AMD Ryzen 5 7500X3D vs Intel Core Ultra 7 266V Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split between the AMD Ryzen 5 7500X3D and the Intel Core Ultra 7 266V, with the AMD part taking 8 of 11 head-to-head benchmark wins. The largest margin belongs to AMD in the physics test, where it scores 2779 against Intel's 1608, a 72.8% advantage. Integer math also heavily favors AMD, with a 70774 score versus 41558, a 70.3% lead. These two results indicate the AMD processor's strength in computationally intensive, multi-threaded workloads.

AMD also wins data compression decisively, scoring 271649 against 187050, a 45.2% difference. Random string sorting follows with 32999 versus 22905, a 44.1% margin. Extended instructions show a 28.4% lead for AMD (20455 vs 15928), and multithread performance is 28.7% higher (25047 vs 19461). Data encryption favors AMD by 14.3% (15797 vs 13822), and prime number finding shows a 15.7% advantage (221 vs 191).

Intel's wins are narrower but meaningful. Floating point math goes to Intel with 56923 against 43594, a 23.4% difference. Single-thread performance favors Intel by 11.4%, with scores of 3943 versus 3494. These two results appear in both the single_thread and singlethread entries, confirming the consistency of the measurement. Intel's single-thread lead suggests the Lunar Lake architecture extracts more per-core efficiency in certain workloads, even though the AMD part is built on a desktop platform.

The overall average benchmark score reinforces the split: AMD's avgBenchmarkScore is 44573, placing it at the 89th percentile of all CPUs, while Intel's avgBenchmarkScore is 23297, at the 76th percentile. The delta between the two averages is substantial, but the individual workload results show that Intel is not uniformly behind.

FAQ

Q: Which processor wins the majority of the head-to-head benchmark comparisons?

A: The AMD Ryzen 5 7500X3D wins 8 of the 11 recorded head-to-head benchmarks, with the Intel Core Ultra 7 266V taking the remaining 3.

Q: What is the largest performance gap between the two in any single test?

A: The physics test shows the biggest gap, with AMD scoring 2779 versus Intel's 1608, a 72.8% advantage for AMD.

Q: In which tests does the Intel Core Ultra 7 266V outperform the AMD Ryzen 5 7500X3D?

A: Intel wins floating point math (56923 vs 43594, a 23.4% edge) and single-thread performance (3943 vs 3494, an 11.4% edge). Both single-thread entries in the data show the same result.

Q: How do the two compare in multithread performance?

A: AMD leads in the passmark_multithread test with a score of 25047 against Intel's 19461, a 28.7% advantage.

Q: What is the percentile ranking of each processor among all CPUs?

A: The AMD Ryzen 5 7500X3D sits at the 89th percentile of all CPUs, while the Intel Core Ultra 7 266V sits at the 76th percentile.

Q: What are the nearest rivals for each processor according to the database?

A: AMD's nearest rival is the Intel Core Ultra X9 388H with an average score of 44466 (0.2% delta), while Intel's nearest rival is the AMD Ryzen 7 5800H with an average score of 23277 (0.1% delta).

Architecture Differences

The two processors come from fundamentally different design philosophies. AMD's Ryzen 5 7500X3D is part of the 7000 series, built on the Zen 4 (Raphael) architecture using a 5 nm process at TSMC. It packs 6 cores and 12 threads, with a base clock of 4.00 GHz and a boost clock of 4.50 GHz. The cache hierarchy is notable: 64 KB of L1 per core, 1 MB of L2 per core, and a large 96 MB of shared L3 cache. The die size is 71 mm² with 11,270 million transistors. It uses the AMD Socket AM5 platform and supports DDR5 memory with dual-channel configuration, delivering 83.2 GB/s of memory bandwidth. ECC memory is supported. The integrated graphics are Radeon Graphics, and the PCIe interface is Gen 5 with 24 lanes from the CPU.

Intel's Core Ultra 7 266V belongs to Core Ultra Series 2, built on the Lunar Lake architecture using a 3 nm process, also at TSMC. It has 8 cores but only 8 threads, indicating no hyperthreading. The base clock is 2.20 GHz with a boost clock of 5.00 GHz. Cache allocation differs sharply: 192 KB of L1 per core, 2.5 MB of L2 per core, and only 12 MB of shared L3. Memory support is LPDDR5X, dependent on the motherboard, with dual-channel configuration and a higher memory bandwidth of 136.5 GB/s. ECC memory is not supported. Integrated graphics are Arc 140V, and PCIe is Gen 5 but with only 4 lanes from the CPU. The socket is Intel BGA 2833, indicating a mobile-oriented package. The TDP for Intel is 17 watts versus AMD's 65 watts, a substantial difference in power envelope.

