CPU Comparison

The benchmark data presents a striking outcome: the Intel Xeon D-1587, a 16-core Broadwell part from 2016, defeats the Intel Xeon E-2374G, a 4-core Rocket Lake part from 2021, in every single Cinebench test recorded. The E-2374G’s higher clock speeds and newer architecture do not translate into a single benchmark victory, with the D-1587 winning all six head-to-head comparisons by margins ranging from 1.9% to 2.2%. This makes the D-1587 the clear performance leader in this matchup, despite the E-2374G’s significant advantages in per-core frequency and platform modernity.

FAQ

Q: Which processor wins in multi-core performance?

A: The Intel Xeon D-1587 wins all three multi-core Cinebench tests. It scores 1167 in R15, 4865 in R20, and 11585 in R23, versus the E-2374G’s 1142, 4760, and 11335 respectively. The margin is a consistent 2.2% in each case.

Q: Does the E-2374G win in single-core performance due to its higher clock speed?

A: No. Despite its 3.70 GHz base and 5.00 GHz boost clocks, the E-2374G loses every single-core test. The D-1587 scores 164 in R15 single-core, 686 in R20, and 1635 in R23, while the E-2374G scores 161, 672, and 1600. The D-1587’s single-core lead is 1.9% in R15 and 2.1-2.2% in R20 and R23.

Q: What is the biggest performance gap in this head-to-head?

A: The largest deltas are 2.2%, which occur in four tests: Cinebench R15 multi-core, R20 multi-core, R23 multi-core, and R23 single-core. The smallest gap is 1.9% in Cinebench R15 single-core.

Q: How do these processors compare to their nearest rivals?

A: The D-1587 has an average benchmark score of 3350, placing it 0.5% above the Intel Core i7-7800X (3333) and 1.2% above the Intel Core i5-11400T (3309). The E-2374G averages 3278, which is 0% different from the Intel Core i3-12100T and AMD Ryzen Embedded V2516 (both 3277), and 0.4% above the Intel Xeon E5-1680 v3 (3265).

Q: What are the core and thread counts for each CPU?

A: The Intel Xeon D-1587 has 16 cores and 32 threads. The Intel Xeon E-2374G has 4 cores and 8 threads. Despite having one-quarter the cores, the E-2374G nearly matches the D-1587 in multi-core scores.

Q: Which processor has a higher launch MSRP?

A: The Intel Xeon D-1587 has a launch MSRP of 1549. The Intel Xeon E-2374G has a launch MSRP of $334.

Where Each One Wins

The data is unambiguous: the Intel Xeon D-1587 wins every benchmark category recorded. It takes all six head-to-head Cinebench tests, covering both multi-core and single-core workloads across R15, R20, and R23 versions. In multi-core tests, the D-1587’s 16 cores and 32 threads provide a sustained advantage, scoring 1167, 4865, and 11585 across the three Cinebench versions. The E-2374G, with only 4 cores and 8 threads, trails by 2.2% in each of these multi-core tests.

In single-core tests, the outcome is even more surprising given the E-2374G’s 5.00 GHz boost clock. The D-1587 still wins, scoring 164, 686, and 1635 versus the E-2374G’s 161, 672, and 1600. This suggests that the D-1587’s per-core efficiency in these specific Cinebench workloads is superior, despite its lower 2.30 GHz boost clock. There is no test category where the E-2374G emerges victorious; the wins column shows 6 for the D-1587 and 0 for the E-2374G.

The E-2374G’s only advantages are qualitative. It supports PCIe Gen 4 with 20 lanes, while the D-1587 uses PCIe Gen 3 with 24 lanes. It also includes integrated graphics (UHD Graphics P750), whereas the D-1587 has none. However, in terms of raw CPU benchmark performance, the D-1587 is the definitive winner across the board.

Architecture Differences

The two processors come from different Intel architectures and eras. The Intel Xeon D-1587 is based on Broadwell, specifically the Broadwell-DE generation, and was released in 2016. It uses a 14 nm process node with 3,200 million transistors on a 246 mm² die. Its cache hierarchy is per-core: 64 KB L1, 256 KB L2, and 1.5 MB L3 per core. This design prioritizes high core counts in a low-power (65 W TDP) package for server and workstation density.

The Intel Xeon E-2374G is based on Rocket Lake, specifically the Rocket Lake-E generation, released in 2021. It also uses a 14 nm process node, but with a larger 276 mm² die size and no transistor count listed. Its cache is structured differently: 80 KB L1 per core, 512 KB L2 per core, and a shared 8 MB L3 cache. This architecture favors higher clock speeds and modern instructions, with a 80 W TDP.

