AMD Ryzen 3 5305G vs Intel Core 3 305 Comparison

Architecture Differences

The AMD Ryzen 3 5305G and the Intel Core 3 305 represent two fundamentally different approaches to processor design. The AMD part belongs to the 5000 series and uses the Zen 3 architecture under the Cezanne codename, built on a 7 nm process at TSMC. The Intel Core 3 305 uses the Wildcat Lake codename, manufactured on a 3 nm process at Intel's own fabs. The process node difference is substantial, with Intel's 3 nm offering a much denser transistor layout, though the AMD chip integrates 10,700 million transistors across a 180 mm² die, figures not disclosed for the Intel part.

Core and thread counts diverge sharply. The Ryzen 3 5305G has 4 cores and 8 threads, relying on simultaneous multithreading to reach 8 execution threads. The Intel Core 3 305 has 6 physical cores and 6 threads, meaning no hyper-threading support. The Intel chip compensates with two additional physical cores, while the AMD chip relies on its extra threads. Base clocks differ dramatically: the Ryzen 3 5305G runs at 4.00 GHz base and 4.20 GHz boost, while the Intel Core 3 305 runs at 1.50 GHz base and 4.30 GHz boost. The Intel part has a much lower base clock but a slightly higher boost ceiling.

Cache hierarchies are organized differently. The AMD processor uses per-core L1 and L2 caches (64 KB and 512 KB per core respectively) plus an 8 MB L3 cache. The Intel processor lists a total L1 cache of 192 KB, an L2 cache of 2.5 MB, and 6 MB of shared L3 cache. The AMD chip's larger L3 allocation may benefit workloads with shared data, while the Intel chip's smaller L3 reflects its mobile-oriented design.

Memory support presents a major architectural split. The Ryzen 3 5305G uses DDR4 memory over a dual-channel bus, providing 51.2 GB/s of bandwidth. The Intel Core 3 305 supports DDR5 and LPDDR5X, but only over a single-channel memory bus, delivering 59.7 GB/s. The Intel part achieves higher peak bandwidth despite the single-channel interface, thanks to the faster memory standard. PCIe capabilities also differ: AMD offers Gen 3 with 16 lanes from the CPU, while Intel provides Gen 4 with 6 lanes. The Intel platform's newer PCIe generation supports faster transfer rates per lane, though with fewer total lanes.

Integrated graphics differ as well. The AMD Ryzen 3 5305G includes Radeon Vega 6 graphics, while the Intel Core 3 305 carries Intel Xe3 Graphics with 1 Xe core. The AMD part is socketed for AMD Socket AM4 and targets the desktop market segment, while the Intel part uses Intel BGA 1516 and is classified as a mobile processor. The AMD multiplier is unlocked, the Intel multiplier is locked. The AMD chip released on 2025-02-23, the Intel chip on 2026-04-15. The Intel part carries a launch MSRP of $309. Neither processor supports ECC memory.

Head-to-Head Benchmarks

The recorded benchmark data covers only the Intel Core 3 305, so the comparison relies on the Intel chip's absolute scores and its position against rivals in the database. The Intel Core 3 305 posts an average benchmark score of 18302, placing it at the 72nd percentile of all CPUs in the database. Its nearest rivals in the database are tightly clustered: the Intel Core i3-14100 scores 18318, a delta of -0.1%, the Intel Core 5 330 scores 18345, a delta of -0.2%, the Intel Core 7 360 scores 18374, a delta of -0.4%, and the AMD Ryzen 5 2600E scores 18230, a delta of 0.4%. The data shows the Intel Core 3 305 sits within a 0.4% band of all four rivals, indicating near-identical overall performance in the database's aggregate scoring.

Cinebench results for the Intel Core 3 305 show a multi-core score of 1322 in Cinebench R15, 5511 in R20, and 13123 in R23. Single-core results measure 186 in R15, 777 in R20, and 1852 in R23. The R23 multi-core score of 13123 versus the single-core score of 1852 produces a multi-to-single ratio of roughly 7.1, reflecting the six physical cores scaling effectively in threaded workloads. The single-core R23 result of 1852 indicates strong per-core performance, consistent with the 4.30 GHz boost clock.

PassMark results reveal specific workload characteristics. The Intel Core 3 305 scores 146857 in data compression, 11019 in data encryption, and 13543 in extended instructions. Integer math reaches 32295, floating point math reaches 42284, and find prime numbers scores 115. The multithread score is 15439, while the single-thread score is 3977. Physics processing scores 1233, and random string sorting scores 17623. The floating point math score of 42284 exceeds the integer math score of 32295 by roughly 31%, indicating the processor's floating point unit handles compute-heavy tasks more efficiently than integer workloads. The data compression score of 146857 is the highest single PassMark subtest result, showing strong throughput in compression algorithms. The find prime numbers score of 115 is by far the lowest subtest result, suggesting this workload does not map well to the processor's architecture.

The aggregate position against the Intel Core i3-14100, a desktop part with similar market positioning, shows a delta of only -0.1%. The Intel Core 3 305 essentially matches that rival in average score, despite the mobile form factor and single-channel memory. The delta of -0.4% against the Intel Core 7 360, a higher-tier part, indicates the Core 3 305 trails by a negligible margin in the database's aggregate measurement. Against the AMD Ryzen 5 2600E, the Intel Core 3 305 leads by 0.4%, the largest positive delta among its nearest rivals.

FAQ

Q: How does the Intel Core 3 305 compare to its nearest rival, the Intel Core i3-14100?

