AMD EPYC 7543P vs AMD Ryzen 5 7235HS Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7543P has 32 cores and 64 threads, while the AMD Ryzen 5 7235HS has 4 cores and 8 threads. The EPYC offers 8 times the core count and 8 times the thread count.

Q: What are the key differences in memory architecture?

A: The Ryzen 5 7235HS supports DDR5 memory on a dual-channel bus with a bandwidth of 76.8 GB/s. The EPYC 7543P uses DDR4 memory on an eight-channel bus, delivering 204.8 GB/s of bandwidth. Both support ECC memory.

Q: Which processor has a higher boost clock?

A: The Ryzen 5 7235HS boosts to 4.20 GHz, while the EPYC 7543P boosts to 3.70 GHz. The Ryzen part has a 0.50 GHz higher boost clock.

Q: How do they compare in PCIe lane availability?

A: The EPYC 7543P provides 128 PCIe Gen 4 lanes (CPU only), whereas the Ryzen 5 7235HS provides 20 PCIe Gen 4 lanes (CPU only). The EPYC offers 108 more lanes.

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

A: Yes, it features Radeon 660M integrated graphics. The EPYC 7543P has no integrated graphics at all.

Q: What are the process nodes for each chip?

A: The Ryzen 5 7235HS is built on a 6 nm process at TSMC, while the EPYC 7543P uses a 7 nm process, also at TSMC.

Where Each One Wins

The benchmark data splits cleanly along workload types. The AMD EPYC 7543P wins every single recorded head-to-head test, taking all 6 victories. The Ryzen 5 7235HS does not record a single win in the head-to-head benchmark set. This is not a close contest; the EPYC dominates across both multi-core and single-core Cinebench workloads.

The EPYC 7543P wins decisively in heavy parallel workloads. Its Cinebench R23 multi-core score of 56,683 dwarfs the Ryzen's 10,418. The difference is even more pronounced in Cinebench R15 multi-core, where the EPYC scores 5,713 versus the Ryzen's 1,050. This makes the EPYC the clear choice for rendering, simulation, and any task that scales across many cores.

The EPYC also wins in single-core performance, though the margin is proportionally similar. Its Cinebench R23 single-core score of 8,002 against the Ryzen's 1,470 shows a substantial lead in lightly threaded tasks as well. The Ryzen 5 7235HS has no category where it outperforms the EPYC in the measured tests. Its strengths lie elsewhere, such as its lower power draw and integrated graphics, but those are not reflected in the benchmark wins.

Architecture Differences

The two processors come from different architectural lineages. The Ryzen 5 7235HS uses Zen 3+ architecture under the codename Rembrandt-R, part of the 7000 series. The EPYC 7543P uses Zen 3 architecture under the codename Milan, part of the EPYC 7003 series. The Ryzen is built on a 6 nm TSMC process, while the EPYC uses a 7 nm TSMC process. The Ryzen's die size is 210 mm², whereas the EPYC has a multi-die design listed as 8x 81 mm². The EPYC's transistor count is recorded as 33,200 million; the Ryzen's transistor count is not listed in the database.

The cache hierarchy shows a major difference. Both have 64 KB of L1 cache per core and 512 KB of L2 cache per core. The L3 cache, however, diverges sharply: the Ryzen has 8 MB shared L3, while the EPYC has 256 MB shared L3. That is a 32-fold difference in total L3 capacity, which directly benefits the EPYC in data-heavy server workloads.

Memory support also differs. The Ryzen uses DDR5 with a dual-channel bus, while the EPYC uses DDR4 with an eight-channel bus. The EPYC's memory bandwidth of 204.8 GB/s is nearly triple the Ryzen's 76.8 GB/s. Both support ECC memory. PCIe connectivity is another differentiator: the EPYC offers 128 Gen 4 lanes, versus 20 Gen 4 lanes for the Ryzen. The Ryzen includes Radeon 660M integrated graphics, while the EPYC has none.

The socket and market positioning are fundamentally different. The Ryzen uses AMD Socket FP7 and targets the mobile segment. The EPYC uses AMD Socket SP3 and targets server and workstation applications. The Ryzen has a 45 W TDP, while the EPYC has a 225 W TDP.

