AMD Opteron 6348 vs Intel Core i5-1035G7 Comparison

The Intel Core i5-1035G7 and AMD Opteron 6348 represent two completely different eras and design philosophies in computing. The data shows a surprisingly close contest in raw benchmark scores, despite the Opteron being a 12-core server part from 2012 and the i5 being a 4-core mobile processor from 2019. Across six Cinebench tests, the Intel chip wins every single matchup, though by margins of just 0.9% to 1.1%, making this one of the tightest head-to-head comparisons in the database.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Opteron 6348 has 12 cores and 12 threads, while the Intel Core i5-1035G7 has 4 cores and 8 threads. The Opteron has triple the core count but lacks hyper-threading, which explains why the Intel part with half the physical cores can stay competitive.

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

A: The Intel Core i5-1035G7 wins all three multi-core Cinebench tests. In Cinebench R23 multi-core, it scores 6736 against the Opteron's 6672, a 1% advantage. In Cinebench R20 multi-core, the margin is identical at 1%, with scores of 2829 versus 2802.

Q: How do the single-core scores compare?

A: The Intel chip again wins every single-core test, but the margins are tiny. The largest single-core delta is in Cinebench R15, where Intel leads 95 to 94, a 1.1% difference. In Cinebench R23 single-core, Intel scores 951 versus 942 for AMD, a 1% lead.

Q: What are the TDP and market segment differences?

A: The Intel Core i5-1035G7 is a 15W mobile processor, while the AMD Opteron 6348 is a 115W server/workstation part. The Opteron consumes nearly eight times the power, yet still cannot beat the Intel chip in any of the six head-to-head benchmarks.

Q: Which processor supports ECC memory?

A: The AMD Opteron 6348 supports ECC memory, while the Intel Core i5-1035G7 does not. This is a defining feature for the server market segment where data integrity is critical.

Q: What are the release dates and current production status?

A: The AMD Opteron 6348 was released on November 4, 2012, and is end-of-life. The Intel Core i5-1035G7 was released on July 31, 2019, and remains active in production.

Architecture Differences

The architectural chasm between these two CPUs is vast. The Intel Core i5-1035G7 is built on Intel's 10 nm process node and uses the Ice Lake architecture with Sunny Cove-U cores. The AMD Opteron 6348 uses the Piledriver architecture on GlobalFoundries' 32 nm process, codenamed Abu Dhabi. The process node difference alone explains much of the efficiency gap: Intel's 10 nm node allows the i5 to deliver competitive performance at just 15W TDP, while the Opteron requires 115W.

The cache layouts are fundamentally different. The Intel chip has 80 KB of L1 cache per core and 256 KB of L2 cache per core, with a shared 6 MB L3 cache. The AMD Opteron has a total of 576 KB L1 cache, 2 MB of L2 cache per module, and 8 MB of L3 cache per die. The Opteron's dual-die design, with each die measuring 315 mm², totals 2,400 million transistors across two 315 mm² dies. The Intel chip's die is just 123 mm².

Memory support diverges sharply. The Intel i5-1035G7 supports DDR4 memory over a dual-channel bus, providing 51.2 GB/s of bandwidth. The AMD Opteron 6348 supports DDR3 memory over a quad-channel bus, delivering 59.7 GB/s. The Opteron's quad-channel design gives it higher raw memory bandwidth despite using older DDR3 technology, though the Intel part compensates with a newer memory standard.

The integrated graphics situation differs completely. The Intel chip includes Iris Plus integrated graphics, while the AMD Opteron has no integrated graphics at all, requiring a discrete GPU. The PCIe generations also differ, with Intel supporting Gen 3 and AMD limited to Gen 2. The sockets are incompatible: Intel BGA 1526 for the i5 versus AMD Socket G34 for the Opteron.

Head-to-Head Benchmarks

The head-to-head data shows a clean sweep for the Intel Core i5-1035G7, winning all six Cinebench tests. However, the margins are remarkably narrow given the architectural differences. In Cinebench R15 multi-core, the Intel chip scores 678 against the Opteron's 672, a 0.9% advantage. The single-core R15 test shows Intel leading 95 to 94, a 1.1% margin — the largest delta in the entire comparison.

