AMD Ryzen 7 8745HX vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split in workload performance between the AMD Ryzen 7 8745HX and the Intel Core Ultra X7 358H. Across the eleven head-to-head PassMark tests, Intel takes seven wins while AMD claims four. The average benchmark score for the AMD part is 60,104, placing it in the 92nd percentile of all CPUs; the Intel part averages 40,967, landing in the 87th percentile. Despite that overall gap, the Intel chip wins most of the individual matchups by large margins.

Intel’s largest victory comes in prime number generation. The Core Ultra X7 358H scores 337 in the find prime numbers test, a 52.8% advantage over the Ryzen 7 8745HX’s 159. Floating point math also leans heavily toward Intel, with a score of 103,842 versus 61,972, a 40.3% lead. The physics test shows a similar pattern: Intel scores 3,021, which is 44.4% ahead of AMD’s 1,681. These three results alone demonstrate that the Intel part is substantially stronger in mathematically intensive single-threaded or lightly threaded workloads.

Intel also wins the multi-thread test, scoring 33,802 against AMD’s 31,517, a 6.8% margin. Data encryption favors Intel by 16.1%, with scores of 26,046 and 21,840. Even in single-thread performance, where AMD’s higher boost clock might suggest an edge, Intel takes the lead with 4,124 points versus 3,879, a 5.9% difference. The two single-thread entries in the database are identical, confirming the result.

AMD’s wins are fewer but still decisive in specific areas. The Ryzen 7 8745HX leads integer math with 100,328 points against Intel’s 83,147, a 20.7% advantage. Data compression favors AMD by 9.4%, with scores of 363,759 and 332,508. Random string sorting also goes to AMD, 44,494 versus 40,357, a 10.3% margin. The extended instructions test is nearly tied: AMD scores 27,638 and Intel 27,274, giving AMD a slim 1.3% win.

Interpreting these numbers requires context from the nearest rival comparisons in the database. The Ryzen 7 8745HX sits within a tight cluster around 60,000 average score: the AMD Ryzen 9 7945HX matches at 60,099, the Intel Core i9-14900F sits at 60,008, and the AMD Ryzen 9 7945HX3D is at 59,641. The Ryzen 7 8745HX is effectively on par with these high-end desktop-class parts, trailing the top entry by only 0.8%. The Intel Core Ultra X7 358H, by contrast, clusters around 41,000 with other mobile mid-range chips: the AMD Ryzen AI 5 PRO 440 at 41,208, the Intel Core Ultra 7 356H at 41,215, and the Intel Core Ultra 7 366H at 41,263. The Intel part trails these by 0.6% to 0.7% and leads the AMD Ryzen AI 5 PRO 435G by 0.6%.

Where Each One Wins

The benchmark data indicates that the Intel Core Ultra X7 358H is the better choice for workloads that rely on floating point arithmetic, prime number calculations, and physics simulations. The 40.3% lead in floating point math is the largest gap in the entire comparison. Physics scores, often tied to simulation and game physics workloads, show a 44.4% advantage for Intel. Prime number generation, a common measure of pure integer loop performance, shows Intel at more than double the AMD score. These results point to a processor that handles numerical computation with significant efficiency.

Intel also holds the edge in multi-thread throughput, despite having the same thread count as the AMD part. Both chips support 16 threads, but Intel’s 16 cores all contribute to that count, while AMD uses 8 cores with simultaneous multithreading. The 6.8% multi-thread win suggests that Intel’s core arrangement is more effective at sustaining parallel workloads. Data encryption also favors Intel, which may matter for security-focused tasks.

The AMD Ryzen 7 8745HX wins in areas tied to integer-heavy data processing. Integer math shows a 20.7% advantage, the largest AMD win. Data compression, which frequently relies on integer operations and memory bandwidth, favors AMD by 9.4%. Random string sorting also goes to AMD by 10.3%, another indicator of strong integer and memory-handling performance. The extended instructions test is essentially a tie, with AMD ahead by just 1.3%.

The single-thread comparison deserves attention. Despite AMD’s 5.10 GHz boost clock versus Intel’s 4.80 GHz, Intel wins the single-thread test by 5.9%. This suggests that Intel’s per-core efficiency, likely from its newer 3 nm process, compensates for the lower clock speed. The data does not support the assumption that a higher boost clock automatically yields faster single-thread performance.

The Verdict

The database indicates that the AMD Ryzen 7 8745HX is the higher-performing processor overall when considering the average benchmark score. Its 60,104 average places it in the 92nd percentile, while the Intel Core Ultra X7 358H sits at 40,967 and the 87th percentile. The AMD part also competes directly with processors like the Ryzen 9 7945HX and Core i9-14900F, which are typically found in higher-tier systems. For users who prioritize integer math, data compression, and random string sorting, the Ryzen 7 8745HX is the clear choice based on the recorded margins.

