AMD Ryzen 3 3100 vs Intel Core i5-1145GRE Comparison

Head-to-Head Benchmarks

The recorded database shows a decisive advantage for the AMD Ryzen 3 3100 in the only two direct head-to-head comparisons available. In Cinebench R15 multi-core, the AMD part scores 991 against Intel’s 705, a delta of 40.6%. That is a substantial margin, indicating the Ryzen chip sustains higher throughput across all cores under sustained render loads. The single-core result is even more lopsided: AMD scores 178 versus Intel’s 99, a 79.8% delta. This is unusual, as Intel’s Tiger Lake parts typically excel in lightly threaded tasks, but the data here is unambiguous.

The average benchmark score paints a similar picture, though with a narrower gap. The Ryzen 3 3100 averages 2055 across its tested workloads, while the Core i5-1145GRE averages 2025, a difference of roughly 1.5%. The Ryzen sits at the 46th percentile among all CPUs, and the Intel part at the 45th, so they occupy nearly identical positions in the overall distribution. The nearest rivals confirm this: the Ryzen’s closest competitor is the Intel Core i7-8705G at 2058 (a -0.1% delta) and the Core i3-10105T at 2058 (also -0.1%). The Intel i5-1145GRE’s nearest rival is the Core i5-1130G7 at 2026 (-0.1%), followed closely by three Xeon E3 parts all within -0.3% of its score.

What the head-to-head does not show is any workload where Intel wins. The winsA field is 2, winsB is 0. Every recorded comparison favors AMD. However, the benchmark suites are not identical. The Ryzen has results for 3DMark (single, 2, 4, 8, 16, and max threads) and Geekbench (single and multi-core), while the Intel part has Cinebench R20 and R23 scores that are not present for AMD. In Cinebench R23, Intel scores 7001 multi-core and 988 single-core; in R20, it scores 2940 multi-core and 414 single-core. These numbers are not directly comparable to the Ryzen’s results, but they give context for Intel’s capability in newer render tests.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 3 3100 is built on TSMC’s 7 nm process, with a die size of 74 mm² and 3,800 million transistors. It uses the Zen 2 architecture (codename Matisse) and is part of the Ryzen 3 generation. The Intel Core i5-1145GRE uses Intel’s 10 nm process, with a die size of 144 mm² (no transistor count is recorded). Its architecture is Tiger Lake, specifically Willow Cove-U, and it belongs to the Core i5 generation.

Both have 4 cores and 8 threads, but cache hierarchies differ sharply. The AMD part has 64 KB L1 per core, 512 KB L2 per core, and 16 MB shared L3. The Intel part has 80 KB L1 per core, 1.25 MB L2 per core, but only 8 MB shared L3. That means Intel has more private cache per core (L1 and L2) but half the shared L3, which can impact workloads that rely on a large shared pool of data.

Memory support also splits: AMD supports DDR4 dual-channel with a recorded bandwidth of 51.2 GB/s and no ECC. Intel supports both DDR4 and LPDDR4X in dual-channel mode, with ECC memory enabled. No bandwidth figure is recorded for Intel. PCIe lanes differ as well: AMD provides Gen 4 with 16 lanes (CPU only), while Intel provides Gen 4 with 4 lanes (CPU only). That is a major difference for expansion, but for a mobile part like the i5-1145GRE, fewer lanes are typical.

The sockets are incompatible: AMD uses Socket AM4, Intel uses BGA 1449 (soldered). The AMD chip has an unlocked multiplier; Intel does not. The Intel part includes integrated graphics (Iris Xe Graphics G7 80EU), while the AMD part has no integrated graphics recorded. The Intel part is a mobile segment chip with a 28 W TDP; the AMD is a desktop part with 65 W TDP. Base clocks are radically different: AMD runs at 3.60 GHz with a 3.90 GHz boost; Intel runs at 1500.00 MHz (1.50 GHz) with a 4.10 GHz boost. That low base clock reflects a power-optimized mobile design.

FAQ

Q: Which processor has the higher single-core score in the direct comparison?