Moving to Cinebench R20, the pattern holds. The Intel i5-1035G7 scores 2829 in multi-core versus 2802 for the Opteron, again a 1% lead. Single-core R20 results show 399 versus 395, another 1% edge. The consistency is striking: every single test lands at either 0.9%, 1%, or 1.1% difference.

Cinebench R23, the most demanding test in the suite, tells the same story. The Intel chip scores 6736 in multi-core against the Opteron's 6672, a 1% lead. Single-core R23 shows 951 versus 942, also a 1% difference. The Intel processor wins all six head-to-head matchups, with zero wins for the AMD part.

The average benchmark scores reflect this proximity. The Intel i5-1035G7 has an average benchmark score of 1948, placing it in the 44th percentile of all CPUs. The AMD Opteron 6348 has an average score of 1930, sitting in the 43rd percentile. The nearest rivals for the Intel chip include the Intel Xeon E3-1230 v5 (1947, 0.1% delta) and the AMD Ryzen 5 PRO 3400GE (1954, -0.3% delta). The Opteron's nearest rivals include the Intel Core i7-1180G7 (1930, 0% delta) and the Intel Core i3-10300 (1934, -0.2% delta).

The Verdict

The data paints a clear picture: the Intel Core i5-1035G7 is the outright winner in every benchmark category, taking all six head-to-head tests. The margins are small — never exceeding 1.1% — but they are consistent across every single test. This is a remarkable result for the Intel part, which achieves this performance at 15W TDP versus the Opteron's 115W TDP, and with only 4 cores versus 12.

For mobile users, the Intel chip is the only sensible choice. It delivers higher scores in every workload, consumes a fraction of the power, includes integrated graphics, supports modern DDR4 memory, and remains in active production. The Opteron's 12 cores and 12 threads provide no performance advantage in these Cinebench tests, despite triple the core count.

For server and workstation applications, the AMD Opteron 6348 does offer features the Intel chip lacks. It supports ECC memory, which is critical for data integrity in server environments. It also provides higher memory bandwidth at 59.7 GB/s through its quad-channel DDR3 setup, compared to 51.2 GB/s for the Intel's dual-channel DDR4. The Opteron's launch MSRP was $575, and it was designed for the server/workstation market segment.

The benchmark data shows that raw core count does not guarantee performance. The Intel i5-1035G7, with its modern 10 nm process, newer architecture, and efficient design, outperforms the older 32 nm Piledriver server chip in every Cinebench test. The Opteron's 12 cores cannot overcome its architectural disadvantages, and the 43rd percentile ranking versus the i5's 44th percentile shows how close the overall averages are.

The choice depends entirely on the use case. For general computing, mobile workloads, or any task where power efficiency matters, the Intel Core i5-1035G7 is superior in every measurable way. For enterprise environments requiring ECC memory and legacy server infrastructure, the AMD Opteron 6348 remains a viable, though end-of-life, option. The data unequivocally favors the Intel chip for performance.

Specification Differences

| Specification | Intel Core i5-1035G7 | AMD Opteron 6348 |

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

| Cores | 4 | 12 |

| Threads | 8 | 12 |

| Base Clock | 1.20 GHz | 2.80 GHz |

| Boost Clock | 3.70 GHz | 3.40 GHz |

| TDP | 15 W | 115 W |

| Socket | Intel BGA 1526 | AMD Socket G34 |

| Architecture | Ice Lake | Piledriver |

| Process Node | 10 nm | 32 nm |

| Foundry | Intel | GlobalFoundries |

| Transistors | N/A | 2,400 million |

| Die Size | 123 mm² | 2x 315 mm² |

| L1 Cache | 80 KB (per core) | 576 KB (total) |

| 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 | 51.2 GB/s | 59.7 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3 | Gen 2 |

| Integrated Graphics | Iris Plus | None |

| Market Segment | Mobile | Server/Workstation |

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

| Release Date | 2019-07-31 | 2012-11-04 |

| Part Number | SRGKJ | OS6348WKTCGHK |

| Multiplier Unlocked | No | No |