AMD Opteron 6276 vs Intel Core i3-8100T Comparison

FAQ

Q: Which processor wins in multi-threaded workloads?

A: The AMD Opteron 6276 wins all six head-to-head benchmark comparisons, including every Cinebench multi-core test. In Cinebench R23 multi-core, it scores 5395 against the Intel Core i3-8100T's 4467, a 20.8% advantage. Its multi-core lead is consistent across R15, R20, and R23, all with delta percentages between 20.7% and 20.8%.

Q: Does the Intel Core i3-8100T have any benchmark wins?

A: No. The recorded head-to-head data shows 6 wins for the AMD Opteron 6276 and 0 wins for the Intel Core i3-8100T. The Intel processor also has no Geekbench results in the shared comparison set, so no single-core or multi-core Geekbench advantage can be established from the data.

Q: How do the two processors compare in single-core Cinebench performance?

A: The AMD Opteron 6276 leads in every single-core Cinebench test. In Cinebench R23 single-core, it scores 761 versus 630 for the Intel Core i3-8100T, a 20.8% difference. The R15 single-core test shows a similar gap: 76 versus 63, a 20.6% lead for AMD.

Q: What are the average benchmark scores for these CPUs?

A: The AMD Opteron 6276 has an average benchmark score of 1560, placing it in the 39th percentile of all CPUs. The Intel Core i3-8100T averages 1500, placing it in the 38th percentile. The difference is about 4% in raw average score.

Q: What are the nearest rivals for each processor?

A: For the AMD Opteron 6276, the nearest rivals include the Intel Core i3-1115G4E (avg score 1559, delta 0.1%), AMD Ryzen 3 1300X (1562, delta -0.1%), AMD FX-8350 (1557, delta 0.2%), and Intel Xeon E3-1268L v5 (1557, delta 0.2%). For the Intel Core i3-8100T, the nearest rivals are the Intel Core i7-3770S (1498, delta 0.1%), Intel Core i5-4590S (1493, delta 0.5%), AMD Opteron 6344 (1492, delta 0.6%), and Intel Core i7-8665U (1513, delta -0.8%).

Q: Which processor has integrated graphics?

A: Only the Intel Core i3-8100T has integrated graphics, specifically Intel UHD Graphics 630. The AMD Opteron 6276 has no integrated graphics, which is typical for a server/workstation part.

The Verdict

The data presents a clear split. For multi-threaded and single-threaded Cinebench workloads, the AMD Opteron 6276 is the unequivocal winner, taking all six head-to-head matchups with deltas around 20.7% to 20.8%. The 16-core, 16-thread Bulldozer design from 2011 still outpaces the 4-core, 4-thread Coffee Lake chip from 2018 in every recorded Cinebench test. If the workload is render-oriented or heavily threaded, the Opteron is the pick from the benchmark record.

However, the Intel Core i3-8100T is not without context. Its average benchmark score of 1500 sits only 4% below the Opteron's 1560, and both CPUs land within one percentile point of each other (38th versus 39th). The Intel chip also offers integrated graphics, a modern PCIe Gen 3 interface with 16 lanes, and a much lower 35W TDP against the Opteron's 115W. For systems that need integrated display output, lower power draw, or newer platform features, the i3-8100T is the rational choice. The Opteron, by contrast, is a server/workstation part with no integrated graphics and a higher power envelope.

The verdict from the data: choose the Opteron 6276 for raw Cinebench throughput, especially in multi-core scenarios, and choose the Core i3-8100T for platform modernity, integrated graphics, and efficiency. The two are close in average score, but their strengths lie in different domains.

Head-to-Head Benchmarks

The head-to-head results are remarkably uniform. The AMD Opteron 6276 wins every Cinebench test, and the margin is nearly identical across all six benchmarks. In Cinebench R15 multi-core, the Opteron scores 543 versus 450 for the i3-8100T, a 20.7% lead. The single-core R15 test shows 76 versus 63, a 20.6% edge. Moving to R20, the multi-core scores are 2265 versus 1876, again a 20.7% delta, while single-core is 319 versus 264, a 20.8% gap.

