AMD EPYC 9354 vs Intel Xeon w7-3565X Comparison

The AMD EPYC 9354 and Intel Xeon w7-3565X are both 32-core, 64-thread processors aimed at demanding server and workstation loads, but the benchmark data reveals two very different performance personalities. The EPYC 9354, built on AMD’s Zen 4 architecture, takes a commanding lead in the majority of compute-heavy tests, while the Xeon w7-3565X, with its much higher boost clock, fights back in specific math workloads and single-threaded operations. The data shows a clear split: the AMD part dominates in most parallel and data-processing tasks, while the Intel part wins in floating-point math and raw single-core speed.

Head-to-Head Benchmarks

The most decisive victory for the AMD EPYC 9354 comes in the PassMark find prime numbers test, where it scores 934 against the Xeon’s 398, a massive 134.7% advantage. This is not a small margin; it indicates a fundamental difference in how the two architectures handle integer-heavy, branch-dense workloads. Similarly, the EPYC 9354 wins the PassMark physics test with a score of 9281 versus 4254, a 118.2% lead that suggests AMD’s chip is far more efficient at running simulation and physics-based calculations. These are the kinds of workloads where the EPYC 9354 pulls so far ahead that the Xeon w7-3565X would need a completely different workload profile to compete.

The EPYC 9354 also shows a strong edge in data encryption, scoring 71400 against the Xeon’s 54676, a 30.6% win. This is a significant margin for a security-sensitive task, and the data implies that AMD’s integration of encryption instructions is more effective. The gap narrows considerably in other areas: the EPYC 9354 wins random string sorting by 26.9% (140690 vs 110848) and integer math by 9.2% (304828 vs 279202). In the Cinebench suite, the AMD part is consistently ahead by exactly 2.8% across all R15, R20, and R23 tests, both single-core and multi-core. For example, the EPYC 9354 scores 61722 in Cinebench R23 multi-core versus 60045 for the Xeon, and 8713 versus 8477 in single-core. This uniform 2.8% delta suggests a stable architectural advantage rather than a workload-specific quirk.

The Intel Xeon w7-3565X does not go down without a fight. Its biggest win is in PassMark single-thread, where it scores 3407 against the EPYC’s 2601, a 23.7% advantage. This is a direct consequence of its 4.80 GHz boost clock versus the EPYC’s 3.80 GHz, and it shows up clearly in single-threaded tasks. The Xeon also wins floating-point math, scoring 218720 versus 188894, a 13.6% lead. This is notable because it means the Intel part is better suited for scientific computing and 3D rendering that relies heavily on FPU performance. The third and final win for Intel is also in floating-point math, which is the same test, so the Xeon’s wins are concentrated in two categories: single-thread speed and FP-heavy math. Out of 17 head-to-head benchmarks, the EPYC 9354 wins 14, while the Xeon claims only 3.

The Verdict

The data points to a clear choice for most users: the AMD EPYC 9354 is the superior processor for the vast majority of workloads. Its 14 wins out of 17 benchmarks include all Cinebench tests, all data compression and encryption tests, and all integer and physics-based PassMark tests. The EPYC 9354 also holds a higher average benchmark score of 126810 compared to the Xeon’s 118307, a difference that places it in the same 97th percentile of all CPUs but with a more robust overall profile. The Xeon’s 23.7% single-thread win is impressive, but it is an outlier in a dataset where the EPYC 9354 leads by 2.8% to 134.7% in everything else.

For a user whose primary application is single-threaded performance or heavy floating-point math, the Intel Xeon w7-3565X has a genuine argument. The 13.6% lead in floating-point math is substantial, and the 23.7% single-thread advantage means that legacy software or lightly threaded applications will run noticeably faster on the Intel chip. However, for any multi-threaded, data-centric, or encryption-heavy workload, the EPYC 9354 is the better choice. The data suggests that the EPYC 9354 is the more balanced and generally faster processor, while the Xeon w7-3565X is a specialist that excels in narrow but important niches.

FAQ

Q: Which processor has the higher overall average benchmark score?

A: The AMD EPYC 9354 has an average benchmark score of 126810, while the Intel Xeon w7-3565X scores 118307, giving the AMD part a lead of about 7.2%.

Q: How big is the single-thread performance gap between the two?

A: The Intel Xeon w7-3565X wins the PassMark single-thread test with a score of 3407 versus 2601 for the AMD EPYC 9354, a 23.7% advantage for Intel.

Q: What is the largest single benchmark margin in the head-to-head results?

