AMD EPYC 4465P vs Intel Xeon w5-3525 Comparison

The Intel Xeon w5-3525 and AMD EPYC 4465P occupy adjacent tiers in the benchmark database, with the AMD chip holding a 1.1% lead in average benchmark score (66,925 vs. 67,673) despite having 4 fewer cores. The head-to-head tally is lopsided — AMD wins 14 of 17 tests — but the Intel part’s three victories come in specialized workloads where its architectural traits dominate. This comparison is less about raw speed and more about workload-specific resource allocation, memory pathways, and the implications of a 65-watt EPYC outmuscling a 290-watt Xeon.

Where Each One Wins

The AMD EPYC 4465P is the clear winner in general-purpose compute. It takes every Cinebench iteration — R15, R20, and R23, both single- and multi-core — by a consistent 9.2% margin. This uniformity across render workloads suggests the Zen 5 architecture’s per-core efficiency is the deciding factor, not core count. The EPYC also sweeps PassMark’s integer-heavy tests: integer math (174,551 vs. 155,282, an 11% win), find prime numbers (338 vs. 218, a 35.5% blowout), and multithread (49,871 vs. 45,841, 8.1% ahead). Physics simulation (3,647 vs. 3,002) and random string sorting (67,597 vs. 63,579) also favor AMD, along with data encryption (32,184 vs. 30,507).

The Intel Xeon w5-3525 wins only three tests, but they are telling. Its biggest victory is extended instructions (49,242 vs. 42,867, a 14.9% margin), followed by floating-point math (121,050 vs. 105,833, 14.4% ahead) and data compression (607,435 vs. 577,210, 5.2% ahead). These are workloads that scale with memory bandwidth and SIMD throughput, areas where the Xeon’s eight-channel memory bus and 112 PCIe Gen 5 lanes provide structural advantages. For users running compression pipelines or heavy floating-point simulations, the Intel part is the better tool despite losing the overall benchmark war.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Xeon w5-3525 is built on a 10 nm process at Intel’s foundry, using the Sapphire Rapids codename and a 4x 477 mm² die configuration. It packs 16 cores and 32 threads, with a base clock of 3.20 GHz and a boost of 4.80 GHz. Its cache hierarchy is per-core: 80 KB of L1 and 2 MB of L2 per core, alongside a 45 MB shared L3 pool. Memory support is DDR5 across an eight-channel bus, yielding 307.2 GB/s of bandwidth. The Xeon uses the Intel Socket 4677 platform and includes ECC memory support.

The AMD EPYC 4465P is a Zen 5 design codenamed Grado, fabricated on a 4 nm process at TSMC with a 2x 70.6 mm² die size and 16,630 million transistors. It has 12 cores and 24 threads, but runs at higher clocks — 3.40 GHz base and 5.40 GHz boost. Its L1 cache is identical per core (80 KB), but L2 drops to 1 MB per core, while L3 jumps to 64 MB shared. Critically, the EPYC uses a dual-channel memory bus with 89.6 GB/s bandwidth — less than a third of the Xeon’s — but compensates with higher clock speeds and a newer process node. It also features integrated Radeon Graphics, which the Xeon lacks, and fits the AMD Socket AM5. Both support ECC and DDR5, but the Xeon’s massive bandwidth advantage is a structural differentiator that shows up in specific workloads.

Head-to-Head Benchmarks

The Cinebench results are the most striking because they are perfectly uniform: every single test, from R15 multicore (3,927 vs. 4,326) to R23 singlecore (5,500 vs. 6,059), shows the AMD part winning by exactly 9.2%. This consistency indicates the EPYC’s clock speed advantage (5.40 vs. 4.80 GHz boost) and architectural efficiency overcome its 25% core deficit in these render workloads. The Intel Xeon’s 16 cores cannot outrun the 12 faster Zen 5 cores in Cinebench’s scaling model.

PassMark tells a more complex story. The single-thread test is a decisive AMD win: 4,575 vs. 3,330, a 27.2% margin — the largest gap in the entire comparison. This reflects the EPYC’s higher boost clock and the IPC gains from Zen 5 over Sapphire Rapids. Find prime numbers is even more lopsided in percentage terms (35.5% AMD), suggesting the integer execution pipeline on the EPYC is substantially stronger. Physics also favors AMD by 17.7%, and integer math by 11%.

