AMD EPYC 4464P vs AMD Ryzen Threadripper PRO 5955WX Comparison

The Verdict

The AMD Ryzen Threadripper PRO 5955WX is the clear overall winner in this matchup, taking 13 of the 17 benchmark comparisons. Its 16 cores and 32 threads provide a substantial throughput advantage over the 12-core, 24-thread AMD EPYC 4464P. The data shows the Threadripper PRO 5955WX leads in every Cinebench test, with a consistent 4% margin across R15, R20, and R23, both single and multi-core. In more specialized workloads, the gap widens dramatically: data compression shows a 20.3% lead, extended instructions a 19.3% lead, and data encryption an 18.7% lead.

However, the EPYC 4464P is not without its own territory. It wins four tests, and one win is emphatic: single-thread performance, where it scores 4146 against 3324, a 19.8% advantage. It also wins prime number finding by 27.7%, and random string sorting by a slim 0.5%. For users whose workloads are dominated by single-threaded tasks or specific algorithmic computations, the EPYC 4464P is the better choice. Its 5.40 GHz boost clock, the highest of the two, directly explains these wins.

The verdict for buyers is clear. If the workload is multi-threaded rendering, data compression, encryption, or floating-point math, the Threadripper PRO 5955WX is the superior processor. If the workload leans on single-thread speed, or if power efficiency is critical, the EPYC 4464P, with its 65 W TDP versus 280 W, offers a compelling alternative. The EPYC also has the advantage of a newer platform, with DDR5 memory support and PCIe Gen 5, but the benchmark data shows that the older Zen 3 architecture in the Threadripper still holds its own in most multi-threaded tasks.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Threadripper PRO 5955WX has 16 cores and 32 threads, while the AMD EPYC 4464P has 12 cores and 24 threads.

Q: How significant is the single-thread performance difference?

A: The EPYC 4464P leads by 19.8% in the PassMark single-thread test, scoring 4146 versus 3324. This is the largest single-test margin in the comparison.

Q: Which processor has a higher boost clock?

A: The AMD EPYC 4464P has a boost clock of 5.40 GHz, which is higher than the 4.50 GHz of the Threadripper PRO 5955WX.

Q: What is the memory bandwidth difference?

A: The Threadripper PRO 5955WX supports eight-channel DDR4 memory with 204.8 GB/s bandwidth. The EPYC 4464P supports dual-channel DDR5 with 83.2 GB/s bandwidth.

Q: Which processor has integrated graphics?

A: Only the AMD EPYC 4464P has integrated graphics, listed as Radeon Graphics. The Threadripper PRO 5955WX has no integrated graphics.

Q: How does the Threadripper PRO 5955WX perform in data compression?

A: It scores 690994 in PassMark data compression, which is 20.3% ahead of the EPYC 4464P's 574304.

Architecture Differences

The two processors represent different architectural generations and design philosophies. The AMD Ryzen Threadripper PRO 5955WX is built on the Zen 3 architecture, codenamed Chagall PRO, and uses a 7 nm process from TSMC. It is part of the Ryzen Threadripper 5000 series, released in March 2022. In contrast, the AMD EPYC 4464P uses the newer Zen 4 architecture, codenamed Raphael, built on a 5 nm process, also from TSMC. This is part of the EPYC 4004 series, released in May 2024.

The transistor counts reflect the generational difference. The Threadripper PRO 5955WX has 16,600 million transistors spread across a die size of 4x 81 mm². The EPYC 4464P has 13,140 million transistors on a die size of 2x 71 mm². The newer 5 nm process allows the EPYC to achieve higher clock speeds with fewer transistors, explaining its 5.40 GHz boost clock versus the Threadripper's 4.50 GHz.

Cache architecture also differs notably. Both have 64 MB of L3 cache, but the Threadripper PRO 5955WX has 512 KB of L2 per core, while the EPYC 4464P doubles this to 1 MB per core. The L1 cache is identical at 64 KB per core. The EPYC's larger L2 cache per core contributes to its single-thread performance advantage.

The memory and I/O architecture show a major split in design priorities. The Threadripper PRO 5955WX uses DDR4 memory with an eight-channel bus, providing 204.8 GB/s of bandwidth, a figure that is more than double the EPYC's 83.2 GB/s from dual-channel DDR5. For PCIe, the Threadripper PRO 5955WX offers Gen 4 with 128 lanes (CPU only), while the EPYC 4464P offers Gen 5 with only 28 lanes (CPU only). The EPYC compensates with integrated Radeon Graphics, which the Threadripper lacks.

The power envelope tells a clear story. The Threadripper PRO 5955WX has a TDP of 280 W, reflecting its high-core-count workstation design. The EPYC 4464P has a TDP of just 65 W, making it far more power-efficient. The EPYC's design targets efficiency and density, while the Threadripper targets raw multi-threaded throughput.

