AMD Ryzen 5 PRO 8640HS vs Intel Core 3 305 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall victory for the AMD Ryzen 5 PRO 8640HS, which wins 13 of the 17 head-to-head comparisons. The Intel Core 3 305 claims 4 wins. The margin of victory, however, varies dramatically by workload type.

In Cinebench testing, the AMD part is uniformly dominant. Across all six Cinebench benchmarks (R15, R20, and R23, each in single-core and multi-core variants), the Ryzen 5 PRO 8640HS wins by a tightly clustered margin of 38% to 38.2%. The multi-core results are particularly telling: Cinebench R23 multi-core shows 18104 for the AMD versus 13123 for the Intel, a 38% gap. Single-core Cinebench R23 shows 2555 versus 1852, also a 38% delta. This consistency across all three Cinebench versions indicates the advantage is architectural and scales uniformly with thread count and clock frequency.

The PassMark suite reveals an even wider spread in some tests. The largest win for the AMD processor is in PassMark integer math, where it scores 69839 against 32295, a 116.3% advantage. This result is more than double the Intel score and represents the single biggest performance differential in the entire dataset. Data compression also favors the AMD heavily: 246446 versus 146857, a 67.8% delta. Random string sorting shows a 71.6% advantage for the AMD (30235 versus 17623). Data encryption favors the AMD by 35.8% (14962 versus 11019), and extended instructions by 36.7% (18507 versus 13543). Multi-threaded PassMark shows the AMD ahead by 39% (21465 versus 15439).

The Intel Core 3 305 wins are narrower in count but notable in specific areas. PassMark single-thread shows the Intel ahead at 3977 versus 3561, a 10.5% advantage. This is a meaningful result: despite losing single-core Cinebench tests by 38%, the Intel part wins the PassMark single-thread test. The physics test also favors Intel: 1233 versus 1043, a 15.4% margin. The find prime numbers test shows Intel at 115 versus AMD at 71, a 38.3% advantage, which is the Intel's largest single win. Floating-point math is essentially tied, with the AMD ahead by only 1.7% (43019 versus 42284).

The average benchmark score tells the overall story: the AMD Ryzen 5 PRO 8640HS sits at 28478, while the Intel Core 3 305 sits at 18302. The AMD's percentile ranking among all CPUs is 80, compared to 72 for the Intel. The nearest rivals for the AMD include the Intel Xeon E-2436 at 28530 (0.2% behind) and the AMD Ryzen 7 PRO 6850U at 28379 (0.3% behind). The Intel Core 3 305's nearest rival is the Intel Core i3-14100 at 18318, just 0.1% ahead.

The Verdict

The data indicates that the AMD Ryzen 5 PRO 8640HS is the superior processor for the vast majority of compute-intensive tasks. Its 13 wins out of 17 benchmarks, combined with an average score 55.6% higher than the Intel part, make it the clear choice for multi-threaded workloads, integer-heavy computation, data compression, encryption, and general productivity.

The Intel Core 3 305, however, has specific strengths that should not be ignored. Its 10.5% win in PassMark single-thread and 15.4% win in physics indicate that for certain single-threaded or physics-simulation workloads, it can outperform the AMD. The prime number finding test advantage of 38.3% suggests particular algorithmic efficiencies in the Intel architecture.

The database shows the AMD processor at the 80th percentile of all CPUs, while the Intel sits at the 72nd percentile. The AMD's nearest rivals are all higher-scoring parts (Xeon E-2436 at 28530, Ryzen 7 PRO 6850HS at 28549, Core 5 220H at 28574), with the AMD trailing each by less than 0.5%. The Intel's nearest rivals include the Core i3-14100 and Core 5 330, all within 0.4% of its score.

Where Each One Wins

The AMD Ryzen 5 PRO 8640HS dominates in every Cinebench metric, which reflects sustained all-core rendering performance. The 38% margin across all Cinebench versions indicates that the AMD's 12 threads (versus 6 for the Intel) provide a substantial advantage in fully parallel workloads. The 116.3% win in integer math points to strong ALU throughput, and the 67.8% compression win suggests efficient memory access patterns and cache utilization. Encryption (35.8% ahead) and extended instructions (36.7% ahead) round out a comprehensive productivity advantage.

The Intel Core 3 305 wins in PassMark single-thread (3977 versus 3561), a test that measures per-core efficiency without hyperthreading overhead. Its physics win (1233 versus 1043) is notable because physics simulations often depend on specific instruction sequences and memory latency characteristics. The prime number test win (115 versus 71) is the largest percentage advantage for the Intel, indicating superior performance in that specific algorithmic pattern.

For users running heavily threaded workloads, rendering, data compression, or integer-heavy computation, the AMD Ryzen 5 PRO 8640HS is the data-backed choice. For single-threaded legacy applications, physics simulation, or prime-number-focused workloads, the Intel Core 3 305 delivers measurable advantages.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 5 PRO 8640HS has an average benchmark score of 28478, compared to 18302 for the Intel Core 3 305.

Q: How large is the AMD's advantage in multi-core Cinebench R23?

A: The AMD scores 18104 versus 13123 for the Intel, a 38% advantage.

Q: Does the Intel Core 3 305 win any benchmark by a large margin?

A: Yes. The Intel wins the PassMark find prime numbers test by 38.3%, scoring 115 against the AMD's 71.

Q: What is the difference in PassMark single-thread performance?

A: The Intel Core 3 305 scores 3977, which is 10.5% higher than the AMD's 3561.

Q: How do the processors compare in floating-point math?

A: The AMD Ryzen 5 PRO 8640HS scores 43019, only 1.7% ahead of the Intel's 42284. This is the closest benchmark in the dataset.

Q: What are the percentile rankings for each processor?

A: The AMD Ryzen 5 PRO 8640HS is at the 80th percentile of all CPUs, while the Intel Core 3 305 is at the 72nd percentile.

Architecture Differences

The AMD Ryzen 5 PRO 8640HS uses the Zen 4 architecture, codenamed Hawk Point, manufactured on a 4 nm process at TSMC. It contains 25,000 million transistors on a 178 mm² die. The Intel Core 3 305 uses the Wildcat Lake codename on a 3 nm process at Intel, with no transistor count or die size recorded in the database.

Both processors have 6 cores, but the AMD supports 12 threads via simultaneous multithreading, while the Intel has 6 threads. The AMD has a base clock of 3.50 GHz and boost clock of 4.90 GHz, compared to the Intel's 1.50 GHz base and 4.30 GHz boost. The AMD's thermal design power is 28 W, versus 15 W for the Intel.

Cache configurations differ substantially. The AMD uses 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Intel uses 192 KB of total L1, 2.5 MB of L2, and 6 MB of shared L3. The AMD's larger L3 cache (16 MB versus 6 MB) helps explain its compression and encryption advantages.

Memory support also diverges. The AMD supports DDR5 with dual-channel memory and 89.6 GB/s bandwidth. The Intel supports DDR5 and LPDDR5X but uses a single-channel memory bus with 59.7 GB/s bandwidth. The AMD supports ECC memory; the Intel does not. The AMD provides 20 PCIe Gen 4 lanes (CPU only), while the Intel provides 6 PCIe Gen 4 lanes.

The integrated graphics differ: the AMD uses Radeon 760M, while the Intel uses Xe3 Graphics with 1 Xe core. The Intel has a launch MSRP of $309. The AMD's socket is AMD Socket FP7, while the Intel uses Intel BGA 1516. Both are mobile processors with active production status. The AMD released on 2024-04-15, while the Intel release date is 2026-04-15. Neither processor has an unlocked multiplier.