AMD EPYC 7313 vs Intel Core i9-13900 Comparison

The Verdict

The benchmark database positions these two processors for entirely different environments. The Intel Core i9-13900 wins 14 of the 17 recorded head-to-head tests, while the AMD EPYC 7313 takes 3. The i9-13900 is the clear choice for single-threaded responsiveness, floating-point math, and general desktop compute. The EPYC 7313, however, dominates in prime-number finding and physics simulations, with a notable win in extended instruction throughput.

The i9-13900's overall average benchmark score is 60676, compared to the EPYC 7313's 57399, a gap of about 5.7%. Both sit at the 92nd percentile among all CPUs in the database, but the Intel part achieves that with a desktop-class TDP of 65 watts, while the AMD server chip draws 155 watts. The EPYC's 16 cores and 32 threads match the i9's 24 cores (which also produce 32 threads via hybrid architecture), yet the Intel part still pulls ahead in most multi-threaded tests.

For server and workstation deployments where memory bandwidth, ECC support, and PCIe lane count matter more than peak clock speed, the EPYC 7313 offers eight-channel DDR4 with 204.8 GB/s bandwidth and 128 PCIe Gen 4 lanes. The i9-13900 counters with dual-channel DDR4 or DDR5, no recorded memory bandwidth figure, and 16 PCIe Gen 5 lanes. The verdict from the data: the i9-13900 wins on raw performance across most workloads, but the EPYC 7313 wins on platform scalability and specific scientific workloads.

Architecture Differences

The EPYC 7313 uses AMD's Zen 3 architecture on a 7 nm TSMC process, with a chiplet design comprising four dies at 81 mm² each. The i9-13900 uses Intel's Raptor Lake architecture on a 10 nm Intel process, with a monolithic die of 257 mm². The EPYC packs 16,600 million transistors; the database records no transistor count for the Intel part.

Cache hierarchies differ sharply. The EPYC provides 64 KB of L1 and 512 KB of L2 per core, plus a massive 128 MB shared L3 cache. The i9-13900 offers 80 KB of L1 and 2 MB of L2 per core, but only 36 MB of shared L3. The EPYC's larger L3 is a direct contributor to its prime-number and physics wins, as those workloads benefit from large resident datasets.

The i9-13900 integrates UHD Graphics 770, while the EPYC has no integrated graphics. The EPYC uses a server socket (AMD Socket SP3) and targets the Server/Workstation market segment; the i9 uses Intel Socket 1700 and targets desktop. The EPYC supports DDR4 memory only, across eight channels, with ECC enabled. The i9 supports both DDR4 and DDR5 across two channels, also with ECC. The EPYC's PCIe implementation is Gen 4 with 128 lanes from the CPU; the i9 uses Gen 5 with 16 lanes. The EPYC's base clock is 3.00 GHz with a boost of 3.70 GHz, while the i9's base is 2.00 GHz (likely the efficiency-core base) with a boost of 5.60 GHz.

FAQ

Q: Which processor has more cores?

A: The Intel Core i9-13900 has 24 cores, while the AMD EPYC 7313 has 16 cores. Both processors expose 32 threads, so thread count is identical.

Q: Does the EPYC 7313 support more memory bandwidth?

A: Yes. The EPYC 7313 uses an eight-channel memory bus with recorded bandwidth of 204.8 GB/s. The i9-13900 uses a dual-channel bus, and the database does not list a bandwidth figure for it.

Q: Which CPU wins in single-threaded performance?

A: The i9-13900 wins decisively. In Cinebench R23 single-core, it scores 5355 versus the EPYC's 4637, a 13.4% advantage. In PassMark single-thread, the i9 scores 4309 versus 2402, a 44.3% lead.

Q: Are both processors still in production?

A: Yes. The database lists both the AMD EPYC 7313 and the Intel Core i9-13900 as actively produced.

Q: Which processor has a smaller manufacturing process?

A: The EPYC 7313 is built on a 7 nm process by TSMC. The i9-13900 uses a 10 nm process from Intel. Smaller process node typically allows more transistors per area, and the EPYC's transistor count confirms this.

Q: What is the release timeline?

A: The EPYC 7313 was released on 2021-03-14. The i9-13900 was released on 2023-01-03. The EPYC is a Zen 3 Milan part, while the i9 is Raptor Lake-S.

