AMD EPYC 8534P vs Intel Xeon 6745P Comparison

The Verdict

The data clearly splits these two server CPUs into distinct roles. The Intel Xeon 6745P is the outright performance leader in most measured tests, winning 11 of 16 head-to-head benchmarks. Its advantage is most pronounced in single-threaded work and physics simulation, where it leads by 29.2% and 40.3%, respectively. However, the AMD EPYC 8534P dominates in specific data-centric workloads, winning 5 of 16 tests with massive margins in integer math (52.7%) and data encryption (82.6%).

For general-purpose compute, rendering, and high-frequency single-thread tasks, the Intel Xeon 6745P is the clear choice from the benchmark data. It delivers a 14.6% advantage across all Cinebench R15, R20, and R23 multicore and singlecore tests, and it posts a 14.6% higher PassMark multithread score. Its 4.30 GHz boost clock and 3.10 GHz base clock, both higher than the AMD parts, drive these wins.

For database compression, encryption, and integer-heavy arithmetic, the AMD EPYC 8534P is the superior option. Its 64 cores and 128 threads provide a 32.4% win in data compression and an 82.6% win in data encryption. The floating-point math test also favors AMD by 8.2%. If your workload is dominated by these operations, the AMD part is the pick.

The average benchmark scores place the AMD EPYC 8534P at 185,092, which is 16.3% higher than the Intel Xeon 6745P's 154,858. This discrepancy is driven by the AMD part's massive wins in encryption and compression. However, the Xeon 6745P sits at the 98th percentile of all CPUs, matching the AMD part's percentile ranking. Both are top-tier processors; the choice depends entirely on the workload mix.

Architecture Differences

The AMD EPYC 8534P uses the Zen 4c architecture on the Siena codename, built on a 5 nm process at TSMC. It packs 64 cores and 128 threads into a 4x 73 mm² die configuration with 35,500 million transistors. The Intel Xeon 6745P uses Granite Rapids architecture, also on a 5 nm process but fabricated by Intel, with a 2x 598 mm² die size. It has 32 cores and 64 threads, half the core count of the AMD part.

Cache configurations differ substantially. The AMD part provides 64 KB L1 and 1 MB L2 per core, with 128 MB shared L3. The Intel part offers 112 KB L1 and 2 MB L2 per core, with a much larger 336 MB shared L3. This larger L3 cache likely contributes to the Intel part's single-thread and physics performance.

Memory architecture also diverges. The AMD EPYC 8534P uses six-channel DDR5 with 230.4 GB/s bandwidth. The Intel Xeon 6745P uses eight-channel DDR5 with 409.6 GB/s bandwidth, nearly double the AMD part's memory throughput. Both support ECC memory. PCIe lanes favor AMD: 96 Gen 5 lanes versus Intel's 88 Gen 5 lanes.

The sockets differ: AMD uses Socket SP6, while Intel uses Socket 4710. Both parts have locked multipliers. The AMD part was released in September 2023, while the Intel part came later in February 2025. Both are listed as Active in production status.

Where Each One Wins

The Intel Xeon 6745P wins in every Cinebench test, both single and multicore, with a consistent 14.6% margin. This indicates a general compute advantage for rendering and CPU-intensive tasks. The PassMark multithread test also goes to Intel by 14.6%. Physics simulation is a standout win for Intel, with a 40.3% advantage (6144 vs 3667). Prime number finding shows a 59.2% Intel advantage (681 vs 278), suggesting strong integer and branch-prediction performance. Single-thread performance is firmly Intel territory with a 29.2% lead (3450 vs 2441).

The AMD EPYC 8534P wins decisively in data encryption, scoring 121,728 versus Intel's 66,665, an 82.6% margin. Data compression shows a 32.4% AMD advantage (1,791,742 vs 1,352,801). Integer math favors AMD by 52.7% (514,526 vs 336,926). Floating-point math is also an AMD win, 289,443 vs 267,438, an 8.2% margin. Extended instructions slightly favor AMD by 4.2% (112,860 vs 108,326).

These results point to a clear split: Intel wins latency-sensitive, single-threaded, and physics-heavy tasks; AMD wins throughput-oriented, data-dense operations that leverage its higher core count and thread count.

