AMD EPYC 7642 vs Intel Xeon 6710E Comparison

The Intel Xeon 6710E and AMD EPYC 7642 are both high-end server processors that land in the same performance tier, but they achieve their results through very different designs. Benchmark data shows the Intel Xeon 6710E wins 10 of 17 head-to-head tests, while the AMD EPYC 7642 takes 7, yet the average benchmark scores are remarkably close: 129,930 for Intel versus 124,006 for AMD. The Xeon 6710E edges ahead in most multi-threaded and rendering workloads, while the EPYC 7642 counters with superior single-thread and specialized instruction performance. Neither chip dominates outright; the choice depends heavily on the specific application mix.

Where Each One Wins

The Intel Xeon 6710E is the clear winner in rendering and content-creation workloads. Across the entire Cinebench suite, it maintains a consistent 5.1% advantage over the EPYC 7642 in both single-core and multi-core tests. The largest margin comes in floating-point math, where the Xeon scores 219,926 against AMD's 181,887, a 20.9% lead. Random string sorting is another decisive victory for Intel, with a 31.9% advantage (151,491 versus 114,871), suggesting the Xeon 6710E handles data manipulation and sorting tasks with notably greater efficiency.

The AMD EPYC 7642 wins where instruction-level efficiency and single-thread speed matter most. It leads in PassMark single-thread performance by 6.9% (2,052 versus 1,910) and shows a 13.4% advantage in extended instructions (68,841 versus 59,625). Data encryption also favors AMD by 5.3% (86,397 versus 81,850), and prime number finding goes to AMD by 9.1% (496 versus 451). These wins indicate the EPYC 7642 is better suited for cryptography, scientific computing with specialized instruction sets, and workloads that rely on single-thread responsiveness.

Architecture Differences

The architectural gap between these two processors is substantial. The Intel Xeon 6710E uses the Sierra Forest architecture on a 5 nm process, fabricated by Intel, while the AMD EPYC 7642 uses the older Zen 2 architecture on a 7 nm process from TSMC. Intel's chip packs 64 cores but only 64 threads, meaning no simultaneous multithreading, whereas AMD offers 48 cores with 96 threads, leveraging SMT to double thread count. Base clocks are identical at 2.40 GHz, but AMD boosts higher at 3.40 GHz versus Intel's 3.20 GHz.

Cache configurations reveal different design philosophies. The Xeon 6710E has 96 MB of shared L3 cache and a large 4 MB L2 per module, while the EPYC 7642 has a much larger 256 MB shared L3 but smaller 512 KB L2 per core. Both have the same 96 KB L1 per core. Intel's die size is 578 mm², compared to AMD's 74 mm², and AMD lists 3,800 million transistors while Intel's count is not provided. Memory support diverges: Intel uses DDR5 with 358.4 GB/s bandwidth, while AMD uses DDR4 with 204.8 GB/s, both over eight channels. Intel also offers PCIe Gen 5 with 88 lanes, while AMD provides PCIe Gen 4 without a specific lane count. Both support ECC memory, and neither has integrated graphics. The Intel chip has a launch MSRP of $2749; the AMD's launch MSRP is not available.

Head-to-Head Benchmarks

The most striking result is in random string sorting, where the Xeon 6710E outperforms the EPYC 7642 by 31.9% (151,491 versus 114,871). This is the largest single margin in the entire comparison. Floating-point math shows a 20.9% Intel advantage (219,926 versus 181,887), indicating the Xeon 6710E is substantially stronger in numerical computation. The Cinebench tests all show identical 5.1% deltas in Intel's favor: R15 multi-core (5,292 versus 5,037), R15 single-core (747 versus 711), R20 multi-core (22,053 versus 20,989), R20 single-core (3,113 versus 2,963), R23 multi-core (52,508 versus 49,975), and R23 single-core (7,413 versus 7,055). PassMark multi-thread also shows a 5.1% Intel lead (61,775 versus 58,795), and data compression goes to Intel by 2.9% (1,230,786 versus 1,195,584).

