AMD Ryzen 9 5900XT vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The recorded head-to-head data shows a decisive overall victory for the AMD Ryzen 9 5900XT, which wins 12 of the 17 compared tests against the Intel Core Ultra X7 358H. The Intel part claims five wins, but the magnitudes of the AMD victories are substantially larger in most cases, creating a lopsided performance profile.

The single most dramatic difference appears in Cinebench R23 single-core, where AMD scores 5276 against Intel's 2080, a delta of 153.7% in AMD's favor. That is not a typo in the data: the Ryzen 9 5900XT more than doubles the Intel processor's single-threaded Cinebench R23 result. The multi-core R23 test tells a similar story, with AMD at 37373 versus Intel at 18747, a 99.4% advantage. These two results alone establish that the AMD part delivers roughly twice the rendering throughput in both single- and multi-threaded Cinebench workloads.

Cinebench R20 shows a consistent 30.7% lead for AMD in both single-core (2215 vs 1695) and multi-core (15696 vs 12011). Cinebench R15 multi-core is closer, with AMD ahead by 24.4% (3767 vs 3027), while the R15 single-core gap expands to 76.1% (531 vs 301.5). The pattern across all three Cinebench versions is uniform: AMD wins every rendering test, with the single-core gaps ranging from 30.7% to 153.7% and the multi-core gaps from 24.4% to 99.4%.

PassMark integer math is another runaway AMD victory: 177566 versus 83147, a 113.6% delta. Data compression shows AMD ahead by 79.8% (597862 vs 332508), random string sorting by 55% (62537 vs 40357), and data encryption by 45.2% (37814 vs 26046). Extended instructions favor AMD by 43.5% (39141 vs 27274). The PassMark multi-thread score gives AMD 43810 against Intel's 33802, a 29.6% edge.

The Intel Core Ultra X7 358H wins the remaining five tests, but with smaller margins. Its best result is in PassMark physics, where it scores 3021 against AMD's 1715, a 43.2% advantage. PassMark find prime numbers shows Intel ahead at 337 versus 205, a 39.2% delta. PassMark single-thread (and the duplicate singlethread test) gives Intel 4124 versus AMD's 3474, a 15.8% lead. Floating-point math is the closest contest: Intel scores 103842 against AMD's 99398, a narrow 4.3% edge.

The average benchmark scores reflect this overall split. The AMD Ryzen 9 5900XT carries an average score of 50718, placing it at the 90th percentile among all CPUs. The Intel Core Ultra X7 358H averages 40967, at the 87th percentile. The AMD processor's nearest rivals in the database include the Intel Core i7-13850HX (50761, delta -0.1%), AMD Ryzen AI 9 HX PRO 370 (50448, delta 0.5%), Intel Core i9-14900T (51015, delta -0.6%), and Intel Core i9-13980HX (50398, delta 0.6%). The Intel mobile chip's nearest rivals are the AMD Ryzen AI 5 PRO 440 (41208, delta -0.6%), Intel Core Ultra 7 356H (41215, delta -0.6%), AMD Ryzen AI 5 PRO 435G (40718, delta 0.6%), and Intel Core Ultra 7 366H (41263, delta -0.7%).

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 5900XT averages 50718 across its benchmark set, compared to 40967 for the Intel Core Ultra X7 358H. The AMD part also sits at the 90th percentile versus the Intel part's 87th percentile.

Q: Does the Intel chip win any single-threaded tests?

A: Yes, but only in PassMark single-thread, where Intel scores 4124 against AMD's 3474, a 15.8% advantage. In Cinebench R15, R20, and R23 single-core tests, AMD leads by 76.1%, 30.7%, and 153.7% respectively.

Q: How do the two chips compare in floating-point math?

A: The Intel Core Ultra X7 358H edges out AMD in PassMark floating-point math with 103842 versus 99398, a 4.3% delta. This is the closest benchmark result in the head-to-head comparison.

Q: What is the largest single benchmark margin in either direction?

A: The largest margin is AMD's 153.7% lead in Cinebench R23 single-core (5276 vs 2080). The largest Intel margin is 43.2% in PassMark physics (3021 vs 1715).

Q: Which processor has the higher PassMark multi-thread score?

A: AMD wins PassMark multi-thread with 43810 against Intel's 33802, a 29.6% advantage. AMD also wins PassMark integer math by 113.6% and data compression by 79.8%.

Q: Are the two processors in the same performance class according to the database?

A: No. The AMD Ryzen 9 5900XT averages 50718 and sits near rivals like the Intel Core i9-14900T (51015) and Intel Core i9-13980HX (50398). The Intel Core Ultra X7 358H averages 40967 and sits near the AMD Ryzen AI 5 PRO 440 (41208) and Intel Core Ultra 7 356H (41215). That is a gap of roughly 19.5% between their average scores.

Architecture Differences

The AMD Ryzen 9 5900XT uses the Zen 3 architecture under the Vermeer codename, built on a 7 nm process at TSMC. It belongs to the 5000 series and the Ryzen 9 generation, specifically Zen 3 (Vermeer). The Intel Core Ultra X7 358H uses the Panther Lake codename under the Core Ultra Series 3, built on a 3 nm process at Intel's own foundry. Its generation is listed as Ultra X7 (Panther Lake-H).

