AMD Ryzen Embedded 8840U vs Intel Core Ultra 5 338H Comparison

AMD Ryzen Embedded 8840U vs Intel Core Ultra 5 338H

The Intel Core Ultra 5 338H is the only processor in this comparison with recorded benchmark data, making it the reference point for all performance analysis. The AMD Ryzen Embedded 8840U has no benchmark entries in the database, which means its performance profile must be evaluated strictly through architectural specifications rather than measured scores. The Intel chip holds an 84th percentile ranking across all CPUs, while the AMD chip sits at the 50th percentile, a gap that reflects the absence of recorded testing for the latter rather than any direct comparison. The Core Ultra 5 338H also carries an average benchmark score of 33,989, placing it within 0.7% of the AMD EPYC 4244P, 0.4% above the Intel Xeon 6353P, and 0.3% above the Intel Core i7-12800HX, with the Intel Core Ultra 7 165H leading it by a marginal 0.3%.

Head-to-Head Benchmarks

With no head-to-head benchmark entries and zero wins recorded for either processor, the only measurable performance data comes from the Intel Core Ultra 5 338H's individual test scores. In Cinebench R23, the Intel chip delivers a multicore score of 16,331 and a single-core score of 2,044. The Cinebench R20 results show 10,213 for multicore and 1,441 for single-core, while Cinebench R15 yields 2,504 multicore and 305 single-core. These scores establish a consistent scaling pattern across the three Cinebench versions, with the multicore advantage over single-core ranging from roughly 7x in R23 to about 8.2x in R15.

PassMark results for the Intel processor show substantial strength in data-intensive workloads. The data compression score reaches 276,539, while data encryption hits 21,367. Floating point math records 84,067, integer math reaches 64,934, and extended instructions score 23,906. The multithread score stands at 28,717, with single-thread performance at 4,180. Find prime numbers returns a notably lower score of 304, and random string sorting completes at 34,082. Physics testing produces 2,697 points.

The single-thread score appears twice in the database, once labeled as passmark_single_thread and again as passmark_singlethread, both recording 4,180. This duplication does not affect the overall average, as the benchmark list includes 17 entries total, with the average benchmark score of 33,989 reflecting the combined results. The data shows no comparable AMD figures, so any head-to-head analysis must rely on the Intel scores as the sole quantitative foundation.

Where Each One Wins

The Intel Core Ultra 5 338H wins every category where recorded data exists, which covers all benchmark tests in the database. Its strongest relative performance appears in data compression, where the 276,539 score far exceeds every other test result in absolute terms. The floating point math score of 84,067 and integer math score of 64,934 also stand out as high-magnitude results, indicating strong arithmetic throughput. The multithread score of 28,717 confirms that the 12-core, 12-thread configuration handles parallel workloads effectively.

For the AMD Ryzen Embedded 8840U, no benchmark wins can be listed because no scores exist. The processor's architectural specifications suggest potential advantages in specific areas, but the database records no measured confirmation. The AMD chip uses a 4 nm process from TSMC with 8 cores and 16 threads, which implies simultaneous multithreading capability that the Intel chip lacks, as the Intel part has 12 threads for 12 cores. The AMD processor also supports ECC memory, a feature the Intel chip does not offer, which could matter for reliability-focused deployments. The Radeon 780M integrated graphics and the Intel Arc B370 integrated graphics have no benchmark comparisons in the database, so neither can be declared superior based on recorded data.

Architecture Differences

The two processors come from different manufacturers, foundries, and process nodes. AMD builds the Ryzen Embedded 8840U on a 4 nm process at TSMC, while Intel fabricates the Core Ultra 5 338H on a 3 nm process at its own foundry. The AMD chip uses the Zen 4 architecture under the Hawk Point codename, belonging to the Ryzen Embedded generation. The Intel chip uses the Panther Lake architecture under the Panther Lake codename, belonging to the Core Ultra Series 3 generation.

Core and thread counts differ substantially. The AMD processor has 8 cores and 16 threads, indicating that each core supports two threads. The Intel processor has 12 cores and 12 threads, meaning each core supports exactly one thread. Base clocks show 3.30 GHz for AMD and 1.90 GHz for Intel, while boost clocks reach 5.10 GHz for AMD and 4.70 GHz for Intel. Thermal design power sits at 28 watts for AMD and 25 watts for Intel.

Cache hierarchies diverge in both size and structure. The AMD chip allocates 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel chip provides 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The Intel L1 and L2 figures are substantially larger per core, while the L3 cache advantage is narrower at 18 MB versus 16 MB.

Memory support differs in type and bandwidth. The AMD processor supports DDR5 memory on a dual-channel bus with 89.6 GB/s bandwidth. The Intel processor supports LPDDR5X memory on a dual-channel bus with 136.5 GB/s bandwidth. ECC memory is supported by AMD but not by Intel. PCIe connectivity also differs, with AMD providing Gen 4 across 20 lanes (CPU only) and Intel providing Gen 5 across 4 lanes (CPU only).

