AMD Opteron 6328 vs Intel Xeon W-2102 Comparison

The AMD Opteron 6328 and Intel Xeon W-2102 are both end-of-life server/workstation processors, but they represent very different design philosophies and eras. The Opteron is an eight-core Piledriver part from 2012, while the Xeon is a four-core Skylake part from 2017. The benchmark data shows a remarkably consistent outcome: the older AMD chip wins every Cinebench test, but by a narrow margin. This makes the comparison less about raw speed and more about platform features and architectural trade-offs.

Head-to-Head Benchmarks

The recorded Cinebench results show a clean sweep for the AMD Opteron 6328, with a lead of roughly 3% across every workload. In Cinebench R15 multi-core, the Opteron scores 454 against the Xeon's 440, a 3.2% advantage. The single-core R15 test shows the same pattern: 64 versus 62, again a 3.2% delta. Moving to Cinebench R20, the Opteron's multi-core score of 1894 beats the Xeon's 1835 by 3.2%, and the single-core score of 267 beats 259 by 3.1%. The newest test in the database, Cinebench R23, follows the same trend: the Opteron scores 4510 multi-core and 636 single-core, while the Xeon scores 4370 and 617, representing 3.2% and 3.1% leads respectively.

The consistency of these margins is striking. Across six benchmarks, the winner is always the same, and the delta never varies beyond 3.1% to 3.2%. This suggests the performance gap is structural, not workload-dependent. The Opteron's advantage likely comes from having twice the core count, which helps even in single-threaded tests because the Piledriver architecture's module design allows for higher peak clocks. The Xeon's base clock is 2.90 GHz with no boost clock listed, while the Opteron boosts to 3.80 GHz. That 0.9 GHz difference in maximum frequency explains why the AMD part edges ahead even in single-core workloads.

The average benchmark score reinforces this picture. The Opteron 6328 has an average score of 1304, placing it in the 35th percentile of all CPUs in the database. The Xeon W-2102 averages 1264, also in the 35th percentile. Their nearest rivals are telling: the Opteron sits within 0.7% of the Intel Core i7-3770T and Intel Core i5-6400, while the Xeon's closest competitor is the Intel Core i3-1005G1, just 0.1% behind. Neither processor is a performance outlier; they are both firmly mid-pack, but the Opteron has a slight edge.

Architecture Differences

The two chips are built on fundamentally different foundations. The Opteron 6328 uses AMD's Piledriver architecture, codenamed Abu Dhabi, and is manufactured on a 32 nm process at GlobalFoundries. It is a dual-die design with a total of 2,400 million transistors spread across two 315 mm² dies. The Xeon W-2102 uses Intel's Skylake architecture, specifically Skylake-W, built on a 14 nm process at Intel. It is a single monolithic die measuring 484 mm², and the database does not list a transistor count for it.

Cache organization highlights the biggest architectural gulf. The Opteron has 384 KB of L1 cache, 2 MB of L2 cache per module, and 8 MB of L3 cache per die. The Xeon has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 8.25 MB of shared L3 cache. The Opteron's L2 is module-based, which means two cores share a 2 MB block, while the Xeon gives each core its own 1 MB. This is a classic trade-off: AMD's shared modules reduce die area but can cause contention, while Intel's private caches offer lower latency per core.

Memory support also differs generationally. The Opteron uses DDR3 with a quad-channel bus and a measured memory bandwidth of 59.7 GB/s. The Xeon uses DDR4, also quad-channel, but with a higher bandwidth of 85.3 GB/s. Both support ECC memory, which is essential for server workloads. PCIe connectivity is another differentiator: the Opteron is limited to Gen 2, while the Xeon provides Gen 3 with 48 lanes from the CPU alone.

The release dates are five years apart. The Opteron launched on November 4, 2012, with a launch MSRP of $575. The Xeon launched on August 28, 2017, with a launch MSRP of $202. Both are now end-of-life, and neither has an unlocked multiplier.

Where Each One Wins

The benchmark data gives the Opteron 6328 all six wins, which makes the use-case split seem one-sided, but the margins are small enough that real-world differences come down to platform features rather than raw compute.

The Opteron's strongest case is in multi-threaded rendering and compute tasks that can use all eight cores. Its 3.2% lead in R15, R20, and R23 multi-core tests, while modest, is consistent. For an older server environment already on a G34 socket, this chip offers a straightforward upgrade path with eight physical cores. Its higher boost clock of 3.80 GHz also helps in lightly threaded workloads where a single core can ramp up.

