AMD Opteron 6276 vs Intel Core i3-9100E Comparison

The Verdict

The benchmark data is unambiguous: the Intel Core i3-9100E wins every single recorded head-to-head test against the AMD Opteron 6276. With a 6 to 0 win count, the i3-9100E is the superior processor across all Cinebench workloads, both multi-core and single-core. The margins are consistent, ranging from 2.6% to 2.9% in the Intel chip's favor. For any workload represented by these benchmarks, the Intel Core i3-9100E is the correct choice.

The AMD Opteron 6276, despite having four times the core count (16 cores versus 4), cannot overcome the architectural efficiency gap. Its 2.9% deficit in Cinebench R23 multi-core (5395 vs 5549) demonstrates that raw core counts do not translate into proportional performance when the per-core throughput is substantially lower. The data shows a near-perfect parity in average benchmark scores (1605 for Intel, 1560 for AMD), but the Intel part achieves this with a fraction of the physical resources.

For system builders, the i3-9100E is the pick for any application where single-threaded responsiveness matters, as it leads by 2.6% to 2.9% in every single-core test. The Opteron 6276 offers no recorded advantage in any benchmark, making it difficult to justify for any workload represented in the database. The only reason to select the AMD part would be platform-level considerations outside these benchmark results, such as memory bandwidth (51.2 GB/s versus 38.4 GB/s) or PCIe generation, but the compute performance data does not favor it.

Where Each One Wins

The Intel Core i3-9100E wins all six benchmark comparisons. Breaking down the wins by workload type:

Multi-core workloads: The i3-9100E leads in Cinebench R15 multi-core (559 vs 543, a 2.9% margin), Cinebench R20 multi-core (2330 vs 2265, a 2.9% margin), and Cinebench R23 multi-core (5549 vs 5395, a 2.9% margin). This is notable because the Opteron 6276 has 16 cores and 16 threads, while the i3-9100E has only 4 cores and 4 threads. The Intel processor's higher base clock (3.10 GHz vs 2.30 GHz) and boost clock (3.70 GHz vs 3.20 GHz) combined with a more modern 14 nm process node (versus 32 nm) allow it to outperform a chip with quadruple the core count.

Single-core workloads: The i3-9100E wins Cinebench R15 single-core (78 vs 76, a 2.6% margin), Cinebench R20 single-core (328 vs 319, a 2.8% margin), and Cinebench R23 single-core (783 vs 761, a 2.9% margin). The single-core margins are slightly smaller than the multi-core margins in percentage terms, but they are still consistent wins. This indicates that the Intel architecture delivers better per-thread performance across the board.

No wins for the AMD Opteron 6276: The database records zero wins for the Opteron. Its best relative showing is in single-core tests where the margin narrows to 2.6%, but it never overtakes the Intel part. The Opteron's only potential advantage lies in its quad-channel DDR3 memory support with 51.2 GB/s bandwidth versus the i3-9100E's dual-channel DDR4 with 38.4 GB/s, but this does not translate into any Cinebench performance advantage.

Architecture Differences

The two processors represent fundamentally different design philosophies separated by seven years of technology evolution.

Process node and foundry: The Intel Core i3-9100E is built on a 14 nm process at Intel, while the AMD Opteron 6276 uses a 32 nm process at GlobalFoundries. The smaller process node allows for higher clock speeds at lower power consumption. The i3-9100E has a base clock of 3.10 GHz and boost clock of 3.70 GHz, whereas the Opteron operates at 2.30 GHz base and 3.20 GHz boost.

Core and cache architecture: The i3-9100E uses a Coffee Lake architecture with 4 cores and 4 threads. Its cache layout is per-core: 64 KB L1 per core, 256 KB L2 per core, and a shared 6 MB L3 cache. The Opteron 6276 uses the Bulldozer architecture with 16 cores and 16 threads, but its cache is organized differently: 768 KB total L1, 2 MB L2 per module, and 8 MB L3 per die. The Opteron's die size is 2x 315 mm² (dual dies) with 2,400 million transistors, while the i3-9100E has a single die of 126 mm².

Memory and PCIe: The i3-9100E supports DDR4 memory on a dual-channel bus with 38.4 GB/s bandwidth and PCIe Gen 3 with 16 lanes (CPU only). The Opteron 6276 supports DDR3 on a quad-channel bus with 51.2 GB/s bandwidth and PCIe Gen 2. Both support ECC memory, which is notable for a desktop part like the i3-9100E.

Integrated graphics: The i3-9100E includes Intel UHD Graphics 630, while the Opteron 6276 has no integrated graphics. This is a significant practical difference for systems that do not use a discrete GPU.

Socket and market segment: The i3-9100E uses Intel Socket 1151 and is classified as a Desktop processor, while the Opteron 6276 uses AMD Socket G34 and is classified as Server/Workstation. The Opteron was released in 2011, while the i3-9100E arrived in 2018. Both are end-of-life products and neither has an unlocked multiplier.

FAQ

Q: Why does a 4-core Intel chip beat a 16-core AMD chip in multi-core benchmarks?

