AMD Opteron 6378 vs Intel Core i7-4712HQ Comparison

The AMD Opteron 6378 and Intel Core i7-4712HQ occupy opposite ends of the processor spectrum: one is a 16-core server chip built for multi-socket density, the other a 4-core mobile part designed for laptops. Despite their different purposes, their average benchmark scores are remarkably close — the Opteron averages 1447 across all tests, while the i7 averages 1436. This places both within a hair of each other in the global percentile rankings, with the Opteron at the 38th percentile and the i7 at the 37th. The data reveals a head-to-head contest where the older, higher-power server part consistently edges out the newer mobile chip in every measured workload, though the margins are smaller than the core-count disparity might suggest.

Head-to-Head Benchmarks

The Opteron 6378 wins all six shared benchmark comparisons, but the victories are uniform and narrow. In Cinebench R15 multi-core, the Opteron scores 504 against the i7's 454, a delta of 11%. The single-core R15 result shows a similar gap: 71 to 64, or 10.9% in favor of AMD. This pattern repeats across every Cinebench version. In R20 multi-core, the Opteron posts 2102 versus 1895, again an 11% advantage. The R20 single-core test yields 296 against 267, a 10.9% lead.

The R23 results continue the trend. Multi-core sees the Opteron at 5005 and the i7 at 4512, a 10.9% difference. Single-core in R23 gives the Opteron 706 versus 637, a 10.8% margin. What stands out is the consistency: every delta falls between 10.8% and 11.0%. This suggests the performance gap is largely a function of architectural throughput rather than workload-specific strengths. The i7-4712HQ does have additional Geekbench results — 2734 multi-core and 923 single-core — but the Opteron has no Geekbench scores in the data, so those cannot be compared directly.

The practical interpretation is straightforward: the Opteron is roughly 11% faster across all Cinebench generations, but the i7 is never more than 11% behind. For a chip with four times the cores, that is a surprisingly small margin. The i7's 8 threads and higher per-core efficiency close much of the gap that raw core count would otherwise create. Notably, the Opteron's nearest rival is the Intel Core i5-7300HQ with an average score of 1448, just 0.1% higher, while the i7's closest competitor is the AMD Ryzen 5 2400G at 1439, 0.2% lower. Both processors sit in a dense cluster of mid-range parts, making their head-to-head results all the more telling.

Architecture Differences

The architectural divide is stark. The Opteron 6378 uses AMD's Piledriver architecture on the Abu Dhabi codename, built on a 32 nm process at GlobalFoundries. It packs 16 cores and 16 threads across two dies, each measuring 315 mm², for a combined die size of 630 mm² and 2,400 million transistors. The i7-4712HQ uses Intel's Haswell architecture, fabricated on a 22 nm process at Intel, with a single 177 mm² die containing 1,400 million transistors. The process node difference — 32 nm versus 22 nm — explains much of the power and efficiency gap.

Cache configurations differ fundamentally. The Opteron has 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die, meaning 16 MB total across its two dies. The i7 has 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. The Opteron's larger aggregate cache serves 16 cores, while the i7's smaller cache serves 4 cores with 8 threads. Memory support also diverges: the Opteron runs DDR3 in quad-channel mode with 59.7 GB/s bandwidth and ECC support, while the i7 runs DDR3 in dual-channel mode with 25.6 GB/s and no ECC. The Opteron's bandwidth advantage is more than double.

PCIe generations differ as well. The Opteron uses PCIe Gen 2, while the i7 uses Gen 3 with 16 lanes from the CPU. The i7 also integrates Intel HD 4600 graphics, which the Opteron lacks entirely. The Opteron is a server/workstation part on AMD Socket G34, while the i7 is a mobile part on Intel BGA 1364. Both have locked multipliers and are end-of-life, with the Opteron released in November 2012 and the i7 in March 2014. The Opteron carries a launch MSRP of $867; the i7's launch MSRP is $378.

Where Each One Wins

The Opteron 6378 wins every benchmark where both chips have results, but the context matters. Its six victories all come in Cinebench R15, R20, and R23, covering both multi-core and single-core variants. The 11% margin in single-core tests is particularly notable, since it shows the older Piledriver core is not wholly outclassed by Haswell per-thread. For workloads that rely on Cinebench-style rendering and ray tracing, the Opteron is the clear pick.

