AMD EPYC 4364P vs AMD Ryzen 9 PRO 5945 Comparison

Head-to-Head Benchmarks

The head-to-head results reveal a surprisingly balanced contest between two processors from different eras. The AMD EPYC 4364P, a Zen 4 server/workstation part, claims 11 benchmark wins, while the AMD Ryzen 9 PRO 5945, a Zen 3 desktop processor, takes 6. The overall average benchmark scores tell a similar story: the EPYC 4364P sits at 45,970, while the Ryzen 9 PRO 5945 reaches 47,527, a gap of roughly 3.4% in favor of the older desktop chip.

Cinebench results are uniformly close, with the EPYC 4364P edging ahead in every single test. In Cinebench R23 multi-core, the EPYC scores 29,589 against 29,366 for the Ryzen, a 0.8% margin. Single-core R23 shows the same 0.8% delta, with 4,177 versus 4,145. The pattern repeats across R15 and R20: the EPYC wins each multi-core and single-core run by margins between 0.7% and 0.8%. These are narrow victories, but they are consistent across all four Cinebench generations tested.

The Passmark suite tells a more divided story. The Ryzen 9 PRO 5945 dominates in integer-heavy workloads. Its integer math score of 129,768 crushes the EPYC's 107,775, a 16.9% deficit for the newer chip. Prime number finding shows an even larger gap: 228 versus 177, a 22.4% advantage for the Ryzen. Data encryption also favors the Ryzen, scoring 26,313 versus 24,174, an 8.1% lead. Floating point math goes to the Ryzen as well, 70,291 against 66,946, a 4.8% margin.

The EPYC 4364P strikes back in other Passmark subtests. Extended instructions show a 16.9% win for the EPYC, 31,605 versus 27,031. Random string sorting also goes to the EPYC, 48,344 versus 43,447, an 11.3% advantage. Single-thread performance favors the EPYC by 3.4%, with 3,619 against 3,499. The remaining tests are closer: data compression goes to the Ryzen by 2% (416,599 versus 408,220), multithread goes to the Ryzen by 1.9% (34,549 versus 33,883), and physics goes to the EPYC by 0.7% (1,785 versus 1,772).

The percentile rankings place both chips in the top tier of all CPUs. The EPYC 4364P sits at the 89th percentile, while the Ryzen 9 PRO 5945 reaches the 90th percentile. The nearest rivals for the EPYC include the AMD EPYC 7303 with a 0% delta, the Intel Core i7-14700HX at 0%, the AMD Ryzen AI 9 HX 375 at -0.1%, and the Intel Core Ultra 5 235 at -0.2%. The Ryzen's nearest rivals are the Intel Core Ultra X9 378H at 0.1%, the Intel Core Ultra 7 265T at -0.4%, the Intel Core i7-13700KF at 0.4%, and the Intel Core i9-12900F at 0.7%.

The Verdict

The data paints a clear picture for workload-specific selection. The AMD EPYC 4364P is the pick for single-threaded responsiveness, extended instruction set performance, and random string sorting. Its 3.4% single-thread lead and 16.9% extended instructions advantage make it the stronger choice for applications that depend on per-core speed and modern instruction support. The consistent Cinebench wins, however small, also suggest a slight edge in rendering tasks that use those specific workloads.

The AMD Ryzen 9 PRO 5945, despite being built on the older Zen 3 architecture, wins decisively in raw compute throughput. The 16.9% lead in integer math and 22.4% lead in prime number finding indicate a substantial advantage for number-crunching tasks. The 8.1% encryption advantage and 4.8% floating point lead reinforce this pattern. For workloads that scale with core count and raw ALU/FPU throughput, the Ryzen's 12 cores and 24 threads overcome the EPYC's architectural advantage.

The overall average benchmark score favors the Ryzen 9 PRO 5945 by about 3.4%. The Ryzen also holds a higher percentile ranking at 90 versus 89. However, the EPYC 4364P wins more individual tests, 11 to 6, suggesting it is more versatile across mixed workloads. The choice comes down to workload profile: pick the EPYC for balanced, single-thread-sensitive work, pick the Ryzen for heavy parallel compute.

