AMD Ryzen Embedded 8640U vs Intel Arc G3 Comparison

FAQ

Q: What are the core and thread counts of the AMD Ryzen Embedded 8640U and the Intel Arc G3?

A: The AMD Ryzen Embedded 8640U has 6 cores and 12 threads, while the Intel Arc G3 has 14 cores and 14 threads. The Intel part offers more physical cores, but the AMD part enables simultaneous multithreading.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen Embedded 8640U boosts up to 4.90 GHz, which is higher than the Intel Arc G3's maximum boost of 4.60 GHz. The AMD part also has a higher base clock at 3.50 GHz versus 1.90 GHz for the Intel part.

Q: How do the cache hierarchies compare between the two?

A: The Intel Arc G3 has larger per-core L1 and L2 caches (192 KB and 2.5 MB per core) compared to the AMD Ryzen Embedded 8640U (64 KB L1 and 1 MB L2 per core). The Intel part also has more shared L3 cache at 18 MB versus 16 MB on the AMD part.

Q: What memory types do these processors support?

A: The AMD Ryzen Embedded 8640U supports DDR5 memory, while the Intel Arc G3 supports LPDDR5X memory. Both use a dual-channel memory bus, but the Intel part has a higher memory bandwidth at 136.5 GB/s versus 89.6 GB/s for the AMD part.

Q: Which processor has ECC memory support?

A: The AMD Ryzen Embedded 8640U supports ECC memory, while the Intel Arc G3 does not include ECC support. This is a relevant distinction for embedded and reliability-focused applications.

Q: What are the integrated graphics options?

A: The AMD Ryzen Embedded 8640U integrates a Radeon 760M GPU, while the Intel Arc G3 integrates an Arc B370 GPU. Both are mobile-segment processors with active production status.

Architecture Differences

The AMD Ryzen Embedded 8640U belongs to the 8000 series and uses the Zen 4 architecture under the Hawk Point codename. It is fabricated on a 4 nm process at TSMC, with 25,000 million transistors on a 178 mm² die. The Intel Arc G3 uses the Panther Lake codename under the Arc G3 generation, fabricated on a 3 nm process at Intel. The database does not list transistor count or die size for the Intel part.

Core organization differs substantially. The AMD processor provides 6 cores and 12 threads, relying on simultaneous multithreading to reach its thread count. The Intel processor provides 14 cores and 14 threads, meaning it does not use multithreading and instead relies on a higher physical core count. This structural difference is foundational to how each processor handles workloads.

Cache layouts also diverge. The AMD part uses 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel part uses 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. The larger per-core caches on the Intel part suggest a different approach to data locality and per-core performance.

Memory support separates the two as well. The AMD processor uses DDR5 with a dual-channel bus and 89.6 GB/s of bandwidth. The Intel processor uses LPDDR5X with a dual-channel bus and 136.5 GB/s of bandwidth. The Intel part delivers roughly 52% more memory bandwidth according to the recorded figures.

Platform connectivity differs. The AMD part uses AMD Socket FP8 and provides PCIe Gen 4 with 20 lanes from the CPU. The Intel part uses Intel BGA 2540 and provides PCIe Gen 5 with 4 lanes from the CPU. The AMD part offers more lanes, while the Intel part offers a newer PCIe generation.

ECC memory support is present on the AMD processor but absent on the Intel processor. The AMD part has a 28 W TDP, while the Intel part has a 25 W TDP. Both processors are locked, with no unlocked multiplier. The AMD part was released in April 2024, while the Intel part has a release date of May 2026.

Head-to-Head Benchmarks

The recorded head-to-head benchmark data for these two processors is empty. There are no benchmark scores, no win counts, and no nearest rival comparisons in the database for either processor. The AMD Ryzen Embedded 8640U has a percentile rank of 50 among all CPUs, and the Intel Arc G3 also has a percentile rank of 50. Both processors show an average benchmark score of 0 in the current database.

Without raw benchmark measurements, the comparison must rely on the architectural and specification data available. The Intel Arc G3 has 14 physical cores versus 6 physical cores on the AMD part. In heavily parallel workloads that scale with core count, the Intel processor would be expected to have an advantage, though no measured score confirms this.

The AMD Ryzen Embedded 8640U has a substantial clock speed advantage. Its base clock of 3.50 GHz is about 84% higher than the Intel part's 1.90 GHz base clock. Its boost clock of 4.90 GHz is about 6.5% higher than the Intel part's 4.60 GHz boost. For single-threaded or lightly threaded workloads, the AMD processor's higher clocks are a clear specification-level advantage.

Memory bandwidth favors the Intel part. The 136.5 GB/s figure is about 52% higher than the AMD part's 89.6 GB/s. Workloads sensitive to memory throughput, such as certain data processing and integrated graphics tasks, would benefit from the Intel part's higher bandwidth.

