AMD EPYC 9184X vs Intel Core Ultra 7 265KF Comparison

Head-to-Head Benchmarks

The benchmark database shows a clear pattern: the Intel Core Ultra 7 265KF dominates the head-to-head comparison with 14 wins against 3 for the AMD EPYC 9184X. The most striking result is in floating-point math, where Intel scores 189,431 against AMD's 95,476, a staggering 98.4% advantage. That is nearly double the throughput, and it is the largest single margin in the entire comparison.

Single-thread performance is another decisive area. The Intel part scores 4,928 in PassMark's single-thread test, which is 74.6% ahead of the EPYC's 2,822. The same margin repeats across Cinebench single-core runs: 707 vs 576 in R15 (22.7% ahead), 2,948 vs 2,401 in R20 (22.8% ahead), and 7,021 vs 5,719 in R23 (22.8% ahead). For workloads that depend on one or two fast cores, the Intel chip is the obvious choice.

Multi-core Cinebench results follow the same trend. In R23 multi-core, Intel scores 49,736 against AMD's 40,515, a 22.8% lead. The R20 multi-core run shows 20,889 vs 17,016, and R15 multi-core shows 5,013 vs 4,083, both with the same 22.8% delta. PassMark's multithread test also lands at 22.8% in Intel's favor, with scores of 58,518 vs 47,665. These consistent deltas suggest the Intel architecture scales better across the benchmark suite.

Encryption and extended instruction work also favor Intel. Data encryption scores 48,198 vs 37,376, a 29% lead. Extended instructions (AVX and similar) score 54,513 vs 43,562, a 25.1% advantage. Data compression is closer but still Intel-favored: 666,589 vs 614,873, an 8.4% margin. Prime number finding is nearly even, with Intel at 486 vs AMD's 465, only 4.5% apart.

The AMD EPYC 9184X does have its wins. Integer math is the biggest one: 157,483 vs Intel's 143,351, a 9% advantage. Physics simulation is even more lopsided in AMD's favor: 6,674 vs 3,633, which is a 45.6% lead for the EPYC. Random string sorting is essentially a tie, with AMD ahead by just 0.2% (79,913 vs 79,735). Those three wins are meaningful, but they are narrow in scope compared to Intel's broad dominance.

The Verdict

The data points to a simple conclusion: the Intel Core Ultra 7 265KF is the faster processor for most general-purpose and compute-heavy tasks. It wins 14 of 17 head-to-head benchmarks, and its margins range from modest to overwhelming. The EPYC 9184X is not without strengths, but those strengths are concentrated in specific workload types.

For a desktop user or workstation builder who values responsiveness, compilation speed, and everyday application performance, the Intel part is the clear pick. Its single-thread lead of 74.6% in PassMark and 22.8% across all Cinebench single-core tests means snappier interactions and better performance in lightly threaded software. The 22.8% multi-core lead means it also handles parallel rendering, encoding, and analysis work faster.

The AMD EPYC 9184X should be chosen by someone whose workload is dominated by integer math, physics simulation, or string sorting. The 45.6% physics advantage is enormous, and the 9% integer math lead is not trivial. If those tasks are the daily driver, the EPYC will finish them sooner despite losing most other comparisons.

There is also the platform context. The EPYC is a server/workstation processor on Socket SP5 with 128 PCIe Gen 5 lanes and twelve-channel memory. The Intel part is a desktop chip on Socket 1851 with 20 PCIe Gen 5 lanes and dual-channel memory. The right choice depends on whether the workload fits the AMD wins or the Intel wins, and whether the platform requirements match the chip's capabilities.

Where Each One Wins

The Intel Core Ultra 7 265KF wins in every Cinebench test, every single-thread test, and most PassMark workloads. That includes rendering, encryption, compression, extended instructions, prime finding, floating-point math, and multithread throughput. It is the better chip for content creation, software development, data processing, and any task where raw compute throughput matters.

