CPU Comparison

The AMD Opteron 6348 and Intel Xeon E-2314 occupy the same percentile ranking (43rd) among all CPUs, yet they achieve this through fundamentally different designs: the Opteron is a 12-core, 12-thread Piledriver part from 2012, while the Xeon is a 4-core, 4-thread Rocket Lake-E chip from 2021. In direct head-to-head Cinebench testing, the Opteron wins all six benchmarks, but the margins are remarkably slim, never exceeding 1.1%, which suggests the architectural gap between a decade-old server processor and a modern entry Xeon is far smaller than their release dates imply.

Head-to-Head Benchmarks

The Opteron 6348 takes every single benchmark in this comparison, but the victories are narrow. In Cinebench R15 multi-core, the Opteron scores 672 against the Xeon’s 666, a 0.9% advantage. The single-core R15 test shows a 1.1% lead (94 vs 93), which is the largest delta in the entire matchup. Moving to Cinebench R20, the Opteron again leads in multi-core with 2802 vs 2775 (1% ahead) and in single-core with 395 vs 391 (also 1% ahead). The pattern repeats in Cinebench R23: the Opteron posts 6672 in multi-core against the Xeon’s 6609 (1% delta), and 942 in single-core versus 933 (1% delta).

The consistency of these results is notable. Across six benchmarks spanning three Cinebench versions, the Opteron’s win margin stays tightly clustered between 0.9% and 1.1%. This suggests the two processors are effectively performance peers in rendering workloads, despite the Opteron having triple the core count. The Xeon’s much higher boost clock (4.50 GHz vs 3.40 GHz) and newer architecture (Rocket Lake vs Piledriver) compensate almost exactly for the Opteron’s 12-core advantage over the Xeon’s 4 cores.

When placed against their respective nearest rivals, both CPUs show similar positioning. The Opteron’s average benchmark score of 1930 puts it exactly level with the Intel Core i7-1180G7 (0% delta), 0.2% behind the Intel Core i3-10300 (1934), and 0.3% ahead of the Intel Xeon E3-1231 v3 (1925). The Xeon E-2314’s average score of 1911 sits 0% apart from both the Intel Xeon E3-1575M v5 and AMD Ryzen 5 PRO 2400GE (both 1910), while trailing the Intel Xeon E3-1285 v4 by 0.2% (1908) and the Intel Xeon E5-2620 v3 by 0.2% (1907). The deltaPct values in the Opteron’s rival list range from -0.2% to 0.4%, while the Xeon’s rivals span 0% to 0.2%, indicating both processors sit in a tightly contested mid-field.

Where Each One Wins

The Opteron 6348 wins every benchmark in this head-to-head, so the question becomes not which CPU wins, but where each CPU’s strengths could tip a real-world decision. The Opteron’s advantage is uniform across all six tests, but its wins are built on core count. With 12 cores and 12 threads, it can handle more concurrent threads than the Xeon’s 4 cores and 4 threads. In workloads that scale linearly with thread count, such as software compilation, video encoding, or virtual machine density, the Opteron’s raw core presence provides headroom the Xeon cannot match.

The Xeon E-2314’s case rests on efficiency and platform modernity rather than benchmark victories. Its 65W TDP versus the Opteron’s 115W TDP means it draws significantly less power while delivering 98.9% to 99.1% of the Opteron’s multi-core performance in Cinebench R23 (6609 vs 6672). The Xeon also supports DDR4 memory versus the Opteron’s DDR3, and offers PCIe Gen 4 with 20 CPU lanes against the Opteron’s PCIe Gen 2. For single-threaded responsiveness, the Xeon’s 4.50 GHz boost clock is 32% higher than the Opteron’s 3.40 GHz, though this does not translate into a single-core benchmark win, the Opteron still edges ahead by 1% in R23 single-core (942 vs 933).

For workloads that are latency-sensitive and lightly threaded, the Xeon’s higher boost clock and modern architecture make it the more logical choice, even if the benchmark data shows the Opteron nominally ahead. Conversely, for throughput-oriented tasks that can use all available threads, the Opteron’s 12 cores provide a margin, however small, that the Xeon cannot overcome. The data shows a tie in percentile ranking (43rd for both), reinforcing that these CPUs are competitive across the board, with the Opteron’s core count and the Xeon’s clock speed nearly canceling each other out.

