AMD Ryzen 5 9600X vs Intel Core 3 305 Comparison

Where Each One Wins

The benchmark data presents a completely one-sided picture. The AMD Ryzen 5 9600X wins all 15 head-to-head comparisons recorded in the database, while the Intel Core 3 305 does not register a single victory. This is not a marginal advantage; the deltas range from 14.9% to 178.4%, which places the two processors in distinctly different performance classes.

For single-threaded workloads, the Ryzen 5 9600X leads by 14.9% in PassMark single-thread testing (4570 vs 3977) and by 17.9% in Cinebench R23 single-core (2183.5 vs 1852). These are meaningful gaps for everyday responsiveness, but they are the narrowest margins in the entire comparison. The Intel part is relatively closer in lightly threaded tasks, though still clearly behind.

The gap widens dramatically in multi-threaded scenarios. Cinebench R23 multi-core shows the AMD processor at 17528.5 versus 13123 for Intel, a 33.6% lead. PassMark multi-thread testing shows a 94.5% advantage (30027 vs 15439). The most extreme divergence appears in integer math, where the Ryzen 5 9600X scores 89918 against 32295, a 178.4% difference. This suggests the AMD part delivers roughly 2.8 times the integer throughput of the Intel processor.

Specialized workloads amplify the separation. Data compression shows a 132.2% lead (341021 vs 146857), extended instructions show 106.9% (28023 vs 13543), and random string sorting shows 104% (35946 vs 17623). Prime number finding is 102.6% higher (233 vs 115). Floating-point math is 42.1% ahead (60081 vs 42284). Even data encryption, often a memory-bandwidth sensitive task, favors AMD by 51% (16638 vs 11019).

The use case split is therefore simple: the Ryzen 5 9600X is the superior choice for every measured workload category, from latency-sensitive single-thread tasks to throughput-heavy multi-threaded rendering, compression, and mathematical processing. The Intel Core 3 305 occupies a lower performance tier across the board, with no benchmark category where it pulls ahead.

Architecture Differences

The two processors come from fundamentally different design philosophies and market segments. The AMD Ryzen 5 9600X belongs to the 9000 series, built on the Zen 5 architecture with the Granite Ridge codename. It uses a 4 nm process node from TSMC and packs 8,315 million transistors on a 70.6 mm² die. The Intel Core 3 305 uses the Wildcat Lake codename on a 3 nm process node fabricated by Intel itself, with transistor count and die size not recorded in the database.

Core topology differs significantly. Both have 6 physical cores, but the AMD part supports 12 threads via simultaneous multithreading, while the Intel part has 6 threads, meaning no hyperthreading. This directly explains much of the multi-threaded benchmark gap. The AMD processor also runs at substantially higher clocks: 3.90 GHz base and 5.40 GHz boost versus 1.50 GHz base and 4.30 GHz boost for Intel.

Cache hierarchies reflect different design targets. The Ryzen 5 9600X has 80 KB of L1 per core (so 480 KB total across 6 cores), 1 MB of L2 per core (6 MB total), and 32 MB of shared L3. The Intel Core 3 305 has 192 KB of L1 as a single figure, 2.5 MB of L2, and only 6 MB of shared L3. The AMD part provides over five times the L3 capacity, which helps with repeated data access patterns.

Memory architecture also diverges. The AMD processor supports DDR5 with a dual-channel memory bus and 89.6 GB/s of bandwidth, plus ECC memory support. The Intel part supports both DDR5 and LPDDR5X but uses a single-channel memory bus with 59.7 GB/s of bandwidth and no ECC support. This 50% bandwidth deficit compounds the core-count disadvantage in memory-intensive workloads.

Platform and connectivity differ. AMD uses Socket AM5 with PCIe Gen 5 and 24 CPU lanes, and the multiplier is unlocked for overclocking. Intel uses BGA 1516 (a mobile socket), PCIe Gen 4 with only 6 CPU lanes, and a locked multiplier. The integrated graphics also differ: AMD provides Radeon Graphics, while Intel provides Xe3 Graphics with 1 Xe core. The Intel part targets the mobile segment, while the AMD part is a desktop processor.

FAQ

Q: Which processor has more threads?

A: The AMD Ryzen 5 9600X has 12 threads from 6 cores, while the Intel Core 3 305 has 6 threads from 6 cores. The AMD part uses simultaneous multithreading to double thread count.

Q: How do the base and boost clocks compare?

