AMD EPYC 8534P vs Intel Xeon 676X Comparison

FAQ

Q: Which processor has the higher multi-core Cinebench R23 score?

A: The Intel Xeon 676X leads in multi-core Cinebench R23 with a score of 77447, which is 21.1% higher than the AMD EPYC 8534P's 61115.

Q: How do the two chips compare in data compression workloads?

A: The AMD EPYC 8534P wins decisively in PassMark data compression with a score of 1791742, outperforming the Intel Xeon 676X's 1355807 by 32.2%.

Q: What is the single-threaded PassMark score difference?

A: The Intel Xeon 676X achieves a PassMark single-thread score of 4015, which is 39.2% higher than the AMD EPYC 8534P's 2441.

Q: Which processor has more cores and threads?

A: The AMD EPYC 8534P provides 64 cores and 128 threads, while the Intel Xeon 676X provides 32 cores and 64 threads.

Q: What is the memory bandwidth specification for each?

A: The Intel Xeon 676X supports eight-channel DDR5 with 409.6 GB/s bandwidth, while the AMD EPYC 8534P supports six-channel DDR5 with 230.4 GB/s bandwidth.

Q: Which chip wins the majority of head-to-head benchmark tests?

A: The Intel Xeon 676X wins 11 of the 16 recorded head-to-head tests, while the AMD EPYC 8534P wins 5.

Architecture Differences

The AMD EPYC 8534P belongs to the EPYC 8004 series and uses the Zen 4c architecture, codenamed Siena. It is built on a 5 nm process at TSMC, with 35,500 million transistors spread across a 4x 73 mm² die configuration. The Intel Xeon 676X uses the Granite Rapids architecture, also on a 5 nm process but fabricated by Intel, with a 2x 598 mm² die size. Both are 5 nm parts, but the physical design philosophies differ substantially.

Core counts diverge sharply. The AMD part packs 64 cores and 128 threads, while the Intel part offers 32 cores and 64 threads. The EPYC 8534P has a base clock of 2.30 GHz and a boost clock of 3.10 GHz, whereas the Xeon 676X runs at a 2.80 GHz base and boosts to 4.90 GHz. Those clock advantages explain much of the Intel chip's single-thread dominance.

Cache hierarchies also differ. The EPYC 8534P provides 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3. The Xeon 676X has larger per-core L1 at 112 KB and L2 at 2 MB, plus 144 MB of shared L3. The Intel chip's larger L3 pool and higher per-core cache allocation support its higher frequency in latency-sensitive workloads.

Memory subsystems are asymmetric. The Xeon 676X uses an eight-channel DDR5 memory bus with 409.6 GB/s of bandwidth, while the EPYC 8534P uses a six-channel bus with 230.4 GB/s. PCIe lane counts also differ: the Intel part offers Gen 5 with 128 lanes (CPU only), versus 96 lanes on the AMD part.

Power and packaging differ too. The EPYC 8534P has a 200 W TDP and uses AMD Socket SP6. The Xeon 676X has a 275 W TDP and uses Intel Socket 4710. The Intel chip is multiplier-unlocked, whereas the AMD part is locked. The Intel processor integrates no graphics, and the AMD part lists no integrated graphics either. The AMD chip is from the Siena generation, released on 2023-09-17, while the Intel chip comes from the Xeon 600 Granite Rapids-WS generation, released on 2026-02-01.

The Verdict

The data points to two distinct usage profiles. The Intel Xeon 676X is the stronger choice for single-threaded and lightly threaded workloads. Its PassMark single-thread score of 4015 beats the EPYC 8534P's 2441 by 39.2%, and its Cinebench R15 single-core score of 1101 leads by 21.1%. Applications that depend on high clock speeds, such as physics simulation or prime number finding, show massive Intel advantages: the Xeon 676X scores 8281 in PassMark physics versus 3667, a 55.7% lead, and 738 in PassMark find prime numbers versus 278, a 62.3% lead.

For highly parallel, throughput-oriented tasks, the AMD EPYC 8534P is the better fit. Its 64 cores deliver a 45% advantage in PassMark integer math (514526 versus 354777) and an 80% advantage in data encryption (121728 versus 67638). Data compression also favors AMD by 32.2%. These workloads scale with core count, and the EPYC 8534P's double core count pays off.