Architecture Differences

The Opteron 6348 is built on AMD’s Piledriver architecture, codenamed Abu Dhabi, using a 32 nm process at GlobalFoundries. It packs 2,400 million transistors across a dual-die design with each die measuring 315 mm², for a total die size of 2x 315 mm². The cache hierarchy is split per module and per die: 576 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. It uses the AMD Socket G34 and supports quad-channel DDR3 memory with a theoretical bandwidth of 59.7 GB/s. The chip is part of the Opteron 6000 series and was released in November 2012 with a launch MSRP of $575.

The Xeon E-2314 is built on Intel’s Rocket Lake architecture, specifically Rocket Lake-E, using a 14 nm process at Intel. Its die size is 276 mm², and the cache layout is per-core: 80 KB of L1 per core, 512 KB of L2 per core, and 8 MB of shared L3. It fits the Intel Socket 1200 and supports dual-channel DDR4 memory with a bandwidth of 51.2 GB/s. The Xeon offers PCIe Gen 4 with 20 CPU-only lanes, while the Opteron is limited to PCIe Gen 2. The Xeon belongs to the Xeon E-2300 series and was released in September 2021 with a launch MSRP of $182.

The transistor count for the Xeon is not listed, but the process node difference is stark: 32 nm versus 14 nm. The Opteron’s 12 cores are arranged in modules sharing L2 cache, a design choice that reduces die area but can create contention. The Xeon’s 4 cores each get dedicated L2, and the shared 8 MB L3 is identical in size to the Opteron’s per-die L3, though the Opteron has two dies, so total L3 across the package is larger. The Opteron’s quad-channel memory bus provides 16.6% more theoretical bandwidth than the Xeon’s dual-channel setup (59.7 GB/s vs 51.2 GB/s), yet the Xeon’s DDR4 support likely offers better real-world latency characteristics.

Both CPUs support ECC memory, and neither has integrated graphics. Both have locked multipliers, so overclocking is not an option. The Opteron is marked end-of-life, while the Xeon remains active in production. The part numbers differ (OS6348WKTCGHK for AMD, SRKN8 for Intel), and the Opteron’s release date predates the Xeon by nearly nine years.

FAQ

Q: Which CPU has more cores and threads?

A: The AMD Opteron 6348 has 12 cores and 12 threads, while the Intel Xeon E-2314 has 4 cores and 4 threads.

Q: What are the boost clock differences?

A: The Opteron 6348 boosts to 3.40 GHz, while the Xeon E-2314 boosts to 4.50 GHz. The base clocks are identical at 2.80 GHz for both.

Q: How do their memory bandwidths compare?

A: The Opteron supports quad-channel DDR3 with a bandwidth of 59.7 GB/s, while the Xeon supports dual-channel DDR4 with a bandwidth of 51.2 GB/s. The Opteron has a 16.6% higher theoretical bandwidth figure.

Q: Did the Opteron win every benchmark in this comparison?

A: Yes, the Opteron 6348 won all six head-to-head benchmarks, with delta percentages ranging from 0.9% to 1.1% across Cinebench R15, R20, and R23 in both single-core and multi-core tests.

Q: What is the TDP of each processor?

A: The Opteron 6348 has a TDP of 115W, while the Xeon E-2314 has a TDP of 65W.

Q: Which CPU supports PCIe Gen 4?

A: The Xeon E-2314 supports PCIe Gen 4 with 20 CPU-only lanes. The Opteron 6348 is limited to PCIe Gen 2.

Specification Differences

| Specification | AMD Opteron 6348 | Intel Xeon E-2314 |

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

| Cores | 12 | 4 |

| Threads | 12 | 4 |

| Boost Clock | 3.40 GHz | 4.50 GHz |

| TDP | 115W | 65W |

| Socket | AMD Socket G34 | Intel Socket 1200 |

| Architecture | Piledriver | Rocket Lake |

| Codename | Abu Dhabi | Rocket Lake-E |

| Process Node | 32 nm | 14 nm |

| Foundry | GlobalFoundries | Intel |

| Die Size | 2x 315 mm² | 276 mm² |

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

| L2 Cache | 2 MB (per module) | 512 KB (per core) |

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

| Memory Support | DDR3 | DDR4 |

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

| Memory Bandwidth | 59.7 GB/s | 51.2 GB/s |

| PCIe | Gen 2 | Gen 4, 20 Lanes (CPU only) |

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

| Release Date | 2012-11-04 | 2021-09-07 |

| Launch MSRP | $575 | $182 |

| Part Number | OS6348WKTCGHK | SRKN8 |

| Transistors | 2,400 million | Not listed |