AMD EPYC 8324P vs Intel Xeon 6520P Comparison

The AMD EPYC 8324P and Intel Xeon 6520P are two very different server processors that target overlapping workloads with opposing design philosophies. The data in the database shows a clear split: Intel wins the majority of the benchmark tests, but AMD secures decisive victories in several specialized tasks. This analysis breaks down the recorded measurements to show where each chip excels and which workloads favor one architecture over the other.

Head-to-Head Benchmarks

The Intel Xeon 6520P dominates the Cinebench suite, which is heavily weighted toward sustained multi-threaded rendering and single-thread responsiveness. Across all six Cinebench tests, the Intel part wins by a consistent margin of 9.2 to 9.3 percent. In Cinebench R23 multi-core, the Xeon scores 53,495 against the EPYC's 48,557, a 9.2 percent advantage. Single-core results follow the same pattern: 7,552 versus 6,855 in R23 single-core, again a 9.2 percent gap. This consistency suggests a fundamental clock speed and IPC advantage for Intel in these workloads, not a scaling anomaly.

The Passmark suite tells a more nuanced story. Intel wins the raw compute tests outright. In floating point math, the Xeon scores 162,862 versus 139,022, a 14.6 percent lead. The physics test is even more lopsided: 7,209 versus 4,637, a 35.7 percent deficit for AMD. Prime number finding shows Intel ahead by 34 percent (526 versus 347), and extended instructions favor Intel by 6.6 percent (64,557 versus 60,304). The Xeon also wins the general multi-thread score (62,936 versus 57,127, a 9.2 percent lead) and the single-thread test (3,356 versus 2,367, a 29.5 percent lead).

AMD fights back in memory-bound and security-heavy tasks. Data compression is a clear AMD win: 980,907 versus 841,518, a 16.6 percent advantage. Data encryption is even more decisive, with AMD scoring 63,195 against Intel's 45,188, a 39.8 percent lead. Integer math also goes to AMD at 248,447 versus 214,288, a 15.9 percent margin. Random string sorting, which is highly dependent on memory latency and branch prediction, favors AMD by 18.7 percent (113,610 versus 95,736). These four wins are not marginal; they represent substantial performance gaps in specific application domains.

The overall win tally is 13 for Intel and 4 for AMD, but the average benchmark scores tell a different story. The EPYC's average benchmark score is 103,329, placing it in the 97th percentile of all CPUs. The Xeon's average is 93,786, in the 96th percentile. This is because AMD's wins in compression, encryption, and integer math are weighted heavily in the aggregate score, offsetting Intel's narrower but more frequent wins in rendering and floating point.

Architecture Differences

The two processors come from opposite ends of the server design spectrum. The AMD EPYC 8324P uses the Zen 4c architecture, codenamed Siena, built on a 5 nm process by TSMC. It features 32 cores and 64 threads, with a base clock of 2.65 GHz and a boost clock of 3.00 GHz. The thermal design power is 180 watts. The chip uses a four-die design with a total die size of 4x 73 mm² and 35,500 million transistors. The cache hierarchy includes 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3 cache.

The Intel Xeon 6520P uses the Granite Rapids architecture, also on a 5 nm process but fabricated by Intel. It has 24 cores and 48 threads, fewer than the AMD part. However, its clocks are much higher: a base of 2.40 GHz and a boost of 4.00 GHz. The TDP is 210 watts. Intel uses a single monolithic die of 598 mm². The cache design differs significantly: 112 KB of L1 per core, 2 MB of L2 per core, and a larger 144 MB of shared L3 cache.

Memory subsystems also diverge. AMD supports DDR5 across a six-channel bus, delivering 230.4 GB/s of bandwidth. Intel supports DDR5 across an eight-channel bus, delivering 409.6 GB/s, nearly double the bandwidth. Both support ECC memory. PCIe connectivity is similar in generation but different in lane count: AMD provides Gen 5 with 96 lanes, Intel provides Gen 5 with 88 lanes.

These architectural choices explain the benchmark results. Intel's higher boost clock (4.00 GHz versus 3.00 GHz) and larger per-core L2 cache (2 MB versus 1 MB) drive its single-thread and floating point advantages. AMD's higher core count (32 versus 24) and massive shared L3 cache (128 MB versus 144 MB, but with a different topology) help in specific workloads like compression and encryption that benefit from many cores and high memory-level parallelism.

