AMD EPYC 4484PX vs Intel Xeon 6511P Comparison

Where Each One Wins

The benchmark split between the Intel Xeon 6511P and the AMD EPYC 4484PX is decisive but not monolithic. The AMD EPYC 4484PX takes the majority of the recorded tests, winning 14 of the 17 head-to-head comparisons, while the Intel Xeon 6511P claims 3 victories. This distribution points to fundamentally different workload optimizations rather than a simple overall performance gap.

The Intel Xeon 6511P establishes its dominance in streaming, parallel math, and instruction-heavy workloads. It wins PassMark data compression with a score of 640,808 against 603,371 for the AMD part, a 6.2% advantage. The gap widens dramatically in extended instructions, where Intel scores 50,730 versus 43,315, a 17.1% lead. Most notably, floating-point math shows the Intel processor at 127,307 compared to 96,446 for AMD, a 32% margin. These results indicate the Xeon 6511P is the stronger choice for numerical simulation, scientific computing, and workloads that leverage wide SIMD instructions.

The AMD EPYC 4484PX, by contrast, excels in single-threaded responsiveness and integer-heavy tasks. Its most striking win is PassMark single-thread, where it scores 4,119 versus 2,545 for Intel, a 38.2% advantage. This is the largest delta in the entire comparison. The AMD chip also leads in find prime numbers (425 vs 308, a 27.5% edge), data encryption (36,499 vs 31,429, a 13.9% lead), and multithread throughput (50,547 vs 45,687, a 9.6% gain). Integer math is essentially a tie, with AMD at 162,993 and Intel at 162,524, a marginal 0.3% difference.

Across the Cinebench suite, the AMD EPYC 4484PX is consistently ahead. In Cinebench R23 multi-core, it scores 42,964 versus 41,196, and in single-core it scores 6,065 versus 5,815. Both are 4.1% margins, a pattern that repeats for R15 and R20 in both multi-core and single-core tests. This consistency suggests a per-clock efficiency advantage rather than a workload-specific quirk.

The practical use-case split is clear: the Intel Xeon 6511P suits floating-point-heavy, data-compression, and extended-instruction pipelines, while the AMD EPYC 4484PX is better for latency-sensitive single-threaded work, encryption, prime-number finding, and general multithreaded throughput.

Architecture Differences

The two processors represent divergent design philosophies from their respective manufacturers. The Intel Xeon 6511P is built on Granite Rapids architecture, part of the Xeon 6 generation, fabricated by Intel on a 5 nm process. It packs 16 cores and 32 threads, with a base clock of 2.30 GHz and a boost clock of 4.20 GHz. The AMD EPYC 4484PX belongs to the EPYC 4004 series, using Zen 4 architecture under the Raphael codename, fabricated by TSMC on the same 5 nm node. It offers 12 cores and 24 threads, but with significantly higher clocks: 4.40 GHz base and 5.60 GHz boost.

Cache hierarchies differ substantially. The Intel part allocates 112 KB of L1 per core, 2 MB of L2 per core, and 72 MB of shared L3. The AMD part uses 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3, augmented by a 1x 64MB 3D V-Cache slice. The AMD chip also carries a transistor count of 17,840 million across a die size of 2x 71 mm², whereas the Intel chip has no recorded transistor or die-size figures in the database.

Memory architecture presents another clear divide. The Intel Xeon 6511P supports eight-channel DDR5 with a memory bandwidth of 409.6 GB/s. The AMD EPYC 4484PX supports dual-channel DDR5 with 83.2 GB/s. This five-fold bandwidth advantage for Intel is consistent with its floating-point and data-compression wins, which rely heavily on memory throughput.

PCIe connectivity also differs. Intel provides Gen 5 with 136 lanes (CPU only), while AMD provides Gen 5 with 28 lanes (CPU only). Both support ECC memory. The AMD processor includes integrated Radeon Graphics, whereas Intel has no integrated graphics. The AMD chip uses Socket AM5, while Intel uses Socket 4710.

The release timeline shows the Intel part arriving later, with a release date of 2025-02-23, versus 2024-05-20 for AMD. Both are listed as Active in production status and share the same 94th percentile ranking among all CPUs in the database.

Head-to-Head Benchmarks

The most decisive Intel victory comes in PassMark floating-point math, where the Xeon 6511P scores 127,307 versus 96,446 for the EPYC 4484PX, a 32% lead. This is the largest percentage win for Intel in the entire comparison and aligns with the eight-channel memory interface feeding heavy arithmetic workloads.

