AMD EPYC 4565P vs Intel Xeon 6731P Comparison

The AMD EPYC 4565P and Intel Xeon 6731P occupy the same performance percentile in the database, both ranking in the 96th percentile among all CPUs. However, their average benchmark scores tell different stories: the AMD part averages 95,764 points, while the Intel part averages 87,756 points. This 8-point gap in average score is the result of fundamentally different design philosophies, with the AMD chip favoring high clock speeds and the Intel chip favoring core count and memory bandwidth. The recorded data shows that these processors are not interchangeable; each has clear domains where it dominates.

Where Each One Wins

The AMD EPYC 4565P wins 12 of the 17 head-to-head benchmark comparisons, establishing itself as the overall performance leader in most measured workloads. Its victories are concentrated in rendering, encryption, integer math, and single-threaded tasks. The Cinebench suite is a clean sweep for AMD, with consistent 21.2% to 21.3% advantages across R15, R20, and R23 in both single-core and multi-core tests. The largest single win for AMD comes in PassMark single-thread, where it scores 4,712 against Intel's 2,107, a 123.6% advantage. This is not a marginal difference; the AMD processor is more than twice as fast in this metric.

The AMD part also wins the PassMark multithread test at 63,474 versus 52,790, a 20.2% lead, and the integer math test at 250,683 versus 198,761, a 26.1% lead. Data compression and encryption also favor AMD, with 7.7% and 20.4% advantages respectively. For workloads that rely on high-frequency execution, branch prediction, or integer arithmetic, the AMD EPYC 4565P is the clear choice.

The Intel Xeon 6731P wins 5 benchmarks, and its victories are telling about its architectural strengths. The most dramatic Intel win is in PassMark physics, where it scores 7,105 against AMD's 2,976, a 58.1% advantage. This test likely relies on the Intel part's substantially higher core count and memory bandwidth. Intel also wins the find prime numbers test at 541 versus 294, a 45.7% lead, and random string sorting at 88,019 versus 81,318, a 7.6% lead. Extended instructions and floating point math go to Intel by 2% and 3.4% respectively. These are workloads that scale with raw core count, memory throughput, or specific instruction set extensions, areas where the Intel chip has a structural advantage.

The data suggests a clear use-case split: for rendering, encryption, general multithreaded server tasks, and any single-threaded responsiveness, the AMD EPYC 4565P is superior. For physics simulation, prime number searches, string sorting, and floating-point-heavy scientific workloads, the Intel Xeon 6731P holds the edge.

Architecture Differences

The two processors are built on completely different platforms. The AMD EPYC 4565P uses the Zen 5 architecture, codenamed Grado, on a 4 nm TSMC process. It is part of the EPYC 4005 series and fits in AMD Socket AM5. The Intel Xeon 6731P uses Granite Rapids architecture, on Intel's 5 nm process, and fits in Intel Socket 4710. The manufacturing differences are significant: AMD's process node is more advanced, and the chip uses a chiplet design with two dies each measuring 70.6 mm², totaling 16,630 million transistors. Intel uses a monolithic die of 598 mm², with no transistor count recorded in the database.

Core counts differ sharply. The Intel part has 32 cores and 64 threads, exactly double the AMD's 16 cores and 32 threads. Despite having half the cores, AMD achieves higher scores in most multithreaded benchmarks, which indicates the Zen 5 cores are far more efficient per thread. The AMD base clock is 4.30 GHz with a boost of 5.70 GHz, while Intel runs at 2.50 GHz base and 4.10 GHz boost. This clock advantage explains the massive single-thread gap.

Cache hierarchies also differ. AMD provides 80 KB of L1 cache per core, 1 MB of L2 per core, and 64 MB of shared L3. Intel provides more per-core cache at 112 KB L1 and 2 MB L2, plus a much larger 144 MB shared L3. The larger Intel L3 cache helps with data-heavy workloads, but the clock speed deficit limits its benefit in latency-sensitive tasks.

Memory architecture is a major differentiator. Both support DDR5 and ECC memory, but AMD uses a dual-channel memory bus with 89.6 GB/s bandwidth, while Intel uses an eight-channel bus with 409.6 GB/s bandwidth. Intel's memory bandwidth is over 4.5 times higher, which directly contributes to its wins in physics and floating point tests. AMD compensates with a higher clock speed and more efficient cores. PCIe connectivity also differs: AMD provides 24 Gen 5 lanes, Intel provides 136 Gen 5 lanes. For multi-GPU or high-density storage systems, Intel offers far more expansion headroom.

The AMD part includes integrated Radeon Graphics, while the Intel part has no integrated graphics. Both processors have locked multipliers and are active in production. The AMD part was released later, in May 2025, while Intel launched in February 2025.

FAQ

Q: Which processor has higher single-thread performance?

A: The AMD EPYC 4565P is dramatically faster in single-threaded workloads. In PassMark single-thread, it scores 4,712 versus Intel's 2,107, a 123.6% advantage. In Cinebench R23 single-core, AMD scores 7,680 versus 6,334, a 21.3% lead.

Q: How do the core counts compare, and does Intel's higher core count translate to wins?

