embedded line and uses the codename Gorgon Point, with its generation listed as Ryzen AI Embedded (Zen 5 / Zen 5c). The architecture field for the P132 is not specified, but the generation string indicates a hybrid of Zen 5 and Zen 5c cores.

The process node difference is notable: 5 nm for the 8945HX versus 4 nm for the P132. Both are TSMC parts, but the newer node on the P132 allows for a lower TDP of 28 W against 55 W, while still offering a respectable 4.50 GHz boost clock.

Cache architecture is one of the most striking differences. The 8945HX carries 64 MB of L3 cache, which is 16 times the 4 MB found on the P132. This large L3 pool is typical of high-core-count desktop-derived mobile processors and provides a huge advantage in workloads that repeatedly access shared data. The P132's per-core L1 is larger at 80 KB per core versus 64 KB per core, but its L3 deficit is so large that the overall cache profile strongly favors the 8945HX.

Memory support also differs at a system level. The 8945HX supports DDR5 only, with dual-channel access and 83.2 GB/s bandwidth. The P132 supports DDR5 and LPDDR5X, also dual-channel, with 89.6 GB/s bandwidth. The P132 also supports ECC memory, a feature absent from the 8945HX. ECC support makes the P132 more suitable for error-sensitive embedded and edge workloads.

PCIe generation and lane counts reflect the different positioning. The 8945HX provides Gen 5 connectivity with 28 lanes, which supports high-bandwidth add-in devices. The P132 provides Gen 4 with 14 lanes, a more modest allocation appropriate for embedded systems with fewer expansion requirements.

The integrated graphics differ as well: Radeon 610M on the 8945HX versus Radeon 840M on the P132. The Radeon 840M is a newer graphics block, consistent with the P132's newer process node and Zen 5 generation. The 8945HX's unlocked multiplier is a distinguishing feature for enthusiasts, while the P132's locked multiplier aligns with its embedded-market focus.

The Verdict

The data supports a clear split by use case. The AMD Ryzen 9 8945HX is the higher-performance processor in every recorded benchmark. Its 16 cores, 32 threads, 5.40 GHz boost clock, and 64 MB of L3 cache produce leads of 112% to 359.6% across multithreaded workloads. The single-thread gap is small at 5.2%, but the aggregate average score of 76212 versus 37804 places the 8945HX at the 95th percentile, versus the 86th percentile for the P132. For any workload that scales across cores, the 8945HX is the stronger part.

The P132, however, has its own profile. It draws 28 W compared to 55 W, supports ECC memory, uses a newer 4 nm process, and offers LPDDR5X support. Its 6 cores and 12 threads with a 4.50 GHz boost clock deliver a single-thread score of 3713, close to the 8945HX's 3907. The database shows a processor that trades raw throughput for efficiency and reliability features, which suits embedded deployments and power-constrained systems.

The nearest rivals in the database reinforce the 8945HX's positioning. Its average score of 76212 sits within 0.1% of the Intel Core Ultra 9 285HX at 76155, and within 0.6% of the AMD Ryzen 9 9950X3D at 75779. The P132, by contrast, averages 37804, within 0.1% of the AMD Ryzen AI 5 PRO 435 at 37762 and within 0.3% of the AMD Ryzen AI 9 HX 370 at 37904. These clusters show that the 8945HX competes among flagship mobile and desktop parts, while the P132 competes in the mid-range embedded tier.

The verdict from the data is straightforward: the 8945HX dominates in computational performance, especially multithreaded, and the P132 offers a lower-power, ECC-capable alternative with a much smaller single-thread deficit. Users needing maximum compute should select the 8945HX. Users prioritizing power efficiency, ECC memory, or LPDDR5X support should select the P132.