AMD Ryzen 5 PRO 8640HS vs Intel Arc G3 Comparison

FAQ

Q: How do the core counts differ between the AMD Ryzen 5 PRO 8640HS and the Intel Arc G3?

A: The AMD Ryzen 5 PRO 8640HS uses 6 cores and 12 threads, while the Intel Arc G3 uses 14 cores and 14 threads. The Intel part has no hyperthreading, so its thread count equals its core count.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 5 PRO 8640HS boosts to 4.90 GHz, which is 0.30 GHz higher than the Intel Arc G3's 4.60 GHz boost.

Q: What are the process nodes for each chip?

A: The AMD Ryzen 5 PRO 8640HS is built on TSMC's 4 nm process, whereas the Intel Arc G3 is built on Intel's 3 nm process.

Q: Which chip supports ECC memory?

A: The AMD Ryzen 5 PRO 8640HS supports ECC memory, while the Intel Arc G3 does not.

Q: What is the memory bandwidth difference?

A: The Intel Arc G3 supports LPDDR5X memory with a bandwidth of 136.5 GB/s, which is 46.9 GB/s higher than the AMD Ryzen 5 PRO 8640HS's 89.6 GB/s with DDR5 memory.

Q: Which processor has a higher percentile rating in the database?

A: The AMD Ryzen 5 PRO 8640HS ranks at the 80th percentile among all CPUs, while the Intel Arc G3 ranks at the 50th percentile.

Architecture Differences

The AMD Ryzen 5 PRO 8640HS and Intel Arc G3 represent fundamentally different design approaches. The AMD part belongs to the 8000 series and uses the Zen 4 architecture under the Hawk Point codename. It is manufactured on a 4 nm process by TSMC, with 25,000 million transistors on a 178 mm² die. The Intel Arc G3, by contrast, uses the Panther Lake codename and is built on Intel's own 3 nm process, with no transistor count or die size recorded in the database.

Core organization differs substantially. The AMD chip provides 6 cores with simultaneous multithreading, yielding 12 threads. The Intel chip provides 14 physical cores without multithreading, yielding 14 threads. Cache hierarchies are also distinct. The AMD processor has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel processor has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The Intel part therefore holds an advantage in every cache level, with 2 MB more shared L3 cache.

Memory support diverges as well. The AMD chip uses DDR5 memory on a dual-channel bus, achieving 89.6 GB/s of bandwidth, with ECC support enabled. The Intel chip uses LPDDR5X memory on a dual-channel bus, achieving 136.5 GB/s of bandwidth, but lacks ECC support. PCIe connectivity also differs: the AMD processor offers Gen 4 with 20 lanes, while the Intel processor offers Gen 5 with 4 lanes.

Integrated graphics differ in naming and capability. The AMD Ryzen 5 PRO 8640HS includes a Radeon 760M, while the Intel Arc G3 includes an Arc B370. Both are mobile-market parts, and both are currently marked as Active in production status.

Head-to-Head Benchmarks

The database contains extensive benchmark results for the AMD Ryzen 5 PRO 8640HS, but no recorded benchmarks for the Intel Arc G3. Consequently, the head-to-head comparison relies entirely on the AMD chip's measured scores and its placement relative to other CPUs in the database.

The AMD Ryzen 5 PRO 8640HS delivers strong Cinebench results. In Cinebench R23 multicore, it scores 18,104 points, while its single-core score is 2,555 points. In Cinebench R20, it scores 7,603 points multicore and 1,073 points single-core. In Cinebench R15, it scores 1,824 points multicore and 257 points single-core. These results place the chip comfortably in the upper tier of mobile processors.

PassMark results further characterize the AMD chip's performance. Its multithread score is 21,465, and its single-thread score is 3,561. In integer math, it scores 69,839, while floating-point math reaches 43,019. Data compression scores 246,446, and data encryption scores 14,962. Extended instructions (SIMD) score 18,507, and random string sorting scores 30,235. Physics simulation scores 1,043, and prime number finding scores 71.

The average benchmark score for the AMD Ryzen 5 PRO 8640HS is 28,478, which ranks it at the 80th percentile of all CPUs in the database. Its nearest rivals in the database are the Intel Xeon E-2436 with an average score of 28,530 (0.2% higher), the AMD Ryzen 7 PRO 6850HS with an average score of 28,549 (0.2% higher), the Intel Core 5 220H with an average score of 28,574 (0.3% higher), and the AMD Ryzen 7 PRO 6850U with an average score of 28,379 (0.3% lower). These deltas are small, indicating that the 8640HS sits within a tight performance cluster.

