CPU Comparison

The AMD Opteron 6344 and Intel Core i3-7350K represent two vastly different approaches to CPU design, separated by process technology, core philosophy, and market intent. The data shows a clear overall winner in raw compute, but the story is more nuanced when considering the architecture and intended use cases. The Opteron 6344, a 12-core server chip from the Piledriver era, outperforms the dual-core Kaby Lake desktop processor in every single benchmark recorded, yet both CPUs land at the 38th percentile of all CPUs, indicating they are fundamentally similar in overall system performance despite their structural differences.

FAQ

Q: Which processor has more physical cores?

A: The AMD Opteron 6344 has 12 cores, while the Intel Core i3-7350K has only 2 cores.

Q: Does the Intel chip have a higher clock speed?

A: Yes, the Intel Core i3-7350K has a base clock of 4.20 GHz with no boost clock, while the AMD Opteron 6344 has a base clock of 2.60 GHz and a boost clock of 3.20 GHz.

Q: What are the memory bandwidth differences?

A: The AMD Opteron 6344 supports quad-channel DDR3 memory with a theoretical bandwidth of 59.7 GB/s, whereas the Intel Core i3-7350K supports dual-channel DDR4 with a theoretical bandwidth of 38.4 GB/s.

Q: Which CPU has integrated graphics?

A: Only the Intel Core i3-7350K includes integrated graphics, specifically the Intel HD 630. The AMD Opteron 6344 has no integrated graphics.

Q: What is the biggest benchmark margin between them?

A: The largest margin is in Cinebench R15 single-core, where the AMD Opteron 6344 leads by 25.9%, scoring 73 versus 58.

Q: Are both processors in the same performance percentile?

A: Yes, both the AMD Opteron 6344 and the Intel Core i3-7350K are at the 38th percentile versus all CPUs, with average benchmark scores of 1492 and 1462, respectively.

Where Each One Wins

The benchmark results are unambiguous: the AMD Opteron 6344 wins all six head-to-head comparisons against the Intel Core i3-7350K. This includes both multi-core and single-core tests across Cinebench R15, R20, and R23. The Opteron’s margins are consistent, ranging from 24.4% to 25.9% across all tests. This suggests that the Opteron’s 12-core design, even at lower clock speeds, provides a substantial advantage over the i3’s 2-core, 4-thread configuration in heavily threaded workloads like Cinebench rendering.

However, the Intel Core i3-7350K does not win a single benchmark in this head-to-head set. Its only potential advantage lies outside the recorded Cinebench results: it has a higher base clock (4.20 GHz versus 2.60 GHz), a newer 14 nm process, and integrated graphics. For workloads that rely on very high single-thread frequency and are not represented in the Cinebench suite, the i3’s architecture might be more responsive, but the data provided shows no such victory.

The use-case split is therefore clear: the Opteron 6344 is the choice for multi-threaded server or workstation tasks where core count and memory bandwidth matter. The i3-7350K, with its higher clock and active production status, is aimed at desktop users who need a simple, power-efficient CPU with graphics output, but it cannot match the Opteron’s compute throughput in the tests recorded.

Architecture Differences

The architectural divide between these two processors is stark. The AMD Opteron 6344 is built on the Piledriver architecture with the codename “Abu Dhabi,” fabricated on a 32 nm process at GlobalFoundries. It uses a massive dual-die design with a total die size of 2x 315 mm² and contains 2,400 million transistors. The cache hierarchy is module-based: 576 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. This is a server-class design with a 115W TDP and support for ECC memory.

In contrast, the Intel Core i3-7350K is a Kaby Lake desktop chip built on Intel’s 14 nm process. It is a monolithic design with 64 KB of L1 per core, 256 KB of L2 per core, and a shared 4 MB L3 cache. It has no ECC support and integrates the Intel HD 630 graphics. The i3 is a dual-core part with Hyper-Threading, giving it 4 threads, and it features an unlocked multiplier for overclocking. The Opteron has no unlocked multiplier.

