AMD Ryzen 5 PRO 8640U vs Intel Core 5 315 Comparison

FAQ

Q: Which processor wins more individual benchmark comparisons?

A: The AMD Ryzen 5 PRO 8640U wins 13 of the 17 head-to-head benchmark comparisons, while the Intel Core 5 315 wins 4.

Q: How large is the multi-core performance gap in Cinebench R23?

A: The AMD Ryzen 5 PRO 8640U scores 19,982 in Cinebench R23 multi-core, which is 53.9% ahead of the Intel Core 5 315's score of 12,981.

Q: Does the Intel Core 5 315 win any benchmark categories?

A: Yes, the Intel Core 5 315 wins in PassMark find prime numbers (112 vs 78, a 30.4% advantage), PassMark physics (1,163 vs 1,154, a 0.8% advantage), and PassMark single-thread tests (4,021 vs 3,732, a 7.2% advantage).

Q: What are the core and thread counts for each processor?

A: Both processors have 6 cores. The AMD Ryzen 5 PRO 8640U has 12 threads, while the Intel Core 5 315 has 6 threads.

Q: How do the average benchmark scores compare?

A: The AMD Ryzen 5 PRO 8640U has an average benchmark score of 30,254, placing it in the 81st percentile of all CPUs. The Intel Core 5 315 has an average score of 18,188, placing it in the 72nd percentile.

Q: What is the launch MSRP of the Intel Core 5 315?

A: The Intel Core 5 315 has a launch MSRP of $340. The AMD Ryzen 5 PRO 8640U does not have a recorded launch MSRP in the database.

Architecture Differences

The AMD Ryzen 5 PRO 8640U uses the Zen 4 architecture under the Hawk Point codename, built on a 4 nm process at TSMC with 25,000 million transistors on a 178 mm² die. It belongs to the 8000 series and the Ryzen 5 generation. The Intel Core 5 315 uses the Wildcat Lake codename, built on a 3 nm process at Intel, and belongs to the Core 5 generation. Intel's transistor count and die size are not recorded in the database.

Cache configurations differ substantially. The AMD part allocates 64 KB of L1 per core and 1 MB of L2 per core, with 16 MB of shared L3. The Intel part has 192 KB of L1 total, 2.5 MB of L2 total, and 6 MB of shared L3. The AMD design provides significantly more total cache capacity, which correlates with its large leads in data-heavy workloads.

Memory support also diverges. The AMD Ryzen 5 PRO 8640U supports DDR5 on a dual-channel bus with 89.6 GB/s of memory bandwidth and ECC memory enabled. The Intel Core 5 315 supports DDR5 and LPDDR5X on a single-channel bus with 59.7 GB/s of memory bandwidth and no ECC support. PCIe connectivity differs as well: AMD provides Gen 4 with 20 lanes (CPU only), while Intel provides Gen 4 with 6 lanes (CPU only).

Integrated graphics differ by vendor. The AMD part uses the Radeon 760M, while the Intel part uses Intel Xe3 Graphics with 2 Xe cores. Both are mobile processors with active production status.

Where Each One Wins

The AMD Ryzen 5 PRO 8640U dominates multi-threaded and data-intensive workloads. In Cinebench R15, R20, and R23 multi-core tests, it leads by roughly 54% across the board. PassMark integer math shows a 136.3% advantage, random string sorting delivers an 83% lead, and data compression shows a 78.5% lead. These results point to a processor that handles rendering, compilation, compression, and general productivity tasks with substantial headroom over the Intel part.

The AMD processor also wins in floating-point math, though by a narrower 6.7% margin, and in data encryption by 42.5%. Extended instructions show a 45.6% advantage. The overall pattern is clear: for sustained multi-core workloads, the AMD part is the stronger choice.

The Intel Core 5 315 wins in four specific areas. Its single-thread PassMark score of 4,021 beats AMD's 3,732 by 7.2%. It also wins PassMark physics by a negligible 0.8% margin (1,163 vs 1,154), and it wins find prime numbers by 30.4% (112 vs 78). These wins suggest the Intel part has a slightly stronger single-core peak in certain workloads, but the overall single-core Cinebench results tell a different story: AMD leads single-core Cinebench R15, R20, and R23 by 54%, 54%, and 54% respectively. The PassMark single-thread result is the exception rather than the rule.

For workloads that rely on raw integer throughput, multi-core rendering, or memory bandwidth, the AMD Ryzen 5 PRO 8640U is the clear winner. For specific single-threaded PassMark workloads and prime number calculations, the Intel Core 5 315 shows localized advantages.

