CPU Comparison

Head-to-Head Benchmarks

The benchmark data tells a remarkably close story between these two very different processors. Across all six Cinebench tests, the AMD Opteron 6348 edges out the Intel Core i3-10305T, but the margins are razor-thin. The largest delta is in Cinebench R20 single-core, where the Opteron posts 395 against the Core i3's 393, a 0.5% advantage. Every other test shows a 0.4% gap or less.

In Cinebench R15 multi-core, the Opteron scores 672 versus 669 for the Intel part, a 0.4% lead. The single-core R15 result is a dead heat at 94 points each, with the deltaPct listed as 0. The R20 multi-core test shows 2802 for AMD against 2791 for Intel, again 0.4%. The R23 multi-core result is 6672 versus 6647, and R23 single-core is 942 versus 938, both 0.4% margins.

What's striking is the consistency. The Opteron wins all six head-to-head matchups, yet the average benchmark scores tell a broader story. The Opteron's average is 1930, while the Core i3-10305T sits at 1922. That 0.4% average delta places them in the same performance tier. Both processors land at the 43rd percentile among all CPUs, according to the database.

The nearest-rival data reinforces this parity. The Opteron's closest competitor is the Intel Core i7-1180G7 at 1930 (0% delta), followed by the Core i3-10300 at 1934 (-0.2%) and the Xeon E3-1231 v3 at 1925 (0.3%). The Core i3-10305T sits at 1922, just 0.4% behind the Opteron's average. For the Intel chip, its nearest rival is the Xeon E3-1231 v3 at 1925 (-0.2%), with the Core i7-6700T at 1918 (0.2%) and the Ryzen 3 7320U at 1916 (0.3%) close behind.

These numbers indicate that despite a decade of architectural evolution between them, the two chips deliver nearly identical Cinebench throughput. The Opteron's wins are consistent but marginal, no single benchmark shows more than a five-point gap in any test.

Where Each One Wins

The AMD Opteron 6348 wins every benchmark in the head-to-head comparison, but the practical significance depends on workload. Its multi-core wins in R15, R20, and R23 all hover around 0.4%, which translates to roughly 3 to 25 points depending on the test. For rendering tasks, the Opteron's 12 physical cores provide the edge, albeit a slim one. The R20 multi-core margin of 11 points and R23 multi-core margin of 25 points suggest that heavily threaded workloads favor the AMD part, even if only slightly.

The Intel Core i3-10305T, despite losing all six matchups, offers a different kind of advantage. Its 35W TDP versus the Opteron's 115W means dramatically lower power consumption. The Core i3 also integrates UHD Graphics 630, eliminating the need for a discrete GPU in basic systems. Its active production status and modern DDR4 memory support make it a more practical choice for new builds, even if raw Cinebench scores are essentially tied.

For single-threaded performance, the gap is negligible. The R15 single-core test is a perfect tie at 94. The R20 and R23 single-core deltas are 0.5% and 0.4% respectively. Users who prioritize single-thread responsiveness won't notice a difference between these two in day-to-day use.

The Opteron's server pedigree shows in its memory subsystem, quad-channel DDR3 with 59.7 GB/s bandwidth and ECC support. The Core i3 offers dual-channel DDR4 at 42.7 GB/s and no ECC. For memory-heavy server workloads, the Opteron's bandwidth advantage could matter more than Cinebench scores suggest. Conversely, the Core i3's PCIe Gen 3 with 16 lanes (CPU only) versus the Opteron's PCIe Gen 2 gives the Intel part a modern I/O advantage.

Architecture Differences

These processors come from completely different eras and design philosophies. The AMD Opteron 6348, released in November 2012, uses the Piledriver architecture on the Abu Dhabi codename, built on a 32nm process at GlobalFoundries. It packs 12 cores and 12 threads across two dies, each measuring 315 mm², with a combined 2,400 million transistors. The cache layout is per-module L2 at 2 MB and per-die L3 at 8 MB, with 576 KB of L1.

