AMD EPYC 8534P vs Intel Xeon w9-3595X Comparison

Where Each One Wins

The benchmark data splits these two workstation/server processors into sharply defined territories. The Intel Xeon w9-3595X wins 14 of the 16 head-to-head comparisons, while the AMD EPYC 8534P takes only two. On the surface, that looks like a rout. Digging deeper, the two AMD victories point to a different workload profile, and the margin analysis reveals where each chip is genuinely competitive.

The Intel part dominates threaded rendering and simulation workloads. In Cinebench R15 multi-core, it posts 8497 against the EPYC's 6160, a 37.9% advantage. That pattern repeats across Cinebench R20 and R23 multi-core tests, with the same 37.9% delta each time. The Xeon also wins the PassMark multithread test by 38.5% (99576 vs 71900). The Xeon's single-core advantage is even more pronounced in relative terms: 1199 vs 869 in Cinebench R15 single-core (38% ahead), and 3720 vs 2441 in PassMark single-thread (52.4% ahead). This is not a marginal lead; it is a categorical gap in both single-thread and multi-thread throughput.

The AMD EPYC 8534P wins in integer math and encryption. In PassMark integer math, it scores 514526 against the Xeon's 473507, an 8% victory. In PassMark data encryption, the EPYC scores 121728 against 92249, a 24.2% advantage. These are specialized but real wins. The encryption result is particularly noteworthy because it is the largest percentage margin either chip achieves in any benchmark where it wins.

The Xeon's other wins vary in magnitude. In PassMark find prime numbers, the Xeon scores 580 vs 278, a 108.6% delta — the single largest margin on the board. PassMark physics shows a 59.3% delta (5842 vs 3667). Random string sorting favors the Xeon by 47.3% (190745 vs 129479). Floating point math goes to the Xeon by 30.9% (379008 vs 289443). Extended instructions favor the Xeon by 26.5% (142785 vs 112860). The closest contest is data compression, where the Xeon wins by just 2.2% (1831962 vs 1791742).

The overall average benchmark scores reflect this: the Xeon sits at 209881, the EPYC at 185092. The Xeon's nearest rival (AMD EPYC 9455P) is 3.7% ahead of it, while the EPYC 8534P's nearest rival (Intel Xeon 6740E) is 1.4% ahead of it. Both chips sit in the 98th–99th percentile of all CPUs, so neither is a slouch in absolute terms.

The Verdict

The data points to a clear split by workload type. If the job involves rendering, physics simulation, prime-number finding, or any task where raw single-thread speed and clock frequency matter, the Intel Xeon w9-3595X is the choice. Its 4.80 GHz boost clock versus the EPYC's 3.10 GHz boost clock aligns with the 38–52% single-core deltas observed. The Xeon also carries a higher TDP (385W vs 200W), which correlates with its higher sustained throughput in the Cinebench and PassMark multithread tests.

If the workload is integer-heavy mathematical processing or data encryption, the AMD EPYC 8534P holds the edge. Its 8% lead in integer math and 24.2% lead in encryption are not trivial, and for a server running cryptographic workloads or certain database operations, those margins could translate into meaningful throughput gains. The EPYC also offers more cores (64 vs 60) and threads (128 vs 120), though the Xeon's higher clock speeds compensate for that deficit in most tests.

There is also a market-segment distinction. The Xeon w9-3595X launched at $5889 (launch MSRP) and is built for the workstation socket Intel Socket 4677. The EPYC 8534P launched at $4950 (launch MSRP) and targets the EPYC 8004 series server platform on AMD Socket SP6. Both are active production parts. The Xeon is the higher-performing chip in aggregate, but the EPYC is not a poor alternative — it wins where it wins, and its average benchmark score of 185092 places it in the 98th percentile of all CPUs.

For a buyer optimizing for Cinebench-class rendering or general compute, the Xeon w9-3595X is the data-backed recommendation. For a buyer running encryption-heavy or integer-math-heavy server workloads, the EPYC 8534P is the data-backed alternative. Neither chip is a bad purchase given the benchmark evidence; they are simply tuned for different priorities.

Head-to-Head Benchmarks

The largest single win goes to the Xeon in PassMark find prime numbers: 580 vs 278, a 108.6% delta. This is a doubling of performance and suggests a fundamental advantage in this specific operation, likely tied to the Xeon's higher clock speed and architecture. The second-largest margin is PassMark physics at 59.3% (5842 vs 3667), followed by single-thread tests at 52.4% (3720 vs 2441 in both PassMark single-thread and singlethread entries).

The Cinebench family shows consistent 37.9–38% deltas across all six tests. The Xeon wins R15 multi-core (8497 vs 6160), R15 single-core (1199 vs 869), R20 multi-core (35407 vs 25668), R20 single-core (4998 vs 3623), R23 multi-core (84304 vs 61115), and R23 single-core (8628 vs 8628 — note the EPYC's R23 single-core score is 8628, which is coincidentally equal to the Xeon's R23 single-core score, though the Xeon wins on the other single-core tests). Actually, the head-to-head data lists the Xeon as the winner for R23 single-core, and the deltaPct is 37.9, matching the pattern.

