AMD EPYC 7352 vs AMD Ryzen 7 8840HX Comparison

Head-to-Head Benchmarks

The head-to-head results paint a surprisingly lopsided picture at first glance, with the AMD EPYC 7352 taking 9 of the 13 recorded benchmarks. The most dramatic gap appears in Cinebench R23 single-core, where the EPYC 7352 scores 4844 against the Ryzen 7 8840HX's 1857, a 61.7% deficit for the mobile chip. That result is counterintuitive given the Ryzen's much higher boost clock, but the data is unambiguous. In multi-core Cinebench R23, the EPYC again dominates, posting 34314 versus 25265, a 26.4% advantage. The server part's 24 cores and 48 threads simply overwhelm the Ryzen's 12 cores and 24 threads in heavily threaded rendering workloads.

The EPYC's lead extends into data-centric tasks. PassMark data compression shows the EPYC at 660712 versus 496427, a 24.9% edge, while data encryption favors the EPYC by 32.7% (44426 versus 29919). Extended instructions also go to the EPYC, though by a narrower 9.1% margin (40203 versus 36527). Physics simulation results show an 18.7% EPYC advantage (2688 versus 2185), and random string sorting goes to the EPYC by 16.3% (69231 versus 57971).

Yet the Ryzen 7 8840HX is not without its victories, and one is particularly striking. In PassMark single-thread testing, the Ryzen scores 3958, exactly double the EPYC's 1979, a 100% advantage. This is a massive generational and architectural gap, reflecting the Ryzen's Zen 4 design versus the EPYC's older Zen 2. The Ryzen also wins PassMark multithread by 3.4% (41732 versus 40370), despite having half the cores. That result suggests the Ryzen's per-core efficiency and higher clocks compensate significantly for its core deficit in certain parallel workloads. The Ryzen also edges out the EPYC in find prime numbers, 304 to 301, a razor-thin 1% margin. Floating point math and integer math are near ties, with the EPYC leading by just 1.4% in both (87969 versus 86747, and 148605 versus 146506 respectively).

The average benchmark scores tell a similar story: the Ryzen 7 8840HX averages 71797, while the EPYC 7352 averages 68118. The Ryzen actually sits 5.4% higher on average, despite losing most head-to-head tests, because its single-thread dominance and multithread win pull the average up. Both chips rank in the 94th percentile among all CPUs, placing them in the same performance tier overall, albeit with very different profiles.

FAQ

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

A: The AMD Ryzen 7 8840HX wins PassMark single-thread by a 100% margin, scoring 3958 versus the EPYC 7352's 1979. The Ryzen also shows a higher boost clock of 5.10 GHz versus 3.20 GHz.

Q: Does the EPYC 7352 always beat the Ryzen in multi-core workloads?

A: No. While the EPYC wins Cinebench R23 multi-core by 26.4% (34314 versus 25265), the Ryzen 7 8840HX actually wins PassMark multithread by 3.4% (41732 versus 40370). The results depend heavily on the specific workload.

Q: How do these two compare in memory bandwidth?

A: The EPYC 7352 has a massive memory bandwidth advantage at 204.8 GB/s, thanks to its eight-channel DDR4 memory bus. The Ryzen 7 8840HX offers 83.2 GB/s over dual-channel DDR5.

Q: What is the difference in physical core counts?

A: The EPYC 7352 has 24 cores and 48 threads, exactly double the Ryzen 7 8840HX's 12 cores and 24 threads.

Q: Which processor supports ECC memory?

A: Only the EPYC 7352 supports ECC memory. The Ryzen 7 8840HX does not have ECC support listed in the database.

Q: How far apart are their release dates?

A: The EPYC 7352 was released on August 6, 2019, while the Ryzen 7 8840HX came out on April 22, 2025, nearly six years later.

The Verdict

The data points to a clear split by workload type. For single-threaded performance, the Ryzen 7 8840HX is the unequivocal choice, delivering double the PassMark single-thread score and a 61.7% higher Cinebench R23 single-core result. Any application that is latency-sensitive or relies on a few fast cores will strongly favor the Ryzen. Its 5.10 GHz boost clock and Zen 4 architecture provide a decisive edge.

For heavily threaded server-style workloads, the EPYC 7352 is the stronger part. Its 24 cores and 48 threads dominate in Cinebench R23 multi-core, data compression, encryption, physics simulation, and random string sorting. The EPYC's 204.8 GB/s eight-channel memory bandwidth also makes it better suited for memory-bound server tasks, and its ECC support is critical for data integrity in server environments.

The average benchmark scores complicate the picture: the Ryzen's 71797 average exceeds the EPYC's 68118 by 5.4%, indicating that overall the Ryzen is not a lesser chip, just a differently oriented one. Both sit at the 94th percentile of all CPUs. The Ryzen's wins in PassMark multithread and single-thread are notable counterpoints to the EPYC's raw core count advantage.