The core topology differs significantly. Both parts have 16 cores, but the AMD chip supports 32 threads while the Intel chip supports only 16 threads. The AMD part has simultaneous multithreading; the Intel part does not appear to. The AMD processor's cache layout includes 64 KB L1 per core, 512 KB L2 per core, and 64 MB of L3. The Intel processor has 192 KB L1 per core, 3 MB L2 per core, and 18 MB of shared L3. The Intel part has a larger per-core L1 and L2 allocation, but the AMD part has substantially more total L3 cache.

The memory controllers are entirely different generations. AMD supports DDR4 with dual-channel memory and 51.2 GB/s bandwidth. Intel supports LPDDR5X with dual-channel memory and 153.6 GB/s bandwidth, which is exactly three times the AMD figure. The Intel part also supports ECC memory, while the AMD part does not. The PCIe interfaces differ by generation and lane count: AMD provides Gen 4 with 20 CPU lanes, Intel provides Gen 5 with 4 CPU lanes.

The Intel Core Ultra X7 358H integrates Arc B390 graphics, while the AMD Ryzen 9 5900XT has no integrated graphics. The market segments differ: AMD targets desktop with an AMD Socket AM4, while Intel targets mobile with an Intel BGA 2540 socket. The AMD part has an unlocked multiplier; the Intel part is locked. The AMD processor uses a chiplet design indicated by its 2x 74 mm² die size and 8,300 million transistors, while the Intel processor lists no die size or transistor count in the database.

Specification Differences

The base clock differs by 1.40 GHz: the AMD Ryzen 9 5900XT runs at 3.30 GHz, the Intel Core Ultra X7 358H at 1.90 GHz. Both parts share the same 4.80 GHz boost clock. The thermal design power differs substantially: AMD is rated at 105 W, Intel at 25 W. The thread count differs by 16 threads (32 vs 16) despite equal core counts of 16.

The L1 cache differs per core: AMD has 64 KB, Intel has 192 KB. The L2 cache differs per core: AMD has 512 KB, Intel has 3 MB. The L3 cache totals 64 MB on AMD versus 18 MB shared on Intel. Memory bandwidth differs by 102.4 GB/s (153.6 vs 51.2). Memory support types differ: DDR4 versus LPDDR5X. ECC support is present on AMD, absent on Intel. PCIe generation differs: Gen 4 versus Gen 5, with 20 lanes versus 4 lanes. Integrated graphics exist only on Intel (Arc B390). The socket types differ: AMD Socket AM4 versus Intel BGA 2540. The process node differs: 7 nm versus 3 nm. The foundry differs: TSMC versus Intel. The die size and transistor count are listed only for AMD. The release dates differ: AMD launched on 2024-07-30, Intel on 2026-01-04. The AMD part has a launch MSRP of $349; no MSRP is recorded for the Intel part. The Intel part is locked, while AMD supports multiplier unlocking.

Where Each One Wins

The AMD Ryzen 9 5900XT is the clear choice for multi-threaded rendering and compute-heavy workloads. Its Cinebench R23 multi-core score of 37373 is nearly double the Intel chip's 18747, and the R20 multi-core result of 15696 versus 12011 gives a 30.7% lead. The same pattern holds in PassMark multi-thread (43810 vs 33802), integer math (177566 vs 83147), data compression (597862 vs 332508), data encryption (37814 vs 26046), extended instructions (39141 vs 27274), and random string sorting (62537 vs 40357). Any workload that scales across many threads will favor the AMD part, largely because it has 32 threads versus 16.

The AMD part also dominates Cinebench single-core across all three versions. The R23 single-core delta of 153.7% is the largest margin in the entire comparison. For tasks that rely on a single rendering thread, the Ryzen 9 5900XT is far ahead. The PassMark single-thread test is the exception, where Intel wins by 15.8%, but that single result does not outweigh the three Cinebench single-core victories.

The Intel Core Ultra X7 358H wins in specific math and physics workloads. The PassMark physics score of 3021 versus 1715 gives Intel a 43.2% lead, suggesting that physics simulation or similar constrained workloads run better on the Intel architecture. The find prime numbers test also favors Intel by 39.2% (337 vs 205), indicating a strength in certain algorithmic integer operations. Floating-point math is nearly a tie, with Intel ahead by only 4.3% (103842 vs 99398). The PassMark single-thread score of 4124 versus 3474 shows Intel has a single-threaded advantage in that particular benchmark suite.

The Intel chip's lower 25 W TDP and mobile form factor make it suitable for power-constrained platforms, while the AMD part's 105 W TDP and desktop socket target a different usage envelope. The Intel part includes integrated Arc B390 graphics, which the AMD chip lacks entirely, so systems using the Intel processor do not require a separate GPU for display output. The AMD part compensates with 20 PCIe Gen 4 lanes versus Intel's 4 Gen 5 lanes, providing more expansion bandwidth for discrete GPUs and storage devices.

The benchmark data shows a 90th percentile desktop processor with 12 head-to-head wins against an 87th percentile mobile processor with 5 wins. The AMD part's nearest rivals are all desktop or high-end mobile HX-series chips from Intel and AMD, while the Intel part's nearest rivals are mid-range mobile parts. The performance class separation is clear: the Ryzen 9 5900XT competes with the Intel Core i9-13980HX and i9-14900T, while the Core Ultra X7 358H competes with the Ryzen AI 5 PRO series and other Ultra 7 parts.