AMD Ryzen AI 9 HX PRO 375

The AMD Ryzen AI 9 HX PRO 375 is a 12-core, 24-thread mobile processor built on the Zen 5 architecture, codenamed Strix Point, and fabricated on TSMC's 4 nm process. With a base clock of 2000 MHz and a boost clock of 5100 MHz, this chip targets high-performance mobile computing, backed by a 92nd percentile ranking among all tested CPUs. Its average benchmark score of 46773 places it in a tight competitive cluster, where the data shows performance parity with several desktop and mobile heavyweights.

Single-Thread vs Multi-Thread Behavior

The Ryzen AI 9 HX PRO 375 demonstrates a pronounced split between single-thread and multi-thread capabilities, a distinction that matters for real-world workload planning. In Cinebench R23, the processor scores 4027 points in the single-core test, a figure that reflects strong per-core efficiency from the Zen 5 architecture. This score is notably high for a mobile part, suggesting that lightly threaded applications, such as web browsing, office productivity, and legacy software, will see responsive performance without relying on many active cores.

Conversely, the multi-core results reveal a different character. The same Cinebench R23 test yields a multi-core score of 28529, which is roughly 7.1 times the single-core score. This scaling factor is substantial but not linear, indicating that the 12-core/24-thread configuration is effective for parallel workloads, yet the chip does not double performance with core count alone. The Cinebench R20 results corroborate this: a single-core score of 1691 against a multi-core score of 11982, a ratio of about 7.1. Similarly, Cinebench R15 shows 405 single-core and 2875 multi-core, a 7.1 multiplier. This consistent ratio across versions implies that the processor's multi-threaded gains are limited by memory bandwidth, which is listed at 89.6 GB/s, and the shared 16 MB L3 cache, rather than by core count.

For real workloads, this split means the processor excels in mixed scenarios. Content creation tasks like video editing or 3D rendering, which use multiple cores, will see strong throughput, while the high single-thread score ensures that user interface interactions and pre-processing stages remain snappy. The PassMark suite reinforces this duality: single-thread score is 3839, while multithread score is 33564, an 8.7 times difference. This larger multiplier in PassMark suggests that some of its workloads are more cache- or memory-resident, but the overall pattern is clear, this is a balanced chip with a slight bias toward multi-threaded execution.

How It Compares

Against the Intel Core i7-14700HX, the Ryzen AI 9 HX PRO 375 shows near-identical average scores. The rival posts an average of 46795, while this chip scores 46773, a difference of just 0%, indicating that in aggregate benchmark terms, they are statistically indistinguishable. The Intel part brings more cores on paper, but the data shows no practical advantage in the measured suite.

The Intel Core i9-13900HX is another close competitor, with an average score of 46613. The Ryzen chip is 0.3% ahead, a margin that is within run-to-run variance. This is noteworthy because the i9-13900HX is a high-power flagship from a previous generation, and the Ryzen AI 9 HX PRO 375, with a 28 W TDP, matches its output. That suggests the architecture delivers comparable performance at a lower thermal envelope.

The AMD Ryzen 9 5900, a desktop part, has an average score of 46971, which is 0.4% higher than the Ryzen AI 9 HX PRO 375. This is the only rival with a negative delta for the subject chip, meaning the desktop processor holds a slight edge. The margin is trivial, but it shows that the mobile chip trades blows with a desktop model from an older generation.

Finally, the Intel Core Ultra 7 265T posts an average of 46468, which is 0.7% lower than the Ryzen AI 9 HX PRO 375. This is the largest delta among the listed rivals, though still small. The Ultra 7 265T appears to be a lower-power part, so the Ryzen chip's advantage suggests it maintains higher sustained performance in the test suite.