The second-largest Intel win is PassMark extended instructions at 17.1%, with scores of 50,730 versus 43,315. Data compression follows at 6.2%, with Intel at 640,808 versus 603,371. These three wins share a common theme: they reward wide data paths and instruction-level parallelism.

The AMD EPYC 4484PX has its own set of commanding victories. The largest is PassMark single-thread at 38.2%, where AMD scores 4,119 versus 2,545. This is mirrored by the duplicate PassMark singlethread entry with identical scores. The next biggest AMD win is find prime numbers at 27.5% (425 vs 308), followed by data encryption at 13.9% (36,499 vs 31,429).

In multithread throughput, AMD leads by 9.6% with 50,547 versus 45,687. Physics tests show AMD ahead by 5.3% (4,938 vs 4,678), and random string sorting shows AMD ahead by 5.4% (71,642 vs 67,809). The Cinebench suite produces uniform 4.1% margins in AMD's favor across all six tests: R15 multi-core (4,330 vs 4,152), R15 single-core (611 vs 586), R20 multi-core (18,044 vs 17,302), R20 single-core (2,547 vs 2,442), R23 multi-core (42,964 vs 41,196), and R23 single-core (6,065 vs 5,815).

Integer math is the closest contest, with AMD at 162,993 and Intel at 162,524, a 0.3% difference that falls within normal run-to-run variance. The overall benchmark average tells a similar story: Intel averages 71,051, while AMD averages 67,822. Intel's nearest rivals in the database include the Intel Core Ultra 7 265K at 70,879 (0.2% delta), while AMD's nearest rival is the AMD Ryzen Threadripper PRO 5955WX at 67,868 (0.1% delta).

Specification Differences

| Specification | Intel Xeon 6511P | AMD EPYC 4484PX |

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

| Cores | 16 | 12 |

| Threads | 32 | 24 |

| Base clock | 2.30 GHz | 4.40 GHz |

| Boost clock | 4.20 GHz | 5.60 GHz |

| TDP | 150 W | 120 W |

| Socket | Intel Socket 4710 | AMD Socket AM5 |

| Architecture | Granite Rapids | Zen 4 |

| Codename | Granite Rapids | Raphael |

| Generation | Xeon 6 (Granite Rapids-SP) | EPYC (Zen 4 (Raphael)) |

| Process node | 5 nm | 5 nm |

| Foundry | Intel | TSMC |

| Transistors | Not recorded | 17,840 million |

| Die size | Not recorded | 2x 71 mm² |

| L1 cache | 112 KB per core | 64 KB per core |

| L2 cache | 2 MB per core | 1 MB per core |

| L3 cache | 72 MB shared | 128 MB shared |

| 3D V-Cache | None | 1x 64MB Slice |

| Memory support | DDR5 | DDR5 |

| Memory bus | Eight-channel | Dual-channel |

| Memory bandwidth | 409.6 GB/s | 83.2 GB/s |

| PCIe | Gen 5, 136 lanes | Gen 5, 28 lanes |

| Integrated graphics | N/A | Radeon Graphics |

| Release date | 2025-02-23 | 2024-05-20 |

| Part number | SRVU9 | 100-000001482 |

Both processors are unlocked in no way, with multiplier unlocked set to false for each. Both target the Server/Workstation market segment and support ECC memory.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon 6511P has 16 cores and 32 threads, while the AMD EPYC 4484PX has 12 cores and 24 threads.

Q: Why does the AMD EPYC 4484PX win most benchmarks despite having fewer cores?

A: The AMD part operates at much higher clocks, with a 4.40 GHz base and 5.60 GHz boost compared to 2.30 GHz and 4.20 GHz for Intel. Higher per-core frequency compensates for the 4-core deficit in most tested workloads.

Q: What is the largest performance gap between the two processors?

A: The largest gap is in PassMark single-thread, where AMD scores 4,119 versus 2,545 for Intel, a 38.2% advantage. The largest Intel advantage is 32% in PassMark floating-point math.

Q: How do memory bandwidth capabilities compare?

A: The Intel Xeon 6511P offers eight-channel DDR5 with 409.6 GB/s bandwidth, while the AMD EPYC 4484PX offers dual-channel DDR5 with 83.2 GB/s.

Q: Which processor has more L3 cache?

A: The AMD EPYC 4484PX has 128 MB of shared L3 plus a 1x 64MB 3D V-Cache slice, while the Intel Xeon 6511P has 72 MB of shared L3.

Q: When was each processor released?

A: The AMD EPYC 4484PX was released on 2024-05-20, and the Intel Xeon 6511P was released on 2025-02-23.