Intel Xeon D-1541 vs Intel Xeon E3-1285 v6 Comparison

Head-to-Head Benchmarks

The recorded data shows a clean sweep for the Intel Xeon D-1541 across all six Cinebench workloads. The margin is remarkably consistent, hovering around 4% regardless of test generation or threading model. In Cinebench R15 multicore, the D-1541 scores 852 against 818 for the E3-1285 v6, a 4% advantage. The single-core R15 test shows the same pattern: 120 versus 115, a 4.2% lead. These are not isolated results; the consistency suggests a fundamental throughput advantage rather than workload-specific behavior.

Moving to Cinebench R20, the D-1541 again wins multicore with 3554 points versus 3409 points, a 4.1% gap. Its single-core R20 score of 501 beats 481 by 4%. The newest test generation, Cinebench R23, confirms the trend: multicore 8463 versus 8119 (4.1% ahead), and single-core 1194 versus 1146 (4% ahead). Every delta sits between 4% and 4.2%, meaning the D-1541 is not just faster in aggregate but evenly faster across both single-threaded and multi-threaded workloads.

What makes this interesting is the architectural context. The E3-1285 v6 runs at a base clock of 4.10 GHz and boosts to 4.50 GHz, far higher than the D-1541's 2.10 GHz base and 2.70 GHz boost. Despite that clock disadvantage, the D-1541 still wins every single-core test. The E3-1285 v6 has 4 cores and 8 threads; the D-1541 doubles that to 8 cores and 16 threads. Yet in multicore tests, the D-1541's lead is only around 4%, not the near-doubling one might expect from twice the core count. This indicates the E3-1285 v6's high clocks partially compensate for its fewer cores, but not enough to overcome the D-1541's parallel throughput.

The average benchmark score in the database puts the D-1541 at 2447, compared to 2348 for the E3-1285 v6, a 4.2% overall difference. Both processors sit at the 48th percentile among all CPUs tracked. The nearest rivals for the E3-1285 v6 are the Intel Core i5-9600 (2354, 0.3% higher), AMD Ryzen 5 2500X (2361, 0.5% higher), Intel Xeon E-2226GE (2365, 0.7% higher), and Intel Xeon E-2234 (2374, 1.1% higher). For the D-1541, the closest competitors are the Intel Core i5-10500 (2446, 0% delta), Intel Core i3-1125G4 (2451, 0.2% lower), Intel Core i5-8600 (2454, 0.3% lower), and Intel Xeon D-1540 (2467, 0.8% lower). These rival clusters show that both chips are firmly in the mid-range server/desktop crossover zone, with the D-1541 sitting slightly higher in the pecking order.

FAQ

Q: Which processor wins more benchmarks in the head-to-head data?

A: The Intel Xeon D-1541 wins all six recorded head-to-head comparisons. It takes Cinebench R15 multicore and single-core, R20 multicore and single-core, and R23 multicore and single-core. The E3-1285 v6 records zero wins.

Q: How large is the performance gap between the two in Cinebench R23?

A: In R23 multicore, the D-1541 scores 8463 against 8119, a 4.1% advantage. In R23 single-core, it scores 1194 versus 1146, a 4% lead. The gap is consistent across both threading modes.

Q: Does the higher clock speed of the E3-1285 v6 translate into single-core wins?

A: No. Despite a base clock of 4.10 GHz and boost of 4.50 GHz versus the D-1541's 2.10 GHz base and 2.70 GHz boost, the D-1541 still wins every single-core test by about 4%. The E3-1285 v6's clock advantage does not overcome the D-1541's per-core efficiency.

Q: What are the nearest rivals for each processor in the database?

A: For the E3-1285 v6, the nearest rival is the Intel Core i5-9600 with an average score of 2354, a 0.3% delta. For the D-1541, the nearest rival is the Intel Core i5-10500 with 2446, a 0% delta.

Q: Do both processors support ECC memory?

A: Yes, both the E3-1285 v6 and the D-1541 list ECC memory support as true in the database. Both are also marked for the Server/Workstation market segment.

Q: What is the production status of each chip?

A: The D-1541 is listed as "Active" in production status. The E3-1285 v6 has no production status field recorded in the database.

Architecture Differences

The E3-1285 v6 is built on Kaby Lake architecture, specifically the Kaby Lake-DT codename, while the D-1541 uses Broadwell architecture with the Broadwell-DE codename. Both are manufactured on a 14 nm process at Intel's foundry, but the similarities end there. The E3-1285 v6 packs 1,400 million transistors into a 160 mm² die. The D-1541 is substantially larger, with 3,200 million transistors on a 246 mm² die. That is more than double the transistor count on a die that is roughly 54% larger by area.

The core configurations diverge sharply. The E3-1285 v6 has 4 cores and 8 threads; the D-1541 has 8 cores and 16 threads. Cache hierarchies also differ. Both have 64 KB of L1 per core and 256 KB of L2 per core. The L3 cache, however, is structured differently: the E3-1285 v6 has 8 MB shared, while the D-1541 has 1.5 MB per core. With 8 cores, that works out to 12 MB total, but the per-core allocation is notable for a chip with this many threads.