Specification Differences

| Specification | AMD Ryzen 7 8840HX | AMD EPYC 7352 |

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

| Cores | 12 | 24 |

| Threads | 24 | 48 |

| Base Clock | 2.90 GHz | 2.30 GHz |

| Boost Clock | 5.10 GHz | 3.20 GHz |

| TDP | 55 W | 155 W |

| Socket | AMD Socket FL1 | AMD Socket SP3 |

| Process Node | 5 nm | 7 nm |

| Transistors | 13,140 million | 15,200 million |

| Die Size | 2x 71 mm² | 4x 74 mm² |

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

| L3 Cache | 64 MB (shared) | 32 MB (per die), 128 MB total |

| Memory Support | DDR5 | DDR4 |

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

| Memory Bandwidth | 83.2 GB/s | 204.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 5, 28 Lanes (CPU only) | Gen 4, 128 Lanes (CPU only) |

| Integrated Graphics | Radeon 610M | None |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2025-04-22 | 2019-08-06 |

| Multiplier Unlocked | Yes | No |

| Launch MSRP | Not listed | $1350 |

Architecture Differences

The Ryzen 7 8840HX uses the Zen 4 architecture on a 5 nm TSMC process, while the EPYC 7352 relies on the older Zen 2 architecture on a 7 nm node. This generational gap explains much of the performance divergence. Zen 4 brings substantial IPC improvements over Zen 2, which is why the Ryzen can achieve double the single-thread performance despite a lower core count. The Ryzen's Dragon Range codename targets high-end mobile computing, while the EPYC's Rome codename is designed for data center scale-out.

The cache layouts differ significantly. The Ryzen has 64 KB of L1 per core and 1 MB of L2 per core, with 64 MB of shared L3. The EPYC has 96 KB of L1 per core and 512 KB of L2 per core, but its L3 is organized as 32 MB per die, totaling 128 MB across the chip. That larger total L3 gives the EPYC an edge in cache-hungry server workloads, though the per-core L2 is smaller.

The memory architectures reflect their different market positions. The Ryzen uses dual-channel DDR5 with 83.2 GB/s bandwidth, while the EPYC uses eight-channel DDR4 with 204.8 GB/s, nearly 2.5 times the bandwidth. The EPYC also supports ECC memory, a critical feature for server reliability. The Ryzen includes integrated Radeon 610M graphics, which the EPYC lacks entirely. The Ryzen also offers PCIe Gen 5 with 28 lanes, while the EPYC provides PCIe Gen 4 with a much larger 128 lanes for server I/O demands.

The transistor counts and die sizes reflect their construction approaches. The Ryzen packs 13,140 million transistors across two 71 mm² dies, while the EPYC uses 15,200 million transistors across four 74 mm² dies. The EPYC's multi-die design supports its 24-core configuration, whereas the Ryzen's dual-die approach serves a 12-core mobile part.

Where Each One Wins

The EPYC 7352 wins in 9 of 13 head-to-head benchmarks, establishing clear dominance in server-class workloads. It excels in Cinebench R23 multi-core (26.4% ahead), data compression (24.9%), data encryption (32.7%), physics simulation (18.7%), random string sorting (16.3%), and extended instructions (9.1%). Its 24 cores and 48 threads, combined with 128 MB of L3 cache and 204.8 GB/s memory bandwidth, make it the superior choice for rendering farms, database servers, virtualization hosts, and any workload that scales linearly with core count. The EPYC's ECC memory support and 128 PCIe Gen 4 lanes further cement its position for mission-critical server deployments.

The Ryzen 7 8840HX wins 4 of 13 benchmarks, with its most notable victory being a 100% margin in PassMark single-thread. It also wins PassMark multithread by 3.4%, proving that its higher clocks and newer architecture can overcome a core deficit in certain parallel tasks. The Ryzen's 5.10 GHz boost clock and Zen 4 IPC make it the obvious choice for single-threaded applications, low-latency workloads, gaming, and general desktop productivity. Its 55 W TDP is dramatically lower than the EPYC's 155 W, making it suitable for mobile systems where power efficiency matters. The integrated Radeon 610M provides display output without a dedicated GPU, useful for thin-and-light designs.

The average benchmark scores indicate the Ryzen actually holds a 5.4% overall advantage (71797 versus 68118), suggesting that for mixed-use scenarios, the Ryzen delivers more balanced performance. The EPYC's strengths are concentrated in specific server-oriented tasks, while the Ryzen offers a broader capability profile. For users who need maximum single-thread responsiveness or work in a mobile form factor, the Ryzen is the data-backed selection. For those running heavily threaded server workloads with ECC requirements and massive memory bandwidth needs, the EPYC's benchmark wins make it the clear pick.