AMD Ryzen AI 7 450 vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall result: the Intel Core Ultra X7 358H wins 14 of the 15 head-to-head comparisons, while the AMD Ryzen AI 7 450 takes a single win. The average benchmark score for the Intel part is 40967, compared to 39485 for the AMD, a difference of roughly 3.8%.

The largest margin of victory for Intel appears in the PassMark find prime numbers test. The Intel Core Ultra X7 358H scores 337, while the AMD Ryzen AI 7 450 scores 89, a delta of -73.6% from the AMD perspective. This is the single biggest gap in the entire comparison. Floating point math also shows a substantial gap: Intel scores 103842 against AMD's 54447, a 47.6% difference. Physics performance follows a similar pattern, with Intel at 3021 and AMD at 1578, a 47.8% delta. Data encryption shows Intel at 26046 versus AMD's 16247, a 37.6% advantage for Intel.

The Cinebench results paint a more nuanced picture. In Cinebench R15 multicore, Intel leads with 3027 against AMD's 2713, a 10.4% margin. The single-core version of that same test shows a much larger gap: Intel scores 301.5, AMD scores 215, a 28.7% delta in Intel's favor. However, in the more modern Cinebench R23 tests, the margins shrink considerably. Multicore R23 shows Intel at 18747 and AMD at 18316, only a 2.3% difference. Single-core R23 shows Intel at 2080 and AMD at 2038, a 2% gap. These tight margins suggest that in heavily threaded modern workloads, the two processors are far closer than the older test suite implies.

The PassMark multithread score gives Intel a 22% lead: 33802 versus 26350. Random string sorting shows Intel ahead by 11.7% (40357 versus 35648). Extended instructions favor Intel by 17.9% (27274 versus 22400). Data compression favors Intel by 5% (332508 versus 315906). Single-thread PassMark has Intel at 4124 versus AMD's 3901, a 5.4% edge.

The single AMD victory comes in PassMark integer math. The AMD Ryzen AI 7 450 scores 88531, while the Intel Core Ultra X7 358H scores 83147, a 6.5% advantage for AMD. This is the only test where the AMD part outperforms, and it is a meaningful one for integer-heavy workloads.

The Verdict

The data indicates that the Intel Core Ultra X7 358H is the stronger processor in the vast majority of measured scenarios. Its wins span Cinebench multicore and single-core, data compression, encryption, extended instructions, prime number finding, floating point math, multithread, physics, random string sorting, and single-thread tests. The AMD Ryzen AI 7 450 holds a single advantage in integer math.

The two chips sit at the same percentile versus all CPUs (87th percentile each), meaning both belong to the same performance tier overall. The average benchmark scores confirm this: 40967 for Intel, 39485 for AMD. The Intel part is about 3.8% ahead on average, but the distribution of wins is lopsided because Intel dominates most individual tests.

For workloads that rely on integer math, the AMD Ryzen AI 7 450 is the better choice based on the recorded data. For nearly everything else, particularly floating point math, physics, encryption, and prime number calculations, the Intel Core Ultra X7 358H holds a clear lead. The largest deltas favor Intel by wide margins, while the AMD win is comparatively modest at 6.5%.

The Cinebench R23 results suggest that in modern rendering workloads, the two are nearly equivalent. The Intel part leads by only 2.3% in multicore and 2% in single-core. This narrows the practical gap for users running current-generation rendering software. However, the broader PassMark suite shows Intel with substantial leads in several specialized compute areas.

FAQ

Q: Which CPU has the higher average benchmark score?

A: The Intel Core Ultra X7 358H has an average benchmark score of 40967, while the AMD Ryzen AI 7 450 scores 39485.

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

A: The largest gap is in PassMark find prime numbers, where the Intel Core Ultra X7 358H scores 337 and the AMD Ryzen AI 7 450 scores 89, a 73.6% difference.

Q: Does the AMD processor win any benchmark?

A: Yes, the AMD Ryzen AI 7 450 wins PassMark integer math with a score of 88531 against Intel's 83147, a 6.5% advantage.

Q: How close are the two in Cinebench R23 multicore?

A: The Intel Core Ultra X7 358H scores 18747 and the AMD Ryzen AI 7 450 scores 18316, a difference of only 2.3%.

Q: Which CPU has the higher single-core Cinebench R15 score?

A: The Intel Core Ultra X7 358H scores 301.5, while the AMD Ryzen AI 7 450 scores 215, giving Intel a 28.7% lead.