The overall benchmark average tells a nuanced story. The EPYC 8534P has an average benchmark score of 185092 and sits at the 98th percentile. The Xeon 676X has a lower average of 158540 but also sits at the 98th percentile. The AMD chip's nearest rivals include the Intel Xeon 678X, which scores 4.3% higher, and the AMD EPYC 7763, which scores 2.9% lower. The Intel chip's rivals include the AMD EPYC 9375F, which scores 2.4% higher, and the Intel Xeon 6745P, which scores 2.4% lower.

The verdict is clear: choose the Intel Xeon 676X for latency-sensitive, frequency-bound server tasks; choose the AMD EPYC 8534P for massive parallelism in encryption, compression, and integer-heavy compute.

Specification Differences

The two processors differ in nearly every major specification category. The EPYC 8534P has 64 cores and 128 threads, while the Xeon 676X has 32 cores and 64 threads. Base clocks are 2.30 GHz for AMD and 2.80 GHz for Intel; boost clocks are 3.10 GHz and 4.90 GHz, respectively. TDP is 200 W for AMD and 275 W for Intel.

Cache configurations differ: AMD uses 64 KB L1 per core, 1 MB L2 per core, and 128 MB shared L3. Intel uses 112 KB L1 per core, 2 MB L2 per core, and 144 MB shared L3. Memory channels differ: AMD has six-channel DDR5 with 230.4 GB/s; Intel has eight-channel DDR5 with 409.6 GB/s. PCIe lanes are 96 on AMD and 128 on Intel, both Gen 5 CPU-only.

Process node is 5 nm for both, but foundry differs: TSMC for AMD, Intel for Intel. Die size is 4x 73 mm² for AMD versus 2x 598 mm² for Intel. Transistor count is recorded only for AMD at 35,500 million. Socket types are AMD Socket SP6 versus Intel Socket 4710. The EPYC 8534P is not multiplier-unlocked; the Xeon 676X is. Launch dates differ by over two years: 2023-09-17 versus 2026-02-01. The AMD part number is 100-000000875; the Intel part number is SA2CY.

Head-to-Head Benchmarks

The Intel Xeon 676X dominates the Cinebench suite across the board. In Cinebench R15 multi-core, Intel scores 7806 versus AMD's 6160, a 21.1% margin. The single-core R15 result is the same 21.1% gap: 1101 versus 869. Cinebench R20 follows the pattern, with Intel at 32527 multi-core and 4591 single-core, versus AMD at 25668 and 3623. Cinebench R23 multi-core gives Intel 77447 versus 61115, again a 21.1% lead. These consistent deltas suggest a uniform clock-frequency advantage across the entire Cinebench workload family.

PassMark multi-thread also favors Intel: 91115 versus 71900, a 21.1% difference. PassMark physics shows the largest Intel win: 8281 versus 3667, a 55.7% margin. PassMark find prime numbers is even more lopsided: 738 versus 278, a 62.3% gap. PassMark random string sorting gives Intel a narrower win at 137976 versus 129479, a 6.2% edge. PassMark single-thread and single-thread (duplicate test) both show Intel at 4015 versus AMD's 2441, a 39.2% lead.

The AMD EPYC 8534P takes the remaining five tests, and several by wide margins. PassMark data encryption is the biggest AMD win: 121728 versus 67638, an 80% advantage. PassMark integer math shows 514526 versus 354777, a 45% lead. PassMark data compression gives AMD 1791742 versus 1355807, a 32.2% margin. PassMark extended instructions is closer: 112860 versus 105231, a 7.2% win. PassMark floating point math is the narrowest of all: 289443 versus 283570, a 2.1% edge.

The overall win count is 11 for Intel and 5 for AMD. However, the magnitude of AMD's wins in encryption and integer math is substantial, while Intel's wins in physics and prime numbers are even larger in percentage terms. The benchmark record paints a picture of two complementary strengths: Intel's high-frequency cores excel in scalar and branch-heavy code, while AMD's 64-core array excels in data-parallel and cryptographic workloads.