The AMD EPYC 9184X wins in integer math, physics, and random string sorting. Those are specific but important niches. Integer math is fundamental to database operations, financial calculations, and many scientific workloads. Physics simulation is critical for engineering, gaming physics, and computational research. Random string sorting is relevant for data indexing and text processing. If any of those dominate your usage, the EPYC's wins are worth the trade-offs elsewhere.

FAQ

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

A: The Intel Core Ultra 7 265KF, with a PassMark single-thread score of 4,928 versus the AMD EPYC 9184X's 2,822. That is a 74.6% lead.

Q: How big is the multi-core difference in Cinebench R23?

A: The Intel part scores 49,736 against the AMD's 40,515, which is a 22.8% advantage for Intel.

Q: Does the AMD EPYC 9184X win any benchmark by a large margin?

A: Yes, in PassMark physics it scores 6,674 versus Intel's 3,633, a 45.6% lead. It also wins integer math by 9% and random string sorting by 0.2%.

Q: What is the memory bandwidth difference?

A: The Intel Core Ultra 7 265KF has dual-channel memory with 102.4 GB/s bandwidth, while the AMD EPYC 9184X has twelve-channel memory with 460.8 GB/s bandwidth.

Q: Which processor supports ECC memory?

A: The AMD EPYC 9184X supports ECC memory. The Intel Core Ultra 7 265KF does not.

Q: How many PCIe lanes does each CPU provide?

A: The Intel chip provides 20 PCIe Gen 5 lanes, while the AMD EPYC provides 128 PCIe Gen 5 lanes.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core Ultra 7 265KF uses the Arrow Lake architecture on a 3 nm TSMC process, while the AMD EPYC 9184X uses Zen 4 on a 5 nm TSMC process. The Intel chip has 20 cores and 20 threads, meaning no simultaneous multithreading. The AMD chip has 16 cores and 32 threads, relying on SMT to double thread count.

Cache design is a major differentiator. The Intel part has 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3. The AMD EPYC has 64 KB of L1 per core, 1 MB of L2 per core, and a massive 768 MB of shared L3. That 768 MB cache is the standout feature, and it explains why the EPYC performs well in integer math and physics, workloads that often fit in large caches.

The transistor counts reflect the cache difference. Intel lists 17,800 million transistors on a 243 mm² die. AMD lists 90,160 million transistors spread across 8 dies of 72 mm² each. The EPYC's huge transistor count is almost entirely due to the L3 cache. Clock speeds also differ: Intel runs at 3.90 GHz base and 5.50 GHz boost, while AMD runs at 3.55 GHz base and 4.20 GHz boost. The Intel boost clock is 1.3 GHz higher, which explains its single-thread dominance.

The EPYC is built for server environments with 128 PCIe Gen 5 lanes, twelve-channel DDR5 memory, and ECC support. The Intel chip is a desktop processor with 20 PCIe Gen 5 lanes, dual-channel DDR5, and no ECC. The EPYC also has a locked multiplier, while the Intel part has an unlocked multiplier for overclocking.

Specification Differences

The table below highlights only the fields where the two parts differ.

| Specification | Intel Core Ultra 7 265KF | AMD EPYC 9184X |

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

| Cores | 20 | 16 |

| Threads | 20 | 32 |

| Base Clock | 3.90 GHz | 3.55 GHz |

| Boost Clock | 5.50 GHz | 4.20 GHz |

| TDP | 125 W | 320 W |

| Socket | Intel Socket 1851 | AMD Socket SP5 |

| Architecture | Arrow Lake | Zen 4 |

| Codename | Arrow Lake-S | Genoa-X |

| Process Node | 3 nm | 5 nm |

| Transistors | 17,800 million | 90,160 million |

| Die Size | 243 mm² | 8x 72 mm² |

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

| L2 Cache | 3 MB per core | 1 MB per core |

| L3 Cache | 30 MB shared | 768 MB shared |

| Memory Bus | Dual-channel | Twelve-channel |

| Memory Bandwidth | 102.4 GB/s | 460.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 5, 20 Lanes | Gen 5, 128 Lanes |

| Integrated Graphics | N/A | None |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2024-10-23 | 2023-06-12 |

| Launch MSRP | $379 | $4928 |

| Unlocked Multiplier | Yes | No |