Where Each One Wins

The Intel Xeon 6520P is the clear choice for rendering, physics simulation, and general multi-threaded compute. Its Cinebench results show a consistent 9.2 percent lead across all versions, meaning it will be faster in 3D rendering, video encoding, and any workload that scales linearly with cores and clock speed. The floating point math win (14.6 percent) and the physics test win (35.7 percent) indicate strength in scientific computing, finite element analysis, and other FP-heavy tasks. The single-thread advantage (29.5 percent) makes it better for lightly threaded applications, database queries that run on one core, and legacy software that does not scale well.

The AMD EPYC 8324P wins where data movement and security matter more than raw arithmetic. Data compression (16.6 percent lead) benefits from the 32-core count and the large shared cache. Data encryption (39.8 percent lead) is a major win, suggesting that AMD's implementation of cryptographic instructions is more efficient or that the higher core count helps in parallel encryption workloads. Integer math (15.9 percent lead) and random string sorting (18.7 percent lead) reinforce the pattern: AMD is better at tasks that involve pattern matching, data structure manipulation, and memory access patterns that are not purely sequential.

The average benchmark score of 103,329 versus 93,786 indicates that, on aggregate, the EPYC is more powerful across the full spectrum of Passmark tests. The percentile ranking (97th versus 96th) confirms that the AMD chip sits slightly higher in the global CPU performance distribution.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 8324P has 32 cores and 64 threads. The Intel Xeon 6520P has 24 cores and 48 threads.

Q: Why does the Intel Xeon win most benchmarks despite having fewer cores?

A: The Xeon has a much higher boost clock (4.00 GHz versus 3.00 GHz) and a larger L2 cache per core (2 MB versus 1 MB). These factors drive its single-thread and lightly threaded performance advantages.

Q: What is the biggest performance gap between the two chips?

A: The largest delta is in Passmark data encryption, where the AMD EPYC leads by 39.8 percent. The second largest is in Passmark physics, where the Intel Xeon leads by 35.7 percent.

Q: Which processor has better memory bandwidth?

A: The Intel Xeon 6520P has an eight-channel DDR5 bus delivering 409.6 GB/s. The AMD EPYC has a six-channel bus delivering 230.4 GB/s.

Q: How do the average benchmark scores compare?

A: The AMD EPYC 8324P has an average benchmark score of 103,329, placing it in the 97th percentile. The Intel Xeon 6520P has an average score of 93,786, placing it in the 96th percentile.

Q: Which chip is more power efficient?

A: The AMD EPYC has a TDP of 180 watts, while the Intel Xeon has a TDP of 210 watts. The AMD part also runs at lower clock speeds, so it likely consumes less power under load, though the database does not record direct power measurements.

The Verdict

The data points to a clear split. The Intel Xeon 6520P is the better choice for anyone running rendering workloads, physics simulations, floating point heavy scientific code, or single-threaded applications. Its 9.2 percent lead in Cinebench and 35.7 percent lead in physics are decisive. The higher boost clock of 4.00 GHz and the larger L2 cache are the primary drivers.

The AMD EPYC 8324P is the better choice for security-focused workloads, data compression, and integer-heavy processing. The 39.8 percent lead in encryption is massive, and the 16.6 percent lead in compression and 15.9 percent lead in integer math make it the obvious pick for storage servers, database encryption, and data processing pipelines. Its higher core count and 128 MB of shared L3 cache serve these workloads well.

For a general-purpose server that must handle a mix of tasks, the average benchmark scores favor AMD (103,329 versus 93,786), but the margin is modest. The Intel chip wins more individual tests, so the final choice depends on which workloads are most frequent. The Xeon is a better all-rounder for compute-heavy tasks; the EPYC is a specialist for data-centric and security-centric jobs. The Xeon's higher TDP (210 watts versus 180 watts) is a minor consideration, but the performance differences are large enough to override power concerns in most cases.

Specification Differences

| Specification | AMD EPYC 8324P | Intel Xeon 6520P |

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

| Cores | 32 | 24 |

| Threads | 64 | 48 |

| Base Clock | 2.65 GHz | 2.40 GHz |

| Boost Clock | 3.00 GHz | 4.00 GHz |

| TDP | 180 W | 210 W |

| Process Node | 5 nm (TSMC) | 5 nm (Intel) |

| Die Size | 4x 73 mm² | 598 mm² |

| L1 Cache | 64 KB per core | 112 KB per core |

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

| L3 Cache | 128 MB shared | 144 MB shared |

| Memory Bus | Six-channel | Eight-channel |

| Memory Bandwidth | 230.4 GB/s | 409.6 GB/s |

| PCIe | Gen 5, 96 lanes | Gen 5, 88 lanes |

| Socket | AMD Socket SP6 | Intel Socket 4710 |

| Launch MSRP | $1895 | $1295 |