AMD EPYC 74F3 vs AMD Ryzen 5 40 Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 74F3 has 24 cores and 48 threads, while the AMD Ryzen 5 40 has 4 cores and 8 threads. The EPYC part offers six times the core count and six times the thread count.

Q: How do the two chips compare in single-core Cinebench R23 performance?

A: The EPYC 74F3 scores 7279 in Cinebench R23 single-core, which is 84.2% higher than the Ryzen 5 40's 1150. The EPYC's higher boost clock of 4.00 GHz and Zen 3 architecture contribute to this gap.

Q: What is the difference in memory bandwidth?

A: The EPYC 74F3 supports eight-channel DDR4 memory with 204.8 GB/s bandwidth, while the Ryzen 5 40 uses dual-channel LPDDR5 with 88.0 GB/s. The EPYC delivers 2.3 times the raw memory bandwidth.

Q: Do both processors support ECC memory?

A: No. The EPYC 74F3 supports ECC memory, while the Ryzen 5 40 does not. This makes the EPYC more suitable for error-sensitive server workloads.

Q: What are the manufacturing process nodes?

A: The Ryzen 5 40 is built on TSMC's 6 nm process, while the EPYC 74F3 uses TSMC's 7 nm node. The Ryzen part is the newer manufacturing generation despite being a mobile chip.

Q: Which processor has a higher average benchmark score?

A: The Ryzen 5 40 has an average benchmark score of 15882, while the EPYC 74F3 scores 14915. However, this average includes different benchmark suites, and the EPYC dominates in the shared Cinebench tests.

Architecture Differences

The two processors come from different AMD product lines and architectural generations. The Ryzen 5 40 uses the Zen 2 architecture under the codename Mendocino, built on a 6 nm TSMC process. It is a mobile-oriented chip with a die size of 100 mm². The EPYC 74F3 uses Zen 3 under the codename Milan, built on a 7 nm TSMC process, with a multi-chiplet design consisting of four dies at 81 mm² each. The EPYC package contains 33,200 million transistors, while the Ryzen 5 40 has no transistor count listed in the database.

Cache hierarchies differ substantially. Both chips have 64 KB L1 and 512 KB L2 per core, but the L3 cache is where they diverge. The Ryzen 5 40 has 4 MB of shared L3 cache, while the EPYC 74F3 has 256 MB of shared L3 cache. That is a 64-fold difference in L3 capacity, which directly impacts data-heavy server workloads.

Memory support is another major architectural split. The Ryzen 5 40 uses LPDDR5 memory over a dual-channel bus, achieving 88.0 GB/s bandwidth. The EPYC 74F3 uses DDR4 over an eight-channel bus, reaching 204.8 GB/s. ECC memory is supported only on the EPYC. PCIe connectivity also differs: the Ryzen 5 40 provides Gen 3 with 4 lanes from the CPU, while the EPYC 74F3 offers Gen 4 with 128 lanes. The Ryzen part includes integrated Radeon 610M graphics, while the EPYC has no integrated GPU.

Socket and thermal designs are distinct as well. The Ryzen 5 40 fits AMD Socket FT6 with a 15 W TDP, while the EPYC 74F3 uses AMD Socket SP3 with a 240 W TDP. The Ryzen chip is a low-power mobile part; the EPYC is a high-power server processor. The EPYC also has a launch MSRP of $2900, while the Ryzen 5 40 has no listed launch MSRP.

Head-to-Head Benchmarks

The shared benchmark suite covers four Cinebench tests, and the EPYC 74F3 wins all four. In Cinebench R15 multicore, the EPYC scores 5197 against the Ryzen's 790, a delta of 84.8% in favor of the EPYC. The multicore advantage is even starker in Cinebench R23: the EPYC scores 51566 versus 4841, a 90.6% margin. These results reflect the EPYC's 6x core advantage and its larger cache pool.

Single-core results also favor the EPYC, though by a slightly smaller margin. In Cinebench R15 single-core, the EPYC scores 733 against 165.5, a 77.4% lead. In Cinebench R23 single-core, the EPYC scores 7279 against 1150, an 84.2% lead. The EPYC's boost clock is 4.00 GHz compared to the Ryzen's 4.30 GHz, yet the EPYC still wins single-core tests. This indicates the Zen 3 architecture's IPC advantage over Zen 2 outweighs the Ryzen's higher boost frequency.