The pattern holds in the most recent Cinebench version. In R23 multi-core, the Opteron records 5395 against the Intel chip's 4467, a 20.8% advantage. The R23 single-core test shows 761 versus 630, also a 20.8% difference. The consistency of these margins suggests a fixed performance ratio between the two architectures, not a workload-specific anomaly. The Opteron's 16 cores provide a decisive throughput advantage in multi-core tests, while its higher boost clock of 3.20 GHz versus the i3-8100T's fixed 3.10 GHz base clock helps in single-core scenarios.

It is notably the Intel Core i3-8100T has Geekbench results in its own benchmark set (multi-core 3142, single-core 1104), but those tests are not present in the head-to-head comparison. The database only records Cinebench matchups, and the Opteron wins all of them. For users relying on Cinebench as a proxy for render performance, the Opteron is the stronger part by a consistent 20% plus margin.

Specification Differences

The two processors differ across nearly every core specification. The AMD Opteron 6276 has 16 cores and 16 threads, while the Intel Core i3-8100T has 4 cores and 4 threads. The Opteron's base clock is 2.30 GHz with a boost clock of 3.20 GHz; the i3-8100T has a base clock of 3.10 GHz and no boost clock listed. Thermal design power differs sharply: 115W for the AMD part versus 35W for the Intel part.

Memory support also diverges. The Opteron uses DDR3 with a quad-channel memory bus and a memory bandwidth of 51.2 GB/s. The i3-8100T uses DDR4 with a dual-channel bus and 38.4 GB/s bandwidth. Both support ECC memory. The socket types are incompatible: AMD Socket G34 for the Opteron, Intel Socket 1151 for the i3-8100T.

PCIe generations differ as well. The Opteron provides PCIe Gen 2, while the i3-8100T offers PCIe Gen 3 with 16 lanes (CPU only). Integrated graphics are present only on the Intel chip, with UHD Graphics 630. The Opteron has no integrated graphics. The market segments reflect their intended roles: the Opteron is a Server/Workstation part, the i3-8100T is a Desktop part.

Other differences: the Opteron uses a 32 nm process node from GlobalFoundries, with a die size of 2x 315 mm² and 2,400 million transistors. The i3-8100T uses Intel's 14 nm process with a die size of 126 mm². The Opteron has a launch MSRP of $788, while the i3-8100T has a launch MSRP of $117. Both are end-of-life products, and neither has an unlocked multiplier.

Architecture Differences

The architectural divide is substantial. The AMD Opteron 6276 is based on Bulldozer, codenamed Interlagos, and belongs to the Opteron 6000 series. It uses a 32 nm process from GlobalFoundries and features a modular design with 2 MB of L2 cache per module and 8 MB of L3 cache per die. The cache hierarchy is built around shared modules, which is a hallmark of the Bulldozer family. The chip has 2,400 million transistors spread across two dies, each 315 mm².

The Intel Core i3-8100T is based on Coffee Lake, a mainstream desktop architecture from Intel. It uses a 14 nm process and features a more conventional per-core cache layout: 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3 cache. The die size is 126 mm², significantly smaller than the Opteron's dual-die design. Coffee Lake is a monolithic, general-purpose desktop architecture, while Interlagos is a dual-die server part.

The Opteron's Bulldozer architecture was designed for throughput in heavily threaded server workloads, which explains its strong Cinebench multi-core showing despite the older process node. The i3-8100T's Coffee Lake architecture focuses on efficient single-thread performance and integrated graphics, but the recorded data shows the Opteron still leads in single-core Cinebench tests. The i3-8100T compensates with a much lower TDP, a newer process, and integrated graphics, making it a better fit for compact or power-sensitive desktop builds. The Opteron's architecture, by contrast, targets memory bandwidth and core count, with quad-channel DDR3 support and a 51.2 GB/s memory bus that exceeds the i3-8100T's dual-channel DDR4 bandwidth of 38.4 GB/s.