Specification Differences

The recorded data shows these key differences between the AMD Ryzen Threadripper PRO 5955WX and the AMD EPYC 4464P:

| Specification | Threadripper PRO 5955WX | EPYC 4464P |

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

| Cores | 16 | 12 |

| Threads | 32 | 24 |

| Base Clock | 4.00 GHz | 3.70 GHz |

| Boost Clock | 4.50 GHz | 5.40 GHz |

| TDP | 280 W | 65 W |

| Socket | AMD Socket WRX8 | AMD Socket AM5 |

| Architecture | Zen 3 | Zen 4 |

| Process Node | 7 nm | 5 nm |

| L2 Cache | 512 KB (per core) | 1 MB (per core) |

| Memory Support | DDR4 | DDR5 |

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

| Memory Bandwidth | 204.8 GB/s | 83.2 GB/s |

| PCIe | Gen 4, 128 Lanes | Gen 5, 28 Lanes |

| Integrated Graphics | None | Radeon Graphics |

| Release Date | 2022-03-07 | 2024-05-20 |

| Launch MSRP | None | $429 |

The Threadripper PRO 5955WX has a higher base clock (4.00 GHz vs 3.70 GHz) but a lower boost clock. It has a much larger memory bandwidth figure and far more PCIe lanes. The EPYC 4464P has a higher boost clock, newer process node, larger per-core L2 cache, and integrated graphics. The EPYC 4464P is the only one with a stated launch MSRP of $429.

Head-to-Head Benchmarks

The Cinebench results are uniformly in favor of the Threadripper PRO 5955WX. In Cinebench R15 multi-core, it scores 4217 against 4053, a 4% lead. The single-core R15 test shows the same 4% margin: 595 versus 572. Moving to Cinebench R20, the multi-core result is 17571 versus 16890, again 4% ahead. The single-core R20 test shows 2480 versus 2384, still a 4% lead. Cinebench R23 repeats the pattern: multi-core scores 41837 versus 40215, and single-core scores 5906 versus 5677, both with a 4% delta.

The PassMark suite reveals where the Threadripper PRO 5955WX truly dominates. In data compression, it scores 690994 against 574304, a 20.3% advantage. Data encryption shows 42524 versus 35816, an 18.7% lead. Extended instructions tests are similar, with 46952 versus 39359, a 19.3% margin. Integer math goes to the Threadripper at 185168 versus 160410, a 15.4% lead. Floating-point math shows 104377 versus 93090, a 12.1% advantage. The multithread score is 49220 versus 47514, a 3.6% lead. Physics is nearly even, with 2913 versus 2873, a 1.4% margin.

The EPYC 4464P wins its strongest test by a wide margin. In PassMark single-thread, it scores 4146 against 3324, a 19.8% lead. The same result appears in the single-thread test recorded twice. Prime number finding goes to the EPYC at 343 versus 248, a 27.7% advantage. Random string sorting is a narrow EPYC win: 70200 versus 69879, a 0.5% lead.

The overall benchmark average tells a similar story. The Threadripper PRO 5955WX has an average benchmark score of 67868, placing it in the 94th percentile of all CPUs. The EPYC 4464P has an average of 64823, in the 93rd percentile. The Threadripper's nearest rivals include the AMD EPYC 4484PX with a delta of 0.1% and the Intel Xeon w5-3525 at 0.3%, showing it sits in a tightly contested performance band. The EPYC 4464P's nearest rivals include the Intel Core Ultra 7 265 at 0.3% and the AMD EPYC 9124 at -0.4%.

Where Each One Wins

The AMD Ryzen Threadripper PRO 5955WX wins in every multi-threaded and compute-heavy category. Its 13 benchmark wins cover all Cinebench versions, with a consistent 4% lead in both single and multi-core tests. In PassMark, it dominates data compression, data encryption, extended instructions, integer math, floating-point math, multithread, and physics. The 20.3% lead in data compression and the 18.7% lead in data encryption make it the clear choice for database workloads, file archiving, and cryptographic operations. The 19.3% lead in extended instructions benefits scientific computing and simulation tasks. The 15.4% lead in integer math and 12.1% lead in floating-point math support general computational workloads.

The AMD EPYC 4464P wins in single-thread performance with a 19.8% advantage, making it the better choice for lightly threaded applications, legacy software, or tasks that cannot utilize multiple cores effectively. Its 27.7% lead in prime number finding suggests an advantage in certain algorithmic and mathematical workloads. The narrow 0.5% win in random string sorting indicates a slight edge in sorting operations. The EPYC's 5.40 GHz boost clock and larger per-core L2 cache power these wins.

The architecture differences reinforce these splits. The Threadripper PRO 5955WX's eight-channel memory bus and 128 PCIe Gen 4 lanes make it suited for memory-hungry server and workstation tasks, particularly those involving large datasets. The EPYC 4464P's dual-channel DDR5 and 28 PCIe Gen 5 lanes, plus integrated graphics, make it a more compact and efficient platform for single-socket servers where power draw and physical space matter. The EPYC's 65 W TDP versus the Threadripper's 280 W is a decisive factor in dense deployments. The data shows a clear trade-off: raw throughput from the Threadripper PRO 5955WX versus clock speed and efficiency from the EPYC 4464P.