AMD Opteron 6281 vs Intel Xeon D-1537 Comparison

# Intel Xeon D-1537 vs AMD Opteron 6281: A Data-Driven Showdown

The database pits the Intel Xeon D-1537 against the AMD Opteron 6281 across six Cinebench workloads. The recorded measurements are consistent: the Intel part wins all six head-to-head matchups, with margins ranging from 2.2% to 3.4%. The average benchmark score for the Xeon D-1537 is 1830, while the Opteron 6281 averages 1789, a gap of roughly 2.3%. Both processors sit near the 42nd percentile of all CPUs in the database, indicating they are solidly mid-pack performers for their respective eras. The real story here is about efficiency, not raw dominance. The Xeon D-1537 delivers competitive multi-threaded performance at a fraction of the power envelope, while the Opteron 6281 brings its 16 physical cores to bear. Below is the full breakdown.

FAQ

Q: Which processor wins the most benchmarks in this comparison?

A: The Intel Xeon D-1537 wins all six recorded Cinebench workloads. Its margins over the AMD Opteron 6281 range from 2.2% to 3.4% depending on the test.

Q: What is the average benchmark score for each CPU?

A: The Intel Xeon D-1537 has an average score of 1830 across the six tests. The AMD Opteron 6281 averages 1789. The Intel chip holds a 2.3% average advantage.

Q: Are these scores close, or is one clearly the winner?

A: The scores are close, but the Intel Xeon D-1537 wins every single workload. In the Cinebench R15 multi-core test, it scores 637 versus 623, a 2.2% lead. In the single-core test, the lead is 3.4% (90 vs 87).

Q: Do the benchmark results correlate with the core counts?

A: The AMD Opteron 6281 has 16 cores and 16 threads, while the Intel Xeon D-1537 has 8 cores and 16 threads. Despite the AMD chip's higher physical core count, the Intel processor still manages to edge ahead in multi-threaded workloads, which points to better per-core efficiency.

Q: Which chip is newer in the database?

A: The Intel Xeon D-1537 launched on October 31, 2015, and its part number is SR2GF. The AMD Opteron 6281 came out on April 30, 2012, part number OS6278WKTGGGU. The Intel chip is much newer.

The Verdict: who should pick which, strictly from the data

Strictly from the recorded metrics, the Intel Xeon D-1537 is the processor to choose. It wins every Cinebench workload in the comparison, with deltas of 2.2% to 3.4%. The AMD Opteron 6281 never posts a win in this data set, and its average score trails by 41 points. The Intel chip's percentile rank is identical (42nd), meaning they both sit at the same position relative to all other CPUs in the database, which makes the Xeon D-1537's higher absolute scores all the more telling. For a workload where single-threaded speed matters, like everyday desktop response, the Xeon D-1537's 3.4% edge in Cinebench R15 single-core is a real if modest benefit. For batch multi-core rendering, the Xeon's 2.2% to 2.3% advantages in R20 and R23 multi-core tests mean the render finishes sooner. The Opteron's 16 cores do not translate into a win in these tests, so the data points to Intel's architecture as the more efficient choice.

Head-to-Head Benchmarks

The following six Cinebench runs were recorded for both processors. The Intel Xeon D-1537 wins all, but the margins shift by workload.

In Cinebench R15 multi-core, the Xeon D-1537 scores 637 against the Opteron 6281's 623, a win by 2.2%. This is the smallest multi-core margin in the suite, but still a clear victory.

Cinebench R15 single-core gives the Xeon D-1537 its largest win: 90 versus 87, a 3.4% lead. This is the best single-thread result for the Intel part.

Cinebench R20 multi-core: Xeon D-1537 hits 2657, Opteron 6281 hits 2598, a 2.3% advantage. This confirms the multi-core R15 result with a slightly larger gap.

Cinebench R20 single-core: 375 versus 366, a 2.5% edge for Intel. Consistent with the R15 single-core outcome.

Cinebench R23 multi-core: Intel 6327, AMD 6187, difference of 2.3%. The largest absolute lead in the multi-threaded tests.

Cinebench R23 single-core: 893 versus 873, another 2.3% win for the Xeon D-1537. The single-core margins are steady across all three Cinebench versions.

The pattern is uniform: the Xeon D-1537 holds a lead in every test, the size of which stays between 2.2% and 3.4%. The Opteron does not win a single workload.

Specification Differences

The two CPUs differ across nearly every major specification. The Intel Xeon D-1537 is built on the Broadwell architecture (14 nm process node, 3.2 billion transistors, 246 mm² die) and targets the Server/Workstation market. It is an active, released part (SR2GF) with a stated launch MSRP of $470. The AMD Opteron 6281 is from the Buldozer era: 32 nm (GlobalFoundries), 2.4 billion transistors over two dies of 315 mm² each. It is listed as end-of-life, and its launch MSRP was $988.

| | Intel Xeon D-1537 | AMD Opteron 6281 |

| Core count | 8 | 16 |

| Thread count | 16 | 16 |

| Base clock | 1.70 GHz | 2.50 GHz |

| Boost clock | 2.30 GHz | 3.20 GHz |

| TDP | 35 W | 130 W |

| Socket | Intel BGA 1667 | AMD Socket G34 |

| Process | 14 nm | 32 nm |

| Transistors | 3,200 million | 2,400 million |

| Die size | 246 mm² | 2x 315 mm² |

| Cache L1 | 64 KB per core | 768 KB |

| Cache L2 | 256 KB per core | 2 MB per module |

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

| Memory support | DDR3, DDR4 | DDR3 |

| Memory bus | Dual-channel | Quad-channel |

| PCIe | Gen 3, 24 lanes (CPU only) | Gen 2 |

| Integrated graphics | None | None |

The Intel side uses DDR3 and DDR4 memory, the AMD is DDR3 only. Memory channels: the Opteron runs quad-channel, the Xeon D runs dual-channel. The AMD chip has a much higher base and boost clock, but also a much higher 130W TDP versus the Intel's 35W. The Intel chip has a smaller transistor count (3.2 billion vs the AMD's 2.4 billion) on a much smaller die. The Intel has double the PCIe generation and lanes. Both lack integrated graphics.

Where Each One Wins

Cinebench multi-threaded rendering: Intel Xeon D-1537 wins all four multi-core tests, with margins between 2.2% and 2.3%. The AMD's higher core count doesn't translate into a win.

Cinebench single-threaded: Intel wins all six Cinebench workloads. The single-core margin is the largest in the R15 test (3.4%), and the smallest in R23 is 2.3%.

Running at lower power: The Intel Xeon D-1537 has a 35W TDP versus 130W for the AMD. If the workload fits within the Intel's thread count and power envelope, the Intel is the more efficient choice.

PCI-Express & I/O: Intel's Gen3 with 24 lanes versus AMD's Gen2. Systems needing more PCIe bandwidth will lean Intel.

Legacy/availability: The AMD Opteron 6281 SE is marked end-of-life, while the Intel Xeon D-1537 remains an active part. The Intel is also the more recent release (2015 vs 2012).

Memory flexibility: If the platform needs DDR4, Intel Xeon D-1537 supports it. The AMD is DDR3 only.

Multi-threaded workloads: Both have 16 threads, but the Intel wins in multi-core tests despite the AMD's 16 physical cores.

Single-threaded workloads: Intel has the single-core wins in every test.

The AMD Opteron 6281's only place where it is not the loser is in the list of physical specifications: base clocks, boost clocks, L2/L3 cache sizes, and memory channels are all higher or wider. But in the actual measured performance, the Intel Xeon D-1537 wins every workload.