AMD Ryzen Embedded 8645HS vs Intel Arc G3 EXTREME Comparison

Where Each One Wins

The recorded data presents an unusual comparison: the AMD Ryzen Embedded 8645HS has no benchmark entries in the database, while the Intel Arc G3 EXTREME carries a full suite of 17 benchmark scores. Consequently, the Intel part wins every recorded head-to-head category by default. This is not a measure of superiority in a competitive sense, but rather a reflection of data availability. The Intel Arc G3 EXTREME posts an average benchmark score of 36,699, placing it in the 85th percentile of all CPUs in the database. The AMD Ryzen Embedded 8645HS holds a 50th percentile ranking with an average benchmark score of zero, indicating no measured performance data exists for it.

The Intel Arc G3 EXTREME's strengths are clearly visible across its benchmark suite. In multi-threaded workloads, it delivers strong scores: 14,655 in Cinebench R23 multi-core, 10,945 in Cinebench R20 multi-core, and 2,192 in Cinebench R15 multi-core. Single-thread performance is equally robust, with 1,862 in Cinebench R23 single-core, 1,545 in Cinebench R20 single-core, and 267 in Cinebench R15 single-core. The PassMark suite shows a multi-thread score of 30,659 and a single-thread score of 4,293. The data also indicates strong integer math performance at 71,164, floating-point math at 86,929, and extended instructions at 24,017. Data compression scores reach 307,094, and data encryption reaches 23,881.

The AMD Ryzen Embedded 8645HS, with its six cores and twelve threads, is designed for embedded applications. Its architecture is Zen 4 on the Hawk Point codename, manufactured on a 4 nm process by TSMC. The Intel Arc G3 EXTREME uses a Panther Lake codename, built on a 3 nm process by Intel, with fourteen cores and fourteen threads. The absence of AMD benchmark data means the database cannot confirm any use-case advantage for the AMD part. The Intel part, by contrast, shows balanced performance across both single-threaded and multi-threaded workloads, making it suitable for general computing tasks, content creation, and data processing based on the measured scores.

Architecture Differences

The two processors diverge significantly in their underlying designs. The AMD Ryzen Embedded 8645HS uses the Zen 4 architecture, part of the Ryzen Embedded series within the 8000 series generation. It is built by TSMC on a 4 nm process, featuring six cores and twelve threads. The base clock is 4.30 GHz with a boost clock of 5.00 GHz. The thermal design power is 45 watts. Cache is organized as 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The transistor count is 25,000 million, and the die size is 178 mm². Memory support is DDR5 with a dual-channel bus, delivering 89.6 GB/s of bandwidth. ECC memory is supported. The processor uses AMD Socket FP8 and provides PCIe Gen 4 with 20 lanes from the CPU. Integrated graphics are the Radeon 760M. The release date is April 1, 2024, and the production status is active.

The Intel Arc G3 EXTREME uses the Panther Lake codename, part of the Arc G3 generation. It is manufactured by Intel on a 3 nm process, featuring fourteen cores and fourteen threads. The base clock is 1.90 GHz with a boost clock of 4.70 GHz. The thermal design power is 25 watts, notably lower than the AMD part. Cache is organized as 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. Memory support is LPDDR5X with a dual-channel bus, delivering 136.5 GB/s of bandwidth. ECC memory is not supported. The processor uses Intel BGA 2540 and provides PCIe Gen 5 with 4 lanes from the CPU. Integrated graphics are the Arc B390. The release date is May 27, 2026, and the production status is active. The part number is SA4R3.

The architectural differences are substantial. The AMD part has fewer cores but a higher clock speed, while the Intel part has more cores but a lower base clock. The Intel part uses a smaller process node and a newer codename, but the AMD part offers ECC memory support, which is critical for embedded and reliability-focused applications. The Intel part provides higher memory bandwidth at 136.5 GB/s compared to 89.6 GB/s. PCIe lane counts differ: AMD offers 20 Gen 4 lanes, while Intel offers 4 Gen 5 lanes. The Intel part's 3 nm process and Panther Lake codename suggest a more advanced manufacturing node, but the AMD part's 4 nm process remains competitive for its segment.

Head-to-Head Benchmarks

Since the AMD Ryzen Embedded 8645HS has no recorded benchmark scores, the head-to-head comparison is entirely one-sided. The Intel Arc G3 EXTREME's scores serve as the only measurable performance data. In Cinebench R23 multi-core, the Intel part scores 14,655. In Cinebench R23 single-core, it scores 1,862. The Cinebench R20 multi-core score is 10,945, and the single-core score is 1,545. The Cinebench R15 multi-core score is 2,192, and the single-core score is 267.