A: The Intel Core 3 305 has an average benchmark score of 18302, while the Intel Core i3-14100 scores 18318. The delta is -0.1%, meaning the Core 3 305 trails by one-tenth of one percent, a difference well within measurement noise.

Q: What is the performance gap between the Intel Core 3 305 and the AMD Ryzen 5 2600E?

A: The Intel Core 3 305 leads the AMD Ryzen 5 2600E by 0.4%. The AMD part scores 18230 in the database, while the Intel chip scores 18302.

Q: Does the Intel Core 3 305 support multithreading?

A: No. The Intel Core 3 305 has 6 cores and 6 threads, meaning each core handles exactly one thread. The AMD Ryzen 3 5305G, by contrast, has 4 cores and 8 threads, using simultaneous multithreading to double its thread count.

Q: Which processor has a higher boost clock?

A: The Intel Core 3 305 boosts to 4.30 GHz, while the AMD Ryzen 3 5305G boosts to 4.20 GHz. The Intel part also has a much lower base clock of 1.50 GHz versus the AMD part's 4.00 GHz.

Q: What memory types does each processor support?

A: The AMD Ryzen 3 5305G supports DDR4 over a dual-channel bus with 51.2 GB/s bandwidth. The Intel Core 3 305 supports DDR5 and LPDDR5X over a single-channel bus with 59.7 GB/s bandwidth.

Q: What is the TDP difference between the two processors?

A: The AMD Ryzen 3 5305G has a 65 W TDP, while the Intel Core 3 305 has a 15 W TDP. The Intel chip draws substantially less power, consistent with its mobile market segment classification.

Specification Differences

| Specification | AMD Ryzen 3 5305G | Intel Core 3 305 |

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

| Cores | 4 | 6 |

| Threads | 8 | 6 |

| Base clock | 4.00 GHz | 1.50 GHz |

| Boost clock | 4.20 GHz | 4.30 GHz |

| TDP | 65 W | 15 W |

| Socket | AMD Socket AM4 | Intel BGA 1516 |

| Process node | 7 nm (TSMC) | 3 nm (Intel) |

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

| L2 cache | 512 KB per core | 2.5 MB |

| L3 cache | 8 MB | 6 MB (shared) |

| Memory support | DDR4 | DDR5, LPDDR5X |

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

| Memory bandwidth | 51.2 GB/s | 59.7 GB/s |

| PCIe | Gen 3, 16 lanes | Gen 4, 6 lanes |

| Integrated graphics | Radeon Vega 6 | Intel Xe3 Graphics (1 Xe) |

| Market segment | Desktop | Mobile |

| Multiplier | Unlocked | Locked |

| Release date | 2025-02-23 | 2026-04-15 |

| Launch MSRP | None | $309 |

The architectural differences extend beyond raw specifications. The AMD part's unlocked multiplier allows overclocking, while the Intel part is locked. The AMD chip uses an older PCIe generation but offers more lanes, while the Intel chip uses a newer generation with fewer lanes. The AMD part's dual-channel memory bus contrasts with the Intel part's single-channel bus, yet the Intel part's faster memory standard yields higher peak bandwidth. The Intel part's 3 nm process node represents a significant manufacturing advantage over AMD's 7 nm node, though the AMD part's transistor count of 10,700 million on a 180 mm² die provides a concrete measure that the Intel part lacks in the database.

Where Each One Wins

The Intel Core 3 305 wins in aggregate performance, holding a 72nd percentile position in the database compared to the AMD Ryzen 3 5305G's 50th percentile. The Intel chip's average benchmark score of 18302 places it in the upper half of all CPUs, while the AMD chip's score is not recorded in the database. The Intel part's six physical cores give it a structural advantage in multi-threaded workloads, as evidenced by its Cinebench R23 multi-core score of 13123. The 4.30 GHz boost clock supports strong single-thread performance, with a Cinebench R23 single-core score of 1852 and a PassMark single-thread score of 3977.

The AMD Ryzen 3 5305G wins in areas tied to its desktop design. The 65 W TDP allows sustained operation in desktop chassis without the thermal constraints of a 15 W mobile part. The dual-channel memory bus provides a wider memory path, which can benefit bandwidth-sensitive applications despite the lower peak bandwidth figure. The unlocked multiplier permits user-controlled overclocking, something the locked Intel part cannot offer. The AMD chip's 8 MB L3 cache exceeds the Intel chip's 6 MB shared L3, potentially improving hit rates for workloads with larger working sets. The 16 PCIe Gen 3 lanes from the CPU support more expansion devices than the Intel part's 6 Gen 4 lanes.

The Intel Core 3 305 wins on power efficiency, with a 15 W TDP versus the AMD chip's 65 W, a fourfold difference. The mobile market segment classification and BGA socket indicate the Intel part is designed for compact, low-power systems. The single-channel memory configuration and 6 PCIe lanes reflect a power-conscious design. The 3 nm process node supports this efficiency target. The Intel part's newer release date of 2026-04-15 versus the AMD part's 2025-02-23 shows a later market entry with a more advanced manufacturing process.

The database's nearest rival data places the Intel Core 3 305 in a tight cluster with the Intel Core i3-14100, Intel Core 5 330, Intel Core 7 360, and AMD Ryzen 5 2600E, all within 0.4% of each other. This clustering indicates the Intel chip delivers performance consistent with established mid-range parts. The AMD Ryzen 3 5305G, with no recorded benchmarks or rivals in the database, lacks comparable measurement data. The Intel part's recorded scores show particular strength in data compression (146857) and floating point math (42284), while the find prime numbers score of 115 highlights a specific weakness. The AMD chip's comparative strengths cannot be quantified from the database, as no benchmark results are recorded for it.