A: Intel has 32 cores and 64 threads, double the AMD's 16 cores and 32 threads. Despite this, AMD wins the PassMark multithread test at 63,474 versus 52,790. Intel's core advantage only shows in specific workloads like physics (7,105 versus 2,976) and prime number finding (541 versus 294).

Q: What is the memory bandwidth difference?

A: Intel offers eight-channel DDR5 memory with 409.6 GB/s bandwidth, while AMD offers dual-channel DDR5 with 89.6 GB/s. Intel's bandwidth is significantly higher, which helps in memory-intensive floating point and physics workloads.

Q: Which processor is better for rendering workloads?

A: The AMD EPYC 4565P wins all Cinebench tests. In Cinebench R23 multi-core, it scores 54,405 versus 44,871, a 21.2% advantage. The R15 and R20 multi-core tests show the same 21.3% margin.

Q: Are these processors in the same performance tier?

A: Yes, both are in the 96th percentile of all CPUs. However, the average benchmark scores differ: AMD averages 95,764 points, while Intel averages 87,756 points, a difference that reflects AMD's broader performance lead across most tested workloads.

Q: What are the power requirements?

A: The AMD EPYC 4565P has a TDP of 170 watts, while the Intel Xeon 6731P has a TDP of 245 watts. This difference is notable given that AMD delivers higher performance in most benchmarks with lower power consumption.

Specification Differences

The two processors differ in nearly every fundamental specification. The AMD EPYC 4565P uses 16 cores and 32 threads, while the Intel Xeon 6731P uses 32 cores and 64 threads. Clock speeds are starkly different: AMD runs at 4.30 GHz base and 5.70 GHz boost, while Intel runs at 2.50 GHz base and 4.10 GHz boost. The TDP is 170 watts for AMD and 245 watts for Intel.

The process nodes reflect different foundry choices: AMD uses TSMC's 4 nm process, Intel uses its own 5 nm process. AMD's die is composed of two 70.6 mm² chiplets with 16,630 million transistors, while Intel uses a single 598 mm² die. Cache configurations differ in both size and organization: AMD has 80 KB L1, 1 MB L2, and 64 MB L3 per chip, while Intel has 112 KB L1, 2 MB L2, and 144 MB L3 per chip.

Memory support is dual-channel for AMD with 89.6 GB/s bandwidth, versus eight-channel for Intel with 409.6 GB/s. Both support DDR5 and ECC. PCIe lanes differ substantially: AMD provides 24 Gen 5 lanes, Intel provides 136 Gen 5 lanes.

AMD includes integrated Radeon Graphics; Intel has no integrated graphics. The sockets are incompatible: AMD uses Socket AM5, Intel uses Socket 4710. The release dates differ, with Intel launching in February 2025 and AMD in May 2025. The launch MSRP for AMD is $589, while Intel's is $2700, a difference that is notable given AMD's performance lead in most benchmarks. Neither processor has an unlocked multiplier.

Head-to-Head Benchmarks

The Cinebench suite provides the clearest picture of overall performance. In Cinebench R15 multi-core, AMD scores 5,484 against Intel's 4,522, a 21.3% advantage. The single-core R15 test shows the same margin: 774 versus 638. Moving to Cinebench R20, AMD scores 22,850 multi-core and 3,225 single-core, versus Intel's 18,845 and 2,660, again a 21.3% and 21.2% margin. In Cinebench R23, AMD scores 54,405 multi-core and 7,680 single-core, against Intel's 44,871 and 6,334, with 21.2% and 21.3% leads. These results indicate that AMD's per-core performance advantage is consistent across all rendering generations.

PassMark tests reveal a more nuanced picture. The single-thread test is AMD's biggest win: 4,712 versus 2,107, a 123.6% lead. This is the largest delta in the entire comparison and highlights the clock speed advantage. The multithread test shows AMD at 63,474 versus 52,790, a 20.2% lead, proving that even with half the cores, AMD can outpace Intel in heavily threaded workloads.

Integer math is another AMD stronghold: 250,683 versus 198,761, a 26.1% advantage. Data compression and encryption also favor AMD, with scores of 860,786 versus 799,474 (7.7% lead) and 48,268 versus 40,087 (20.4% lead). These wins suggest AMD's cores execute common server workloads more efficiently.

Intel's wins are concentrated in specific areas. The physics test is the most lopsided Intel victory: 7,105 versus 2,976, a 58.1% advantage. This result likely reflects Intel's higher core count and memory bandwidth working together. The find prime numbers test shows Intel at 541 versus 294, a 45.7% lead. Random string sorting goes to Intel at 88,019 versus 81,318, a 7.6% margin. Extended instructions and floating point math are closer, with Intel winning by 2% and 3.4% respectively, scoring 65,656 versus 64,345 and 157,330 versus 152,003.

The overall win count is 12 for AMD and 5 for Intel. The benchmarks where Intel wins are narrower in most cases, while AMD's wins are often substantial, particularly in single-thread and integer-heavy tasks. The data indicates that for general server workloads, rendering, and encryption, the AMD EPYC 4565P is the stronger processor. For physics simulation, large memory footprint scientific computing, and string manipulation tasks, the Intel Xeon 6731P offers specific advantages that may justify its higher power draw and launch MSRP.