Intel Xeon D-1540 vs Intel Xeon E5-2630L v3 Comparison

Head-to-Head Benchmarks

The recorded data shows a clean sweep in favor of the Intel Xeon D-1540 across all six Cinebench tests. The margins are consistent, hovering around 2.4% in every multi-core and single-core workload. In Cinebench R15 multi-core, the D-1540 scores 859 against 839 for the E5-2630L v3, a 2.4% advantage. The single-core R15 result is similar: 121 versus 118, a 2.5% gap. Moving to Cinebench R20, the D-1540 posts 3583 in multi-core and 505 in single-core, while the E5-2630L v3 manages 3498 and 493 respectively. The deltas remain at 2.4% for both tests. In Cinebench R23, the D-1540 reaches 8531 multi-core and 1204 single-core, against 8330 and 1176 for the E5-2630L v3. Again, the difference is 2.4%.

What does this mean in practical terms? The D-1540 is consistently ahead, but the margin is narrow enough that most real-world workloads will not show a dramatic difference. The average benchmark score for the D-1540 is 2467, while the E5-2630L v3 sits at 2409. The D-1540 sits at the 48th percentile of all CPUs in the database, and the E5-2630L v3 also sits at the 48th percentile, meaning both are squarely in the mid-range of recorded processors. The nearest rivals for the D-1540 include the Intel Core i3-12100TE, which scores 2475 and trails by only 0.3%, and the Intel Core i5-8600 at 2454, which is 0.5% behind. The E5-2630L v3's closest competitor is the AMD Ryzen 3 PRO 4450U at 2413, which is 0.1% ahead, and the Intel Core i7-9850HE at 2421, which leads by 0.5%. These rival comparisons put both chips in the same performance class.

The consistency of the 2.4% delta across all tests suggests that the D-1540's advantage is not workload-specific but rather a general characteristic of the two designs. In single-threaded tasks, the D-1540's higher base clock of 2000 MHz versus 1800 MHz helps, though the E5-2630L v3 has a higher boost clock of 2.90 GHz versus 2.60 GHz. The boost behavior in the database does not clearly explain the single-core win, but the recorded scores speak for themselves. For multi-threaded workloads, both chips have 8 cores and 16 threads, so the difference comes down to per-core efficiency and memory architecture rather than core count.

Architecture Differences

The two processors come from different Intel microarchitectures and process nodes. The D-1540 uses Broadwell (specifically Broadwell-DE) built on Intel's 14 nm process, with 3,200 million transistors on a 246 mm² die. The E5-2630L v3 uses Haswell (Haswell-EP) on the older 22 nm node, with 2,600 million transistors on a 356 mm² die. The D-1540 is denser, fitting more transistors onto a smaller die, which contributes to its lower thermal design power.

The cache layouts differ substantially. The D-1540 has 64 KB of L1 per core and 256 KB of L2 per core, with L3 cache allocated at 1.5 MB per core, resulting in 12 MB total for 8 cores. The E5-2630L v3 also has 64 KB L1 and 256 KB L2 per core, but its L3 is 20 MB shared across all cores. This is a notable difference: the E5-2630L v3 has a larger unified L3 pool, which can benefit workloads that share data across cores. However, the D-1540's per-core L3 allocation may be more predictable for isolated tasks.

Memory support is another divergence. The D-1540 supports both DDR3 and DDR4 in a dual-channel configuration. The E5-2630L v3 supports only DDR4 but through a quad-channel memory bus, with a recorded memory bandwidth of 59.7 GB/s. The D-1540 does not have a published memory bandwidth figure in the database, but the dual-channel setup is inherently narrower than quad-channel. For memory-heavy applications, the E5-2630L v3's quad-channel interface could offset its lower core clock efficiency.

PCIe connectivity differs as well. The D-1540 provides Gen 3, 24 lanes from the CPU, while the E5-2630L v3 offers Gen 3, 40 lanes. The E5-2630L v3 has more headroom for expansion cards, storage controllers, or multiple GPUs. The D-1540 uses Intel BGA 1667, a soldered socket, while the E5-2630L v3 uses Intel Socket 2011-3, a traditional LGA socket that allows for replacement or upgrade. The D-1540 was released on March 8, 2015, with a launch MSRP of $581, while the E5-2630L v3 came out on September 7, 2014, with a launch MSRP of $612.

The D-1540 remains active in production, while the E5-2630L v3 is end-of-life. Both are locked multipliers and lack integrated graphics, targeting server and workstation use. The D-1540's part number is SR29A, and the E5-2630L v3's is SR209. Neither has a codename difference beyond the architecture family.

FAQ

Q: Which processor has a higher single-core score in Cinebench R23?

A: The Intel Xeon D-1540 scores 1204, while the Intel Xeon E5-2630L v3 scores 1176. The D-1540 leads by 2.4%.

Q: Do both chips have the same core and thread counts?