Specification Differences

The core and thread counts differ substantially: 4 cores and 8 threads for the Ryzen, versus 32 cores and 64 threads for the EPYC. The base clock is higher on the Ryzen at 3.20 GHz, compared to 2.80 GHz on the EPYC. The boost clock also favors the Ryzen at 4.20 GHz, versus 3.70 GHz for the EPYC.

The TDP values are starkly different: 45 W for the Ryzen, 225 W for the EPYC. The Ryzen has a smaller process node at 6 nm, while the EPYC uses 7 nm. The die size and transistor counts differ as noted: 210 mm² for the Ryzen, 8x 81 mm² for the EPYC, with the EPYC listing 33,200 million transistors.

The L3 cache is 8 MB on the Ryzen versus 256 MB on the EPYC. Memory support differs by generation and channel count: DDR5 dual-channel for the Ryzen, DDR4 eight-channel for the EPYC. Memory bandwidth ranges from 76.8 GB/s to 204.8 GB/s. PCIe lanes are 20 on the Ryzen versus 128 on the EPYC, both Gen 4.

The Ryzen has integrated Radeon 660M graphics; the EPYC has no integrated graphics. The Ryzen's market segment is mobile, while the EPYC is for server or workstation use. The EPYC has a recorded release date of March 14, 2021, and a launch MSRP of $2730. The Ryzen's release date and launch MSRP are not recorded in the database. Both processors are active in production, and neither has an unlocked multiplier.

Head-to-Head Benchmarks

All six recorded head-to-head benchmarks are Cinebench tests, and the EPYC 7543P wins all of them with the same delta percentage of -81.6% relative to the Ryzen. That means the EPYC's scores are roughly 81.6% higher than the Ryzen's in every test, a consistent margin across both multi-core and single-core workloads.

In Cinebench R15 multi-core, the EPYC scores 5,713 against the Ryzen's 1,050. The single-core R15 test shows 806 versus 148. The ratio is identical in both cases, suggesting the per-core advantage scales directly with the architecture's clock-for-clock performance.

Cinebench R20 multi-core results show the EPYC at 23,806 and the Ryzen at 4,375. The single-core R20 test has the EPYC at 3,360 and the Ryzen at 617. Again, the EPYC leads by the same proportional margin.

Cinebench R23, the most recent test in the set, shows the EPYC at 56,683 multi-core and 8,002 single-core. The Ryzen scores 10,418 multi-core and 1,470 single-core. The EPYC's multi-core advantage is especially pronounced, given its 32 cores versus 4.

The consistent -81.6% delta across every test indicates that the EPYC's advantage is not workload-dependent within this benchmark suite. The Ryzen's higher boost clock of 4.20 GHz does not compensate for the EPYC's superior core count and larger L3 cache. The EPYC wins all 6 head-to-head comparisons, leaving the Ryzen with 0 wins.

The Verdict

The data makes the choice straightforward for most users. The AMD EPYC 7543P is the superior processor for any compute-heavy task that can utilize multiple cores or benefit from large cache and memory bandwidth. Its 32 cores and 64 threads, combined with 256 MB of L3 cache and 204.8 GB/s of memory bandwidth, deliver benchmark scores that are consistently about 81.6% higher than the Ryzen 5 7235HS across all recorded Cinebench tests. It is the clear pick for server, workstation, rendering, and virtualization workloads.

The Ryzen 5 7235HS may be the better fit for mobile or power-constrained environments. Its 45 W TDP is far lower than the EPYC's 225 W, and it includes integrated Radeon 660M graphics, which the EPYC lacks. Its higher base and boost clocks (3.20 GHz and 4.20 GHz) give it a per-core clock advantage, but this does not translate into a win in any recorded single-core benchmark. The Ryzen also uses DDR5 memory and a smaller 6 nm process, which are modern features, but these do not overcome the EPYC's raw performance lead.

For anyone choosing between these two, the decision hinges on the use case. If the workload is multi-threaded and performance is the priority, the EPYC 7543P is the only rational choice based on the benchmark data. If the priority is portability, power efficiency, and integrated graphics, the Ryzen 5 7235HS offers those features, but it will lag significantly in compute performance. The database shows no scenario where the Ryzen wins a benchmark against the EPYC. The EPYC 7543P is the definitive performance winner, while the Ryzen 5 7235HS is the efficiency-oriented option.