AMD EPYC 4564P vs AMD EPYC 8324P Comparison

The AMD EPYC 8324P and AMD EPYC 4564P represent two very different approaches to the same server/workstation market. The 8324P, from the EPYC 8004 series, packs 32 Zen 4c cores into a Socket SP6 package with 128 MB of L3 cache and six-channel memory. The 4564P, from the EPYC 4004 series, uses 16 full Zen 4 cores on Socket AM5 with a 5.70 GHz boost clock and integrated Radeon Graphics. Across 17 recorded head-to-head benchmarks, the 4564P wins 12 and the 8324P wins 5, yet the 8324P's victories are concentrated in workloads that reward memory bandwidth and wide parallel execution.

Head-to-Head Benchmarks

The largest single gap in the head-to-head set is Passmark single-thread: the 4564P scores 4292 against the 8324P's 2367, a 44.9% advantage. That gap reflects the clock difference, 4.50 GHz base and 5.70 GHz boost versus 2.65 GHz and 3.00 GHz. The same pattern appears across every Cinebench test. In R15 multi-core the 4564P posts 5603 versus 4894, in R20 multi-core 23348 versus 20393, and in R23 multi-core 55592 versus 48557, each a 12.7% lead. Single-core Cinebench results are similar: R15 791 versus 690 (12.8% ahead), R20 3296 versus 2879 (12.7%), and R23 7848 versus 6855 (12.7%).

Passmark multithread also goes to the 4564P: 64357 versus 57127, an 11.2% margin. Extended instructions (63136 versus 60304, 4.5%), find prime numbers (365 versus 347, 4.9%), and floating point math (141017 versus 139022, 1.4%) all favor the 4564P as well.

The 8324P's wins are fewer but often larger. The biggest is Passmark physics: 4637 versus 3392, a 36.7% margin. Data encryption follows at 63195 versus 50708, a 24.6% lead. Data compression shows 980907 versus 858105, a 14.3% advantage. Random string sorting (113610 versus 103202, 10.1%) and integer math (248447 versus 228761, 8.6%) round out the 8324P's wins.

Interpreting the pattern: the 4564P's higher clocks dominate latency-sensitive and lightly threaded tests, while the 8324P's 32 cores, 128 MB L3, and 230.4 GB/s memory bandwidth give it an edge in throughput-heavy workloads like encryption, compression, and physics.

FAQ

Q: Which processor has more cores and threads?

A: The EPYC 8324P has 32 cores and 64 threads, while the EPYC 4564P has 16 cores and 32 threads.

Q: Which has the higher clock speed?

A: The EPYC 4564P has a base clock of 4.50 GHz and a boost clock of 5.70 GHz, versus 2.65 GHz base and 3.00 GHz boost for the 8324P.

Q: Which offers more L3 cache and memory bandwidth?

A: The 8324P has 128 MB shared L3 and 230.4 GB/s six-channel memory bandwidth; the 4564P has 64 MB shared L3 and 83.2 GB/s dual-channel bandwidth.

Q: Which wins in single-threaded performance?

A: The 4564P, with a Passmark single-thread score of 4292 versus 2367 for the 8324P, a 44.9% lead.

Q: Which has integrated graphics?

A: The 4564P includes Radeon Graphics; the 8324P has no integrated graphics.

Q: Which has more PCIe lanes?

A: The 8324P provides 96 Gen 5 lanes (CPU only), while the 4564P provides 28 Gen 5 lanes.

Architecture Differences

Both processors are built on TSMC's 5 nm process and support DDR5 with ECC, but the underlying designs diverge. The 8324P uses Zen 4c (Siena) with 35,500 million transistors spread across 4x 73 mm² dies. The 4564P uses Zen 4 (Raphael) with 13,140 million transistors across 2x 71 mm² dies. The 8324P's Zen 4c cores are denser, allowing 32 cores and 64 threads in a 180 W TDP. The 4564P's full Zen 4 cores run at much higher clocks, 4.50 GHz base and 5.70 GHz boost, within a 170 W TDP.