A: Yes, both have 8 cores and 16 threads. The performance difference is not due to core count.

Q: What is the memory bandwidth difference?

A: The E5-2630L v3 has a recorded memory bandwidth of 59.7 GB/s over a quad-channel DDR4 bus. The D-1540 uses dual-channel DDR3 or DDR4, and no bandwidth figure is listed in the database.

Q: Which processor has a higher boost clock?

A: The E5-2630L v3 boosts to 2.90 GHz, while the D-1540 boosts to 2.60 GHz. Despite this, the D-1540 wins every single-core benchmark in the recorded data.

Q: Are both processors ECC-capable?

A: Yes, both support ECC memory, which is typical for server and workstation parts.

Q: How do their average benchmark scores compare?

A: The D-1540 has an average benchmark score of 2467, and the E5-2630L v3 has 2409. The D-1540 is about 2.4% ahead, matching the head-to-head deltas.

The Verdict

The data indicates that the Intel Xeon D-1540 is the faster chip in every benchmark category recorded. If the decision is purely about performance, the D-1540 wins all six head-to-head tests, with consistent 2.4% to 2.5% margins. The D-1540 also has a lower TDP of 45 watts versus 55 watts for the E5-2630L v3, making it more power-efficient per unit of work. Its 14 nm process and denser transistor layout support this efficiency.

However, the E5-2630L v3 is not without merits. It offers a quad-channel memory bus with 59.7 GB/s bandwidth, which could matter for memory-bound workloads, and it has 40 PCIe lanes versus 24, providing more expansion capability. The larger 20 MB shared L3 cache could also help in certain server workloads where data sharing between cores is frequent. The E5-2630L v3 uses a standard LGA 2011-3 socket, which allows for cooler and motherboard flexibility, while the D-1540 is soldered to its BGA 1667 board.

For a system builder prioritizing raw Cinebench scores, power draw, and a smaller footprint (the D-1540's BGA package is typical of embedded or compact designs), the D-1540 is the clear choice. For someone who needs maximum memory bandwidth, many PCIe devices, or a replaceable CPU in a standard socket, the E5-2630L v3 holds an advantage that the benchmarks do not capture. The percentile rankings are identical at 48, and the average scores differ by less than 3%, so neither chip is in a different class.

Specification Differences

| Specification | Intel Xeon D-1540 | Intel Xeon E5-2630L v3 |

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

| Base Clock | 2000.00 MHz | 1800.00 MHz |

| Boost Clock | 2.60 GHz | 2.90 GHz |

| TDP | 45 W | 55 W |

| Socket | Intel BGA 1667 | Intel Socket 2011-3 |

| Architecture | Broadwell | Haswell |

| Process Node | 14 nm | 22 nm |

| Transistors | 3,200 million | 2,600 million |

| Die Size | 246 mm² | 356 mm² |

| L3 Cache | 1.5 MB per core | 20 MB shared |

| Memory Support | DDR3, DDR4 | DDR4 |

| Memory Bus | Dual-channel | Quad-channel |

| Memory Bandwidth | Not listed | 59.7 GB/s |

| PCIe Lanes | Gen 3, 24 Lanes | Gen 3, 40 Lanes |

| Release Date | 2015-03-08 | 2014-09-07 |

| Launch MSRP | $581 | $612 |

| Production Status | Active | End-of-life |

| Part Number | SR29A | SR209 |

Where Each One Wins

The D-1540 wins every Cinebench test in the head-to-head comparison, including both multi-core and single-core in R15, R20, and R23. This makes it the better choice for workloads that are bound by CPU compute throughput, such as compilation, video encoding, or 3D rendering, where the 2.4% advantage will translate to slightly shorter completion times. Its lower TDP also makes it attractive for dense server deployments or fanless cooling solutions where heat dissipation is a constraint. The D-1540's support for both DDR3 and DDR4 provides flexibility in memory sourcing, though only in dual-channel mode.

The E5-2630L v3, despite losing all benchmarks, wins in scenarios that the Cinebench tests do not measure. Its quad-channel memory bus with 59.7 GB/s bandwidth gives it a clear edge in memory-bandwidth-hungry applications like database analytics, scientific simulations, or in-memory computing, where the D-1540's narrower dual-channel path could become a bottleneck. The 40 PCIe lanes allow for more NVMe drives, network interfaces, or GPU accelerators, making it a better fit for a high-expansion compute node. The larger 20 MB shared L3 cache may also help in workloads with large working sets that fit into cache. The E5-2630L v3's socket 2011-3 means it can be paired with a wider range of motherboards and upgraded or replaced independently, which is a practical advantage for maintainable systems. Its higher boost clock of 2.90 GHz could also help in short, bursty single-threaded tasks, though the recorded single-core scores do not reflect that benefit. For a builder who values expansion, memory throughput, and serviceability over raw Cinebench numbers, the E5-2630L v3 remains a viable option despite its older process node and higher TDP.