Memory support also differs. The D-1587 supports both DDR3 and DDR4 memory, while the E-2374G supports only DDR4. Both use a dual-channel memory bus, but the E-2374G lists a specific memory bandwidth of 51.2 GB/s, which the D-1587 does not specify. The E-2374G also includes integrated graphics (UHD Graphics P750), which is absent from the D-1587. Socket compatibility is entirely different: the D-1587 uses Intel BGA 1667, while the E-2374G uses Intel Socket 1200.

Specification Differences

The table below highlights the key specification differences between the two processors, based strictly on the provided data.

| Specification | Intel Xeon D-1587 | Intel Xeon E-2374G |

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

| Cores | 16 | 4 |

| Threads | 32 | 8 |

| Base Clock | 1700.00 MHz | 3.70 GHz |

| Boost Clock | 2.30 GHz | 5.00 GHz |

| TDP | 65 W | 80 W |

| Socket | Intel BGA 1667 | Intel Socket 1200 |

| Architecture | Broadwell | Rocket Lake |

| Codename | Broadwell | Rocket Lake-E |

| Generation | Xeon D (Broadwell-DE) | Xeon E (Rocket Lake-E) |

| Die Size | 246 mm² | 276 mm² |

| Transistors | 3,200 million | Not listed |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L2 Cache | 256 KB (per core) | 512 KB (per core) |

| L3 Cache | 1.5 MB (per core) | 8 MB (shared) |

| Memory Support | DDR3, DDR4 | DDR4 |

| Memory Bandwidth | Not listed | 51.2 GB/s |

| PCIe | Gen 3, 24 Lanes | Gen 4, 20 Lanes |

| Integrated Graphics | None | UHD Graphics P750 |

| Release Date | 2016-02-23 | 2021-09-07 |

| Launch MSRP | 1549 | $334 |

Head-to-Head Benchmarks

The Cinebench results are remarkably consistent, with the D-1587 winning every test by a narrow but uniform margin. In Cinebench R15 multi-core, the D-1587 scores 1167 against the E-2374G’s 1142, a 2.2% advantage. The R15 single-core test shows a 1.9% lead for the D-1587, scoring 164 versus 161. This pattern continues in Cinebench R20, where the D-1587 wins multi-core with 4865 versus 4760 (2.2% delta) and single-core with 686 versus 672 (2.1% delta).

Cinebench R23 results reinforce the trend. The D-1587 scores 11585 in multi-core versus 11335 for the E-2374G, another 2.2% margin. In single-core, the D-1587 scores 1635 versus 1600, also a 2.2% delta. Across all six tests, the D-1587’s smallest win is 1.9% (R15 single-core) and its largest is 2.2% (four separate tests). The E-2374G never comes within 1.9% of the D-1587, and the data shows no test where the E-2374G closes the gap to less than 1.9%.

The average benchmark scores reflect this overall dominance. The D-1587 has an average score of 3350, compared to the E-2374G’s 3278. This places the D-1587 at the 54th percentile of all CPUs, while the E-2374G sits at the 53rd percentile. Interestingly, the E-2374G’s nearest rival, the Intel Core i3-12100T, has an identical average score of 3277, while the D-1587’s closest rival, the AMD Ryzen 7 5800U, scores 3369, just 0.5% higher.

The Verdict

The data points to a clear and decisive winner: the Intel Xeon D-1587. It wins all six benchmark tests, with margins ranging from 1.9% to 2.2%. The E-2374G, despite being a newer, higher-clocked processor with a 5.00 GHz boost, cannot overcome the D-1587’s core-count advantage and per-core efficiency in Cinebench workloads. The D-1587’s 16 cores and 32 threads deliver consistent multi-core performance, while its single-core results also edge out the E-2374G, suggesting the older architecture is better optimized for these specific tests.

For users prioritizing raw benchmark performance, the D-1587 is the obvious choice. Its 54th percentile ranking and average score of 3350 exceed the E-2374G’s 53rd percentile and 3278 average. The D-1587 also offers lower power consumption at 65 W TDP versus 80 W, and supports both DDR3 and DDR4 memory for flexibility. However, the E-2374G is not without merit. It features PCIe Gen 4 support, integrated graphics, a higher memory bandwidth of 51.2 GB/s, and a significantly lower launch MSRP of $334 versus 1549 for the D-1587. It also uses the more common Socket 1200, which may offer more motherboard options.

The verdict depends on the use case. If the goal is maximum Cinebench performance, the D-1587 is the definitive winner. If the user values modern platform features like PCIe Gen 4, integrated graphics, and lower initial cost, the E-2374G has advantages that the benchmark scores do not capture. But strictly on the benchmark data, the D-1587 wins every test, making it the superior processor for compute-bound tasks measured here.