AMD's wins are narrower but consistent. Extended instructions show the largest AMD margin at 13.4% (68,841 versus 59,625). Prime number finding favors AMD by 9.1% (496 versus 451). Single-thread performance goes to AMD by 6.9% (2,052 versus 1,910). Data encryption shows a 5.3% AMD advantage (86,397 versus 81,850). Physics tests go to AMD by 1.9% (5,098 versus 5,000), and integer math is nearly tied, with AMD ahead by just 0.8% (305,303 versus 302,954). The pattern is clear: Intel wins big in memory-heavy and floating-point tasks, while AMD wins in instruction-specific and single-thread benchmarks.

The Verdict

Choose the Intel Xeon 6710E if your workloads are dominated by rendering, floating-point math, data sorting, or multi-threaded throughput. The data shows a consistent 5.1% advantage across all Cinebench versions, a 20.9% lead in floating-point math, and a massive 31.9% edge in random string sorting. The Xeon 6710E also offers DDR5 memory with 358.4 GB/s bandwidth, which is 75% higher than AMD's DDR4 bandwidth, and PCIe Gen 5 connectivity. This makes it the stronger pick for modern rendering farms, scientific simulation, and data-intensive server applications.

Choose the AMD EPYC 7642 if single-thread performance, encryption, or specialized instruction sets are your priority. It leads by 6.9% in single-thread tests, 13.4% in extended instructions, and 5.3% in data encryption. The 96 threads from SMT give it an advantage in highly parallel thread-heavy workloads, and the larger 256 MB L3 cache may benefit certain access patterns. The EPYC 7642 also has a higher boost clock at 3.40 GHz. For general-purpose servers with mixed loads, the choice is less clear: the average benchmark scores differ by only 4.8%, and both sit at the 97th percentile of all CPUs. The decision should rest on which specific benchmark categories match your application profile.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon 6710E has 64 cores and 64 threads, while the AMD EPYC 7642 has 48 cores and 96 threads. Intel does not use simultaneous multithreading, whereas AMD does.

Q: How do they compare in multi-threaded rendering?

A: The Intel Xeon 6710E wins all Cinebench multi-core tests by 5.1%. In Cinebench R23 multi-core, Intel scores 52,508 versus AMD's 49,975. PassMark multi-thread also goes to Intel by 5.1% (61,775 versus 58,795).

Q: Which processor is better for single-thread workloads?

A: The AMD EPYC 7642 leads in PassMark single-thread performance with a score of 2,052 versus Intel's 1,910, a 6.9% advantage. However, Intel wins all Cinebench single-core tests by 5.1%, including R23 single-core at 7,413 versus 7,055.

Q: What are the memory and bandwidth differences?

A: The Intel Xeon 6710E supports DDR5 with 358.4 GB/s bandwidth, while the AMD EPYC 7642 supports DDR4 with 204.8 GB/s. Both use eight-channel memory buses and support ECC.

Q: Which processor has a larger L3 cache?

A: The AMD EPYC 7642 has 256 MB of shared L3 cache, compared to 96 MB on the Intel Xeon 6710E. Intel has a larger L2 cache per module at 4 MB, versus AMD's 512 KB per core.

Q: How close are their overall average benchmark scores?

A: The Intel Xeon 6710E has an average benchmark score of 129,930, while the AMD EPYC 7642 scores 124,006. The Intel chip sits 4.8% higher, and both are at the 97th percentile of all CPUs.

Specification Differences

| Specification | Intel Xeon 6710E | AMD EPYC 7642 |

|---|---|---|

| Cores | 64 | 48 |

| Threads | 64 | 96 |

| Boost Clock | 3.20 GHz | 3.40 GHz |

| TDP | 205 W | 225 W |

| Socket | Intel Socket 4710 | AMD Socket SP3 |

| Architecture | Sierra Forest | Zen 2 |

| Process Node | 5 nm | 7 nm |

| Foundry | Intel | TSMC |

| Transistors | Not provided | 3,800 million |

| Die Size | 578 mm² | 74 mm² |

| L2 Cache | 4 MB (per module) | 512 KB (per core) |

| L3 Cache | 96 MB (shared) | 256 MB (shared) |

| Memory Support | DDR5 | DDR4 |

| Memory Bandwidth | 358.4 GB/s | 204.8 GB/s |

| PCIe | Gen 5, 88 Lanes (CPU only) | Gen 4 |

| Release Date | 2024-06-02 | 2019-08-06 |

| Launch MSRP | $2749 | Not available |

| Part Number | SRPG2 | 100-000000074 |