Cache and memory hierarchy differ sharply. The 8324P has 128 MB shared L3, six-channel DDR5 with 230.4 GB/s bandwidth, and 96 Gen 5 PCIe lanes. The 4564P has 64 MB shared L3, dual-channel DDR5 with 83.2 GB/s bandwidth, and 28 Gen 5 PCIe lanes. Both have 64 KB L1 and 1 MB L2 per core.

Platform features also differ: the 8324P uses AMD Socket SP6, the 4564P uses AMD Socket AM5. The 4564P integrates Radeon Graphics; the 8324P has none. The 8324P launched on 2023-09-17, the 4564P on 2024-05-20. Both are active production parts with locked multipliers.

The Verdict

The recorded data points to a clear split. The 4564P wins 12 of 17 head-to-head tests, including every Cinebench test and Passmark multithread, and its single-thread lead is the largest margin in the entire comparison. The 8324P wins 5 tests, but those wins are decisive in physics (36.7%), encryption (24.6%), compression (14.3%), sorting (10.1%), and integer math (8.6%).

Looking at the database's nearest-rival rankings, the 8324P's average benchmark score of 103329 places it in the 97th percentile, 1.1% above the EPYC 7513 and 2.3% above the Threadripper PRO 9955WX, while trailing the Xeon 6521P by 2.4% and the Xeon w7-3555 by 2.7%. The 4564P's 95183 average sits in the 96th percentile, 0.5% below the EPYC 9175F, 0.6% below the EPYC 4565P, and 0.9% below the Ryzen 9 PRO 9945, while 1.5% above the Xeon 6520P.

For buyers, the choice depends on workload. The 4564P is the better general-purpose part in these benchmarks: it wins more tests, has higher clocks, includes integrated graphics, and carries a lower TDP of 170 W versus 180 W. The 8324P is the better choice for memory-bandwidth-hungry and wide-parallel workloads, with 32 cores, 128 MB L3, 230.4 GB/s memory bandwidth, and 96 PCIe lanes. Its launch MSRP is $1895, while the 4564P's launch MSRP is $699.

Specification Differences

| Field | AMD EPYC 8324P | AMD EPYC 4564P |

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

| Cores | 32 | 16 |

| Threads | 64 | 32 |

| Base clock | 2.65 GHz | 4.50 GHz |

| Boost clock | 3.00 GHz | 5.70 GHz |

| TDP | 180 W | 170 W |

| Socket | AMD Socket SP6 | AMD Socket AM5 |

| Architecture | Zen 4c | Zen 4 |

| Codename | Siena | Raphael |

| Transistors | 35,500 million | 13,140 million |

| Die size | 4x 73 mm² | 2x 71 mm² |

| L3 cache | 128 MB (shared) | 64 MB (shared) |

| Memory bus | Six-channel | Dual-channel |

| Memory bandwidth | 230.4 GB/s | 83.2 GB/s |

| PCIe | Gen 5, 96 Lanes (CPU only) | Gen 5, 28 Lanes (CPU only) |

| Integrated graphics | None | Radeon Graphics |

| Release date | 2023-09-17 | 2024-05-20 |

| Launch MSRP | $1895 | $699 |

| Part number | 100-000001133 | 100-000001476 |

| Percentile vs all CPUs | 97 | 96 |

| Average benchmark score | 103329 | 95183 |

Fields not listed are identical: 64 KB L1 per core, 1 MB L2 per core, 5 nm process, TSMC foundry, DDR5 memory support, ECC support, Server/Workstation market segment, Active production status, and locked multiplier.

Where Each One Wins

The 8324P wins in data compression (14.3% ahead), data encryption (24.6%), integer math (8.6%), physics (36.7%), and random string sorting (10.1%). These are throughput-oriented workloads that benefit from its 32 cores, 128 MB L3, and 230.4 GB/s six-channel memory bandwidth. It also offers 96 Gen 5 PCIe lanes, making it the stronger platform for storage and accelerator expansion.

The 4564P wins in all six Cinebench tests (12.7% to 12.8% ahead), Passmark multithread (11.2%), extended instructions (4.5%), find prime numbers (4.9%), floating point math (1.4%), and single-thread (44.9%). Its 4.50 GHz base and 5.70 GHz boost clocks drive these results. It also includes Radeon Graphics, has a lower TDP of 170 W, and was released later on 2024-05-20.