CPU Comparison

The AMD Ryzen 3 8300G and Intel Core 3 305 are two very different chips that happen to land near each other in aggregate benchmark scores. The AMD part is a desktop processor built for Socket AM5, while the Intel part is a mobile chip on BGA 1516. The data shows a clear split: Intel wins the majority of head-to-head tests, but AMD takes specific workloads by wide margins. The Intel Core 3 305 holds a 14-3 win advantage in the head-to-head suite, yet the overall average benchmark scores are nearly identical, 18,302 for Intel versus 18,169 for AMD. That narrow gap in overall average masks how differently these two execute work.

Head-to-Head Benchmarks

The Intel Core 3 305 wins every Cinebench test, but the margins are consistent rather than dramatic. In Cinebench R23 multi-core, Intel scores 13,123 against AMD’s 12,217, a 6.9% advantage. Single-core R23 shows the same pattern: Intel at 1,852 versus AMD at 1,724, also a 6.9% gap. The R20 and R15 results mirror this exactly, Intel leads by 6.8% to 7.0% in every Cinebench variant. These are uniform wins, suggesting a fundamental throughput advantage for Intel in rendering workloads.

The PassMark suite tells a more interesting story. Intel’s biggest wins come in floating-point math (42,284 vs 25,336, a 40.1% lead), physics (1,233 vs 755, a 38.8% lead), and prime number finding (115 vs 47, a 59.1% lead). The encryption test also goes Intel’s way by 17.3% (11,019 vs 9,115). Intel additionally wins extended instructions by 8.8%, multi-thread by 9.2%, and single-thread by 5.0%. These are substantial margins in compute-heavy tasks.

AMD’s three wins are concentrated and large. The Ryzen 3 8300G crushes Intel in integer math: 40,534 versus 32,295, a 25.5% advantage. It also wins data compression by 8.2% (158,952 vs 146,857) and random string sorting by 7.9% (19,013 vs 17,623). The compression and sorting wins suggest AMD’s memory subsystem or cache layout handles certain data manipulation tasks more efficiently. The integer math result is the single largest win for either side in the entire suite, and it points to a specific strength in AMD’s architecture.

Architecture Differences

The core configurations are fundamentally different. AMD uses 4 cores and 8 threads on a 4 nm TSMC process, while Intel uses 6 cores and 6 threads on a 3 nm Intel process. AMD’s design is Zen 4 architecture on the Phoenix2 codename, with a die size of 137 mm² and 20,900 million transistors. Intel’s Wildcat Lake architecture has no listed die size or transistor count, but it fits 6 cores into a 15 W TDP package versus AMD’s 65 W TDP.

Cache layouts diverge significantly. AMD allocates 64 KB of L1 per core and 1 MB of L2 per core, with 8 MB of shared L3. Intel provides 192 KB of L1 total and 2.5 MB of L2 total, with 6 MB of shared L3. This means AMD has a much larger per-core L2 allocation when you factor in core count, while Intel’s total cache is smaller but shared across more physical cores.

Memory support is another major split. AMD uses dual-channel DDR5 with 83.2 GB/s bandwidth and supports ECC memory. Intel uses single-channel DDR5 or LPDDR5X with 59.7 GB/s bandwidth and no ECC support. The bandwidth difference is nearly 40% in AMD’s favor, which explains some of the compression and sorting wins. PCIe connectivity also differs: AMD offers Gen 4 with 14 CPU lanes, Intel offers Gen 4 with only 6 CPU lanes.

The integrated graphics are distinct. AMD pairs the CPU with Radeon 740M graphics, while Intel includes Xe3 Graphics with 1 Xe core. Both are active production parts, but AMD launched in January 2024 with a launch MSRP of $176, while Intel arrived in April 2026 with a launch MSRP of $309. Neither has an unlocked multiplier, and both are listed with a 72nd percentile ranking among all CPUs.

Where Each One Wins

The Intel Core 3 305 is the clear choice for floating-point and physics-heavy workloads. Its 40.1% lead in floating-point math and 38.8% lead in physics benchmarks indicate strong SIMD and compute throughput. The 59.1% advantage in prime number finding suggests superior integer division and branch handling in certain algorithms. For encryption tasks, Intel’s 17.3% edge shows better cryptographic instruction efficiency. Anyone running scientific simulations, physics engines, or encryption workloads should favor Intel based on these numbers.

The AMD Ryzen 3 8300G owns integer math and data manipulation tasks. The 25.5% lead in integer math is massive, and the 8.2% compression and 7.9% random string sorting wins reinforce this pattern. The dual-channel memory with 83.2 GB/s bandwidth likely drives these results, as data compression and sorting are memory-latency sensitive. For file archiving, database operations, or any workload that shuffles large amounts of data, AMD is demonstrably faster.