FAQ

Q: Which CPU is faster in single-threaded performance?

A: The Intel Xeon 6745P is faster. It scores 3450 in PassMark single-thread tests versus 2441 for the AMD EPYC 8534P, a 29.2% advantage. Cinebench R23 singlecore also goes to Intel, 8628 vs 8628? No, the data shows Intel at 1018 in R15 singlecore vs AMD's 869, a 14.6% gap.

Q: Does the AMD EPYC 8534P have more cores?

A: Yes. The AMD part has 64 cores and 128 threads, while the Intel Xeon 6745P has 32 cores and 64 threads. This core count advantage drives AMD's wins in encryption and integer math.

Q: Which CPU has higher memory bandwidth?

A: The Intel Xeon 6745P has higher memory bandwidth at 409.6 GB/s, compared to the AMD EPYC 8534P's 230.4 GB/s. Intel also uses eight memory channels versus AMD's six.

Q: What is the average benchmark score difference?

A: The AMD EPYC 8534P has an average benchmark score of 185,092, which is 19.5% higher than the Intel Xeon 6745P's 154,858. However, both CPUs rank at the 98th percentile of all CPUs.

Q: Which CPU wins in Cinebench R23 multicore?

A: The Intel Xeon 6745P wins with a score of 71,578 versus the AMD EPYC 8534P's 61,115, a 14.6% margin. This is consistent across all Cinebench versions.

Q: How do the CPUs compare in data encryption?

A: The AMD EPYC 8534P is decisively better, scoring 121,728 versus the Intel Xeon 6745P's 66,665. That is an 82.6% advantage for AMD in the PassMark data encryption test.

Head-to-Head Benchmarks

The most lopsided result in the entire comparison is PassMark data encryption, where the AMD EPYC 8534P scores 121,728 against the Intel Xeon 6745P's 66,665. This 82.6% margin is the largest of any test. Similarly, integer math shows a 52.7% AMD advantage: 514,526 vs 336,926. Data compression also favors AMD by 32.4% (1,791,742 vs 1,352,801). These three wins alone account for the AMD part's higher average score.

The Intel Xeon 6745P counters with strong wins in prime number finding, scoring 681 versus AMD's 278, a 59.2% margin. Physics simulation shows a 40.3% Intel advantage (6144 vs 3667). Single-thread performance is firmly Intel's, with 3450 vs 2441, a 29.2% margin. The Cinebench suite, including R15, R20, and R23, all show a consistent 14.6% Intel lead in both single and multicore tests. PassMark multithread also goes to Intel by 14.6% (84,210 vs 71,900).

The remaining tests are closer. Floating-point math favors AMD by 8.2% (289,443 vs 267,438). Extended instructions show a modest 4.2% AMD advantage (112,860 vs 108,326). Random string sorting goes to Intel by a slim 3% margin (133,528 vs 129,479). These tighter results suggest that for mixed workloads, the difference narrows, but the Intel part still holds an edge in sorting tasks.

Specification Differences

The core and thread counts differ significantly: AMD offers 64 cores and 128 threads, while Intel offers 32 cores and 64 threads. Clock speeds favor Intel, with a 3.10 GHz base and 4.30 GHz boost versus AMD's 2.30 GHz base and 3.10 GHz boost. Thermal design power also differs: Intel is rated at 300 W, while AMD is rated at 200 W.

Cache hierarchies are distinct. AMD provides 64 KB L1 and 1 MB L2 per core, with 128 MB shared L3. Intel provides 112 KB L1 and 2 MB L2 per core, with 336 MB shared L3. Memory bandwidth is another key difference: Intel's eight-channel DDR5 supports 409.6 GB/s, while AMD's six-channel DDR5 supports 230.4 GB/s.

PCIe lanes are close but favor AMD: 96 Gen 5 lanes versus Intel's 88 Gen 5 lanes. The sockets are incompatible: AMD uses Socket SP6, Intel uses Socket 4710. Die size differs substantially, with Intel's 2x 598 mm² being much larger than AMD's 4x 73 mm². The process nodes are both 5 nm, but AMD uses TSMC while Intel uses its own fabs. The AMD part integrates no graphics, and the Intel part lists N/A for integrated graphics. Both are server/workstation parts with ECC support and are actively in production.