Memory support marks another split. The E3-1285 v6 supports DDR4 only, while the D-1541 supports both DDR3 and DDR4. Both use a dual-channel memory bus. PCIe connectivity differs as well: the E3-1285 v6 provides Gen 3 with 16 lanes (CPU only), while the D-1541 provides Gen 3 with 24 lanes (CPU only). The D-1541 offers 50% more PCIe lanes for expansion.

Integrated graphics separate the two further. The E3-1285 v6 includes HD Graphics P630; the D-1541 has no integrated graphics at all. This matters for systems that rely on the CPU for display output, though both target server and workstation workloads where discrete GPUs are common. The sockets are entirely different: the E3-1285 v6 uses Intel Socket 1151, while the D-1541 uses Intel BGA 1667, meaning the latter is soldered and not upgradeable.

Specification Differences

Clock speeds favor the E3-1285 v6 decisively. It runs at a 4.10 GHz base clock and 4.50 GHz boost, compared to the D-1541's 2.10 GHz base and 2.70 GHz boost. Thermal design power reverses the picture: the E3-1285 v6 draws 79 W, while the D-1541 draws only 45 W, a 34 W difference that makes the D-1541 far more power-efficient per core.

Core and thread counts favor the D-1541: 8 cores and 16 threads against 4 cores and 8 threads. Transistor count and die size also favor the D-1541, with 3,200 million transistors on 246 mm² versus 1,400 million on 160 mm². The cache structure differs as described above: 8 MB shared L3 for the E3-1285 v6, 1.5 MB per core for the D-1541.

Memory support: the E3-1285 v6 is DDR4-only; the D-1541 accepts both DDR3 and DDR4. PCIe lanes: 16 for the E3-1285 v6, 24 for the D-1541. Integrated graphics: present on the E3-1285 v6 (HD Graphics P630), absent on the D-1541. Socket: Socket 1151 versus BGA 1667. Release dates differ by nearly two years: the E3-1285 v6 launched on 2017-07-31, the D-1541 on 2015-10-31. The D-1541 has a recorded launch MSRP of $581; the E3-1285 v6 has none in the database. Part numbers: SR373 for the E3-1285 v6, SR2DE for the D-1541. Neither has an unlocked multiplier.

Where Each One Wins

The D-1541 wins every benchmark in the head-to-head set. That means it is the better choice for any Cinebench-style rendering workload, whether single-threaded or multi-threaded. Its 8-core, 16-thread configuration gives it a natural advantage in parallel tasks, and the data shows it also edges out the E3-1285 v6 in single-core tests despite much lower clocks. For workloads that scale across cores, the D-1541's 16 threads provide headroom. For workloads that are latency-sensitive and single-threaded, the D-1541 still comes out ahead, which is a surprising result given the E3-1285 v6's 4.50 GHz boost.

The E3-1285 v6 does not win any recorded benchmark, but it has structural advantages that matter outside Cinebench. Its 4.50 GHz boost clock is the highest in this comparison, which could benefit legacy single-threaded applications not represented in the bench set. Its lower transistor count and smaller die suggest lower manufacturing complexity, though the database records no efficiency metrics beyond TDP. The 79 W TDP is higher than the D-1541's 45 W, but the E3-1285 v6 runs on a socketed platform (Socket 1151), allowing CPU replacement, whereas the D-1541 is BGA-soldered.

For integrated graphics, the E3-1285 v6 is the only option with HD Graphics P630. The D-1541 has no iGPU, so any system using it requires a discrete graphics card. The D-1541's 24 PCIe lanes and dual memory type support (DDR3 and DDR4) give it more flexibility in memory selection and expansion. The E3-1285 v6's 16 lanes are sufficient for basic server duties but leave less room for NVMe or additional controllers.

The Verdict

The data is unambiguous: the Intel Xeon D-1541 is the faster processor in every measured test. Its six-win sweep across Cinebench R15, R20, and R23 covers both single-core and multicore workloads, with a consistent 4% to 4.2% margin. Anyone prioritizing raw Cinebench performance should select the D-1541 without hesitation. Its 8 cores and 16 threads provide double the parallelism of the E3-1285 v6, and its 45 W TDP makes it far more efficient in power-constrained environments.

The E3-1285 v6 is not without reasons to exist. It offers a socketed platform for serviceability, integrated graphics for basic display output, and a high 4.50 GHz boost that may benefit specific single-threaded server tasks not captured in the bench suite. Its 79 W TDP is higher, but for systems already equipped with a discrete GPU, the integrated graphics advantage disappears, and the socketed form factor becomes less relevant.

The launch MSRP of $581 for the D-1541 is the only pricing datum in the database, and it positions that chip as a premium option. The E3-1285 v6 has no recorded MSRP. For new deployments where performance is the sole criterion, the D-1541 wins outright. For environments that require a replaceable CPU or rely on integrated graphics, the E3-1285 v6 remains viable, but the benchmark record shows it trails in every workload the database tracks. The verdict from the measurements: choose the D-1541 for performance, choose the E3-1285 v6 only if socket compatibility or iGPU support is a hard requirement.