AMD EPYC 7543P vs AMD EPYC 9254 Comparison

Head-to-Head Benchmarks

The recorded data shows a remarkably consistent margin across every Cinebench test between the AMD EPYC 7543P and the AMD EPYC 9254. In all six measured workloads, the EPYC 7543P wins, and the delta is exactly 4.1% in each case. This uniformity suggests the advantage is structural rather than workload-specific.

Starting with multi-core throughput, the EPYC 7543P posts a Cinebench R23 score of 56,683 against the EPYC 9254's 54,473. That 4.1% gap represents a lead of roughly 2,210 points. The pattern repeats in Cinebench R20, where the 7543P scores 23,806 versus 22,878, and in Cinebench R15, where the margin is 5,713 to 5,490. These are consistent, reproducible deltas across three generations of the Cinebench suite.

Single-core results tell the same story. In Cinebench R23 single-threaded, the 7543P scores 8,002, while the 9254 trails at 7,690. The R20 single-core test shows 3,360 versus 3,229, and R15 single-core lands at 806 versus 774. Again, the 4.1% gap holds exactly. This is notable because the 9254 has a higher boost clock (4.15 GHz versus 3.70 GHz) and a newer architecture, yet the older chip still edges it out in every single-threaded measurement in the database.

The average benchmark score reinforces the trend. The 7543P averages 16,395 across all recorded tests, placing it in the 70th percentile of all CPUs. The 9254 averages 15,756, which puts it in the 69th percentile. That is a narrow overall separation, but the head-to-head Cinebench data shows the 7543P is consistently ahead.

Looking at the nearest rivals for context, the 7543P sits just 0.3% above the AMD Ryzen 5 4600H (average score 16,341) and 0.5% above the Intel Core i7-1260U (16,320). The 9254, meanwhile, is essentially tied with the Intel Core i5-11400H (15,749, delta 0%) and sits 0.4% below the AMD EPYC 9354P (15,826). These surrounding data points suggest both chips occupy similar performance tiers in the broader database, despite the consistent 4.1% head-to-head edge for the 7543P.

One important observation: the 7543P achieves its wins with 32 cores and 64 threads, while the 9254 operates with 24 cores and 48 threads. The multi-core advantage is therefore partly a core-count story. But the single-core wins cannot be explained by core count, since those workloads use one thread. The database shows the 7543P's older Zen 3 design still delivers higher per-thread Cinebench performance than the Zen 4-based 9254, at least in these specific tests.

The Verdict

The data points to a clear but nuanced conclusion. The AMD EPYC 7543P wins all six head-to-head benchmarks, and it does so by the same 4.1% margin every time. For workloads that mirror Cinebench's rendering and compute patterns, the 7543P is the faster processor in this pairing.

Who should pick the EPYC 7543P? Anyone prioritizing raw Cinebench throughput, both multi-core and single-core. It also offers more cores (32 versus 24) and more threads (64 versus 48), which can matter in heavily parallel server workloads beyond the measured benchmarks. Its 70th percentile standing versus the 9254's 69th is a small but consistent overall edge.

Who should pick the EPYC 9254? The data does not support a performance-based argument for it, since it loses every recorded test. However, the 9254 brings a different platform story: DDR5 memory support, a twelve-channel memory bus, and PCIe Gen 5 connectivity, all of which are architectural features that the 7543P lacks. The 9254 also has a higher boost clock (4.15 GHz versus 3.70 GHz) and a lower TDP (200 versus 225). If the workload depends on memory bandwidth or newer I/O standards rather than Cinebench-style compute, the 9254's platform advantages could matter more than its benchmark deficit.

The decisive factor is workload type. For compute-bound rendering or simulation tasks where Cinebench is representative, the 7543P is the stronger choice according to the data. For memory-bandwidth-sensitive or PCIe Gen 5-dependent deployments, the 9254 offers capabilities that the 7543P cannot match, even though its Cinebench scores are lower. The 4.1% gap is real, but it is not large, and the platform differences are substantial.

FAQ

Q: Which processor wins the most head-to-head benchmarks?

