AMD EPYC 7702 vs AMD Ryzen 5 7235HS Comparison

The AMD EPYC 7702 and the AMD Ryzen 5 7235HS represent opposite poles of AMD’s product stack, yet the aggregate benchmark data places them within 0.2% of each other in average score. The EPYC 7702 is a 64-core server processor built for throughput, while the Ryzen 5 7235HS is a 4-core mobile chip designed for efficiency. The head-to-head results are lopsided in favor of the EPYC, but the Ryzen’s presence in the same performance percentile reveals a more nuanced story about how different workloads weight core count versus per-core performance.

Where Each One Wins

The EPYC 7702 absolutely dominates in every multi-threaded and single-threaded Cinebench test recorded in the data. In Cinebench R23 multi-core, the EPYC scores 58,539 against the Ryzen’s 10,418, a 461.9% advantage. Similarly, in Cinebench R20 multi-core, the EPYC posts 24,586 versus 4,375, a 462% lead. These are not marginal wins; they are generational gaps in raw compute capacity. The EPYC’s 128 threads allow it to crush any workload that scales with core count, making it the clear choice for rendering, scientific simulation, and virtualized server environments where parallel execution is paramount.

The Ryzen 5 7235HS, despite being the clear loser in the Cinebench suite, still holds its own in the overall average benchmark score. Its PassMark results show strengths in specific tasks: it scores 152,168 in data compression, 9,051 in data encryption, and 10,887 in extended instructions. These scores are not compared directly to the EPYC in the head-to-head data, but they indicate that the Ryzen is capable in integer-heavy and encryption workloads. The Ryzen also features integrated Radeon 660M graphics, which the EPYC lacks entirely, making it the only option here for systems that need a built-in display output without a discrete GPU.

The real differentiator is workload type. The EPYC wins every measured Cinebench test outright, but the Ryzen’s aggregate score of 16,902 is so close to the EPYC’s 16,932 that the average user’s daily tasks—web browsing, office productivity, light content creation—would likely feel comparable. The EPYC is a server part; the Ryzen is a mobile part. The data shows the EPYC wins on raw compute, but the Ryzen wins on practical portability and integrated functionality.

Architecture Differences

The EPYC 7702 is built on Zen 2 architecture with the codename Rome, manufactured on a 7 nm process at TSMC. It uses 3,800 million transistors on a 74 mm² die. The Ryzen 5 7235HS uses the newer Zen 3+ architecture with the codename Rembrandt-R, manufactured on a 6 nm process, also at TSMC, with a larger 210 mm² die. The process node advantage goes to the Ryzen, which is a generation newer and denser, but the EPYC compensates with massive scale.

Core counts are the most dramatic difference: the EPYC has 64 cores and 128 threads, while the Ryzen has 4 cores and 8 threads. That is a 16x difference in core count. Cache configurations follow suit. The EPYC has 96 KB of L1 cache per core, 512 KB of L2 per core, and 256 MB of shared L3 cache. The Ryzen has 64 KB of L1 per core, 512 KB of L2 per core, but only 8 MB of shared L3. The EPYC’s L3 cache is 32 times larger, which is critical for server workloads with large working sets.

Memory support diverges sharply. The EPYC uses DDR4 memory with an eight-channel bus and 204.8 GB/s of bandwidth. The Ryzen uses DDR5 with a dual-channel bus and 76.8 GB/s of bandwidth. Both support ECC memory, but the EPYC’s eight-channel controller is designed for massive memory throughput in data centers, while the Ryzen’s dual-channel is sufficient for mobile tasks. The EPYC uses Socket SP3, a server platform, while the Ryzen uses Socket FP7, a mobile platform. The EPYC’s PCIe Gen 4 support is listed without lane count, while the Ryzen specifies Gen 4 with 20 lanes (CPU only).

The Ryzen includes integrated Radeon 660M graphics, a feature completely absent from the EPYC. Both processors have locked multipliers, so overclocking is not an option for either. The EPYC is part of the EPYC 7002 series, released in August 2019, while the Ryzen is in the 7000 series with no release date listed. The EPYC’s TDP is 200 watts, while the Ryzen’s is 45 watts, reflecting their different power envelopes and thermal targets.