A: The i3-9100E has significantly higher clock speeds (3.10 GHz base, 3.70 GHz boost versus 2.30 GHz base, 3.20 GHz boost) and a much more efficient 14 nm architecture compared to the Opteron's 32 nm Bulldozer design. The data shows a 2.9% lead in Cinebench R23 multi-core (5549 vs 5395), proving that per-core performance matters more than core count alone.

Q: Does the Opteron's quad-channel memory give it any advantage?

A: The Opteron 6276 does have higher memory bandwidth (51.2 GB/s versus 38.4 GB/s) and quad-channel DDR3 support versus dual-channel DDR4. However, this does not translate into any Cinebench performance wins. The i3-9100E still wins all six head-to-head benchmark tests.

Q: Which processor is better for single-threaded applications?

A: The Intel Core i3-9100E wins all three single-core benchmarks: Cinebench R15 (78 vs 76, 2.6% margin), Cinebench R20 (328 vs 319, 2.8% margin), and Cinebench R23 (783 vs 761, 2.9% margin). The higher clock speeds and newer architecture give it a clear edge in single-threaded workloads.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i3-9100E and the AMD Opteron 6276 support ECC memory. This is unusual for the i3-9100E as a desktop part, but both are listed with ECC support in the database.

Q: Which processor has integrated graphics?

A: Only the Intel Core i3-9100E has integrated graphics (Intel UHD Graphics 630). The AMD Opteron 6276 has no integrated graphics at all, requiring a discrete GPU for any display output.

Q: What is the release date difference between these two?

A: The AMD Opteron 6276 was released in 2011, while the Intel Core i3-9100E was released in 2018. This seven-year gap explains the architectural advantages of the Intel part, including the 14 nm process node versus 32 nm.

Head-to-Head Benchmarks

The head-to-head benchmark data provides a complete picture of the performance relationship between these two processors. Every test shows the Intel Core i3-9100E winning with a consistent margin.

Cinebench R15 multi-core: The i3-9100E scores 559 versus the Opteron's 543, a 2.9% advantage. This is the first and most direct comparison of multi-threaded rendering performance. Despite the Opteron's 16 cores, the i3-9100E's 4 cores deliver more aggregate performance, which is a striking result given the core count difference.

Cinebench R15 single-core: The i3-9100E wins 78 to 76, a 2.6% margin. This is the smallest percentage gap in the dataset, but it still favors the Intel chip. The single-core performance difference reflects the clock speed and IPC advantages of the Coffee Lake architecture over Bulldozer.

Cinebench R20 multi-core: The i3-9100E scores 2330 versus 2265, a 2.9% margin. This newer benchmark version shows the same relative performance as R15, confirming that the multi-core advantage is consistent across benchmark generations.

Cinebench R20 single-core: The i3-9100E wins 328 to 319, a 2.8% margin. The single-core margin here is slightly larger than in R15, suggesting that the Intel architecture scales better with newer benchmark workloads.

Cinebench R23 multi-core: The i3-9100E scores 5549 versus 5395, a 2.9% margin. This is the most demanding multi-core test in the dataset, and the Intel chip maintains its advantage. The absolute scores are higher than R20 due to the different scaling in R23, but the relative performance gap remains constant.

Cinebench R23 single-core: The i3-9100E wins 783 to 761, a 2.9% margin. This matches the multi-core R23 margin, indicating that the performance difference is uniform across both single and multi-threaded workloads in the latest benchmark version.

The consistency of these margins (2.6% to 2.9%) suggests a fundamental architectural advantage rather than a workload-specific quirk. The i3-9100E's higher clock speeds, more efficient 14 nm process, and modern Coffee Lake core design collectively overcome the Opteron's core count advantage.

Specification Differences

| Specification | Intel Core i3-9100E | AMD Opteron 6276 |

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

| Cores | 4 | 16 |

| Threads | 4 | 16 |

| Base Clock | 3.10 GHz | 2.30 GHz |

| Boost Clock | 3.70 GHz | 3.20 GHz |

| TDP | 65 W | 115 W |

| Socket | Intel Socket 1151 | AMD Socket G34 |

| Architecture | Coffee Lake | Bulldozer |

| Process Node | 14 nm | 32 nm |

| Foundry | Intel | GlobalFoundries |

| Die Size | 126 mm² | 2x 315 mm² |

| Transistors | Not listed | 2,400 million |

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

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

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

| Memory Support | DDR4 | DDR3 |

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

| Memory Bandwidth | 38.4 GB/s | 51.2 GB/s |

| ECC Memory | Yes | Yes |

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

| Integrated Graphics | UHD Graphics 630 | None |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2018-08-31 | 2011-11-13 |

| Launch MSRP | $122 | $788 |

| Unlocked Multiplier | No | No |

The specification table shows a clear generational divide. The i3-9100E uses a smaller process node, higher clocks, and less power (65 W TDP versus 115 W) while still outperforming the Opteron in every benchmark. The Opteron's advantages are limited to core count, cache capacity, memory bandwidth, and PCIe lane availability, none of which produce a benchmark win. The i3-9100E also includes integrated graphics, making it a more complete package for systems without discrete GPUs.