A: The AMD EPYC 7543P wins all six recorded head-to-head Cinebench tests. The AMD EPYC 9254 wins none.

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

A: In Cinebench R23 multi-core, the 7543P scores 56,683 versus the 9254's 54,473, a 4.1% advantage. The same 4.1% delta appears in R20 (23,806 versus 22,878) and R15 (5,713 versus 5,490).

Q: Does the newer architecture help the EPYC 9254 in single-core tests?

A: No. Despite the 9254's Zen 4 architecture and higher boost clock of 4.15 GHz, the 7543P wins every single-core test by 4.1%. In Cinebench R23 single-core, the 7543P scores 8,002 against 7,690.

Q: How do their overall benchmark averages compare?

A: The 7543P has an average benchmark score of 16,395 and sits in the 70th percentile of all CPUs. The 9254 averages 15,756 and sits in the 69th percentile.

Q: Are there any tests where the EPYC 9254 is competitive?

A: The recorded data shows no wins for the 9254. Its closest head-to-head result is the 4.1% deficit in every test, which is consistent but not overwhelming.

Q: What platform features does the EPYC 9254 offer that the 7543P does not?

A: The 9254 supports DDR5 memory with a twelve-channel bus and 460.8 GB/s bandwidth, plus PCIe Gen 5 with 128 lanes. The 7543P uses DDR4 with an eight-channel bus, 204.8 GB/s bandwidth, and PCIe Gen 4.

Specification Differences

The two processors differ across nearly every core specification. The EPYC 7543P has 32 cores and 64 threads, while the EPYC 9254 has 24 cores and 48 threads. Base clocks are close: 2.80 GHz for the 7543P versus 2.90 GHz for the 9254. Boost clocks diverge more, with the 9254 reaching 4.15 GHz against the 7543P's 3.70 GHz.

Thermal design power also differs. The 7543P is rated at 225 watts, while the 9254 draws 200 watts. Both use AMD sockets, but different ones: the 7543P uses AMD Socket SP3, and the 9254 uses AMD Socket SP5.

Memory support is a major differentiator. The 7543P supports DDR4 with an eight-channel memory bus and 204.8 GB/s bandwidth. The 9254 supports DDR5 with a twelve-channel bus and 460.8 GB/s bandwidth. Both support ECC memory.

PCIe connectivity moves from Gen 4 on the 7543P to Gen 5 on the 9254, with both offering 128 lanes (CPU only). Neither processor has integrated graphics, and neither has an unlocked multiplier.

The 7543P carries a launch MSRP of $2730. The 9254 carries a launch MSRP of $2299.

Architecture Differences

The architectural gap is generational. The EPYC 7543P belongs to the EPYC 7003 series, codenamed Milan, built on Zen 3. The EPYC 9254 belongs to the EPYC 9004 series, codenamed Genoa, built on Zen 4.

Process technology differs significantly. The 7543P uses a 7 nm process from TSMC, while the 9254 uses a 5 nm process, also from TSMC. Transistor counts tell a mixed story: the 7543P packs 33,200 million transistors across 8 dies of 81 mm² each, while the 9254 uses 26,280 million transistors across 4 dies of 72 mm² each. The newer node enables a smaller die footprint for the 9254, though the 7543P has more total transistors.

Cache hierarchies also differ. Both have 64 KB of L1 cache per core and 512 KB of L2 per core on the 7543P, but the 9254 doubles L2 to 1 MB per core. Shared L3 cache goes the other direction: the 7543P has 256 MB shared, while the 9254 has 128 MB shared. Neither has 3D V-Cache.

Release timing reflects the generational split. The 7543P launched on 2021-03-14, while the 9254 launched on 2022-11-09. Both are listed as Active in production status and target the Server/Workstation market segment.

The architecture differences explain some of the benchmark results, but not all. The 9254's larger L2 cache and higher boost clock should benefit single-threaded performance, yet the 7543P still wins those tests. The 7543P's larger L3 cache and higher core count likely drive its multi-core advantage, but the consistent 4.1% margin across all tests suggests the two chips are closely matched in effective per-core throughput, at least within Cinebench's workload profile.