The Intel part’s wins reveal its strengths. Extended instructions (14.9% ahead) and floating-point math (14.4% ahead) both benefit from the Xeon’s wider memory interface and potentially larger vector units. Data compression (5.2% ahead) is a classic bandwidth-bound workload. The Xeon’s 307.2 GB/s versus the EPYC’s 89.6 GB/s is the likely explanation — the eight-channel bus feeds data to the cores faster than the dual-channel EPYC can manage, even with fewer cores doing the work. The data encryption test, however, goes to AMD (5.2% ahead), indicating that cryptographic throughput is more clock-bound than bandwidth-bound.

The Verdict

The data points to two distinct user profiles. For general compute, rendering, integer math, and single-threaded tasks, the AMD EPYC 4465P is the superior processor. It wins 14 of 17 benchmarks, including every Cinebench test, and posts a 1.1% higher average score (66,925 vs. 67,673) with a 93rd percentile ranking versus the Xeon’s 94th. The 35.5% lead in prime number finding and 27.2% lead in single-thread performance make it the obvious choice for software that relies on per-core speed.

The Intel Xeon w5-3525 is the pick for bandwidth-intensive and SIMD-heavy workloads. Its three wins — extended instructions, floating-point math, and data compression — are all in categories where the eight-channel memory bus (307.2 GB/s) provides a decisive advantage. Users running compression pipelines, numerical simulations, or instruction-heavy code should favor the Xeon despite its lower clock speeds and higher core count. The Xeon also offers more PCIe lanes (112 vs. 24), which matters for systems with multiple accelerators or storage devices. The EPYC’s integrated Radeon Graphics is a convenience feature, but not a performance factor in these benchmarks.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon w5-3525 has a marginally higher average score of 67,673, while the AMD EPYC 4465P sits at 66,925 — a 1.1% gap in Intel’s favor.

Q: How large is the single-thread performance gap?

A: The AMD EPYC 4465P leads by 27.2% in PassMark single-thread (4,575 vs. 3,330), and by 9.2% in every Cinebench single-core test.

Q: Does the Intel Xeon win any workload categories?

A: Yes, it wins three: data compression (607,435 vs. 577,210), extended instructions (49,242 vs. 42,867), and floating-point math (121,050 vs. 105,833).

Q: What explains the Intel wins in compression and floating-point?

A: The Xeon’s eight-channel memory bus provides 307.2 GB/s of bandwidth, versus the EPYC’s dual-channel 89.6 GB/s, which favors bandwidth-bound workloads.

Q: Which processor has more cores and threads?

A: The Intel Xeon w5-3525 has 16 cores and 32 threads, while the AMD EPYC 4465P has 12 cores and 24 threads.

Q: What is the TDP difference between the two?

A: The Intel Xeon w5-3525 has a TDP of 290 watts, while the AMD EPYC 4465P is rated at 65 watts — a 225-watt difference.

Specification Differences

| Specification | Intel Xeon w5-3525 | AMD EPYC 4465P |

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

| Cores | 16 | 12 |

| Threads | 32 | 24 |

| Base Clock | 3.20 GHz | 3.40 GHz |

| Boost Clock | 4.80 GHz | 5.40 GHz |

| TDP | 290 W | 65 W |

| Socket | Intel Socket 4677 | AMD Socket AM5 |

| Codename | Sapphire Rapids | Grado |

| Process Node | 10 nm (Intel) | 4 nm (TSMC) |

| Die Size | 4x 477 mm² | 2x 70.6 mm² |

| Transistors | N/A | 16,630 million |

| L2 Cache | 2 MB (per core) | 1 MB (per core) |

| L3 Cache | 45 MB | 64 MB (shared) |

| Memory Bus | Eight-channel | Dual-channel |

| Memory Bandwidth | 307.2 GB/s | 89.6 GB/s |

| PCIe | Gen 5, 112 Lanes (CPU only) | Gen 5, 24 Lanes (CPU only) |

| Integrated Graphics | N/A | Radeon Graphics |

| Part Number | SRN77 | 100-000001558 |

| Launch MSRP | $1339 | $399 |