AMD EPYC 7502 vs Intel Core i5-9400F Comparison

The Intel Core i5-9400F is a 6-core desktop processor built on Intel's 14 nm Coffee Lake architecture, while the AMD EPYC 7502 is a 32-core server chip on TSMC's 7 nm Zen 2 (Rome) design. The benchmark data shows a complete sweep for the EPYC 7502 across all six head-to-head tests, with the AMD chip winning every single-core and multi-core workload by margins of roughly 81.7% in the EPYC's favor. However, the aggregate benchmark averages tell a more nuanced story: the i5-9400F posts an average score of 13041, placing it in the 68th percentile of all CPUs, while the EPYC 7502 averages 12709, sitting at the 67th percentile. This near-identical overall standing, despite the lopsided direct comparisons, reflects how the two processors target entirely different workload profiles.

Head-to-Head Benchmarks

The most dramatic separation occurs in multi-core rendering tests. In Cinebench R23 multi-core, the EPYC 7502 scores 43940 against the i5-9400F's 8040, a delta of -81.7% from the Intel part's perspective. That same -81.7% delta repeats across Cinebench R15 multi-core (4428 vs 810), R20 multi-core (18454 vs 3376), and R23 single-core (6203 vs 1135). The consistency of this exact delta across every cinebench test — regardless of core count or test version — indicates the performance gap is structural rather than workload-specific. The EPYC's 32 cores and 64 threads simply overwhelm the i5's 6 cores and 6 threads in every scenario where the benchmark scales with parallelism.

Single-core performance also favors the EPYC, though the margin is identical in percentage terms. In Cinebench R15 single-core, the EPYC scores 625 versus the i5's 114, a -81.8% delta for Intel. The R20 single-core test shows 2605 vs 476, and R23 shows 6203 vs 1135, both again at -81.7%. This uniformity suggests that even in lightly-threaded workloads, the EPYC's Zen 2 architecture delivers substantially higher per-core throughput than the aging Coffee Lake design. The i5-9400F does have a higher boost clock on paper — 4.10 GHz versus the EPYC's 3.35 GHz — yet the EPYC still wins single-core tests decisively, pointing to architectural efficiency gains from the 7 nm process and newer microarchitecture.

The absence of any wins for the i5-9400F in the head-to-head table (0 wins for Intel, 6 for AMD) is notable, but the aggregate benchmarks provide context. The i5-9400F's PassMark multi-thread score of 9455 and single-thread score of 2428 are not directly compared to the EPYC in the head-to-head table, but they contribute to the Intel part's slightly higher average benchmark score of 13041. The EPYC's nearest rivals include the Intel Xeon Gold 6348 (avg 12746, -0.3% delta) and the AMD Ryzen Threadripper 3990X (avg 12786, -0.6% delta), while the i5-9400F sits within 0.8% of the Intel Core i5-8500 and 1.9% ahead of the Intel Core i3-1210U. These rivalries show that the EPYC 7502 competes in the server/workstation space, while the i5-9400F anchors the mainstream desktop segment.

Architecture Differences

The two processors diverge fundamentally in their design goals. The i5-9400F uses Intel's Coffee Lake architecture on a 14 nm process node, manufactured by Intel itself. It offers 6 cores and 6 threads with no hyper-threading, a base clock of 2.90 GHz, and a boost clock of 4.10 GHz. The EPYC 7502 belongs to the EPYC 7002 series, codenamed Rome, and uses AMD's Zen 2 architecture on a 7 nm process from TSMC. It packs 32 cores and 64 threads, running at a 2.50 GHz base clock and 3.35 GHz boost clock. The EPYC's transistor count is listed at 3,800 million with a 74 mm² die size, while the i5's transistor count and die size are not provided in the data.