Specification Differences

| Specification | AMD Ryzen 5 PRO 8640U | Intel Core 5 315 |

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

| Cores | 6 | 6 |

| Threads | 12 | 6 |

| Base clock | 3.50 GHz | 1.50 GHz |

| Boost clock | 4.90 GHz | 4.40 GHz |

| TDP | 28 W | 15 W |

| Socket | AMD Socket FP7 | Intel BGA 1516 |

| Process node | 4 nm (TSMC) | 3 nm (Intel) |

| L1 cache | 64 KB (per core) | 192 KB (total) |

| L2 cache | 1 MB (per core) | 2.5 MB (total) |

| L3 cache | 16 MB (shared) | 6 MB (shared) |

| Memory support | DDR5 | DDR5, LPDDR5X |

| Memory bus | Dual-channel | Single-channel |

| Memory bandwidth | 89.6 GB/s | 59.7 GB/s |

| ECC memory | Yes | No |

| PCIe | Gen 4, 20 lanes | Gen 4, 6 lanes |

| Integrated graphics | Radeon 760M | Intel Xe3 Graphics (2 Xe) |

| Release date | 2024-04-15 | 2026-04-15 |

| Launch MSRP | Not recorded | $340 |

The AMD processor has a higher base clock by 2.0 GHz and a higher boost clock by 0.5 GHz. It also has twice the threads, dual-channel memory, and more PCIe lanes. The Intel part has a lower TDP (15 W vs 28 W), a smaller process node (3 nm vs 4 nm), and supports LPDDR5X in addition to DDR5.

Head-to-Head Benchmarks

The AMD Ryzen 5 PRO 8640U wins every Cinebench test in the comparison. In Cinebench R15 multi-core, it scores 2,014 versus 1,308, a 54% lead. In R15 single-core, it scores 284 versus 184, a 54.3% lead. The R20 tests show 8,392 versus 5,452 in multi-core (53.9% lead) and 1,184 versus 769 in single-core (54% lead). Cinebench R23 multi-core shows 19,982 versus 12,981, a 53.9% lead, and R23 single-core shows 2,821 versus 1,832, a 54% lead.

PassMark tests show a more varied picture. The AMD part leads data compression with 260,925 versus 146,143, a 78.5% advantage. Data encryption shows 15,843 versus 11,119, a 42.5% lead. Extended instructions deliver 19,130 versus 13,143, a 45.6% lead. Integer math is the largest gap: 74,875 versus 31,690, a 136.3% advantage. Multithread performance shows 22,795 versus 15,272, a 49.3% lead. Random string sorting delivers 32,114 versus 17,551, an 83% lead. Floating-point math is closer: 45,265 versus 42,441, a 6.7% lead.

The Intel Core 5 315 wins four tests. Find prime numbers shows 112 versus 78, a 30.4% advantage for Intel. Physics shows 1,163 versus 1,154, a 0.8% edge. PassMark single-thread and singlethread both show 4,021 versus 3,732, a 7.2% lead for Intel.

The Verdict

The benchmark data presents a lopsided comparison. The AMD Ryzen 5 PRO 8640U wins 13 of 17 tests, with dominant leads in multi-core rendering, integer math, compression, encryption, and extended instructions. Its 6-core, 12-thread configuration with dual-channel memory and 16 MB of L3 cache supports heavy parallel workloads effectively. The Cinebench results show a consistent 54% advantage across every single-core and multi-core test, which is a decisive margin.

The Intel Core 5 315 offers a lower TDP of 15 W, a smaller 3 nm process, and a higher PassMark single-thread score. It also wins in physics and prime number calculations. For workloads that match those specific patterns, the Intel part has an edge. The PassMark single-thread result (4,021 vs 3,732) indicates that Intel's single-core peak can exceed AMD's in some scenarios, despite losing all three Cinebench single-core tests by wide margins.

The AMD Ryzen 5 PRO 8640U sits in the 81st percentile of all CPUs with an average score of 30,254, while the Intel Core 5 315 sits in the 72nd percentile with an average score of 18,188. The AMD part's nearest rivals include the AMD Ryzen 7 2700X (0.1% higher), AMD Ryzen 7 7736U (0.4% higher), AMD Ryzen 5 7640HS (0.4% higher), and Intel Core i9-11980HK (0.6% higher). The Intel Core 5 315's nearest rivals include the AMD EPYC 9274F (0% difference), Intel Core i7-9700 (0% difference), Intel Core i7-1365U (0.1% higher), and AMD Ryzen 7 5700U (0.1% higher).

Users who prioritize multi-threaded productivity, rendering, compression, and memory-heavy tasks should select the AMD Ryzen 5 PRO 8640U. The data shows it delivers 136.3% higher integer math throughput and 78.5% higher compression throughput. Users who need the lowest power envelope, LPDDR5X memory support, or specific single-thread PassMark workloads may consider the Intel Core 5 315, but the recorded benchmark results indicate the AMD part is the stronger overall performer in the majority of tested scenarios.