AMD Opteron 6376 vs Intel Core i5-7400T Comparison

The AMD Opteron 6376 and Intel Core i5-7400T occupy very different positions in the processor landscape. The Opteron is a 16-core server part from 2012, built on a 32 nm process, while the i5-7400T is a 4-core desktop chip from 2017 on 14 nm. The recorded benchmark data shows a clear pattern: the Opteron wins every Cinebench test in the head-to-head comparison, though the i5 offers features like integrated graphics and a much lower TDP. This analysis walks through the architecture, specifications, and benchmark results to determine which processor suits which workload.

The Verdict

Based strictly on the recorded measurements, the AMD Opteron 6376 is the superior performer in all six head-to-head Cinebench tests. It leads by margins between 18.6% and 19.6% across single-core and multi-core workloads. For any task that relies on raw CPU compute, such as rendering or multi-threaded processing, the Opteron is the clear choice. The Intel Core i5-7400T, however, is the only one of the two with integrated graphics (HD 630) and a TDP of 35 W compared to the Opteron's 115 W. That makes the i5 more suitable for compact, power-constrained systems or builds that do not use a discrete GPU. The data does not support the i5 for performance-critical applications, but its lower power draw and integrated graphics give it a distinct niche.

Architecture Differences

The two processors come from different eras and design philosophies. The Opteron 6376 uses AMD's Piledriver architecture, codenamed Abu Dhabi, and is part of the Opteron 6000 series. It is built on a 32 nm process at GlobalFoundries, with 2,400 million transistors and a die size of 2x 315 mm². The i5-7400T uses Intel's Kaby Lake architecture, also its codename, on a 14 nm process at Intel. The i5's transistor count and die size are not recorded in the database.

Core counts differ dramatically. The Opteron has 16 cores and 16 threads, while the i5 has 4 cores and 4 threads. The Opteron's cache hierarchy is also larger: 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. The i5 has 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. Memory support diverges as well. The Opteron uses DDR3 with a quad-channel bus and a bandwidth of 59.7 GB/s, and it supports ECC memory. The i5 uses DDR4 with a dual-channel bus and 38.4 GB/s bandwidth, with no ECC support. The Opteron has PCIe Gen 2, while the i5 has PCIe Gen 3 with 16 lanes (CPU only). The Opteron has no integrated graphics; the i5 includes HD 630.

The market segments reflect their intended uses: the Opteron is a server/workstation part, while the i5 is a desktop chip. The Opteron is end-of-life, while the i5 is active. Release dates are 2012-11-04 for the Opteron and 2017-01-02 for the i5.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6376 has 16 cores and 16 threads, while the Intel Core i5-7400T has 4 cores and 4 threads.

Q: Which processor has a higher boost clock?

A: The Opteron 6376 boosts to 3.20 GHz, while the i5-7400T boosts to 3.00 GHz. The i5 has a slightly higher base clock at 2.40 GHz versus 2.30 GHz.

Q: Does the i5-7400T support ECC memory?

A: No. The i5-7400T does not support ECC memory. The Opteron 6376 does support ECC.

Q: Which processor has integrated graphics?

A: The Intel Core i5-7400T includes HD 630 integrated graphics. The AMD Opteron 6376 has no integrated graphics.

Q: What is the memory bandwidth difference?

A: The Opteron 6376 has a memory bandwidth of 59.7 GB/s with quad-channel DDR3, while the i5-7400T has 38.4 GB/s with dual-channel DDR4.

Q: Which processor is newer?

A: The i5-7400T was released on 2017-01-02, while the Opteron 6376 was released on 2012-11-04.

Specification Differences

The following table lists the fields where the two processors differ, based on the database records.

| Field | AMD Opteron 6376 | Intel Core i5-7400T |

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

| Cores | 16 | 4 |

| Threads | 16 | 4 |

| Base Clock | 2.30 GHz | 2.40 GHz |

| Boost Clock | 3.20 GHz | 3.00 GHz |

| TDP | 115 W | 35 W |

| Socket | AMD Socket G34 | Intel Socket 1151 |

| Architecture | Piledriver | Kaby Lake |

| Process Node | 32 nm | 14 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 2,400 million | Not recorded |

| Die Size | 2x 315 mm² | Not recorded |

| 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 | DDR4 |

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

| Memory Bandwidth | 59.7 GB/s | 38.4 GB/s |

| ECC Memory | Yes | No |

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

| Integrated Graphics | None | HD 630 |

| Market Segment | Server/Workstation | Desktop |

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

| Release Date | 2012-11-04 | 2017-01-02 |

| Launch MSRP | $703 | Not recorded |

| Part Number | OS6376WKTGGHK | SR332 |

Head-to-Head Benchmarks

The database includes six Cinebench tests, and the Opteron 6376 wins all of them. The margins are consistent, ranging from 18.6% to 19.6%. In Cinebench R15 multi-core, the Opteron scores 477 against the i5's 401, a 19% lead. In single-core, the Opteron scores 67 versus 56, a 19.6% advantage. Moving to Cinebench R20, the Opteron leads multi-core with 1989 to 1672, again 19%, and single-core with 280 to 236, an 18.6% gap. In Cinebench R23, the Opteron scores 4736 to 3981 in multi-core, a 19% difference, and 668 to 562 in single-core, an 18.9% lead.

These results show that the Opteron's advantage is not limited to multi-threaded workloads. Even in single-core tests, where the i5's newer architecture might be expected to help, the Opteron still wins by nearly 19%. The i5 does have additional Geekbench scores in the database (multi-core 2864, single-core 1014), but the Opteron has no corresponding Geekbench results, so a direct comparison is not possible from the recorded data.

Where Each One Wins

The Opteron 6376 wins every recorded Cinebench benchmark, making it the stronger choice for compute-intensive tasks such as rendering, scientific simulation, or any workload that can use its 16 cores. Its higher memory bandwidth (59.7 GB/s) and ECC support also position it for server or workstation environments where data integrity and throughput matter. The i5-7400T, on the other hand, has no benchmark wins in the head-to-head set, but it offers features that the Opteron lacks. Its integrated HD 630 graphics allow it to run in systems without a discrete GPU, and its 35 W TDP makes it far easier to cool and power. The i5 also uses a newer 14 nm process and supports DDR4 memory, though with lower bandwidth. For a low-power desktop or a compact build that does not require heavy compute, the i5-7400T is the practical option. For raw performance, the Opteron 6376 is the definitive winner according to the data.