AMD Ryzen 3 8300G vs AMD Ryzen 7 5700U Comparison

The AMD Ryzen 7 5700U and AMD Ryzen 3 8300G are both 72nd-percentile CPUs with nearly identical average benchmark scores (18176 vs 18169), yet they achieve that parity through completely different means. The 5700U is an 8-core mobile chip that wins 9 of 15 head-to-head tests, while the 8300G is a 4-core desktop chip that wins the other 6, including the most modern and demanding workloads. These are not interchangeable parts; they serve different builds and priorities.

The Verdict

Choose the AMD Ryzen 7 5700U if your priority is raw multi-threaded throughput in legacy and mixed workloads, or if you need a low-power mobile processor. The data shows it leads in 9 of 15 head-to-head benchmarks, with particularly dominant wins in integer math (48.1% ahead), data compression (37.7% ahead), data encryption (37.7% ahead), and floating-point math (30.8% ahead). It also wins the Cinebench R15 multicore test by 20.2%, and the single-core variant by 8.7%. Its 8 cores and 16 threads simply outmuscle the 8300G in most tasks that scale with core count.

Choose the AMD Ryzen 3 8300G if you want the latest architecture, a desktop platform, and superior performance in modern, lightly-threaded, or latency-sensitive tasks. It wins Cinebench R23 multicore by 29.2% and single-core by 27%, along with passmark single-thread by 32.2%, physics by 17.6%, and prime-number finding by 38.3%. The 8300G's Zen 4 cores are substantially faster per-thread, which shows in any benchmark that doesn't fully saturate all cores.

The overall average scores are a wash—the 5700U sits at 18176 and the 8300G at 18169. The deciding factor is platform and workload. For a thin-and-light laptop, the 5700U is the only option here. For a desktop where you want a modern socket, DDR5 support, and strong single-core performance, the 8300G is the clear pick.

Architecture Differences

The 5700U is built on Zen 2 architecture (codenamed Lucienne) using a 7 nm process from TSMC, with 9,800 million transistors on a 156 mm² die. The 8300G uses Zen 4 architecture (codenamed Phoenix2) on a 4 nm process, packing 20,900 million transistors into a smaller 137 mm² die. That node shrink and architecture leap explains the 8300G's per-core advantage.

Core counts differ significantly: the 5700U has 8 cores and 16 threads, while the 8300G has 4 cores and 8 threads. Cache layouts also differ. Both share 8 MB of L3, but the 5700U has 512 KB of L2 per core whereas the 8300G has 1 MB per core. L1 remains 64 KB per core on both.

Memory support is a major split. The 5700U uses DDR4 with dual-channel memory and 51.2 GB/s bandwidth. The 8300G uses DDR5 with dual-channel memory and 83.2 GB/s bandwidth. The 8300G also supports ECC memory; the 5700U does not. PCIe generations differ too: the 5700U offers Gen 3 with 12 CPU lanes, while the 8300G offers Gen 4 with 14 CPU lanes.

The integrated graphics are different as well. The 5700U pairs with Radeon Graphics 512SP, while the 8300G uses the Radeon 740M. The 5700U is a mobile part on Socket FP6 with a 15 W TDP, while the 8300G is a desktop part on Socket AM5 with a 65 W TDP. The 5700U launched in January 2021; the 8300G launched in January 2024.

Head-to-Head Benchmarks

Start with the modern heavyweights: Cinebench R23. The 8300G wins multicore with 12217 against the 5700U's 8650, a 29.2% margin. In single-core R23, the 8300G scores 1724 versus 1258, a 27% lead. These are the clearest statements of architectural superiority. Zen 4's higher IPC and 4.90 GHz boost clock (versus 4.30 GHz) overcome the 5700U's core-count advantage.

Now look at the older Cinebench R15. Here the 5700U flips the script. It wins multicore 1480 to 1231 (20.2% ahead) and single-core 188 to 173 (8.7% ahead). This suggests the R15 workload is more sensitive to raw core throughput than to per-core efficiency, which favors the 5700U's 8 cores.

The PassMark suite tells a similar story. The 5700U wins integer math 60037 to 40534, a 48.1% gap. It wins floating-point math 33151 to 25336 (30.8% ahead). Data compression goes to the 5700U at 218853 versus 158952 (37.7% ahead). Data encryption also goes to the 5700U at 12549 versus 9115 (37.7% ahead). Random string sorting favors the 5700U at 23608 versus 19013 (24.2% ahead). Extended instructions go to the 5700U by a smaller 9.4% margin (13519 vs 12354).