Architecture Differences

The two processors represent distinct architectural generations. The AMD EPYC 4364P uses Zen 4 architecture on the Raphael codename, built on a 5 nm process at TSMC. The AMD Ryzen 9 PRO 5945 uses Zen 3 architecture on the Vermeer codename, built on a 7 nm process, also at TSMC. The transistor counts reflect the different designs: the EPYC packs 6,570 million transistors on a 71 mm² die, while the Ryzen uses 8,300 million transistors across a dual-die layout of 2x 74 mm².

Cache hierarchies differ significantly. Both have 64 KB of L1 cache per core. The L2 cache differs: the EPYC has 1 MB per core, while the Ryzen has 512 KB per core. The L3 cache also differs: the EPYC has 32 MB shared, while the Ryzen has 64 MB. This means the Ryzen offers double the L3 capacity, which can benefit certain data-heavy workloads, while the EPYC offers double the per-core L2, which can reduce latency for individual cores.

Memory architecture is a major divergence. The EPYC 4364P supports DDR5 memory with dual-channel bus and a memory bandwidth of 83.2 GB/s. The Ryzen 9 PRO 5945 supports DDR4 with dual-channel bus and 51.2 GB/s bandwidth. The EPYC's bandwidth advantage is substantial, roughly 62% higher, which matters for memory-bound workloads. Both support ECC memory. PCIe connectivity also differs: the EPYC offers Gen 5 with 28 lanes (CPU only), while the Ryzen offers Gen 4 with 20 lanes (CPU only).

The EPYC 4364P includes integrated Radeon Graphics, while the Ryzen 9 PRO 5945 has no integrated graphics. This makes the EPYC a more self-contained option for systems without a discrete GPU, though the market segments differ: the EPYC is classified as Server/Workstation, while the Ryzen is Desktop.

Specification Differences

The core and thread counts are the most obvious difference. The AMD EPYC 4364P has 8 cores and 16 threads. The AMD Ryzen 9 PRO 5945 has 12 cores and 24 threads, a 50% increase in both. Clock speeds favor the EPYC: its base clock is 4.50 GHz against 3.00 GHz, and its boost clock is 5.40 GHz against 4.70 GHz. The EPYC runs at a higher TDP of 105 watts, while the Ryzen is rated at 65 watts.

Socket compatibility diverges completely. The EPYC uses AMD Socket AM5, while the Ryzen uses AMD Socket AM4. These are not interchangeable platforms. The EPYC's process node is 5 nm, the Ryzen's is 7 nm. The EPYC's memory support is DDR5, the Ryzen's is DDR4. The EPYC's PCIe is Gen 5 with 28 lanes, the Ryzen's is Gen 4 with 20 lanes.

The EPYC launched on 2024-05-20 with a launch MSRP of $399. The Ryzen launched on 2022-04-03 with no launch MSRP recorded. Both processors have locked multipliers, meaning they are not unlocked for overclocking. The part numbers differ: the EPYC is 100-000001477, the Ryzen is 100-000000831. The EPYC includes integrated graphics, the Ryzen does not. Both are listed as Active in production status.

FAQ

Q: Which processor has more cores?

A: The AMD Ryzen 9 PRO 5945 has 12 cores and 24 threads, while the AMD EPYC 4364P has 8 cores and 16 threads.

Q: Which processor has a higher boost clock?

A: The AMD EPYC 4364P boosts to 5.40 GHz, which is higher than the AMD Ryzen 9 PRO 5945's boost of 4.70 GHz.

Q: Which processor supports DDR5 memory?

A: The AMD EPYC 4364P supports DDR5 memory, while the AMD Ryzen 9 PRO 5945 supports DDR4 memory.

Q: Which processor won more head-to-head benchmarks?

A: The AMD EPYC 4364P won 11 benchmarks, while the AMD Ryzen 9 PRO 5945 won 6 benchmarks in the head-to-head comparison.

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 PRO 5945 has an average benchmark score of 47,527, which is higher than the AMD EPYC 4364P's average of 45,970.

Q: Does the AMD Ryzen 9 PRO 5945 have integrated graphics?

A: No, the AMD Ryzen 9 PRO 5945 has no integrated graphics, while the AMD EPYC 4364P includes Radeon Graphics.