A: The AMD EPYC 9354 wins the PassMark find prime numbers test by 134.7%, scoring 934 versus 398 for the Intel Xeon w7-3565X.

Q: Does the Intel chip win any multi-core benchmarks?

A: No. The Intel Xeon w7-3565X wins only the PassMark single-thread and floating-point math tests. The AMD EPYC 9354 wins all Cinebench multi-core and single-core tests.

Q: Are both processors in the same performance percentile?

A: Yes, both the AMD EPYC 9354 and the Intel Xeon w7-3565X are in the 97th percentile of all CPUs, though the EPYC has a higher average score.

Q: Which processor has a higher boost clock?

A: The Intel Xeon w7-3565X has a boost clock of 4.80 GHz, which is higher than the AMD EPYC 9354’s 3.80 GHz, correlating with its single-thread win.

Specification Differences

The two processors differ in several key specifications beyond raw performance. The AMD EPYC 9354 has a base clock of 3.25 GHz and a boost clock of 3.80 GHz, while the Intel Xeon w7-3565X has a lower base clock of 2.50 GHz but a much higher boost clock of 4.80 GHz. The thermal design power (TDP) also differs, with the EPYC 9354 rated at 280 W and the Xeon w7-3565X at 335 W, indicating the Intel part draws more power under load. The sockets are incompatible: the AMD chip uses AMD Socket SP5, while the Intel chip uses Intel Socket 4677. The memory bus is another difference, with the EPYC 9354 supporting twelve-channel memory and the Xeon w7-3565X supporting eight-channel, which translates to a memory bandwidth of 460.8 GB/s for AMD versus 307.2 GB/s for Intel. The PCIe lanes also differ, with the EPYC 9354 offering 128 Gen 5 lanes (CPU only) versus 112 for the Xeon. The Intel part is multiplier unlocked, while the AMD part is not, and the launch MSRP is $2689 for the Xeon and $3420 for the EPYC 9354. The release dates are also distinct: the EPYC 9354 launched in November 2022, while the Xeon w7-3565X launched in August 2024.

Architecture Differences

Architecturally, these are fundamentally different designs. The AMD EPYC 9354 is built on a 5 nm process at TSMC, while the Intel Xeon w7-3565X uses a 10 nm process at Intel. The AMD chip is based on the Zen 4 architecture with the codename Genoa, while the Intel chip uses the Sapphire Rapids codename. The transistor count and die size reflect this difference: the EPYC 9354 has 52,560 million transistors across eight 72 mm² dies, whereas the Xeon w7-3565X uses four 477 mm² dies. The cache structures are also very different. The EPYC 9354 has a shared L3 cache of 256 MB, while the Xeon has a smaller 82.5 MB L3 cache. Per-core L1 and L2 caches also differ: the EPYC has 64 KB L1 and 1 MB L2 per core, while the Xeon has 80 KB L1 and 2 MB L2 per core. Both support DDR5 memory and ECC, but the AMD part has a twelve-channel memory bus versus eight-channel for Intel. The AMD chip lacks integrated graphics, while the Intel part lists "N/A" for integrated graphics, and both support PCIe Gen 5, but with different lane counts.

Where Each One Wins

The AMD EPYC 9354 is the clear winner in data-centric and multi-threaded workloads. Its 30.6% lead in data encryption makes it the better choice for security, VPN gateways, and encrypted storage applications. The 134.7% win in prime number finding and 118.2% win in physics suggest it is superior for scientific computing, simulations, and any integer-heavy processing. The 8.6% win in data compression and 26.9% win in random string sorting point to advantages in database workloads, file compression, and data analytics. The EPYC 9354 also wins all Cinebench tests, meaning it is better for 3D rendering and video encoding that scale across many cores. Its higher memory bandwidth of 460.8 GB/s and twelve-channel support further solidify its position for memory-intensive tasks.

The Intel Xeon w7-3565X wins where speed per core matters more than core count. The 23.7% single-thread lead makes it the choice for older software, lightly threaded applications, or any workload that cannot take advantage of many cores. The 13.6% win in floating-point math is crucial for financial modeling, certain scientific simulations, and audio processing, where FPU performance is king. The Xeon’s higher boost clock of 4.80 GHz and larger per-core L2 cache of 2 MB support these wins. However, its lower memory bandwidth and smaller L3 cache mean it struggles in the multi-threaded and data-heavy tests where the EPYC 9354 excels. For a user who prioritizes single-thread responsiveness and FP-heavy math, the Xeon is the pick; for everything else, the data overwhelmingly favors the EPYC 9354.