PassMark multithread gives the Xeon its second-largest margin in the multithread category: 99576 vs 71900, a 38.5% delta. Random string sorting favors the Xeon by 47.3% (190745 vs 129479). Floating point math is a 30.9% Xeon win (379008 vs 289443). Extended instructions are a 26.5% Xeon win (142785 vs 112860). Data compression is the narrowest Xeon win at 2.2% (1831962 vs 1791742) — close enough that run-to-run variance could matter.

The AMD wins are both in PassMark tests. Data encryption: 121728 vs 92249, a 24.2% margin in AMD's favor. Integer math: 514526 vs 473507, an 8% margin. These are the only two tests where the EPYC comes out ahead, but they are in distinct workload categories (cryptography and integer processing) that are common in server environments.

FAQ

Q: Which processor has the higher multi-core benchmark score?

A: The Intel Xeon w9-3595X wins all three Cinebench multi-core tests by 37.9%: R15 (8497 vs 6160), R20 (35407 vs 25668), and R23 (84304 vs 61115). It also wins PassMark multithread by 38.5% (99576 vs 71900).

Q: Does the AMD EPYC 8534P win any benchmarks?

A: Yes. It wins PassMark data encryption (121728 vs 92249, a 24.2% margin) and PassMark integer math (514526 vs 473507, an 8% margin). These are its only two wins out of 16 head-to-head tests.

Q: How do the single-thread performances compare?

A: The Xeon leads in every single-thread test. Cinebench R15 single-core: 1199 vs 869 (38% ahead). Cinebench R20 single-core: 4998 vs 3623 (38% ahead). PassMark single-thread: 3720 vs 2441 (52.4% ahead).

Q: What is the difference in core and thread counts?

A: The AMD EPYC 8534P has 64 cores and 128 threads, while the Intel Xeon w9-3595X has 60 cores and 120 threads. Despite having fewer cores, the Xeon wins most multithreaded tests.

Q: What are the clock speed differences?

A: The Xeon has a 2.00 GHz base clock and 4.80 GHz boost clock. The EPYC has a 2.30 GHz base clock and 3.10 GHz boost clock. The Xeon's higher boost clock aligns with its single-thread benchmark leads.

Q: What is the TDP difference?

A: The Xeon w9-3595X has a TDP of 385W, while the EPYC 8534P has a TDP of 200W. The Xeon draws more power but delivers higher scores in the majority of benchmarks.

Architecture Differences

The two chips come from fundamentally different design philosophies. The Intel Xeon w9-3595X is built on a 10 nm process at Intel's foundry, using the Sapphire Rapids codename. It uses four dies totaling 4x 477 mm² of silicon. The AMD EPYC 8534P is built on a 5 nm process at TSMC, using the Zen 4c architecture with the Siena codename. Its four dies are much smaller at 4x 73 mm², and it packs 35,500 million transistors.

Cache layouts differ significantly. The Xeon allocates 80 KB of L1 per core, 2 MB of L2 per core, and 112.5 MB of L3 cache. The EPYC uses 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3. The EPYC has more total L3, but the Xeon has more L1 and L2 per core. This may explain why the Xeon excels in latency-sensitive single-thread tests.

Memory support is another differentiator. The Xeon uses an eight-channel DDR5 memory bus with 307.2 GB/s bandwidth. The EPYC uses a six-channel DDR5 bus with 230.4 GB/s bandwidth. Both support ECC memory. The Xeon has a memory bandwidth advantage of about 33%, which likely contributes to its wins in data compression and random string sorting.

PCIe connectivity also favors the Xeon: it offers 112 Gen 5 lanes (CPU only), while the EPYC offers 96 Gen 5 lanes (CPU only). Both are server/workstation parts with no integrated graphics on the Xeon; the EPYC lists no integrated graphics either.

The sockets are incompatible: Intel Socket 4677 for the Xeon, AMD Socket SP6 for the EPYC. The Xeon has an unlocked multiplier, while the EPYC does not. The Xeon's part number is SRN71, released 2024-08-23, while the EPYC's part number is 100-000000875, released 2023-09-17. The Xeon is the newer part by about a year.

The process node difference (10 nm Intel vs 5 nm TSMC) and die size difference (4x 477 mm² vs 4x 73 mm²) suggest the Xeon uses a more power-hungry but higher-clock design, while the EPYC uses a denser, more efficient layout. The TDP difference (385W vs 200W) reinforces this. The Xeon's 4.80 GHz boost clock versus the EPYC's 3.10 GHz boost clock is the most visible architectural consequence, and it shows up directly in the single-thread benchmark deltas of 38–52%.