Since the Intel Arc G3 has no benchmark entries in the database, its average benchmark score is recorded as 0, and it has no nearest rivals. The database therefore provides no direct measurement of its computational performance. Its 50th percentile ranking reflects the absence of recorded data rather than a measured performance level.

Specification Differences

The two processors differ across nearly every recorded specification field:

• Cores: 6 (AMD) vs 14 (Intel)
• Threads: 12 (AMD) vs 14 (Intel)
• Base clock: 3.50 GHz (AMD) vs 1.90 GHz (Intel)
• Boost clock: 4.90 GHz (AMD) vs 4.60 GHz (Intel)
• TDP: 28 W (AMD) vs 25 W (Intel)
• Socket: AMD Socket FP7 (AMD) vs Intel BGA 2540 (Intel)
• Codename: Hawk Point (AMD) vs Panther Lake (Intel)
• Process node: 4 nm (AMD) vs 3 nm (Intel)
• Foundry: TSMC (AMD) vs Intel (Intel)
• L1 cache: 64 KB per core (AMD) vs 192 KB per core (Intel)
• L2 cache: 1 MB per core (AMD) vs 2.5 MB per core (Intel)
• L3 cache: 16 MB shared (AMD) vs 18 MB shared (Intel)
• Memory support: DDR5 (AMD) vs LPDDR5X (Intel)
• Memory bandwidth: 89.6 GB/s (AMD) vs 136.5 GB/s (Intel)
• ECC support: Yes (AMD) vs No (Intel)
• PCIe: Gen 4, 20 lanes (AMD) vs Gen 5, 4 lanes (Intel)
• Integrated graphics: Radeon 760M (AMD) vs Arc B370 (Intel)
• Release date: 2024-04-15 (AMD) vs 2026-05-27 (Intel)
• Part number: 100-000001354(FP7r2),100-000001382(FP7) (AMD) vs SA4QZ (Intel)

Fields where the two are similar include market segment (both mobile), production status (both active), memory bus (both dual-channel), and multiplier unlocked (both false).

Where Each One Wins

The AMD Ryzen 5 PRO 8640HS wins on clock speed and measured performance. Its base clock of 3.50 GHz is 1.60 GHz higher than the Intel part's 1.90 GHz, and its boost clock of 4.90 GHz is 0.30 GHz higher. The database contains 17 benchmark scores for the AMD chip, all indicating solid performance, with an average score of 28,478 and an 80th percentile ranking. The AMD chip also supports ECC memory, which matters for error-sensitive workloads.

The Intel Arc G3 wins on architectural and bandwidth specifications. It has 8 more cores, 2 more threads, a larger L3 cache (18 MB vs 16 MB), larger per-core L1 and L2 caches, higher memory bandwidth (136.5 GB/s vs 89.6 GB/s), a smaller process node (3 nm vs 4 nm), and newer PCIe generation (Gen 5 vs Gen 4). Its 25 W TDP is 3 W lower than the AMD chip's 28 W TDP.

The absence of benchmark data for the Intel Arc G3 means its specification advantages cannot be translated into measured performance wins. The database records no scores for the Intel part, while the AMD part has a full suite of Cinebench and PassMark results. Any performance comparison between the two is therefore asymmetric: one chip has verified measurements, the other does not.

The Verdict

The AMD Ryzen 5 PRO 8640HS is the only one of the two with recorded benchmark data. Its average score of 28,478 places it at the 80th percentile, and its nearest rivals are all within 0.3% of its score, confirming that it sits in a competitive performance band. The Cinebench R23 multicore score of 18,104 and single-core score of 2,555 indicate strong throughput for mobile workloads. The PassMark multithread score of 21,465 and single-thread score of 3,561 reinforce that impression.

The Intel Arc G3 presents a specification profile that looks strong on paper: 14 cores, 18 MB of L3 cache, 136.5 GB/s of memory bandwidth, and a 3 nm process. However, the database contains no benchmarks for this chip, so its actual performance cannot be assessed from the recorded data. The 50th percentile ranking reflects the lack of measurements, not a measured outcome.

For users who require ECC memory support, the AMD Ryzen 5 PRO 8640HS is the clear choice, as the Intel Arc G3 lacks ECC entirely. For users who prioritize raw core count, cache capacity, and memory bandwidth on paper, the Intel Arc G3 has the specification advantage. But the absence of benchmark results for the Intel part means that advantage is unverified.

The release dates differ by over two years: the AMD chip launched on 2024-04-15, while the Intel chip is scheduled for 2026-05-27. The AMD chip is a mature, measured product; the Intel chip is newer and unmeasured. The database's verdict is straightforward: the AMD Ryzen 5 PRO 8640HS has demonstrated performance at the 80th percentile, while the Intel Arc G3 has no demonstrated performance at all.