Head-to-Head Benchmarks

The Cinebench suite provides the only direct head-to-head comparisons in the data, and the EPYC wins all six tests with near-identical deltas. In Cinebench R15 multi-core, the EPYC scores 5,900 versus 1,050, a 461.9% lead. In R15 single-core, the EPYC scores 832 versus 148, a 462.2% lead. The single-core results are notable because they show the EPYC’s per-core performance is also superior, not just its thread count. The EPYC’s base clock of 2.00 GHz and boost of 3.35 GHz are lower than the Ryzen’s 3.20 GHz base and 4.20 GHz boost, yet the EPYC still wins single-core Cinebench by a wide margin. This indicates the EPYC’s Zen 2 architecture, despite lower clocks, delivers better instructions per clock in these specific tests.

Cinebench R20 multi-core shows the EPYC at 24,586 versus 4,375, a 462% delta. R20 single-core has the EPYC at 3,470 versus 617, a 462.4% delta. Cinebench R23 multi-core continues the trend with the EPYC at 58,539 versus 10,418, a 461.9% delta. R23 single-core is 8,264 versus 1,470, a 462.2% delta. The consistency of these deltas—all hovering around 462%—suggests the performance gap is primarily due to core count, not architectural efficiency. If the Ryzen’s per-core performance were significantly better, the single-core deltas would be smaller. Instead, the EPYC’s single-core scores are also roughly 4.6 times higher, meaning the EPYC’s older Zen 2 cores are still far more efficient in Cinebench than the Ryzen’s Zen 3+ cores.

The Ryzen’s only statistical wins come from its PassMark suite, but those are not part of the head-to-head table. The head-to-head data shows 6 wins for the EPYC and 0 for the Ryzen. This is a clean sweep, but the PassMark data for the Ryzen (e.g., 23,091 in floating point math, 40,174 in integer math, 12,243 in multithread) indicates it is a capable processor for mobile workloads, even if it cannot match the EPYC’s server-class throughput.

Specification Differences

The two processors differ in nearly every specification category. Core count is 64 versus 4, threads are 128 versus 8. Base clock is 2.00 GHz versus 3.20 GHz, and boost clock is 3.35 GHz versus 4.20 GHz. TDP is 200 watts versus 45 watts. The EPYC uses Socket SP3, the Ryzen uses Socket FP7. Architecture is Zen 2 versus Zen 3+, codename Rome versus Rembrandt-R. Process node is 7 nm versus 6 nm.

Cache differs per core and in total. L1 cache is 96 KB per core on the EPYC versus 64 KB per core on the Ryzen. L2 cache is identical at 512 KB per core. L3 cache is 256 MB shared on the EPYC versus 8 MB shared on the Ryzen. Memory support is DDR4 versus DDR5, with eight-channel versus dual-channel buses. Memory bandwidth is 204.8 GB/s versus 76.8 GB/s. The EPYC has no integrated graphics, while the Ryzen has Radeon 660M. The EPYC’s die size is 74 mm² versus 210 mm² for the Ryzen. The EPYC uses 3,800 million transistors, while the Ryzen’s transistor count is not listed.

The EPYC is from the EPYC 7002 series, released in 2019, while the Ryzen is from the 7000 series with no release date. The EPYC’s part number is 100-000000038, the Ryzen’s is 100-000001507. Both are active in production, both are locked, and both are from AMD. The EPYC targets the server/workstation market segment, the Ryzen targets mobile.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7702 has 64 cores and 128 threads, while the AMD Ryzen 5 7235HS has 4 cores and 8 threads.

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

A: The EPYC 7702 scores 58,539, which is 461.9% ahead of the Ryzen 5 7235HS’s score of 10,418 in Cinebench R23 multi-core.

Q: Does the Ryzen 5 7235HS have integrated graphics?

A: Yes, the Ryzen 5 7235HS includes integrated Radeon 660M graphics. The EPYC 7702 has no integrated graphics.

Q: What memory types do the two processors support?

A: The EPYC 7702 supports DDR4 memory with an eight-channel bus and 204.8 GB/s bandwidth. The Ryzen 5 7235HS supports DDR5 memory with a dual-channel bus and 76.8 GB/s bandwidth.

Q: How do their average benchmark scores compare?

A: The EPYC 7702 has an average benchmark score of 16,932, while the Ryzen 5 7235HS has an average score of 16,902, a difference of 0.2%.

Q: Which chip wins in single-core Cinebench R20?

A: The EPYC 7702 wins with a score of 3,470, which is 462.4% higher than the Ryzen 5 7235HS’s score of 617.