The Intel Core Ultra X7 358H, however, is the stronger option for floating point and physics workloads. Its 40.3% lead in floating point math and 44.4% lead in physics are substantial, and its 52.8% advantage in prime number generation is the largest single margin in the comparison. The Intel part also wins multi-thread and encryption tests, making it a more balanced performer in the areas where it wins. Its single-thread score of 4,124 also edges out AMD’s 3,879.

Selecting between them depends entirely on the workload profile. The AMD chip suits integer-heavy data tasks and delivers a higher overall benchmark average. The Intel chip suits numerical simulation, physics, and encryption workloads, and it does so with a 25 W TDP versus AMD’s 55 W TDP, a difference that may matter in mobile systems. The data does not show one processor as universally superior; it shows two distinct performance profiles.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 7 8745HX has an average benchmark score of 60,104, compared to 40,967 for the Intel Core Ultra X7 358H.

Q: How large is Intel’s lead in floating point math?

A: The Intel Core Ultra X7 358H scores 103,842 in floating point math, which is 40.3% ahead of the AMD Ryzen 7 8745HX’s 61,972.

Q: In which test does AMD have its largest margin of victory?

A: AMD’s largest win is in integer math, where the Ryzen 7 8745HX scores 100,328 against Intel’s 83,147, a 20.7% advantage.

Q: Do both processors support the same number of threads?

A: Yes, both support 16 threads, but the AMD Ryzen 7 8745HX uses 8 cores with multithreading, while the Intel Core Ultra X7 358H uses 16 physical cores.

Q: What are the TDP values for each chip?

A: The AMD Ryzen 7 8745HX has a TDP of 55 W, and the Intel Core Ultra X7 358H has a TDP of 25 W.

Q: Which processor wins the single-thread test?

A: The Intel Core Ultra X7 358H wins the single-thread test with a score of 4,124, which is 5.9% higher than the AMD Ryzen 7 8745HX’s 3,879.

Architecture Differences

The two processors come from different design lineages. The AMD Ryzen 7 8745HX belongs to the 8000 series and uses the Zen 4 architecture under the Dragon Range codename. It is built on a 5 nm process at TSMC and contains 6,570 million transistors on a 71 mm² die. The Intel Core Ultra X7 358H is part of the Core Ultra Series 3, uses the Panther Lake codename, and is built on a 3 nm process at Intel. The database does not list transistor count or die size for the Intel part.

Core counts differ significantly. The AMD chip has 8 cores and 16 threads, while the Intel chip has 16 cores and 16 threads. The Intel part achieves the same thread count with more physical cores and no simultaneous multithreading. Cache layouts also differ. The AMD chip has 64 KB of L1 per core, 1 MB of L2 per core, and 32 MB of shared L3. The Intel chip has 192 KB of L1 per core, 3 MB of L2 per core, and 18 MB of shared L3. The larger per-core caches on the Intel side may contribute to its strong single-thread and floating point results.

Memory support differs as well. The AMD chip uses DDR5 with dual-channel support and a memory bandwidth of 83.2 GB/s. The Intel chip uses LPDDR5X with dual-channel support and a memory bandwidth of 153.6 GB/s, nearly double the AMD figure. Neither chip supports ECC memory. PCIe connectivity also differs: the AMD part offers Gen 5 with 28 CPU lanes, while the Intel part offers Gen 5 with only 4 CPU lanes.

Integrated graphics differ between the two. The AMD Ryzen 7 8745HX includes a Radeon 610M, while the Intel Core Ultra X7 358H includes an Arc B390. The multiplier is unlocked on the AMD chip, allowing overclocking, but locked on the Intel chip. The AMD part uses the AMD Socket FL1, and the Intel part uses Intel BGA 2540.

Specification Differences

The clock speeds show a notable contrast. The AMD Ryzen 7 8745HX has a base clock of 3.60 GHz and a boost clock of 5.10 GHz. The Intel Core Ultra X7 358H has a base clock of 1.90 GHz and a boost clock of 4.80 GHz. The AMD chip runs at a significantly higher base frequency, which may contribute to its strong integer and compression results. The Intel chip’s lower base clock is offset by its higher core count and newer process node.

TDP differs by 30 W: AMD is rated at 55 W and Intel at 25 W. This makes the Intel part substantially more power-efficient on paper, especially for mobile use. Release dates also differ. The AMD Ryzen 7 8745HX was released on April 22, 2025, while the Intel Core Ultra X7 358H was released on January 4, 2026. Both are listed as Active in production status and target the mobile market segment.

The process node and foundry differ: AMD uses TSMC’s 5 nm process, while Intel uses its own 3 nm process. Part numbers are recorded as 100-000001851 for AMD and SA4RAQ9ET for Intel. Neither chip has a launch MSRP listed in the database. The AMD chip is unlocked for overclocking; the Intel chip is not. The Intel part has a higher memory bandwidth rating, 153.6 GB/s versus 83.2 GB/s, and uses LPDDR5X rather than DDR5. The AMD chip provides more PCIe lanes, 28 versus 4, which may matter for systems with multiple high-speed expansion devices.