The Intel Core i3-10305T, released in March 2021, uses the Comet Lake architecture on the Comet Lake-R codename, built on Intel's 14nm process. It features 4 cores and 8 threads with Hyper-Threading, a single die, and a cache arrangement of 64 KB L1 per core, 256 KB L2 per core, and 8 MB shared L3. The transistor count and die size are not listed in the data.

The memory architectures diverge significantly. The Opteron supports DDR3 over a quad-channel bus with 59.7 GB/s bandwidth and ECC memory. The Core i3 supports DDR4 over a dual-channel bus with 42.7 GB/s bandwidth and no ECC. The Opteron's socket is AMD Socket G34, while the Core i3 uses Intel Socket 1200. PCIe generations differ as well, Gen 2 for AMD, Gen 3 for Intel.

Clock speeds favor the Intel part. The Core i3 has a 3.00 GHz base clock and 4.00 GHz boost, while the Opteron runs at 2.80 GHz base and 3.40 GHz boost. Yet the Opteron compensates with three times the physical cores. The TDP difference is stark: 35W for the Core i3 versus 115W for the Opteron.

The Opteron belongs to the server/workstation market segment and is end-of-life, with a launch MSRP of $575. The Core i3 targets desktops, remains active, and had a launch MSRP of $143. Neither processor has an unlocked multiplier. The Opteron's part number is OS6348WKTCGHK; the Core i3's is SRH3M.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6348 has 12 cores and 12 threads, while the Intel Core i3-10305T has 4 cores and 8 threads.

Q: What is the benchmark performance difference between the two?

A: The Opteron wins all six head-to-head Cinebench tests, but the margins are tiny. The largest delta is 0.5% in R20 single-core (395 versus 393). The average benchmark scores are 1930 for AMD and 1922 for Intel, a 0.4% difference.

Q: Do they support the same memory type?

A: No. The Opteron supports DDR3 with quad-channel memory and 59.7 GB/s bandwidth, plus ECC. The Core i3 supports DDR4 with dual-channel memory and 42.7 GB/s bandwidth, without ECC.

Q: Does either processor have integrated graphics?

A: The Intel Core i3-10305T includes UHD Graphics 630. The AMD Opteron 6348 has no integrated graphics.

Q: What are the TDP ratings?

A: The Opteron has a 115W TDP, while the Core i3 is rated at 35W. This is a significant difference in power consumption and cooling requirements.

Q: Which processor is still in production?

A: The Intel Core i3-10305T is listed as active production. The AMD Opteron 6348 is end-of-life.

Specification Differences

| Specification | AMD Opteron 6348 | Intel Core i3-10305T |

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

| Cores | 12 | 4 |

| Threads | 12 | 8 |

| Base Clock | 2.80 GHz | 3.00 GHz |

| Boost Clock | 3.40 GHz | 4.00 GHz |

| TDP | 115W | 35W |

| Socket | AMD Socket G34 | Intel Socket 1200 |

| Architecture | Piledriver | Comet Lake |

| Codename | Abu Dhabi | Comet Lake-R |

| Process Node | 32 nm | 14 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 2,400 million | Not listed |

| Die Size | 2x 315 mm² | Not listed |

| L1 Cache | 576 KB | 64 KB (per core) |

| L2 Cache | 2 MB (per module) | 256 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 | 42.7 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 2 | Gen 3, 16 Lanes (CPU only) |

| Integrated Graphics | None | UHD Graphics 630 |

| Market Segment | Server/Workstation | Desktop |

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

| Release Date | 2012-11-04 | 2021-03-15 |

| Launch MSRP | $575 | $143 |

| Multiplier Unlocked | No | No |

| Part Number | OS6348WKTCGHK | SRH3M |

| Percentile (All CPUs) | 43 | 43 |

| Avg Benchmark Score | 1930 | 1922 |