AMD EPYC 7702 vs AMD Ryzen 3 8440U Comparison

The AMD Ryzen 3 8440U and AMD EPYC 7702 occupy opposite ends of the processor spectrum, yet both hold the 70th percentile among all CPUs. The data presents a stark contrast: the Ryzen 3 8440U is a 4-core, 8-thread mobile part with a 28 W TDP, while the EPYC 7702 is a 64-core, 128-thread server behemoth with a 200 W TDP. Benchmark results confirm the EPYC’s overwhelming dominance in raw compute, but the Ryzen’s architecture and efficiency profile reveal a different set of strengths.

Head-to-Head Benchmarks

The Cinebench results are unequivocal. Across all six benchmarks, the AMD EPYC 7702 wins decisively, with the Ryzen 3 8440U trailing by a consistent margin of roughly 81%. In Cinebench R23 multi-core, the EPYC scores 58,539 against the Ryzen’s 10,884, a delta of -81.4%. The single-core R23 test shows a similar pattern: EPYC at 8,264 versus Ryzen at 1,536, also -81.4%. This consistency is notable—the performance gap is nearly identical whether the workload scales across cores or runs on a single thread.

The pattern holds in older Cinebench versions. In Cinebench R20 multi-core, the EPYC 7702 posts 24,586 versus 4,571 for the Ryzen 3 8440U (-81.4%). The single-core R20 result is 3,470 against 645 (-81.4%). Cinebench R15 shows the same: multi-core 5,900 versus 1,097 (-81.4%) and single-core 832 versus 154 (-81.5%). The half-point difference in the R15 single-core delta is the only variation in the data.

These numbers tell a clear story about scaling. The EPYC 7702 has 16 times the cores and 16 times the threads of the Ryzen 3 8440U, yet its multi-core advantage is only about 5.4 times in R23 (58,539 / 10,884). This indicates imperfect scaling—likely due to memory bandwidth, cache contention, or power constraints—but the absolute performance gap remains enormous. The single-core deltas are equally striking: the EPYC’s Zen 2 cores at a 3.35 GHz boost clock outperform the Ryzen’s Zen 4 cores at 4.70 GHz by over 5 times in every single-core test. This suggests the EPYC’s architecture, despite being older, delivers far higher per-thread throughput in these specific workloads.

The wins are lopsided: 6 for the EPYC 7702, 0 for the Ryzen 3 8440U. No benchmark in the head-to-head set favors the mobile chip.

Where Each One Wins

The EPYC 7702 wins every benchmark in which the two are directly compared. Its multi-core scores—58,539 in R23, 24,586 in R20, 5,900 in R15—are in a different class entirely. This is a processor built for massive parallel workloads: server virtualization, database processing, scientific computing, and any task that can utilize 128 threads. The 256 MB of shared L3 cache and eight-channel DDR4 memory with 204.8 GB/s bandwidth support this role, enabling the CPU to feed its many cores efficiently.

The Ryzen 3 8440U, while losing all six head-to-head tests, has no direct wins to claim. However, its benchmark profile from the broader data set shows where it excels. The PassMark results reveal strengths in specific operations: a single-thread score of 3,648, integer math at 37,468, and floating-point math at 23,017. Data encryption scores 8,012, and extended instructions hit 11,059. These numbers, while lower in absolute terms than a 64-core part would produce, indicate a capable processor for everyday mobile tasks, light content creation, and general productivity. Its 4.70 GHz boost clock and Zen 4 architecture with 4 nm process node suggest excellent per-watt performance, though the data does not provide direct efficiency comparisons.

The Ryzen’s integrated Radeon 740M graphics and DDR5 memory support also position it for mobile systems where discrete GPUs are absent. The EPYC 7702 has no integrated graphics and requires a server platform. The data shows the Ryzen 3 8440U is the only one of the two that can operate without a separate graphics card.

Architecture Differences

The two processors come from different generations and process nodes. The Ryzen 3 8440U is built on Zen 4 architecture with the Hawk Point codename, fabricated on a 4 nm process at TSMC. It contains 20,900 million transistors on a 137 mm² die. The EPYC 7702 uses Zen 2 architecture with the Rome codename, on a 7 nm process, also at TSMC, with 3,800 million transistors on a 74 mm² die. The Ryzen uses a more advanced process with far more transistors and a larger die.

Cache layouts differ significantly. The Ryzen 3 8440U has 64 KB of L1 per core, 1 MB of L2 per core, and 8 MB of shared L3. The EPYC 7702 has 96 KB of L1 per core, 512 KB of L2 per core, and a massive 256 MB of shared L3. The EPYC’s cache strategy favors its many-core design, while the Ryzen’s smaller L3 reflects its mobile focus.

