AMD Ryzen Embedded 9950X3D vs Intel Core Ultra 5 338H Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance split between these two processors. The Intel Core Ultra 5 338H has a complete set of benchmark results, while the AMD Ryzen Embedded 9950X3D has no recorded benchmark scores in the database. This means the head-to-head comparison relies entirely on the Intel part's measured performance and the architectural specifications of the AMD part.

The Intel Core Ultra 5 338H posts an average benchmark score of 33,989 across all tests. Its percentile ranking of 84 places it in the upper tier of all CPUs in the database. The nearest rival, the Intel Core Ultra 7 165H, scores 34,083, which is only 0.3% higher. The Intel Core i7-12800HX sits 0.3% lower at 33,875, and the AMD EPYC 4244P is 0.7% above at 34,220. These narrow margins indicate the Ultra 5 338H competes directly with established mid-to-high range processors.

In multi-core Cinebench tests, the Ultra 5 338H delivers 2,504 points in R15, 10,213 in R20, and 16,331 in R23. Single-core results are 305, 1,441, and 2,044 respectively. The PassMark suite shows strong integer math performance at 64,934, floating point math at 84,067, and multithreaded score of 28,717. Data compression reaches 276,539, while encryption scores 21,367. Prime number finding is notably lower at 304, and physics simulation scores 2,697.

Because the AMD Ryzen Embedded 9950X3D has no benchmark entries, the database cannot produce direct score comparisons. However, the AMD part's specifications indicate it targets a different performance envelope entirely. With 16 cores and 32 threads versus the Intel part's 12 cores and 12 threads, the AMD processor offers substantially more parallel execution resources on paper.

Where Each One Wins

The Intel Core Ultra 5 338H wins in every measured benchmark category because it is the only part with recorded scores. Its single-thread PassMark score of 4,180 and Cinebench R23 single-core score of 2,044 reflect strong per-core efficiency. The 12-core, 12-thread configuration with a 4.70 GHz boost clock delivers competitive results across the board.

The AMD Ryzen Embedded 9950X3D wins in theoretical capacity. The 16-core, 32-thread design, combined with a 5.70 GHz boost clock and 128 MB of L3 cache, suggests superior multi-threaded workloads. The 170 W TDP indicates a desktop-class power envelope, whereas the Intel part's 25 W TDP positions it for mobile efficiency. The AMD processor also supports ECC memory, a feature absent from the Intel part, making it suited for reliability-focused tasks.

The Intel part's memory bandwidth advantage is notable. It supports LPDDR5X with 136.5 GB/s bandwidth, compared to the AMD part's DDR5 at 89.6 GB/s. This gives the Ultra 5 338H a clear edge in memory-intensive operations such as data compression, where it scores 276,539. The AMD part's larger cache hierarchy may offset some of this deficit in workloads with high data reuse.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen Embedded 9950X3D uses the Granite Ridge codename with Zen 5 architecture on a 4 nm TSMC process. The Intel Core Ultra 5 338H uses Panther Lake architecture on Intel's 3 nm process. The AMD part is built on a 2x 70.6 mm² die configuration with 16,630 million transistors, while the Intel part has no recorded transistor or die size data.

Cache hierarchies differ significantly. The AMD processor provides 80 KB of L1 cache per core and 1 MB of L2 per core, with a massive 128 MB of L3 cache. The Intel processor offers 192 KB of L1 per core and 2.5 MB of L2 per core, but only 18 MB of shared L3. The AMD part's 128 MB L3 is more than seven times larger, which benefits workloads with large working sets.

The AMD processor uses the AM5 socket and is classified as a desktop part. The Intel processor uses BGA 2540 and is classified as mobile. The AMD part has an unlocked multiplier, while the Intel part is locked. The AMD processor includes Radeon Graphics integrated, and the Intel part includes Arc B370. The AMD part supports PCIe Gen 5 with 24 lanes, while the Intel part supports Gen 5 with only 4 lanes.

Specification Differences

The core and thread counts differ by a wide margin: the AMD part has 16 cores and 32 threads, the Intel part has 12 cores and 12 threads. Base clocks are 4.30 GHz for AMD versus 1.90 GHz for Intel. Boost clocks are 5.70 GHz for AMD versus 4.70 GHz for Intel. The TDP figures are 170 W for AMD and 25 W for Intel, reflecting their different market segments.

Memory support diverges: AMD uses DDR5, Intel uses LPDDR5X. Both are dual-channel, but the memory bandwidth is 89.6 GB/s for AMD and 136.5 GB/s for Intel. ECC memory support is present on the AMD part but not on the Intel part. The AMD processor is produced by TSMC, while the Intel processor comes from Intel's own fabs. The AMD part's process node is 4 nm, and the Intel part's is 3 nm.

Release dates also differ. The AMD Ryzen Embedded 9950X3D launched in October 2025. The Intel Core Ultra 5 338H launched in January 2026. The Intel part carries the part number SA4REQ9EW, and the AMD part is 100-000000719E.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Embedded 9950X3D has 16 cores and 32 threads. The Intel Core Ultra 5 338H has 12 cores and 12 threads.

Q: What is the boost clock difference?

A: The AMD part boosts to 5.70 GHz, while the Intel part boosts to 4.70 GHz. The base clocks are 4.30 GHz for AMD and 1.90 GHz for Intel.

Q: How does memory bandwidth compare?

A: The Intel Core Ultra 5 338H supports LPDDR5X with 136.5 GB/s bandwidth. The AMD Ryzen Embedded 9950X3D supports DDR5 with 89.6 GB/s bandwidth. Both use dual-channel memory.

Q: Does either processor support ECC memory?

A: The AMD Ryzen Embedded 9950X3D supports ECC memory. The Intel Core Ultra 5 338H does not.

Q: What is the Intel part's benchmark performance relative to its nearest rivals?

A: The Intel Core Ultra 5 338H scores 33,989 on average. It is 0.3% below the Intel Core Ultra 7 165H (34,083), 0.3% above the Intel Core i7-12800HX (33,875), 0.4% above the Intel Xeon 6353P (33,844), and 0.7% below the AMD EPYC 4244P (34,220).

Q: Which processor has a larger L3 cache?

A: The AMD Ryzen Embedded 9950X3D has 128 MB of L3 cache. The Intel Core Ultra 5 338H has 18 MB of shared L3 cache.

The Verdict

The data indicates a clear separation in intended use cases. The Intel Core Ultra 5 338H delivers verified, competitive benchmark scores across all recorded tests, with a percentile rank of 84. Its 25 W TDP and mobile BGA 2540 socket make it suitable for thin-and-light systems where efficiency matters. The 136.5 GB/s memory bandwidth and 4.70 GHz boost clock provide strong responsiveness in everyday and moderately threaded workloads.

The AMD Ryzen Embedded 9950X3D, despite lacking benchmark scores, offers specifications that target heavy multi-threaded and reliability-critical environments. The 16 cores, 32 threads, 128 MB L3 cache, and ECC memory support align with server or workstation duties. The 170 W TDP and desktop AM5 socket confirm a non-mobile design. The unlocked multiplier allows tuning, which the locked Intel part does not permit.

For users prioritizing measured performance per watt, the Intel part has the edge because the database contains its full benchmark record. For users needing maximum thread count, cache capacity, and error-correcting memory, the AMD part is the only option between these two. The absence of AMD benchmark results limits direct comparison, but the specification gap in core count and cache is substantial. The choice depends on whether verified mobile efficiency or raw desktop-class parallel capacity is the priority.