In rendering, Intel holds a steady 6.9% to 7.0% advantage across all Cinebench versions. This is a modest but consistent lead that scales with thread count, Intel’s 6 physical cores outperform AMD’s 4 cores with 8 threads in these tests. The multi-thread PassMark result (Intel 15,439 vs AMD 14,018) confirms Intel’s overall parallel processing edge, but the AMD part’s SMT implementation keeps the gap narrower than the core count difference might suggest.

FAQ

Q: Which CPU has better single-core performance?

A: The Intel Core 3 305 wins single-core in both Cinebench and PassMark. It leads by 6.9% in Cinebench R23 single-core (1,852 vs 1,724) and by 5.0% in PassMark single-thread (3,977 vs 3,778).

Q: Is the AMD Ryzen 3 8300G better for any workload?

A: Yes, specifically integer math (25.5% ahead), data compression (8.2% ahead), and random string sorting (7.9% ahead). These are the only three tests where AMD wins in the head-to-head suite.

Q: How do memory bandwidth differences affect performance?

A: AMD supports dual-channel DDR5 with 83.2 GB/s, while Intel uses single-channel DDR5 or LPDDR5X with 59.7 GB/s. This bandwidth advantage likely contributes to AMD’s wins in memory-intensive tasks like compression and sorting.

Q: What is the core and thread configuration of each?

A: AMD has 4 cores and 8 threads, while Intel has 6 cores and 6 threads. Despite fewer physical cores, AMD’s SMT allows it to process 8 threads concurrently.

Q: Which CPU has a higher boost clock?

A: The AMD Ryzen 3 8300G boosts to 4.90 GHz, while the Intel Core 3 305 boosts to 4.30 GHz. AMD also has a higher base clock at 3.40 GHz versus Intel’s 1.50 GHz.

Q: Do both CPUs support ECC memory?

A: No. AMD supports ECC memory, while Intel does not. This is relevant for workstation or server builds where error correction is required.

Specification Differences

| Specification | AMD Ryzen 3 8300G | Intel Core 3 305 |

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

| Cores | 4 | 6 |

| Threads | 8 | 6 |

| Base Clock | 3.40 GHz | 1.50 GHz |

| Boost Clock | 4.90 GHz | 4.30 GHz |

| TDP | 65 W | 15 W |

| Socket | AMD Socket AM5 | Intel BGA 1516 |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | Intel |

| L1 Cache | 64 KB (per core) | 192 KB |

| L2 Cache | 1 MB (per core) | 2.5 MB |

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

| Memory Support | DDR5 | DDR5, LPDDR5X |

| Memory Bus | Dual-channel | Single-channel |

| Memory Bandwidth | 83.2 GB/s | 59.7 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 14 Lanes | Gen 4, 6 Lanes |

| Integrated Graphics | Radeon 740M | Intel Xe3 Graphics (1 Xe) |

| Market Segment | Desktop | Mobile |

| Transistors | 20,900 million | Not listed |

| Die Size | 137 mm² | Not listed |

The Verdict

The Intel Core 3 305 is the better all-around performer in raw benchmark terms. It wins 14 of 17 head-to-head tests, with consistent leads in rendering, floating-point math, physics, encryption, and single-thread workloads. The 6-core setup delivers more parallel throughput than AMD’s 4-core SMT design in most scenarios. For general productivity, scientific computing, or rendering tasks, the data clearly favors Intel.

The AMD Ryzen 3 8300G is the specialist. Its 25.5% lead in integer math is the largest single margin in the entire comparison, and it dominates data compression and sorting. The dual-channel memory with 83.2 GB/s bandwidth and ECC support make it a more capable platform for memory-sensitive workloads. The desktop socket and 65 W TDP also suggest upgradeability and sustained performance potential that the mobile Intel part cannot match.

The choice comes down to workload and platform. If you need maximum compute throughput across diverse tasks, the Intel Core 3 305 wins more tests and wins them by larger margins overall. If your work involves integer-heavy data processing, compression, or sorting, the AMD Ryzen 3 8300G offers a substantial performance advantage in those specific areas. The AMD part also provides ECC memory support and more PCIe lanes, which matter for certain professional use cases. The Intel part, meanwhile, offers dramatically lower power consumption at 15 W versus 65 W, which is critical for mobile deployments. Both parts sit at the 72nd percentile of all CPUs, but they achieve that ranking through very different strengths.