The AMD processor reports 25,000 million transistors on a 178 mm² die, while the Intel processor has no transistor count or die size recorded. The AMD chip uses an AMD Socket FP8, and the Intel chip uses an Intel BGA 2540 socket. Both processors are classified as mobile market segments, both are active in production, and neither has an unlocked multiplier. The Intel part has a part number of SA4REQ9EW, while the AMD part's part number is unknown.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 5 338H has 12 cores and 12 threads, while the AMD Ryzen Embedded 8840U has 8 cores and 16 threads. The AMD chip supports two threads per core, but the Intel chip has four more physical cores.

Q: What are the boost clock speeds for each processor?

A: The AMD Ryzen Embedded 8840U boosts to 5.10 GHz, and the Intel Core Ultra 5 338H boosts to 4.70 GHz. The AMD chip also has a higher base clock at 3.30 GHz compared to 1.90 GHz for Intel.

Q: How does memory bandwidth compare between the two?

A: The Intel Core Ultra 5 338H supports LPDDR5X memory with 136.5 GB/s bandwidth, while the AMD Ryzen Embedded 8840U supports DDR5 memory with 89.6 GB/s bandwidth. Both use dual-channel memory buses.

Q: Does either processor support ECC memory?

A: The AMD Ryzen Embedded 8840U supports ECC memory, but the Intel Core Ultra 5 338H does not.

Q: What are the process nodes for these processors?

A: The AMD Ryzen Embedded 8840U uses a 4 nm process from TSMC, and the Intel Core Ultra 5 338H uses a 3 nm process from Intel.

Q: What benchmark scores are recorded for the Intel Core Ultra 5 338H?

A: The Intel chip has a Cinebench R23 multicore score of 16,331 and single-core score of 2,044, a PassMark multithread score of 28,717, and a PassMark single-thread score of 4,180, among other results. No benchmark scores are recorded for the AMD chip.

The Verdict

The data presents an uneven comparison. The Intel Core Ultra 5 338H has 17 recorded benchmark scores, an 84th percentile ranking, and an average score of 33,989. The AMD Ryzen Embedded 8840U has no benchmark scores, a 50th percentile ranking, and an average score of zero. Based strictly on measured performance, the Intel processor is the only one with demonstrated capability in the database.

The AMD processor offers architectural features that the Intel chip lacks, including ECC memory support, simultaneous multithreading (16 threads from 8 cores), a higher boost clock at 5.10 GHz, and more PCIe lanes at 20 Gen 4 lanes. The Intel processor counters with more physical cores (12 versus 8), a newer 3 nm process, higher memory bandwidth at 136.5 GB/s, and a larger L3 cache at 18 MB.

For workloads where recorded data exists, the Intel Core Ultra 5 338H clearly delivers measurable results across Cinebench and PassMark tests. The AMD Ryzen Embedded 8840U cannot be positioned as a performance leader in this comparison because the database contains no evidence of its benchmark output. The choice between them depends on whether the user prioritizes recorded performance, which favors Intel, or specific features such as ECC memory and multithreading, which favor AMD. Both processors target the mobile segment, both are active in production, and neither has an unlocked multiplier.

Specification Differences

| Specification | AMD Ryzen Embedded 8840U | Intel Core Ultra 5 338H |

| --- | --- | --- |

| Cores | 8 | 12 |

| Threads | 16 | 12 |

| Base Clock | 3.30 GHz | 1.90 GHz |

| Boost Clock | 5.10 GHz | 4.70 GHz |

| TDP | 28 W | 25 W |

| Socket | AMD Socket FP8 | Intel BGA 2540 |

| Architecture | Zen 4 | Panther Lake |

| Codename | Hawk Point | Panther Lake |

| Generation | Ryzen Embedded (Zen 4, Hawk Point) | Ultra 5 (Panther Lake-H) |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | Intel |

| Transistors | 25,000 million | Not recorded |

| Die Size | 178 mm² | Not recorded |

| L1 Cache | 64 KB per core | 192 KB per core |

| L2 Cache | 1 MB per core | 2.5 MB per core |

| L3 Cache | 16 MB shared | 18 MB shared |

| Memory Support | DDR5 | LPDDR5X |

| Memory Bus | Dual-channel | Dual-channel |

| Memory Bandwidth | 89.6 GB/s | 136.5 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 5, 4 Lanes (CPU only) |

| Integrated Graphics | Radeon 780M | Arc B370 |

| Market Segment | Mobile | Mobile |

| Production Status | Active | Active |

| Release Date | 2024-04-01 | 2026-01-04 |

| Multiplier Unlocked | No | No |

| Part Number | Unknown | SA4REQ9EW |

| Percentile vs All CPUs | 50 | 84 |

| Average Benchmark Score | 0 | 33,989 |