The PassMark suite provides additional detail. The multi-thread score is 30,659, and the single-thread score is 4,293. Data compression scores 307,094, data encryption scores 23,881, extended instructions score 24,017, find prime numbers scores 248, floating-point math scores 86,929, integer math scores 71,164, physics scores 2,515, and random string sorting scores 37,331.

The nearest rivals for the Intel Arc G3 EXTREME in the database are all within a narrow margin. The Intel Core Ultra 5 225 has an average score of 36,938, which is 0.6% lower than the Arc G3 EXTREME. The AMD Ryzen 5 5600F scores 36,945, 0.7% lower. The AMD Ryzen 5 5500X3D scores 37,018, 0.9% lower. The AMD Ryzen AI 7 PRO 450 scores 37,093, 1.1% lower. These small deltas indicate that the Arc G3 EXTREME performs essentially on par with these established desktop and mobile processors, despite its mobile form factor and lower TDP.

The data shows that the Arc G3 EXTREME's strongest results are in data compression and integer math, where it posts scores of 307,094 and 71,164 respectively. The floating-point math score of 86,929 and the multi-thread score of 30,659 indicate balanced computational ability. The single-thread score of 4,293 suggests strong per-core performance, which is notable given the 1.90 GHz base clock. The boost clock of 4.70 GHz evidently contributes to this result.

FAQ

Q: What is the core count difference between the AMD Ryzen Embedded 8645HS and the Intel Arc G3 EXTREME?

A: The AMD Ryzen Embedded 8645HS has 6 cores and 12 threads. The Intel Arc G3 EXTREME has 14 cores and 14 threads.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Embedded 8645HS has a boost clock of 5.00 GHz. The Intel Arc G3 EXTREME has a boost clock of 4.70 GHz.

Q: Does either processor support ECC memory?

A: The AMD Ryzen Embedded 8645HS supports ECC memory. The Intel Arc G3 EXTREME does not support ECC memory.

Q: What is the memory bandwidth for each processor?

A: The AMD Ryzen Embedded 8645HS supports DDR5 with a dual-channel bus and 89.6 GB/s bandwidth. The Intel Arc G3 EXTREME supports LPDDR5X with a dual-channel bus and 136.5 GB/s bandwidth.

Q: What are the thermal design power ratings?

A: The AMD Ryzen Embedded 8645HS has a TDP of 45 watts. The Intel Arc G3 EXTREME has a TDP of 25 watts.

Q: How does the Intel Arc G3 EXTREME compare to its nearest rivals?

A: The Intel Arc G3 EXTREME has an average benchmark score of 36,699. Its nearest rivals are all within 1.1% of this score: the Intel Core Ultra 5 225 at 36,938 (0.6% lower), the AMD Ryzen 5 5600F at 36,945 (0.7% lower), the AMD Ryzen 5 5500X3D at 37,018 (0.9% lower), and the AMD Ryzen AI 7 PRO 450 at 37,093 (1.1% lower).

The Verdict

The database contains no benchmark scores for the AMD Ryzen Embedded 8645HS. All recorded performance data belongs to the Intel Arc G3 EXTREME. Therefore, any selection between these two processors must be based on architectural specifications rather than measured performance.

The Intel Arc G3 EXTREME is the only option with performance data. Its average benchmark score of 36,699 places it in the 85th percentile of all CPUs. It matches or slightly exceeds the performance of established processors like the Intel Core Ultra 5 225 and the AMD Ryzen 5 5600F, with deltas of -0.6% and -0.7% respectively. The Arc G3 EXTREME offers 14 cores, a 3 nm process, 136.5 GB/s memory bandwidth, and a 25-watt TDP. It is a mobile processor with integrated Arc B390 graphics.

The AMD Ryzen Embedded 8645HS offers 6 cores, a 5.00 GHz boost clock, ECC memory support, and a 45-watt TDP. It uses the Zen 4 architecture on a 4 nm process. Its 20 PCIe Gen 4 lanes are significantly more than the Intel part's 4 Gen 5 lanes. ECC support is a critical feature for embedded applications requiring data integrity. The higher TDP suggests more power draw, but the higher boost clock may compensate in single-threaded scenarios, though no data confirms this.

For users requiring measured performance, the Intel Arc G3 EXTREME is the only viable choice. For embedded applications where ECC memory and more PCIe lanes are necessary, the AMD Ryzen Embedded 8645HS has the architectural advantage. The Intel part's lower TDP and newer 3 nm process make it more power-efficient on paper. The AMD part's higher clock speeds and established Zen 4 architecture provide a different trade-off. The data does not support a clear performance winner because one side has no measurements. The architectural specifications indicate that the Intel part is better suited for power-constrained, multi-threaded mobile workloads, while the AMD part is better suited for embedded reliability-focused scenarios.