Q: What is the memory bandwidth difference?

A: The Intel Core Ultra X7 358H supports 153.6 GB/s, while the AMD Ryzen AI 7 450 supports 89.6 GB/s.

Specification Differences

The Intel Core Ultra X7 358H uses 16 cores and 16 threads, while the AMD Ryzen AI 7 450 uses 8 cores and 16 threads. The AMD part has a base clock of 2.00 GHz and a boost clock of 5.10 GHz. The Intel part has a base clock of 1.90 GHz and a boost clock of 4.80 GHz. The AMD processor has a TDP of 28, and the Intel processor has a TDP of 25.

The AMD Ryzen AI 7 450 uses an AMD Socket FP8, while the Intel Core Ultra X7 358H uses an Intel BGA 2540 socket. Neither processor has an unlocked multiplier. The AMD part has a part number of 100-000001868, and the Intel part has a part number of SA4RAQ9ET. Both processors are listed as active production and were released on the same date. Neither has a launch MSRP in the database.

The AMD processor supports ECC memory, while the Intel processor does not. Both use dual-channel memory buses. The AMD part supports DDR5 and LPDDR5X memory, while the Intel part supports LPDDR5X only. The PCIe configurations differ: AMD offers Gen 4 with 16 lanes (CPU only), while Intel offers Gen 5 with 4 lanes (CPU only).

The integrated graphics differ as well. The AMD Ryzen AI 7 450 uses a Radeon 860M, and the Intel Core Ultra X7 358H uses an Arc B390.

Architecture Differences

The AMD Ryzen AI 7 450 is built on the Zen 5 architecture with the codename Gorgon Point. It belongs to the Ryzen AI 400 generation, which uses a combination of Zen 5 and Zen 5c cores. The process node is 4 nm, and the foundry is TSMC. The die size is 195 mm².

The Intel Core Ultra X7 358H uses the Panther Lake codename and belongs to the Ultra X7 generation, specifically Panther Lake-H. The process node is 3 nm, and the foundry is Intel. No die size is recorded for the Intel part.

Cache configurations differ substantially. The AMD Ryzen AI 7 450 has 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 8 MB of L3 cache. The Intel Core Ultra X7 358H has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 18 MB of shared L3 cache. The larger L3 cache on the Intel part aligns with its higher memory bandwidth of 153.6 GB/s compared to AMD's 89.6 GB/s.

The core count difference is notable: Intel uses 16 cores with 16 threads, meaning no hyperthreading, while AMD uses 8 cores with 16 threads, meaning each core supports two threads. The Intel part compensates with a higher physical core count and larger caches.

Where Each One Wins

The Intel Core Ultra X7 358H wins in most measured categories. It leads in Cinebench R15 multicore (3027 versus 2713), Cinebench R15 single-core (301.5 versus 215), Cinebench R23 multicore (18747 versus 18316), and Cinebench R23 single-core (2080 versus 2038). It also wins in PassMark data compression (332508 versus 315906), data encryption (26046 versus 16247), extended instructions (27274 versus 22400), find prime numbers (337 versus 89), floating point math (103842 versus 54447), multithread (33802 versus 26350), physics (3021 versus 1578), random string sorting (40357 versus 35648), and single-thread (4124 versus 3901).

The AMD Ryzen AI 7 450 wins only in PassMark integer math (88531 versus 83147). This makes it the preferred processor for integer-heavy compute tasks, such as certain types of data processing and algorithmic work. Its higher boost clock of 5.10 GHz, compared to Intel's 4.80 GHz, may contribute to this result, though the recorded data does not directly demonstrate causation.

For users running modern rendering workloads, the Cinebench R23 results show the two processors are nearly matched, with Intel ahead by only 2.3% in multicore and 2% in single-core. The Intel part offers significantly higher memory bandwidth (153.6 GB/s versus 89.6 GB/s) and a larger shared L3 cache (18 MB versus 8 MB), which may explain its broader lead across memory-sensitive tests.

The AMD part has the advantage of ECC memory support, which the Intel part lacks. This makes the AMD Ryzen AI 7 450 more suitable for error-sensitive computing environments, even though its raw performance in most benchmarks trails the Intel part. The AMD processor also uses a Gen 4 PCIe interface with 16 lanes, whereas the Intel part uses Gen 5 with 4 lanes; the data does not include performance tests that isolate PCIe bandwidth, so the practical impact remains unmeasured.