The Xeon W-2102's advantages are not visible in the Cinebench scores, but they exist in the platform. Its DDR4 memory support with 85.3 GB/s bandwidth is a significant upgrade over the Opteron's DDR3 at 59.7 GB/s. For memory-bound tasks like database queries or large in-memory data sets, that extra bandwidth can close or reverse the small compute deficit. The Xeon also has PCIe Gen 3 with 48 lanes, which is essential for modern GPUs, NVMe storage, and high-speed networking. The Opteron's Gen 2 PCIe is a bottleneck for any contemporary expansion card.

In single-threaded tests, the Opteron wins by 3.1% to 3.2%, but the Xeon's per-core L2 cache at 1 MB is larger than the Opteron's shared 2 MB per module, which could help in latency-sensitive workloads. The Xeon's 14 nm process also means it likely runs cooler per core, though the TDP figures are close: 115 W for the Opteron and 120 W for the Xeon.

Specification Differences

The two processors differ in nearly every major specification except market segment and ECC support. The table below summarizes the key contrasts:

| Specification | AMD Opteron 6328 | Intel Xeon W-2102 |

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

| Cores | 8 | 4 |

| Threads | 8 | 4 |

| Base Clock | 3.20 GHz | 2.90 GHz |

| Boost Clock | 3.80 GHz | None listed |

| TDP | 115 W | 120 W |

| Socket | AMD Socket G34 | Intel Socket 2066 |

| Architecture | Piledriver | Skylake |

| Process Node | 32 nm | 14 nm |

| L1 Cache | 384 KB | 64 KB per core |

| L2 Cache | 2 MB per module | 1 MB per core |

| L3 Cache | 8 MB per die | 8.25 MB shared |

| Memory Support | DDR3 | DDR4 |

| Memory Bandwidth | 59.7 GB/s | 85.3 GB/s |

| PCIe | Gen 2 | Gen 3, 48 lanes (CPU only) |

| Release Date | 2012-11-04 | 2017-08-28 |

| Launch MSRP | $575 | $202 |

The core count difference is the most obvious: 8 versus 4. The Opteron compensates for its older architecture with raw core count, while the Xeon relies on a newer process and higher memory bandwidth. The cache designs are incompatible in philosophy, and the memory generation jump matters for anyone building a new system.

FAQ

Q: Does the AMD Opteron 6328 beat the Intel Xeon W-2102 in every benchmark?

A: Yes. The database records six Cinebench tests (R15, R20, and R23, each in multi-core and single-core), and the Opteron wins all six with deltas between 3.1% and 3.2%.

Q: How much faster is the Opteron in multi-core workloads?

A: In Cinebench R23 multi-core, the Opteron scores 4510 versus the Xeon's 4370, a 3.2% lead. The R20 multi-core test shows 1894 versus 1835, also a 3.2% advantage.

Q: What memory bandwidth does each processor support?

A: The Opteron supports DDR3 with a quad-channel bus and 59.7 GB/s bandwidth. The Xeon supports DDR4 with a quad-channel bus and 85.3 GB/s bandwidth.

Q: Which processor has more PCIe lanes?

A: The Xeon W-2102 offers PCIe Gen 3 with 48 lanes from the CPU. The Opteron 6328 is limited to PCIe Gen 2, with no lane count listed.

Q: Are both processors still in production?

A: No. Both are end-of-life. The Opteron was released on November 4, 2012, and the Xeon on August 28, 2017.

Q: What are the launch MSRPs?

A: The Opteron 6328 had a launch MSRP of $575. The Xeon W-2102 had a launch MSRP of $202.

The Verdict

The data points to a clear but narrow victory for the AMD Opteron 6328 in compute performance. It wins every Cinebench benchmark by about 3%, which is meaningful if you are running render loops or batch processing that scales across cores. Its eight cores and higher boost clock give it an edge that the Xeon's four cores cannot overcome in these specific tests.

However, the Xeon W-2102 is the better choice for a modern system build. Its DDR4 memory support with 85.3 GB/s bandwidth is a major upgrade over the Opteron's DDR3 at 59.7 GB/s, and its PCIe Gen 3 with 48 lanes is essential for current GPUs and storage devices. The 14 nm process and per-core L2 cache design make it a more efficient platform for memory-sensitive and I/O-heavy workloads.

For someone upgrading an existing G34 server, the Opteron 6328 is a drop-in improvement with a proven benchmark record. For anyone assembling a new workstation, the Xeon W-2102 offers a better foundation despite trailing in Cinebench. The 3% performance gap is real, but it is small enough that platform features should dictate the decision. Choose the Opteron for raw core count on a legacy socket, choose the Xeon for modern memory and connectivity.