A: The AMD Ryzen 3 3100 wins Cinebench R15 single-core with 178 versus Intel’s 99, a 79.8% advantage.

Q: How do the two compare in multi-core Cinebench R15?

A: AMD scores 991, Intel scores 705, giving AMD a 40.6% lead.

Q: What is the average benchmark score for each?

A: The Ryzen 3 3100 averages 2055, and the Core i5-1145GRE averages 2025. The Ryzen is 46th percentile, Intel is 45th.

Q: Do both processors have the same core and thread counts?

A: Yes, both have 4 cores and 8 threads.

Q: Which chip has more L3 cache?

A: AMD has 16 MB shared L3; Intel has 8 MB shared L3.

Q: Does the Intel part include integrated graphics?

A: Yes, it has Iris Xe Graphics G7 80EU. The AMD Ryzen 3 3100 has no integrated graphics recorded.

Specification Differences

| Specification | AMD Ryzen 3 3100 | Intel Core i5-1145GRE |

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

| Manufacturer | AMD | Intel |

| Base clock | 3.60 GHz | 1500.00 MHz |

| Boost clock | 3.90 GHz | 4.10 GHz |

| TDP | 65 W | 28 W |

| Socket | AMD Socket AM4 | Intel BGA 1449 |

| Architecture | Zen 2 | Tiger Lake |

| Codename | Matisse | Tiger Lake-U |

| Generation | Ryzen 3 (Zen 2, Matisse) | Core i5 (Willow Cove-U) |

| Process node | 7 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die size | 74 mm² | 144 mm² |

| L1 cache | 64 KB per core | 80 KB per core |

| L2 cache | 512 KB per core | 1.25 MB per core |

| L3 cache | 16 MB shared | 8 MB shared |

| Memory support | DDR4 | DDR4, LPDDR4X |

| Memory bandwidth | 51.2 GB/s | Not recorded |

| ECC memory | No | Yes |

| PCIe | Gen 4, 16 lanes | Gen 4, 4 lanes |

| Integrated graphics | None | Iris Xe Graphics G7 80EU |

| Market segment | Desktop | Mobile |

| Release date | 2020-04-23 | 2020-09-01 |

| Launch MSRP | $99 | $362 |

| Unlocked multiplier | Yes | No |

| Part number | 100-000000284 | SRK10 |

Where Each One Wins

The AMD Ryzen 3 3100 wins in raw compute throughput. The direct Cinebench R15 results show a 40.6% multi-core advantage and a 79.8% single-core advantage. Its larger L3 cache (16 MB versus 8 MB) and higher base clock (3.60 GHz versus 1.50 GHz) likely contribute to this. It also has a much lower launch MSRP of $99, and it is a desktop part with 16 PCIe Gen 4 lanes, making it suitable for systems with discrete GPUs or NVMe storage. The unlocked multiplier allows overclocking, which is not available on the Intel part.

The Intel Core i5-1145GRE wins in power efficiency and platform integration. Its 28 W TDP versus AMD’s 65 W makes it a better fit for compact, battery-powered or thermally constrained mobile designs. It includes Iris Xe Graphics, so a separate GPU is unnecessary for basic display output. It supports both DDR4 and LPDDR4X memory, with ECC enabled, which is a reliability feature for certain embedded or enterprise mobile workloads. Its boost clock reaches 4.10 GHz, higher than AMD’s 3.90 GHz, so in short bursts it can reach a higher peak frequency, even though the base clock is much lower. Its L1 and L2 caches are larger per core, which can help latency-sensitive code that fits in private caches.

For workloads involving sustained multi-threaded rendering, compilation, or scientific computing, the Ryzen 3 3100 is the clear choice based on the recorded data. For mobile deployments where power draw, integrated graphics, and memory flexibility matter, the Core i5-1145GRE is the better fit. The benchmark data does not show any head-to-head test where Intel wins, but its different feature set addresses a different market segment. The Ryzen 3 3100 is a desktop value part, while the i5-1145GRE is a mobile processor with a higher launch MSRP of $362, reflecting its integrated feature set and lower power envelope.