AMD EPYC 4465P vs AMD EPYC 9115 Comparison

The AMD EPYC 9115 and AMD EPYC 4465P are both Zen 5 server processors from AMD, but they target different deployment profiles. The EPYC 9115 is a 16-core Turin part on Socket SP5 with twelve-channel DDR5 memory, while the EPYC 4465P is a 12-core Grado part on Socket AM5 with dual-channel DDR5. Benchmark results show the 4465P wins 10 of 17 head-to-head tests, while the 9115 wins 7, but the nature of those wins reveals which processor fits which workload.

FAQ

Q: Which processor wins more benchmark comparisons?

A: The AMD EPYC 4465P wins 10 of the 17 head-to-head benchmark tests, while the AMD EPYC 9115 wins 7. The 9115's wins are concentrated in memory-bandwidth-sensitive and math-heavy workloads.

Q: How do the core counts differ?

A: The EPYC 9115 has 16 cores and 32 threads, while the EPYC 4465P has 12 cores and 24 threads. Both use the Zen 5 architecture on a 4 nm TSMC process with 16,630 million transistors.

Q: Which processor has the higher single-thread performance?

A: The EPYC 4465P. In the Passmark single-thread test it scores 4575 versus 3360 for the EPYC 9115, a 26.6% advantage. It also leads in every Cinebench single-core test by 2.1%.

Q: What are the memory subsystem differences?

A: The EPYC 9115 uses twelve-channel DDR5 with 576.0 GB/s of bandwidth, while the EPYC 4465P uses dual-channel DDR5 with 89.6 GB/s. Both support ECC memory.

Q: Does either processor include integrated graphics?

A: The EPYC 4465P includes Radeon Graphics, while the EPYC 9115 has no integrated graphics.

Q: Which processor has the higher TDP?

A: The EPYC 9115 has a 125 W TDP, while the EPYC 4465P has a 65 W TDP. The 4465P also has a higher boost clock at 5.40 GHz versus 4.10 GHz.

Architecture Differences

Both processors share the same fundamental Zen 5 architecture, fabricated by TSMC on a 4 nm process, with 16,630 million transistors and a die size of 2x 70.6 mm². The cache hierarchy is identical: 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The differences begin with core counts and the platform each chip is designed for.

The EPYC 9115 belongs to the EPYC 9005 series with the codename Turin. It packs 16 cores and 32 threads, runs at a base clock of 2.60 GHz and a boost clock of 4.10 GHz, and has a TDP of 125 W. It uses AMD Socket SP5, the server platform socket. Its memory controller is twelve-channel DDR5, delivering 576.0 GB/s of bandwidth, and it exposes 128 PCIe Gen 5 lanes from the CPU. It has no integrated graphics.

The EPYC 4465P belongs to the EPYC 4005 series with the codename Grado. It has 12 cores and 24 threads, runs at a base clock of 3.40 GHz and a boost clock of 5.40 GHz, and has a TDP of 65 W. It uses AMD Socket AM5, the same socket family as mainstream desktop processors. Its memory controller is dual-channel DDR5, delivering 89.6 GB/s of bandwidth, and it exposes 24 PCIe Gen 5 lanes. It includes Radeon Graphics as an integrated GPU.

The architectural split is clear: the 9115 is a scale-out server part with massive memory bandwidth and PCIe lane count, while the 4465P is a lower-power, higher-clock part with a more modest platform footprint. Both are active production parts, and both support ECC memory. The 9115 was released on 2024-10-09, while the 4465P was released on 2025-05-12.

Head-to-Head Benchmarks

The benchmark data splits into two clear groups. The EPYC 4465P dominates the Cinebench suite and single-threaded workloads, while the EPYC 9115 wins the math, encryption, and compression workloads.

In Cinebench, the 4465P wins every test by a consistent 2.1% margin. Cinebench R15 multicore: 4326 versus 4233. R15 singlecore: 610 versus 597. R20 multicore: 18025 versus 17641. R20 singlecore: 2544 versus 2490. R23 multicore: 42918 versus 42003. R23 singlecore: 6059 versus 5929. The consistency of the 2.1% delta across all six Cinebench tests suggests a uniform clock advantage rather than a workload-specific effect.

The single-thread gap is even more pronounced in Passmark. The 4465P scores 4575 in Passmark single-thread versus 3360 for the 9115, a 26.6% advantage. This is the largest delta in the entire comparison and reflects the 4465P's 5.40 GHz boost clock versus 4.10 GHz for the 9115.

The 4465P also wins Passmark find prime numbers with 338 versus 289, a 14.5% margin, and Passmark multithread with 49871 versus 48936, a 1.9% margin.

