AMD EPYC 9384X vs Intel Xeon w7-3565X Comparison

The AMD EPYC 9384X and Intel Xeon w7-3565X are both 32-core, 64-thread workstation processors, but benchmark results show they are optimized for entirely different workloads. The Intel Xeon w7-3565X wins the majority of head-to-head tests, 11 of 17, but the AMD EPYC 9384X delivers decisive victories in specific specialized tasks, particularly encryption and physics simulations. The data reveals that the Intel chip takes a narrow but consistent lead across Cinebench rendering and single-threaded performance, while the AMD chip’s 768 MB of L3 cache drives massive wins in memory-sensitive workloads. Overall, the average benchmark scores are nearly identical—the EPYC 9384X posts 120427 versus 118307 for the Xeon—a 1.8% difference according to the nearestRivals data, making the choice dependent on the specific application rather than raw overall performance.

Head-to-Head Benchmarks

The Intel Xeon w7-3565X dominates the rendering and single-threaded tests, but the AMD EPYC 9384X counters with overwhelming victories in several PassMark subtests. In Cinebench R23 multicore, the Xeon scores 60045 against 59215 for the EPYC, a 1.4% lead. This pattern repeats across every Cinebench test—R15, R20, and R23, both single and multicore—with the Xeon winning each by exactly 1.4%. The single-threaded PassMark test shows a larger gap: the Xeon scores 3407 versus 3015 for the EPYC, a 11.5% advantage. This indicates the Xeon’s higher boost clock of 4.80 GHz, compared to 3.90 GHz for the EPYC, translates directly into faster single-thread execution.

However, the AMD EPYC 9384X’s wins are far more dramatic in magnitude. The most striking result is in PassMark physics, where the EPYC scores 9332 against just 4254 for the Xeon—a 119.4% advantage. This is the largest delta in any test, and it points to the EPYC’s 768 MB of shared L3 cache being exceptionally effective for physics calculations that involve large data sets. Similarly, in data encryption, the EPYC scores 72631 versus 54676, a 32.8% lead, and in find prime numbers it scores 596 versus 398, a 49.7% advantage. These are not marginal wins; they are category-defining strengths.

The Xeon fights back in floating-point math, scoring 218720 against 174630, a 20.2% lead, and in extended instructions, where it scores 85856 versus 74363, a 13.4% advantage. The EPYC counters in integer math (297833 vs 279202, a 6.7% win), random string sorting (119440 vs 110848, a 7.8% win), and data compression (1119983 vs 1075602, a 4.1% win). The overall picture: the Xeon wins the Cinebench suite and single-threaded tests, while the EPYC wins the specialized PassMark workloads by larger margins. This is reflected in the win count—the Xeon takes 11 tests to the EPYC’s 6—but the EPYC’s wins are often by double-digit percentages, whereas the Xeon’s Cinebench wins are uniformly narrow at 1.4%.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD EPYC 9384X has a higher average benchmark score of 120427, compared to 118307 for the Intel Xeon w7-3565X, a 1.8% difference per the nearestRivals data.

Q: How much faster is the AMD EPYC 9384X in physics simulations?

A: The EPYC 9384X scores 9332 in PassMark physics, which is 119.4% higher than the Xeon w7-3565X’s score of 4254.

Q: What is the single-threaded performance gap?

A: The Intel Xeon w7-3565X scores 3407 in PassMark single-thread, which is 11.5% higher than the EPYC 9384X’s 3015. In Cinebench R23 single-core, the Xeon leads 8477 versus 8359, a 1.4% margin.

Q: Which processor has more L3 cache?

A: The AMD EPYC 9384X has 768 MB of shared L3 cache, while the Intel Xeon w7-3565X has 82.5 MB. This difference is the likely driver behind the EPYC’s large wins in physics and encryption tests.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 9384X and the Intel Xeon w7-3565X support ECC memory.

Q: What are the memory bandwidth specifications for each?

A: The AMD EPYC 9384X has a twelve-channel memory bus with 460.8 GB/s bandwidth, while the Intel Xeon w7-3565X has an eight-channel bus with 307.2 GB/s bandwidth.

Architecture Differences

The fundamental architectural divergence is in cache hierarchy and process node. The AMD EPYC 9384X uses the Zen 4 architecture on a 5 nm process from TSMC, with a die size of 8x 72 mm² and 90,160 million transistors. Its defining feature is the 768 MB shared L3 cache, which is achieved through the Genoa-X codename design that stacks additional cache on top of the standard Zen 4 silicon. This massive cache is the reason for the EPYC’s enormous leads in physics (119.4%) and encryption (32.8%), as those workloads benefit from keeping large data sets on-chip.