The database also records separate benchmark results for each chip that do not overlap. The Ryzen 5 40 has PassMark scores including 141533 in data compression, 6646 in data encryption, 6437 in extended instructions, 15194 in floating point math, 31598 in integer math, 9341 in multithread, 432 in physics, 15124 in random string sorting, and 2477 in single-thread tests. The EPYC 74F3 has additional Cinebench R20 scores of 21657 in multicore and 3057 in single-core. These non-overlapping tests cannot be directly compared head-to-head but provide context for each chip's strengths.

The wins tally is decisive: the EPYC 74F3 wins 4 out of 4 shared benchmarks, with the Ryzen 5 40 recording 0 wins. The average benchmark score, however, tells a different story. The Ryzen 5 40 averages 15882 across its benchmark suite, while the EPYC 74F3 averages 14915. This discrepancy arises because the two chips run different benchmark sets, and the Ryzen's PassMark results are weighted toward its mobile workload profile.

Percentile rankings are close. The Ryzen 5 40 sits at the 70th percentile among all CPUs, while the EPYC 74F3 sits at the 69th percentile. In nearest rival data, the Ryzen 5 40's closest competitors include the AMD EPYC 75F3 (0.1% ahead), Intel Core Ultra 5 134U (0.2% behind), AMD EPYC 9354P (0.4% ahead), and AMD EPYC 9334 (0.4% behind). The EPYC 74F3's nearest rivals include the Intel Core i7-9750H (0.2% ahead), Intel Core i3-10320 (0.4% ahead), Intel Core i3-1315U (0.7% behind), and AMD EPYC 7702P (1.4% behind).

The Verdict

The data points to a clear split by workload. For single-threaded and multicore Cinebench workloads, the EPYC 74F3 is the dominant processor, winning all four shared tests by margins between 77.4% and 90.6%. Its 24 cores, 48 threads, 256 MB L3 cache, and 204.8 GB/s memory bandwidth make it the appropriate choice for server, workstation, and data-center tasks that scale with core count and cache capacity. The EPYC also supports ECC memory and 128 PCIe Gen 4 lanes, both critical for reliable enterprise deployments.

The Ryzen 5 40, by contrast, is a mobile processor with a 15 W TDP, integrated Radeon 610M graphics, and LPDDR5 memory support. Its 4 cores and 8 threads are suited for lightweight, power-constrained devices where the 6 nm process and lower thermal envelope matter more than raw throughput. The Ryzen's higher boost clock of 4.30 GHz and its average benchmark score of 15882 indicate it holds its own in its own benchmark suite, but those results do not transfer to the server-class workloads where the EPYC excels.

Buyers should choose the EPYC 74F3 for compute-intensive, multi-threaded server environments where the 90.6% multicore advantage in Cinebench R23 translates to real-world gains in rendering, virtualization, and database workloads. The Ryzen 5 40 is the pick for portable, fanless or low-power designs where the 15 W TDP and integrated graphics are essential, and where the 70th percentile ranking among all CPUs is sufficient for everyday tasks.

Neither chip offers an unlocked multiplier, so overclocking is not a differentiator. The EPYC's launch MSRP of $2900 reflects its server positioning, while the Ryzen 5 40 has no listed MSRP, consistent with its mobile OEM focus.

Specification Differences

| Specification | AMD Ryzen 5 40 | AMD EPYC 74F3 |

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

| Cores | 4 | 24 |

| Threads | 8 | 48 |

| Boost Clock | 4.30 GHz | 4.00 GHz |

| TDP | 15 W | 240 W |

| Socket | AMD Socket FT6 | AMD Socket SP3 |

| Architecture | Zen 2 | Zen 3 |

| Codename | Mendocino | Milan |

| Process Node | 6 nm | 7 nm |

| Transistors | Not listed | 33,200 million |

| Die Size | 100 mm² | 4x 81 mm² |

| L3 Cache | 4 MB (shared) | 256 MB (shared) |

| Memory Support | LPDDR5 | DDR4 |

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

| Memory Bandwidth | 88.0 GB/s | 204.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 4 Lanes (CPU only) | Gen 4, 128 Lanes (CPU only) |

| Integrated Graphics | Radeon 610M | None |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2025-09-30 | 2021-03-14 |

| Launch MSRP | Not listed | $2900 |

| Cinebench R15 Multicore | 790 | 5197 |

| Cinebench R15 Single-Core | 165.5 | 733 |

| Cinebench R23 Multicore | 4841 | 51566 |

| Cinebench R23 Single-Core | 1150 | 7279 |

| Percentile vs All CPUs | 70 | 69 |

| Average Benchmark Score | 15882 | 14915 |