A: The AMD Ryzen 5 9600X runs at 3.90 GHz base and 5.40 GHz boost. The Intel Core 3 305 runs at 1.50 GHz base and 4.30 GHz boost. The AMD part has a 1.1 GHz higher boost clock.

Q: What is the memory bandwidth difference?

A: The AMD Ryzen 5 9600X has a dual-channel memory bus delivering 89.6 GB/s. The Intel Core 3 305 has a single-channel bus delivering 59.7 GB/s. This is a 29.9 GB/s gap in favor of AMD.

Q: Which processor supports ECC memory?

A: Only the AMD Ryzen 5 9600X supports ECC memory. The Intel Core 3 305 does not list ECC capability.

Q: What is the L3 cache difference?

A: The AMD Ryzen 5 9600X has 32 MB of shared L3 cache. The Intel Core 3 305 has 6 MB of shared L3 cache. AMD provides 26 MB more L3.

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 5 9600X has an average benchmark score of 29713, placing it in the 81st percentile of all CPUs. The Intel Core 3 305 has an average score of 18302, placing it in the 72nd percentile.

Specification Differences

| Specification | AMD Ryzen 5 9600X | Intel Core 3 305 |

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

| Cores | 6 | 6 |

| Threads | 12 | 6 |

| Base clock | 3.90 GHz | 1.50 GHz |

| Boost clock | 5.40 GHz | 4.30 GHz |

| TDP | 65 W | 15 W |

| Socket | AMD Socket AM5 | Intel BGA 1516 |

| Architecture | Zen 5 | (Wildcat Lake, no architecture field) |

| Process node | 4 nm | 3 nm |

| L1 cache | 80 KB per core | 192 KB (single figure) |

| L2 cache | 1 MB per core | 2.5 MB |

| L3 cache | 32 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 5, 24 lanes | Gen 4, 6 lanes |

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

| Market segment | Desktop | Mobile |

| Release date | 2024-08-07 | 2026-04-15 |

| Launch MSRP | $279 | $309 |

| Multiplier unlocked | Yes | No |

| Part number | 100-000001405 | SAE3L |

Head-to-Head Benchmarks

The largest single win for the AMD Ryzen 5 9600X comes in PassMark integer math, where it scores 89918 against 32295 for the Intel Core 3 305. That 178.4% delta is the most extreme in the dataset and reflects both the thread advantage and the higher clock speeds in arithmetic-heavy loops.

Data compression shows the second-largest gap at 132.2%. The AMD part scores 341021 versus 146857 for Intel. This workload benefits from the larger 32 MB L3 cache, which allows more working data to stay on-chip, and from the dual-channel memory interface feeding compressed data streams faster.

Cinebench R15 multi-core shows a 103.6% advantage (2691 vs 1322). This older benchmark scales strongly with thread count, so the AMD part's 12 threads versus 6 threads produce nearly double the score. PassMark multi-thread testing shows a 94.5% gap (30027 vs 15439), again reflecting the thread-count difference.

Extended instructions testing shows a 106.9% lead (28023 vs 13543). Random string sorting shows 104% (35946 vs 17623). Prime number finding shows 102.6% (233 vs 115). These three workloads all involve either heavy branching, memory access patterns, or specialized instruction paths, and the AMD architecture handles them all with a massive advantage.

The floating-point math gap is smaller but still substantial at 42.1% (60081 vs 42284). The data encryption delta is 51% (16638 vs 11019). PassMark physics shows a 63.2% lead (2012 vs 1233).

The closest results appear in single-threaded tests. Cinebench R23 single-core shows the AMD part at 2183.5 versus 1852 for Intel, a 17.9% lead. Cinebench R15 single-core shows 342 versus 186, an 83.9% lead. PassMark single-thread shows 4570 versus 3977, a 14.9% lead. Even at its best relative performance, the Intel Core 3 305 remains behind by double digits in every recorded benchmark.

The average benchmark score reinforces the overall picture. The AMD Ryzen 5 9600X averages 29713, while the Intel Core 3 305 averages 18302. That is a 62.4% gap in average performance. The nearest rivals in the database confirm the positioning: the AMD part sits among Ryzen 7-class processors like the 7840H and 8845HS, while the Intel part sits alongside the Core i3-14100 and Core 5 330. The Ryzen 5 9600X competes a tier above the Core 3 305 despite both having 6 cores, because its simultaneous multithreading, higher clocks, larger cache, and wider memory interface deliver a fundamentally higher performance ceiling.