Specification Differences

| Specification | AMD EPYC 7313 | Intel Core i9-13900 |

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

| Cores | 16 | 24 |

| Base Clock | 3.00 GHz | 2.00 GHz |

| Boost Clock | 3.70 GHz | 5.60 GHz |

| TDP | 155 W | 65 W |

| Socket | AMD Socket SP3 | Intel Socket 1700 |

| Architecture | Zen 3 | Raptor Lake |

| Process Node | 7 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 4x 81 mm² | 257 mm² |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L2 Cache | 512 KB (per core) | 2 MB (per core) |

| L3 Cache | 128 MB (shared) | 36 MB (shared) |

| Memory Support | DDR4 | DDR4, DDR5 |

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

| Memory Bandwidth | 204.8 GB/s | Not recorded |

| ECC Memory | Yes | Yes |

| PCIe | Gen 4, 128 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | None | UHD Graphics 770 |

| Market Segment | Server/Workstation | Desktop |

| Release Date | 2021-03-14 | 2023-01-03 |

| Launch MSRP | $1083 | $549 |

Head-to-Head Benchmarks

The Cinebench suite shows a consistent 13.4% win for the i9-13900 across all six tests. In R15 multicore, the i9 scores 3823 against the EPYC's 3310. In R20 multicore, the i9 scores 15931 versus 13795. In R23 multicore, the i9 scores 37931 versus 32847. Single-core results mirror this: R15 single-core is 539 versus 467, R20 single-core is 2249 versus 1947, and R23 single-core is 5355 versus 4637. The margin is identical at 13.4% in every Cinebench test, which suggests a fixed architectural advantage for Intel in this workload family.

In PassMark tests, the i9 wins nine of eleven, but with varying margins. The largest Intel win is PassMark single-thread, where the i9 scores 4309 versus 2402, a 44.3% advantage. Floating-point math also heavily favors Intel: 120492 versus 78748, a 34.6% lead. Integer math follows at 176107 versus 143648, an 18.4% gap. Multithread scores 45680 versus 38644, a 15.4% lead. Data compression shows 577285 versus 525507, a 9% gap. Data encryption shows 35242 versus 31881, a 9.5% gap. Random string sorting shows 64396 versus 57910, a 10.1% gap.

The EPYC's wins are narrower but specific. Extended instructions: 33430 versus 32760, a 2% lead. Physics: 3899 versus 2484, a 57% lead. Find prime numbers: 310 versus 186, a 66.7% lead. The prime-number result is the largest relative win for either side. The physics result is the second-largest relative win, and both are substantial enough to indicate a pattern: the EPYC's large L3 cache and server-class memory subsystem excel at workloads with high data reuse.

Where Each One Wins

The i9-13900 wins on single-threaded performance by a wide margin. PassMark single-thread shows a 44.3% lead, and Cinebench R23 single-core shows a 13.4% lead. This makes it the better choice for applications that rely on high clock speeds, such as interactive desktop use, lightly threaded software, and tasks where a 5.60 GHz boost clock matters. The i9 also dominates floating-point and integer math, with leads of 34.6% and 18.4% respectively, which positions it well for general-purpose computing, media encoding, and everyday productivity. Its 65 W TDP is less than half the EPYC's 155 W, which means lower cooling requirements and potentially quieter operation in a desktop chassis.

The EPYC 7313 wins where its architecture shines. The prime-number test shows a 66.7% lead, and the physics test shows a 57% lead. Extended instructions also go to the EPYC, though by just 2%. These wins suggest that the EPYC's 128 MB L3 cache and eight-channel memory bandwidth provide a real advantage for scientific computing, simulation, and workloads with large working sets. The EPYC's server platform also offers 128 PCIe Gen 4 lanes, which is critical for multi-GPU systems, NVMe storage arrays, and high-speed networking. Its ECC memory support, combined with the server socket, makes it the appropriate choice for data center deployments where reliability and I/O expandability outweigh raw clock speed.

The data also shows that the i9's multi-threaded wins are not universal. While it leads in PassMark multithread by 15.4%, the EPYC's physics score is 57% higher, which indicates that threaded workloads with irregular memory access patterns may favor the EPYC. The i9 wins the overall benchmark count 14 to 3, but the EPYC's wins are in categories that matter for specific professional workflows. Users who prioritize peak performance across a broad range of tasks should choose the i9-13900. Users who run prime-number-heavy or physics-simulation software, or who need a server platform with massive memory bandwidth and PCIe capacity, should choose the EPYC 7313.