Cache hierarchies differ substantially. The i5-9400F has 64 KB of L1 cache per core, 256 KB of L2 per core, and 9 MB of shared L3 cache. The EPYC 7502 offers 96 KB of L1 per core, 512 KB of L2 per core, and a massive 128 MB of shared L3 cache — more than 14 times the Intel part's L3. This cache advantage directly supports the EPYC's server workload demands, where large working sets and high core counts require rapid data access. The memory subsystem also separates the two: the i5 supports dual-channel DDR4 with 42.7 GB/s bandwidth, while the EPYC runs eight-channel DDR4 at 204.8 GB/s, a 4.8x bandwidth advantage. ECC memory is supported on the EPYC but not on the i5. The EPYC also uses PCIe Gen 4, while the i5 is limited to PCIe Gen 3 with 16 lanes (CPU only).

The market positioning is explicit in the data. The i5-9400F targets the Desktop segment and is marked as End-of-life, released on 2019-01-07. The EPYC 7502 targets Server/Workstation and remains Active in production, released on 2019-08-06. The socket types differ completely: Intel Socket 1151 for the i5, AMD Socket SP3 for the EPYC. Neither processor has integrated graphics, and both have locked multipliers. The i5's part number is BX80684I59400FBXC80684I59400FCM8068403358819SRF6M, while the EPYC's is 100-000000054. The EPYC's 180 W TDP versus the i5's 65 W TDP reflects the power budget required to feed 32 cores, though the data shows the EPYC delivers its performance advantages despite this higher thermal envelope.

FAQ

Q: Which processor wins more head-to-head benchmark tests?

A: The AMD EPYC 7502 wins all 6 head-to-head benchmark tests. The Intel Core i5-9400F wins 0 of these tests. The EPYC's winning margins are consistently -81.7% (from the Intel perspective) across every Cinebench R15, R20, and R23 single-core and multi-core test.

Q: How do the two processors compare in aggregate benchmark scores?

A: The Intel Core i5-9400F has an average benchmark score of 13041 and sits in the 68th percentile of all CPUs. The AMD EPYC 7502 has an average score of 12709 and sits in the 67th percentile. The Intel part is 0.1% ahead of the Intel Core i7-10750H (avg 13024) and 0.8% behind the Intel Core i5-8500 (avg 13142), while the EPYC is 0.3% behind the Intel Xeon Gold 6348 (avg 12746) and 0.6% behind the AMD Ryzen Threadripper 3990X (avg 12786).

Q: What are the core and thread counts for each processor?

A: The Intel Core i5-9400F has 6 cores and 6 threads. The AMD EPYC 7502 has 32 cores and 64 threads, a 5.3x core advantage and a 10.7x thread advantage over the Intel part.

Q: Which processor supports ECC memory?

A: The AMD EPYC 7502 supports ECC memory. The Intel Core i5-9400F does not support ECC memory. The EPYC also uses an eight-channel memory bus with 204.8 GB/s bandwidth, while the i5 uses dual-channel memory with 42.7 GB/s bandwidth.

Q: What are the production statuses of the two chips?

A: The Intel Core i5-9400F is marked as End-of-life, while the AMD EPYC 7502 is marked as Active. The i5 was released on 2019-01-07, and the EPYC was released on 2019-08-06.

Q: How do the cache sizes differ between the two?

A: The AMD EPYC 7502 has 96 KB of L1 cache per core, 512 KB of L2 per core, and 128 MB of shared L3 cache. The Intel Core i5-9400F has 64 KB of L1 per core, 256 KB of L2 per core, and 9 MB of shared L3 cache. The EPYC's L3 cache is more than 14 times larger.

The Verdict

The data points to a clear split: the AMD EPYC 7502 is the dominant processor for multi-threaded, server-class workloads, while the Intel Core i5-9400F holds its own in aggregate benchmarks despite losing every direct comparison. The EPYC's 32 cores and 64 threads, combined with 128 MB of L3 cache, 204.8 GB/s memory bandwidth, and ECC support, make it the appropriate choice for server and workstation environments where parallel processing and memory reliability are paramount. Its production status of Active and 7 nm manufacturing process from TSMC indicate a current, supported platform on AMD Socket SP3.