The process node difference (5 nm vs 3 nm) and the cache size difference (96 MB L3 vs 12 MB L3) are the most significant architectural factors. AMD's larger L3 cache likely explains its dominance in data compression and sorting workloads, while Intel's smaller, faster-clocked cores with higher single-thread scores suggest a design optimized for burst performance and efficiency. Intel's memory bandwidth advantage (136.5 GB/s vs 83.2 GB/s) may contribute to its floating point math win.

The Verdict

The data supports a clear choice for desktop-focused, multi-threaded workloads: the AMD Ryzen 5 7500X3D. It wins the majority of benchmark categories, has a significantly higher average benchmark score (44573 vs 23297), and sits at a higher percentile ranking (89th vs 76th). Its 96 MB of shared L3 cache and 12 threads give it a structural advantage in tasks that benefit from large working sets and parallel execution. The physics test, with a 72.8% lead, and integer math, with a 70.3% lead, are the most decisive indicators of this strength.

The Intel Core Ultra 7 266V is the better choice for scenarios where single-thread responsiveness and floating point throughput matter more than raw multi-core throughput. Its 11.4% single-thread advantage and 23.4% floating point math lead are real, but they come in only two of the eleven recorded tests. The Intel part also operates at a much lower TDP (17 W vs 65 W), which is relevant for mobile or power-sensitive builds, but the database does not include efficiency benchmarks to quantify that trade-off.

For a builder prioritizing maximum multi-thread performance, large cache capacity, and desktop expandability, the AMD part is the data-backed pick. For a user who needs the highest possible single-core speed and floating point capability in a compact, low-power package, the Intel part has the edge. The 8-to-3 win record in the head-to-head benchmarks is the simplest summary: AMD wins most tests, but Intel wins the two tests that matter most for certain specialized workloads.

Specification Differences

| Specification | AMD Ryzen 5 7500X3D | Intel Core Ultra 7 266V |

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

| Series | 7000 series | Core Ultra Series 2 |

| Cores | 6 | 8 |

| Threads | 12 | 8 |

| Base Clock | 4.00 GHz | 2.20 GHz |

| Boost Clock | 4.50 GHz | 5.00 GHz |

| TDP | 65 W | 17 W |

| Socket | AMD Socket AM5 | Intel BGA 2833 |

| Codename | Raphael | Lunar Lake |

| Process Node | 5 nm | 3 nm |

| Foundry | TSMC | TSMC |

| Transistors | 11,270 million | Not specified |

| Die Size | 71 mm² | Not specified |

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

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

| L3 Cache | 96 MB (shared) | 12 MB (shared) |

| Memory Support | DDR5 | LPDDR5X (depends on motherboard) |

| Memory Bandwidth | 83.2 GB/s | 136.5 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 24 lanes (CPU only) | Gen 5, 4 lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Arc 140V |

| Market Segment | Desktop | Mobile |

| Release Date | 2025-11-11 | 2024-09-23 |

| Launch MSRP | $269 | Not specified |

| Part Number | 100-000001904 | SRPMMSRPMY |

Where Each One Wins

AMD Ryzen 5 7500X3D wins in data compression (45.2% ahead), data encryption (14.3% ahead), extended instructions (28.4% ahead), prime number finding (15.7% ahead), integer math (70.3% ahead), multithread (28.7% ahead), physics (72.8% ahead), and random string sorting (44.1% ahead). These are workloads that stress cache capacity, parallel thread execution, and integer arithmetic. The 96 MB L3 cache is the likely differentiator in the compression and sorting tests, where data reuse patterns benefit from a large on-die working set. The 12 threads versus 8 threads also explain the multithread and physics leads.

Intel Core Ultra 7 266V wins in floating point math (23.4% ahead) and single-thread performance (11.4% ahead). The floating point win is notable given the lower thread count, suggesting that the Lunar Lake cores execute FP operations more efficiently per clock. The single-thread lead, combined with a 5.00 GHz boost clock versus 4.50 GHz, indicates that the Intel part is tuned for latency-sensitive, lightly threaded tasks. The higher memory bandwidth (136.5 GB/s vs 83.2 GB/s) may also help in floating point workloads that stream large data sets.

The practical split is straightforward: AMD for parallel, cache-heavy, integer-driven tasks such as compression, encryption, and physics simulation; Intel for single-threaded responsiveness and floating point math such as scientific calculations or certain media processing. The data does not support Intel for multi-threaded throughput, but it does support Intel as a strong single-core performer within a much lower power envelope.