The 8300G takes the remaining PassMark tests. Single-thread scores are 3778 versus 2560, a 32.2% advantage for the 8300G. Physics goes to the 8300G at 755 versus 622 (17.6% ahead). Find prime numbers is a decisive 47 to 29 win for the 8300G, a 38.3% margin. The multithread test is closer: the 5700U wins 15623 to 14018, an 11.4% lead.

The pattern is consistent. The 5700U dominates in throughput-heavy, multi-threaded, and data-processing tasks. The 8300G dominates in single-thread, physics, and prime-calculation workloads. The 5700U wins the overall head-to-head count 9 to 6, but the 8300G's wins are in more modern benchmark categories.

Specification Differences

| Specification | AMD Ryzen 7 5700U | AMD Ryzen 3 8300G |

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

| Series | 5000 series | 8000 series |

| Cores | 8 | 4 |

| Threads | 16 | 8 |

| Base Clock | 1800.00 MHz | 3.40 GHz |

| Boost Clock | 4.30 GHz | 4.90 GHz |

| TDP | 15 W | 65 W |

| Socket | AMD Socket FP6 | AMD Socket AM5 |

| Architecture | Zen 2 | Zen 4 |

| Codename | Lucienne | Phoenix2 |

| Process Node | 7 nm | 4 nm |

| Transistors | 9,800 million | 20,900 million |

| Die Size | 156 mm² | 137 mm² |

| L2 Cache | 512 KB (per core) | 1 MB (per core) |

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

| Memory Support | DDR4 | DDR5 |

| Memory Bandwidth | 51.2 GB/s | 83.2 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 12 Lanes (CPU only) | Gen 4, 14 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics 512SP | Radeon 740M |

| Market Segment | Mobile | Desktop |

| Release Date | 2021-01-11 | 2024-01-07 |

| Launch MSRP | — | $176 |

| Multiplier Unlocked | No | No |

FAQ

Q: Which CPU has better single-core performance?

A: The AMD Ryzen 3 8300G. It wins single-core Cinebench R23 by 27% (1724 vs 1258) and PassMark single-thread by 32.2% (3778 vs 2560).

Q: Which CPU is better for multi-threaded workloads?

A: It depends on the test. The 5700U wins Cinebench R15 multicore by 20.2% (1480 vs 1231) and PassMark multithread by 11.4% (15623 vs 14018). However, the 8300G wins Cinebench R23 multicore by 29.2% (12217 vs 8650).

Q: Do they use the same memory type?

A: No. The 5700U supports DDR4 with 51.2 GB/s bandwidth, while the 8300G supports DDR5 with 83.2 GB/s bandwidth. The 8300G also supports ECC memory; the 5700U does not.

Q: Are these CPUs on the same socket?

A: No. The 5700U uses AMD Socket FP6 (mobile), while the 8300G uses AMD Socket AM5 (desktop). They are not interchangeable.

Q: Which CPU has more cores?

A: The Ryzen 7 5700U has 8 cores and 16 threads. The Ryzen 3 8300G has 4 cores and 8 threads.

Q: What is the overall performance ranking?

A: Both CPUs sit at the 72nd percentile against all CPUs. The 5700U has an average benchmark score of 18176, and the 8300G has 18169. They are effectively tied overall, with the 5700U winning 9 head-to-head tests and the 8300G winning 6.

Where Each One Wins

The Ryzen 7 5700U is the winner for data-heavy and parallel workloads. It leads in integer math, floating-point math, data compression, data encryption, and random string sorting by margins ranging from 24.2% to 48.1%. It also wins the older Cinebench R15 tests and the PassMark multithread test. Its 8 cores and 16 threads, combined with its 15 W TDP, make it the choice for mobile productivity, content creation on the go, and any task that can use all available threads. The data suggests it handles legacy software better, as shown by its R15 wins.

The Ryzen 3 8300G is the winner for single-threaded performance, modern rendering, and physics calculations. It wins Cinebench R23 multicore and single-core by 27-29%, PassMark single-thread by 32.2%, physics by 17.6%, and prime-number finding by 38.3%. Its Zen 4 architecture, 4.90 GHz boost clock, and larger per-core L2 cache (1 MB vs 512 KB) give it a decisive edge in tasks that rely on per-core efficiency rather than core count. Its DDR5 support, ECC capability, and PCIe Gen 4 make it the better foundation for a modern desktop build. The 8300G also has a higher base clock (3.40 GHz vs 1800 MHz), which helps in bursty, low-thread-count workloads.

In summary, pick the 5700U for maximum multi-threaded throughput and mobile efficiency. Pick the 8300G for modern architecture, single-core dominance, and a desktop platform with future-proof memory and PCIe support.