Memory support is another divide. The Ryzen uses dual-channel DDR5 with 89.6 GB/s bandwidth and no ECC support. The EPYC uses eight-channel DDR4 with 204.8 GB/s bandwidth and full ECC support. PCIe capabilities also differ: the Ryzen provides Gen 4 with 14 lanes (CPU only), while the EPYC offers Gen 4 with an unspecified lane count. The Ryzen includes integrated Radeon 740M graphics; the EPYC has none.

The sockets and platforms are incompatible: AMD Socket FP7 for the Ryzen, AMD Socket SP3 for the EPYC. The Ryzen’s TDP is 28 W; the EPYC’s is 200 W. The Ryzen was released on 2023-12-05, the EPYC on 2019-08-06. Both have locked multipliers and are currently in active production.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7702 has 64 cores and 128 threads. The AMD Ryzen 3 8440U has 4 cores and 8 threads.

Q: What is the performance difference in Cinebench R23 multi-core?

A: The EPYC 7702 scores 58,539 versus 10,884 for the Ryzen 3 8440U, a delta of -81.4% for the Ryzen.

Q: Does the Ryzen 3 8440U support ECC memory?

A: No. ECC memory is false for the Ryzen 3 8440U. The EPYC 7702 supports ECC memory.

Q: Which processor has a higher boost clock?

A: The Ryzen 3 8440U has a boost clock of 4.70 GHz. The EPYC 7702 has a boost clock of 3.35 GHz.

Q: What is the memory bandwidth for each processor?

A: The Ryzen 3 8440U has 89.6 GB/s with dual-channel DDR5. The EPYC 7702 has 204.8 GB/s with eight-channel DDR4.

Q: Which processor includes integrated graphics?

A: The Ryzen 3 8440U includes Radeon 740M integrated graphics. The EPYC 7702 has no integrated graphics.

Specification Differences

| Specification | AMD Ryzen 3 8440U | AMD EPYC 7702 |

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

| Cores | 4 | 64 |

| Threads | 8 | 128 |

| Base Clock | 3.00 GHz | 2000.00 MHz |

| Boost Clock | 4.70 GHz | 3.35 GHz |

| TDP | 28 W | 200 W |

| Socket | AMD Socket FP7 | AMD Socket SP3 |

| Architecture | Zen 4 | Zen 2 |

| Codename | Hawk Point | Rome |

| Process Node | 4 nm | 7 nm |

| Transistors | 20,900 million | 3,800 million |

| Die Size | 137 mm² | 74 mm² |

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

| L2 Cache | 1 MB (per core) | 512 KB (per core) |

| L3 Cache | 8 MB (shared) | 256 MB (shared) |

| Memory Support | DDR5 | DDR4 |

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

| Memory Bandwidth | 89.6 GB/s | 204.8 GB/s |

| ECC Memory | false | true |

| PCIe | Gen 4, 14 Lanes (CPU only) | Gen 4 |

| Integrated Graphics | Radeon 740M | null |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2023-12-05 | 2019-08-06 |

| Part Number | 100-000001325 (FP7r2) / 100-000001332 (FP7) | 100-000000038 |

The Verdict

The data dictates a clear choice based on workload. For server and workstation applications requiring maximum parallel throughput, the AMD EPYC 7702 is the only option. Its 64 cores, 128 threads, 256 MB L3 cache, and eight-channel memory deliver 58,539 in Cinebench R23 multi-core—a score the Ryzen 3 8440U cannot approach. The EPYC’s ECC memory support and 204.8 GB/s bandwidth further cement its position for data-center tasks where reliability and memory capacity are critical.

For mobile computing, the Ryzen 3 8440U is the appropriate pick. It is the only one with integrated graphics, a 28 W TDP, and a 4 nm process node. Its 4.70 GHz boost clock and Zen 4 architecture provide strong single-thread performance for everyday applications, even though it loses every head-to-head benchmark to the EPYC. The Ryzen’s DDR5 support and smaller footprint make it suitable for laptops and compact systems.

The average benchmark scores reflect their respective classes: the Ryzen 3 8440U averages 16,663, while the EPYC 7702 averages 16,932—a mere 1.6% difference. This near-parity in average score, despite the EPYC’s massive core advantage, highlights how the Ryzen’s efficiency and per-core performance compensate in the aggregate. Both processors sit at the 70th percentile of all CPUs, but they achieve that standing through opposite strategies: the Ryzen through modern architecture and high clocks, the EPYC through brute core count and massive cache. Choose the Ryzen 3 8440U for portable, graphics-integrated systems; choose the EPYC 7702 for heavy multi-threaded server workloads. There is no middle ground in this comparison.