The Intel Xeon w7-3565X, codenamed Sapphire Rapids, uses a 10 nm process from Intel with a die size of 4x 477 mm². It has 82.5 MB of L3 cache, which is significantly smaller than the EPYC’s 768 MB, but it compensates with a higher boost clock of 4.80 GHz versus 3.90 GHz. The Xeon also has larger L1 and L2 caches per core: 80 KB and 2 MB respectively, versus 64 KB and 1 MB for the EPYC. This per-core cache advantage, combined with the higher clock speed, explains the Xeon’s consistent 11.5% lead in single-threaded PassMark and its 1.4% edge across all Cinebench tests.

The memory controllers also differ. The EPYC 9384X supports twelve-channel DDR5 memory with 460.8 GB/s bandwidth, while the Xeon w7-3565X supports eight-channel DDR5 with 307.2 GB/s bandwidth. This 33% higher memory bandwidth for the AMD chip likely complements its large cache, further aiding memory-intensive workloads. Both processors use PCIe Gen 5, but the EPYC offers 128 lanes (CPU only) versus 112 lanes for the Xeon.

Specification Differences

The two processors differ in several key specifications. The base clock is 3.10 GHz for the AMD EPYC 9384X versus 2.50 GHz for the Intel Xeon w7-3565X, but the boost clock reverses this: 3.90 GHz for AMD versus 4.80 GHz for Intel. The TDP is 320 W for the EPYC and 335 W for the Xeon. The sockets are incompatible: the EPYC uses AMD Socket SP5, while the Xeon uses Intel Socket 4677.

The AMD chip is built on a 5 nm process, while the Intel chip uses a 10 nm process. The EPYC has a smaller die size of 8x 72 mm², while the Xeon has a larger 4x 477 mm². The L1 cache per core is 64 KB for AMD versus 80 KB for Intel, and the L2 cache per core is 1 MB versus 2 MB. The L3 cache is 768 MB shared for AMD versus 82.5 MB for Intel. Memory channels differ: twelve for AMD versus eight for Intel, with bandwidth at 460.8 GB/s versus 307.2 GB/s. PCIe lanes are 128 for AMD versus 112 for Intel.

The Intel Xeon w7-3565X has an unlocked multiplier, while the AMD EPYC 9384X does not. The release dates are notable: the EPYC launched on 2023-06-12, while the Xeon launched over a year later on 2024-08-23. The launch MSRP for the EPYC 9384X is $5529, while the Xeon w7-3565X has a launch MSRP of $2689. The Intel part number is SRN73.

Where Each One Wins

The AMD EPYC 9384X is the clear choice for workloads that stress data movement and large working sets. Its 119.4% lead in PassMark physics makes it the pick for simulation and scientific computing that involves complex physical models. The 32.8% lead in data encryption indicates a strong advantage for security-focused applications, secure communications, and any workload requiring heavy cryptographic operations. The 49.7% lead in prime number finding and the 6.7% lead in integer math suggest strength in computational number theory and general integer processing. The 7.8% win in random string sorting and 4.1% win in data compression point to advantages in database operations, data analytics, and file compression tasks.

The Intel Xeon w7-3565X wins in rendering and general-purpose productivity. Its 1.4% lead across all Cinebench R15, R20, and R23 tests, both single and multicore, makes it the better choice for 3D rendering, video encoding, and other content creation tasks that use these benchmarks as proxies. The 11.5% lead in single-threaded PassMark and the 20.2% lead in floating-point math indicate superiority in applications that rely on high clock speeds and floating-point calculations, such as financial modeling, certain scientific simulations, and legacy single-threaded software. The 13.4% lead in extended instructions shows an advantage for workloads using advanced CPU instruction sets, such as AI inference or specialized vector processing.

The Xeon also wins the PassMark multithread test (70642 versus 69665, a 1.4% lead) and all Cinebench multicore tests, meaning that even in multi-threaded rendering, the Xeon edges out the EPYC.

The Verdict

The data shows two equal overall performers with opposite strengths. The AMD EPYC 9384X and Intel Xeon w7-3565X have nearly identical average benchmark scores—120427 versus 118307—and both sit in the 97th percentile of all CPUs. The choice comes down to workload type, not overall capability.

Pick the AMD EPYC 9384X for physics simulations, encryption-heavy workloads, data compression, and integer processing. The 119.4% physics win and 32.8% encryption win are not marginal—they are game-changing for those specific tasks. The 768 MB L3 cache and twelve-channel memory give it a structural advantage in any application that cannot fit its working set into a smaller cache.

Pick the Intel Xeon w7-3565X for Cinebench-style rendering, single-threaded applications, and floating-point intensive tasks. The consistent 1.4% win across all Cinebench tests, plus the 20.2% floating-point lead and 11.5% single-thread advantage, make it the safer choice for general workstation use where rendering and single-thread responsiveness are priorities. The unlocked multiplier also offers overclocking potential that the EPYC lacks.

The data does not name one processor as the universal winner. It identifies the AMD EPYC 9384X as a specialist with extraordinary cache-driven performance in niche workloads, and the Intel Xeon w7-3565X as a generalist with strong, consistent performance across a broader range of standard benchmarks. Choose based on the specific benchmark that matters most to your workflow.