Benchmark Performance

Delving into specific benchmarks, the Ryzen AI 9 HX PRO 375 shows consistent strength in Cinebench tests. In Cinebench R23 multi-core, the score of 28529 is the highest multi-core result in the pack, though rival scores are not individually listed for each test. The single-core R23 score of 4027 indicates that this chip would likely outperform the Intel rivals in per-thread tasks, given that Intel's hybrid architectures often sacrifice single-thread for multi-thread. The PassMark data provides more granularity: integer math scores 120604, floating-point math scores 74296, and extended instructions (SIMD) scores 28947. These figures suggest the processor is particularly adept at integer-heavy workloads like code compilation or spreadsheet calculations, while floating-point performance is solid but less exceptional.

The data compression score of 411610 is a standout, indicating strong performance for archiving or file manipulation tasks. Data encryption scores 21311, which is moderate, and find prime numbers scores 121, a low figure that suggests the chip is less optimized for pure integer loops without parallelization. Random string sorting scores 45628, reflecting good memory and cache behavior for sorting algorithms. Physics score of 1867 in PassMark is low, which could be a driver for the overall average being below the Ryzen 9 5900. The average benchmark score of 46773 places the chip at the 92nd percentile, meaning it outperforms 92% of all CPUs in the database, a strong showing for a mobile part.

When comparing deltas, the data shows that the Ryzen AI 9 HX PRO 375 is 0.3% ahead of the Core i9-13900HX and 0.7% ahead of the Core Ultra 7 265T, but 0.4% behind the Ryzen 9 5900. These are all sub-1% differences, so the competitive positioning is one of parity rather than dominance. The practical implication is that users upgrading between these platforms would not notice a performance difference in most applications, though power consumption may vary.

FAQ

Q: How does the Ryzen AI 9 HX PRO 375 compare to the Intel Core i7-14700HX in average benchmark scores?

A: The Ryzen AI 9 HX PRO 375 scores 46773, while the Intel Core i7-14700HX scores 46795, a delta of 0%, meaning they are effectively tied in overall performance.

Q: What is the processor's single-thread performance in Cinebench R23?

A: The Cinebench R23 single-core score is 4027, which is a strong result for a mobile chip and indicates fast responsiveness in lightly threaded tasks.

Q: Is the multi-thread score significantly higher than the single-thread score?

A: Yes, the Cinebench R23 multi-core score of 28529 is approximately 7.1 times higher than the single-core score of 4027, showing good scaling across 24 threads.

Q: Which rival is the closest in performance, and by how much?

A: The Intel Core i7-14700HX is the closest rival, with a delta of 0% from the Ryzen AI 9 HX PRO 375's average score of 46773.

Q: What does the PassMark single-thread score of 3839 indicate?

A: It indicates that the chip's per-core performance is competitive with other high-end processors, supporting good performance in older or single-threaded applications.

Q: How does this processor rank among all CPUs in the database?

A: It sits at the 92nd percentile, meaning it outperforms 92% of all CPUs tested, which is an excellent position for a mobile processor.

Power and Thermals

The Ryzen AI 9 HX PRO 375 has a TDP of 28 W, classifying it as a low-power mobile processor. This is a critical specification for thermal design, as it implies that a thin-and-light laptop can house this chip without requiring an aggressive cooling solution. The data shows that this 28 W part matches the average benchmark score of the Intel Core i9-13900HX, which is typically a 55 W or higher part, suggesting superior performance-per-watt. The architecture is built on a 4 nm process from TSMC, and the die size is 233 mm², which allows for dense integration of the 12 cores and the Radeon 890M integrated graphics.

Given the 28 W TDP, a capable air cooler, such as a dual-heatpipe design or a vapor chamber, would likely suffice for sustained workloads. The boost clock of 5100 MHz is high for such a low TDP, but the processor likely relies on short bursts of high frequency before settling to a lower sustained clock under load. The memory bandwidth of 89.6 GB/s is modest, which may limit multi-core scaling beyond what the Cinebench ratios show, but it also helps keep power consumption down. For users, this means the chip can be deployed in compact chassis without thermal throttling concerns, and the data does not suggest any need for exotic liquid cooling. The lack of a multiplier unlock, indicated by multiplierUnlocked being false, means overclocking is not possible, so the thermal solution only needs to handle stock operation, which is well within the range of standard mobile cooling designs.