The i5-9400F, despite being End-of-life, posts a higher average benchmark score (13041 vs 12709) and a higher percentile ranking (68th vs 67th). This is because its benchmark profile includes PassMark tests like data compression (132877), integer math (26155), and floating point math (22465) that are not represented in the head-to-head table. The i5's 65 W TDP, dual-channel memory, and PCIe Gen 3 with 16 lanes make it a lighter-weight desktop part, suited for mainstream desktop systems where the EPYC's eight-channel memory and PCIe Gen 4 infrastructure would be overkill and physically incompatible.

Users should choose the EPYC 7502 if their workloads can utilize 64 threads, require large shared cache, need ECC memory, or demand the memory bandwidth of an eight-channel configuration. The i5-9400F is the pick for desktop builds where the 6-core/6-thread configuration, 4.10 GHz boost clock, and lower 65 W TDP align with typical consumer tasks. The data does not support using the i5 for heavy multi-core rendering — its Cinebench R23 multi-core score of 8040 is 18.3% of the EPYC's 43940 — but its aggregate score shows it remains competitive in mixed-use scenarios.

Specification Differences

| Specification | Intel Core i5-9400F | AMD EPYC 7502 |

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

| Cores | 6 | 32 |

| Threads | 6 | 64 |

| Base Clock | 2.90 GHz | 2.50 GHz |

| Boost Clock | 4.10 GHz | 3.35 GHz |

| TDP | 65 W | 180 W |

| Socket | Intel Socket 1151 | AMD Socket SP3 |

| Architecture | Coffee Lake | Zen 2 |

| Process Node | 14 nm | 7 nm |

| Foundry | Intel | TSMC |

| Transistors | N/A | 3,800 million |

| Die Size | N/A | 74 mm² |

| L1 Cache | 64 KB (per core) | 96 KB (per core) |

| L2 Cache | 256 KB (per core) | 512 KB (per core) |

| L3 Cache | 9 MB (shared) | 128 MB (shared) |

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

| Memory Bandwidth | 42.7 GB/s | 204.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 4 |

| Market Segment | Desktop | Server/Workstation |

| Production Status | End-of-life | Active |

| Release Date | 2019-01-07 | 2019-08-06 |

Where Each One Wins

The AMD EPYC 7502 wins decisively in every Cinebench benchmark category, both single-core and multi-core, across R15, R20, and R23 versions. Its wins in single-core tests (625 vs 114 in R15, 2605 vs 476 in R20, 6203 vs 1135 in R23) are particularly telling, as the i5's higher 4.10 GHz boost clock does not compensate for the EPYC's architectural efficiency. The EPYC's wins also extend to memory-intensive scenarios implied by its eight-channel 204.8 GB/s bandwidth and 128 MB L3 cache, which the i5 cannot match with its 42.7 GB/s dual-channel setup and 9 MB L3. For server deployments requiring ECC memory and PCIe Gen 4 connectivity, the EPYC is the only viable option in this pairing.

The Intel Core i5-9400F wins in the aggregate benchmark comparison, with an average score of 13041 versus the EPYC's 12709. Its PassMark results — data compression at 132877, integer math at 26155, floating point math at 22465, and single-thread at 2428 — contribute to this standing. The i5 also wins on power efficiency in the data, with a 65 W TDP versus 180 W for the EPYC, and on clock speed, with a 4.10 GHz boost versus 3.35 GHz. For desktop users on Intel Socket 1151 with dual-channel DDR4, the i5's lower power draw and higher clock speeds make it the suitable choice, provided the workload does not require more than 6 threads. The i5's production status of End-of-life versus the EPYC's Active status means the AMD part has a longer support horizon, but the i5's lower TDP and smaller platform footprint remain advantages in consumer systems.