The i7-4712HQ wins where the data does not directly compare. It has Geekbench scores — 2734 multi-core and 923 single-core — that the Opteron lacks, so it claims an uncontested victory in that benchmark suite. More practically, the i7's 37 W TDP against the Opteron's 115 W makes it the only viable choice for mobile or thermally constrained environments. The i7 also brings integrated graphics, enabling systems without a discrete GPU, which the Opteron cannot offer. For users who need a laptop CPU, the i7 is the only option that fits.

The Opteron's nearest rivals include the Core i5-7300HQ (0.1% higher average score) and Xeon E3-1505L v5 (0.1% lower), indicating it competes with mid-range desktop and mobile parts despite its server designation. The i7's rivals include the Ryzen 5 2400G (0.2% higher) and Core i7-2600K (0.2% lower), showing it sits in a similar performance tier. Neither chip dominates its peer group; both are mid-pack performers.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6378 has 16 cores and 16 threads, while the Intel Core i7-4712HQ has 4 cores and 8 threads.

Q: What is the performance difference in multi-core workloads?

A: The Opteron leads by 10.9% in Cinebench R20 multi-core (2102 vs 1895) and by 11% in R15 multi-core (504 vs 454). In R23 multi-core, the Opteron scores 5005 versus 4512, a 10.9% advantage.

Q: Does the Intel chip have any benchmark wins?

A: No. The Opteron wins all six head-to-head benchmarks. The i7 has additional Geekbench scores (2734 multi-core, 923 single-core) that the Opteron does not have, so those are uncontested.

Q: What are the TDP differences?

A: The Opteron has a TDP of 115 W, while the i7-4712HQ has a TDP of 37 W. The i7 draws less than a third of the power.

Q: Which chip supports ECC memory?

A: The Opteron 6378 supports ECC memory. The i7-4712HQ does not.

Q: How do their average benchmark scores compare?

A: The Opteron averages 1447 across all tests, and the i7 averages 1436. This places the Opteron at the 38th percentile of all CPUs and the i7 at the 37th.

The Verdict

The data is unambiguous: the AMD Opteron 6378 is the faster processor in every directly comparable benchmark. Its 11% lead across all Cinebench tests — both single-core and multi-core — is consistent and reproducible. For server or workstation workloads that can utilize 16 cores and 16 threads, the Opteron is the better performer. Its quad-channel memory with 59.7 GB/s bandwidth and ECC support further suit it for data-intensive, error-sensitive computing.

The Intel Core i7-4712HQ wins on efficiency and integration. Its 37 W TDP is 78 W lower than the Opteron's 115 W, making it the only choice for battery-powered laptops. The integrated Intel HD 4600 graphics removes the need for a separate GPU, and its BGA 1364 socket is designed for mobile systems. The i7's 25.6 GB/s dual-channel memory is sufficient for its 4-core design, and its PCIe Gen 3 support is a generation ahead of the Opteron's Gen 2.

Yet the average benchmark scores tell a more nuanced story. The Opteron's 1447 average is only 11 points higher than the i7's 1436 — less than 1%. In the percentile rankings, they sit one point apart (38th versus 37th). This means that for general-purpose computing, the two chips perform nearly identically despite their vastly different architectures. The Opteron's core advantage is real but modest in absolute terms. The i7 achieves 95% of the Opteron's performance with one-quarter the cores and one-third the power draw. The choice is not about raw speed — it is about platform: server density versus mobile portability.

Specification Differences

| Specification | AMD Opteron 6378 | Intel Core i7-4712HQ |

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

| Cores | 16 | 4 |

| Threads | 16 | 8 |

| Base Clock | 2.40 GHz | 2.30 GHz |

| Boost Clock | 3.30 GHz | 3.30 GHz |

| TDP | 115 W | 37 W |

| Socket | AMD Socket G34 | Intel BGA 1364 |

| Architecture | Piledriver | Haswell |

| Codename | Abu Dhabi | Haswell |

| Process Node | 32 nm | 22 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 2,400 million | 1,400 million |

| Die Size | 2x 315 mm² | 177 mm² |

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

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

| L3 Cache | 8 MB (per die) | 6 MB (shared) |

| Memory Support | DDR3 | DDR3 |

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

| Memory Bandwidth | 59.7 GB/s | 25.6 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 2 | Gen 3, 16 Lanes (CPU only) |

| Integrated Graphics | None | Intel HD 4600 |

| Market Segment | Server/Workstation | Mobile |

| Release Date | 2012-11-04 | 2014-03-31 |

| Launch MSRP | $867 | $378 |

| Part Number | OS6378WKTGGHK | SR1PZ |