AMD Opteron 6348 vs AMD Ryzen 3 5125C Comparison

FAQ

Q: What are the core and thread counts for each processor?

A: The AMD Opteron 6348 has 12 cores and 12 threads. The AMD Ryzen 3 5125C has 2 cores and 4 threads.

Q: Which processor has a higher base clock speed?

A: The AMD Ryzen 3 5125C has a base clock of 3.00 GHz, while the AMD Opteron 6348 has a base clock of 2.80 GHz.

Q: What is the thermal design power (TDP) of each chip?

A: The AMD Opteron 6348 has a TDP of 115 watts. The AMD Ryzen 3 5125C has a TDP of 15 watts.

Q: Which processor supports ECC memory?

A: The AMD Opteron 6348 supports ECC memory. The AMD Ryzen 3 5125C does not support ECC memory.

Q: What are the production statuses of the two processors?

A: The AMD Opteron 6348 is end-of-life. The AMD Ryzen 3 5125C is active.

Q: Do the two processors have any shared benchmark tests in the database?

A: No, the recorded benchmark sets do not overlap. The Opteron 6348 has Cinebench R15, R20, and R23 scores, while the Ryzen 3 5125C has Geekbench scores.

Where Each One Wins

The AMD Opteron 6348 dominates in multi-threaded rendering workloads. Its Cinebench R15 multicore score of 672, R20 multicore score of 2802, and R23 multicore score of 6672 reflect the advantage of 12 physical cores. The Ryzen 3 5125C has no recorded Cinebench scores, so the Opteron stands alone in those tests. The Opteron also supports quad-channel DDR3 memory with a bandwidth of 59.7 GB/s, which suits server and workstation tasks that move large data sets.

The AMD Ryzen 3 5125C wins in single-thread efficiency and platform modernity. Its Geekbench single-core score of 1237 and multicore score of 2566 are the only recorded data points for that chip, but the architecture details support its role. It uses a 7 nm process node, DDR4 memory, and Gen 3 PCIe with 8 lanes. The Opteron uses a 32 nm node, DDR3 memory, and Gen 2 PCIe. The Ryzen chip also includes integrated Radeon Vega 3 graphics, which the Opteron lacks entirely.

The Ryzen 3 5125C also wins decisively on power draw. Its TDP of 15 watts is dramatically lower than the Opteron's 115 watts. That makes the Ryzen part suitable for mobile systems, as indicated by its market segment of Mobile, while the Opteron targets Server/Workstation use.

The average benchmark scores are close. The Opteron 6348 records an average score of 1930, and the Ryzen 3 5125C records 1902. Both sit at the 43rd percentile among all CPUs. The Opteron's nearest rival, the Intel Core i7-1180G7, matches its average score exactly at 1930. The Ryzen's nearest rival, the Intel Core i3-9100F, scores 1903, a 0.1% difference.

Architecture Differences

The AMD Opteron 6348 uses the Piledriver architecture with the codename Abu Dhabi, built on a 32 nm process at GlobalFoundries. It contains 2,400 million transistors across a die size of 2x 315 mm². The cache hierarchy is organized by module: 576 KB of L1 cache, 2 MB of L2 cache per module, and 8 MB of L3 cache per die. This is a dual-die design, so the L3 cache is distributed across two dies.

The AMD Ryzen 3 5125C uses the Zen 3 architecture with the codename Cezanne-U, built on a 7 nm process at TSMC. It contains 10,700 million transistors on a single 180 mm² die. The cache layout differs fundamentally: 64 KB of L1 cache per core, 512 KB of L2 cache per core, and 8 MB of shared L3 cache. The Zen 3 design consolidates the L3 into a unified pool, whereas the Opteron spreads it across dies.

The memory interface also differs. The Opteron supports DDR3 with a quad-channel bus, delivering 59.7 GB/s of bandwidth. The Ryzen 3 5125C supports DDR4 with a dual-channel bus, delivering 51.2 GB/s. Despite having fewer channels, the Ryzen part uses newer memory technology. The Opteron also supports ECC memory, while the Ryzen part does not.

PCIe capabilities separate the two as well. The Opteron uses Gen 2 PCIe, while the Ryzen 3 5125C uses Gen 3 with 8 lanes from the CPU. The Ryzen part includes integrated Radeon Vega 3 graphics, making it a complete APU. The Opteron has no integrated graphics.