The EPYC 9115's wins are equally decisive in its favored areas. Passmark physics: 4188 versus 3647, a 14.8% advantage. Passmark floating point math: 113853 versus 105833, a 7.6% advantage. Passmark extended instructions: 45477 versus 42867, a 6.1% advantage. Passmark integer math: 181807 versus 174551, a 4.2% advantage. Passmark data encryption: 33489 versus 32184, a 4.1% advantage. Passmark data compression: 600099 versus 577210, a 4% advantage. Passmark random string sorting: 70151 versus 67597, a 3.8% advantage.

The pattern is consistent: the 9115's twelve-channel memory subsystem and higher core count give it an edge in bandwidth-bound and parallel math workloads, while the 4465P's higher clocks win single-thread and lightly threaded tests.

In terms of overall average benchmark score, the 9115 sits at 69288 with a 94th percentile ranking among all CPUs, while the 4465P sits at 66925 with a 93rd percentile ranking. The 9115's nearest rivals include the Intel Core i7-14700K at 69355 (-0.1%), the AMD Ryzen 9 7950X at 69515 (-0.3%), the AMD Ryzen 9 7940HX at 69875 (-0.8%), and the AMD Ryzen 7 9700F at 69996 (-1%). The 4465P's nearest rivals include the Intel Core Ultra 5 250K Plus at 66855 (0.1%), the Intel Xeon 6515P at 67006 (-0.1%), the Intel Core Ultra 9 275HX at 67469 (-0.8%), and the Intel Xeon w5-3525 at 67673 (-1.1%).

Specification Differences

The two processors differ in the following fields:

• Cores: 16 (9115) versus 12 (4465P)
• Threads: 32 versus 24
• Base clock: 2.60 GHz versus 3.40 GHz
• Boost clock: 4.10 GHz versus 5.40 GHz
• TDP: 125 W versus 65 W
• Socket: AMD Socket SP5 versus AMD Socket AM5
• Codename: Turin versus Grado
• Memory bus: Twelve-channel versus Dual-channel
• Memory bandwidth: 576.0 GB/s versus 89.6 GB/s
• PCIe: Gen 5, 128 Lanes versus Gen 5, 24 Lanes
• Integrated graphics: N/A versus Radeon Graphics
• Release date: 2024-10-09 versus 2025-05-12
• Launch MSRP: $726 versus $399
• Part number: 100-000001552 versus 100-000001558

Identical fields include the Zen 5 architecture, 4 nm TSMC process, 16,630 million transistors, 2x 70.6 mm² die size, 80 KB L1 per core, 1 MB L2 per core, 64 MB shared L3, DDR5 memory support, ECC support, server/workstation market segment, active production status, and locked multiplier.

The Verdict

The data supports a clear split. The EPYC 4465P is the better choice for single-threaded performance, lower power draw, and workloads that do not require massive memory bandwidth. It wins 10 of 17 head-to-head tests, including all six Cinebench tests, Passmark single-thread by 26.6%, Passmark find prime numbers by 14.5%, and Passmark multithread by 1.9%. Its 65 W TDP and integrated Radeon Graphics make it a more flexible platform option.

The EPYC 9115 is the better choice for memory-bandwidth-intensive and parallel math workloads. It wins Passmark physics by 14.8%, floating point math by 7.6%, extended instructions by 6.1%, integer math by 4.2%, data encryption by 4.1%, data compression by 4%, and random string sorting by 3.8%. Its twelve-channel memory controller with 576.0 GB/s of bandwidth and 128 PCIe Gen 5 lanes make it the more capable server platform.

The 9115 also has a higher average benchmark score (69288 versus 66925) and a higher percentile ranking (94 versus 93), though the 4465P's nearest rivals are generally closer in average score.

Where Each One Wins

AMD EPYC 9115 wins in:

• Passmark physics (14.8% ahead)
• Passmark floating point math (7.6% ahead)
• Passmark extended instructions (6.1% ahead)
• Passmark integer math (4.2% ahead)
• Passmark data encryption (4.1% ahead)
• Passmark data compression (4% ahead)
• Passmark random string sorting (3.8% ahead)

These are workloads that benefit from the 9115's twelve-channel memory bandwidth (576.0 GB/s) and its 16-core, 32-thread configuration. The 128 PCIe Gen 5 lanes also make it the stronger choice for systems with many expansion devices.

AMD EPYC 4465P wins in:

• All six Cinebench tests (2.1% ahead in each)
• Passmark single-thread (26.6% ahead)
• Passmark find prime numbers (14.5% ahead)
• Passmark multithread (1.9% ahead)

These are workloads that respond to the 4465P's higher boost clock of 5.40 GHz. Its 65 W TDP and integrated Radeon Graphics make it the more power-efficient and self-contained option, while its dual-channel memory and 24 PCIe Gen 5 lanes are sufficient for many single-socket workstation deployments.