AMD Opteron 6378

The AMD Opteron 6378 is a 16-core, 16-thread server/workstation processor from the Opteron 6000 series. It uses the Piledriver architecture with the Abu Dhabi codename, was released on 2012-11-04, and carries a launch MSRP of $867. Its average benchmark score is 1447, and its percentileVsAllCpus is 39. In the nearest-rival data, the Opteron 6378 is separated from every listed rival by no more than 0.3 percent.

Platform and Compatibility

The Opteron 6378 uses AMD Socket G34. That socket anchors it to the Opteron 6000 product family, which is the same series designation listed in the part data. The processor has 16 cores and 16 threads; the base clock is 2.40 and the boost clock is 3.30. The architecture is Piledriver, and the codename is Abu Dhabi, which also appears in the generation string “Opteron (Abu Dhabi).”

Memory support is DDR3 with a quad-channel bus. ECC memory is supported, so the platform is positioned for workloads where memory-integrity protection matters. The rated memory bandwidth is 59.7 GB/s. PCIe connectivity is Gen 2, defining the expansion interface available on this platform.

The cache hierarchy listed in the data is 768 KB of L1 cache, 2 MB of L2 per module, and 8 MB of L3 per die. There is no integrated graphics, so a platform with its own display output or an add-in graphics solution is required. The part number is OS6378WKTGGHK. The multiplier is locked, so the processor runs under its stock clock behavior rather than user-configured frequency control.

The production status is end-of-life. Given the 2012-11-04 release date, the Socket G34 platform is a complete, mature ecosystem, and any drop-in upgrade would need to come from the same Opteron 6000 series. This limits the upgrade path to parts that already exist for the same socket and family.

Power and Thermals

The TDP of the Opteron 6378 is 115 W. That figure is the thermal envelope that any cooling solution must handle. The chip is manufactured on a 32 nm process at GlobalFoundries and packaged as two 315 mm² dies containing 2,400 million transistors. Because the package is dual-die, the thermal load originates from two places on the package, but the socket cooling solution must reject the entire 115 W envelope.

The implied cooling tier is a capable air cooler or a server-class heatsink matched to the 115 W class. The data does not indicate anything beyond that thermal class. The locked multiplier means thermal behavior is governed by the stock base and boost clock range rather than user-configured overclocking. For a server/workstation part, this is a normal design point: predictable thermal performance under sustained load matters more than tuning headroom.

Single-Thread vs Multi-Thread Behavior

The Cinebench results reveal a clear behavioral split. In Cinebench R15, the Opteron 6378 scores 504 in the multicore test and 71 in the single-core test. In Cinebench R20, the multicore score is 2102 while the single-core score is 296. In Cinebench R23, the multicore score is 5005 and the single-core score is 706.

In every benchmark generation, the multicore score is dramatically larger than the single-core score. This is the signature of a throughput-oriented server processor. Multi-threaded applications can occupy all 16 threads and extract a much larger fraction of the available compute capacity. Single-threaded or lightly threaded workloads are bounded by the lower single-core results, so a task that cannot be parallelized will not benefit from the 16-core design.

The base clock of 2.40 and boost clock of 3.30 define the frequency envelope for both lightly threaded and fully loaded operation, but the benchmark data shows that the CPU is much stronger in parallel execution. The repeated pattern across R15, R20, and R23 is consistent: the processor behaves as a multi-core workhorse rather than a high-frequency single-thread part.

How It Compares

Against the Intel Core i7-4712HQ, the Opteron 6378 is exactly level. The rival posts the same average score of 1447, and the deltaPct is 0. In aggregate benchmark terms, there is no winner between these two processors.

Against the Intel Xeon E-2104G, the Opteron 6378 holds a 0.2 percent edge. The Xeon has an average score of 1445, and the deltaPct of 0.2 puts the two chips within a fraction of a percent on the aggregate benchmark.

Against the AMD Ryzen 3 2200GE, the Opteron 6378 is also 0.2 percent ahead. The Ryzen 3 2200GE has an average score of 1444, so it sits in the same performance cluster as the Xeon, separated from the Opteron by the same narrow delta.

Against the AMD Ryzen 3 PRO 3300U, the Opteron 6378 leads by the largest margin in this group: 0.3 percent. The Ryzen 3 PRO 3300U has an average score of 1443. Even at the outer edge of the nearest-rival group, the aggregate gap is still small.

Benchmark Performance

Across the full benchmark set, the Opteron 6378 records an average score of 1447. The nearest-rival deltas are 0, 0.2, 0.2, and 0.3 percent for the Intel Core i7-4712HQ, Intel Xeon E-2104G, AMD Ryzen 3 2200GE, and AMD Ryzen 3 PRO 3300U, respectively. This positions the Opteron at the high end of a very tight rival cluster.

The Cinebench R15 multicore score is 504, with a single-core score of 71. The R20 multicore score is 2102, versus a single-core score of 296. The R23 multicore score is 5005, while the single-core score is 706. These numbers reinforce the aggregate picture: the processor is far more capable in multi-threaded throughput than in single-threaded execution.

The percentileVsAllCpus value of 39 places the Opteron 6378 below a majority of the CPUs in the comparison set. However, the nearest rivals are clustered so closely that its aggregate score is effectively interchangeable with any of them. The largest delta to a listed rival is 0.3 percent, a negligible aggregate margin.

The benchmark data shows a processor whose multi-thread Cinebench scores carry it into the same aggregate band as very different processor designs. The single-thread results remain modest, and that split defines the Opteron 6378: a 16-core server part with strong parallel throughput and limited per-thread performance.