The release dates reflect a large generational gap. The Opteron launched on 2012-11-04, and the Ryzen 3 5125C launched on 2022-05-04. The Opteron is end-of-life, while the Ryzen part remains active.

Specification Differences

The two processors differ in nearly every measurable specification. The Opteron 6348 has 12 cores and 12 threads, while the Ryzen 3 5125C has 2 cores and 4 threads. The Opteron's base clock is 2.80 GHz, and its boost clock is 3.40 GHz. The Ryzen 3 5125C has a base clock of 3.00 GHz, and no boost clock is recorded in the database.

TDP separates them sharply: 115 watts for the Opteron versus 15 watts for the Ryzen part. The Opteron uses AMD Socket G34, while the Ryzen 3 5125C uses AMD Socket FP6. The Opteron belongs to the Opteron 6000 series, and the Ryzen part belongs to the 5000 series.

Memory support differs by generation and channel count. The Opteron uses DDR3 with a quad-channel bus. The Ryzen 3 5125C uses DDR4 with a dual-channel bus. The Opteron's memory bandwidth is 59.7 GB/s, and the Ryzen part's is 51.2 GB/s. ECC memory is supported only on the Opteron.

PCIe generation differs: Gen 2 on the Opteron, Gen 3 with 8 lanes on the Ryzen part. Integrated graphics exist only on the Ryzen 3 5125C, as Radeon Vega 3. The Opteron has no integrated graphics.

The process node and foundry also differ. The Opteron uses a 32 nm process at GlobalFoundries, with 2,400 million transistors and a die size of 2x 315 mm². The Ryzen 3 5125C uses a 7 nm process at TSMC, with 10,700 million transistors and a die size of 180 mm².

The market segments differ: Server/Workstation for the Opteron, Mobile for the Ryzen part. The Opteron has a launch MSRP of $575. The Ryzen part has no recorded launch MSRP. Neither processor has an unlocked multiplier.

Head-to-Head Benchmarks

There are no shared benchmark tests between the AMD Opteron 6348 and the AMD Ryzen 3 5125C in the database. The Opteron has Cinebench R15, R20, and R23 scores, while the Ryzen 3 5125C has Geekbench scores. Direct comparison requires interpreting their relative positions against other CPUs.

The Opteron 6348 records an average benchmark score of 1930, placing it at the 43rd percentile. Its nearest rival, the Intel Core i7-1180G7, also scores 1930, a 0% delta. The Intel Core i3-10300 scores 1934, which is 0.2% higher. The Intel Xeon E3-1231 v3 scores 1925, 0.3% lower. The Intel Core i3-10305T scores 1922, 0.4% lower.

The Ryzen 3 5125C records an average benchmark score of 1902, also at the 43rd percentile. Its nearest rival, the Intel Core i3-9100F, scores 1903, a 0.1% delta. The Intel Xeon E5-2620 v3 scores 1907, 0.3% higher. The Intel Xeon E3-1285 v4 scores 1908, 0.3% higher. The AMD Ryzen 5 PRO 2400GE scores 1910, 0.4% higher.

Within its own benchmark suite, the Opteron 6348 shows strong multicore scaling. Its Cinebench R23 multicore score of 6672 is more than seven times its R23 single-core score of 942. The R20 results show a similar ratio: 2802 multicore versus 395 single-core. The R15 results show 672 multicore versus 94 single-core. These ratios confirm that the Opteron's 12 cores deliver near-linear scaling in rendering workloads.

The Ryzen 3 5125C shows a different pattern. Its Geekbench multicore score of 2566 is roughly double its single-core score of 1237. With 2 cores and 4 threads, the scaling is consistent with a dual-core processor with simultaneous multithreading. The single-core score of 1237 reflects the higher per-core performance of the Zen 3 architecture, despite having far fewer cores than the Opteron.

The average benchmark scores place both processors at the same percentile, but the underlying workloads differ. The Opteron's scores come from rendering tests that stress all cores. The Ryzen part's scores come from Geekbench, which mixes single-thread and multi-thread tasks. The Opteron's 12 cores give it a decisive advantage in heavily threaded workloads, while the Ryzen 3 5125C's newer architecture gives it a per-core advantage that the Cinebench single-core scores of the Opteron cannot match.