The Intel Arc G3 also has a larger L3 cache at 18 MB versus 16 MB, and much larger per-core L1 and L2 caches. The L1 cache is 3 times larger per core on the Intel part, and the L2 cache is 2.5 times larger per core. Cache-sensitive workloads could favor the Intel processor.

The AMD part counters with ECC memory support, which the Intel part lacks. The AMD part also provides 20 PCIe Gen 4 lanes versus 4 PCIe Gen 5 lanes on the Intel part. The AMD processor has a higher boost clock, a higher base clock, and uses a socket format that may offer different platform options.

Specification Differences

The two processors differ on nearly every recorded specification field.

Clock speeds: The AMD Ryzen Embedded 8640U runs at 3.50 GHz base and 4.90 GHz boost. The Intel Arc G3 runs at 1.90 GHz base and 4.60 GHz boost.

Core and thread counts: The AMD part has 6 cores and 12 threads. The Intel part has 14 cores and 14 threads.

TDP: The AMD part is rated at 28 W. The Intel part is rated at 25 W.

Process node and foundry: The AMD part uses a 4 nm process at TSMC. The Intel part uses a 3 nm process at Intel.

Transistors and die size: The AMD part has 25,000 million transistors and a 178 mm² die. The database lists no transistor count or die size for the Intel part.

Cache: The AMD part has 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. The Intel part has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3.

Memory: The AMD part supports DDR5 with 89.6 GB/s bandwidth. The Intel part supports LPDDR5X with 136.5 GB/s bandwidth. Both use dual-channel buses.

ECC: The AMD part supports ECC memory. The Intel part does not.

PCIe: The AMD part provides PCIe Gen 4 with 20 lanes from the CPU. The Intel part provides PCIe Gen 5 with 4 lanes from the CPU.

Socket: The AMD part uses AMD Socket FP8. The Intel part uses Intel BGA 2540.

Integrated graphics: The AMD part has a Radeon 760M. The Intel part has an Arc B370.

Release date: The AMD part released in April 2024. The Intel part has a release date of May 2026.

Part number: The Intel part has the part number SA4QZ. The AMD part has an unknown part number.

The Verdict

The data shows two processors designed for the mobile embedded segment with different priorities. The AMD Ryzen Embedded 8640U prioritizes clock speed, multithreading, ECC memory support, and a wider PCIe lane count. The Intel Arc G3 prioritizes physical core count, cache capacity, memory bandwidth, and a newer process node.

Benchmark results are absent from the database, so no measured performance verdict can be issued. The specification-level analysis indicates that the AMD processor has the advantage in single-threaded clock speed and platform I/O flexibility. The Intel processor has the advantage in core count, cache size, memory bandwidth, and process technology.

The AMD processor's ECC support makes it suitable for reliability-focused embedded deployments. The Intel processor's higher memory bandwidth and larger caches suggest an orientation toward data-intensive workloads. Both processors sit at the 50th percentile in the database ranking, indicating a median position among all recorded CPUs.

The empty head-to-head benchmark table means there is no empirical winner in the recorded data. The choice between the two depends on which specification advantages matter more for a given workload, not on measured performance deltas.

Where Each One Wins

The AMD Ryzen Embedded 8640U wins on clock speed. Its 4.90 GHz boost clock and 3.50 GHz base clock exceed the Intel part's 4.60 GHz and 1.90 GHz figures. Workloads that depend on raw clock frequency, such as lightly threaded control loops or single-threaded application logic, align with the AMD processor's strengths.

The AMD part also wins on platform I/O. It provides 20 PCIe Gen 4 lanes from the CPU, compared to only 4 PCIe Gen 5 lanes on the Intel part. Systems requiring multiple PCIe devices or expansion options would favor the AMD processor.

The AMD part wins on ECC memory support. The Intel part has no ECC capability. For embedded applications where data integrity is critical, ECC support is a decisive specification.

The Intel Arc G3 wins on core count. Its 14 physical cores more than double the AMD part's 6 cores. Parallel workloads that scale across cores, such as multi-threaded server tasks or concurrent processing, align with the Intel processor.

The Intel part wins on cache hierarchy. It has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3, all larger than the AMD part's corresponding cache levels. Workloads with high cache reuse would benefit.

The Intel part wins on memory bandwidth. Its 136.5 GB/s exceeds the AMD part's 89.6 GB/s by a substantial margin. Memory-intensive workloads and integrated GPU tasks that rely on memory throughput favor the Intel processor.

The Intel part wins on process node. Its 3 nm Intel process is a newer node than the 4 nm TSMC process used by the AMD part. This may have implications for power efficiency, though the TDP figures are close at 25 W versus 28 W.

The Intel part also wins on integrated graphics branding with the Arc B370, while the AMD part uses the Radeon 760M. The database provides no benchmark scores for either integrated GPU, so the comparison rests on the listed specifications alone.