The process node difference is significant: 32 nm versus 14 nm. This explains the i3’s lower TDP of 60W compared to the Opteron’s 115W, despite the i3 having a much higher base clock. The Opteron relies on raw core count and a wider memory bus, while the i3 relies on a modern, dense process to achieve high frequencies with fewer resources.

Specification Differences

A direct comparison of specifications reveals where the two chips diverge. The AMD Opteron 6344 has 12 cores and 12 threads, while the Intel Core i3-7350K has 2 cores and 4 threads. The Opteron’s base clock is 2.60 GHz with a 3.20 GHz boost, whereas the i3’s base clock is 4.20 GHz with no boost clock listed. The TDPs are 115W for the AMD and 60W for the Intel.

Memory support differs fundamentally: the Opteron uses DDR3 with a quad-channel bus and 59.7 GB/s bandwidth, while the i3 uses DDR4 with a dual-channel bus and 38.4 GB/s bandwidth. The Opteron supports ECC memory; the i3 does not. PCIe generations also differ: the Opteron uses Gen 2, while the i3 uses Gen 3 with 16 lanes (CPU only). The Opteron has no integrated graphics; the i3 has Intel HD 630.

The production status is also a key differentiator: the Opteron is end-of-life, released in late 2012, while the i3 is active, released in early 2017. The Opteron’s launch MSRP was $415, which is the only price data available. The i3 has an unlocked multiplier, making it overclockable, while the Opteron’s multiplier is locked.

Head-to-Head Benchmarks

The benchmark data is consistent and one-sided. In Cinebench R15 multi-core, the AMD Opteron 6344 scores 519 versus the Intel Core i3-7350K’s 417, a 24.5% lead. The single-core R15 test shows an even larger gap: 73 versus 58, a 25.9% advantage for the Opteron. This pattern repeats in Cinebench R20: multi-core scores are 2166 for the AMD and 1740 for the Intel, again a 24.5% delta; single-core is 305 versus 245, a 24.5% delta.

The trend continues into Cinebench R23. The Opteron scores 5158 in multi-core versus the i3’s 4144, a 24.5% lead. In single-core, the Opteron scores 728 versus 585, a 24.4% margin. These are remarkably uniform margins, suggesting that the performance difference is not workload-dependent but rather a consistent throughput advantage.

The Intel Core i3-7350K has additional Geekbench scores not listed for the Opteron: 3018 in multi-core and 1488 in single-core. However, without a corresponding Opteron Geekbench score, these cannot be compared directly. The head-to-head data only includes Cinebench tests, and in all of those, the Opteron wins.

The average benchmark scores corroborate the head-to-head results. The Opteron has an average score of 1492, while the i3 has an average of 1462. The nearest rivals for the Opteron include the Intel Core i5-4590S (avg 1493, 0% delta) and the Intel Core i3-8100T (avg 1500, -0.5% delta). The i3-7350K’s nearest rivals include the AMD Ryzen 3 PRO 2200GE (avg 1461, 0.1% delta) and the Intel Xeon E3-1225 v5 (avg 1465, -0.2% delta). This places both chips in a similar performance tier overall, despite the Opteron’s clear wins in the specific Cinebench tests.

The Verdict

The data points to a clear choice for multi-threaded computing: the AMD Opteron 6344. It wins every single benchmark in the head-to-head comparison, with margins of roughly 24.5% across the board. For server or workstation workloads that use Cinebench-style rendering, the Opteron’s 12 cores and 59.7 GB/s memory bandwidth deliver substantially more throughput than the i3’s 2 cores and 38.4 GB/s. The Opteron’s ECC memory support and quad-channel bus further solidify its position for reliability and data-intensive tasks.

The Intel Core i3-7350K, however, is not without its merits in the data. It has a much higher base clock (4.20 GHz), a lower TDP (60W versus 115W), and integrated graphics. Its active production status and unlocked multiplier make it a more flexible and modern desktop part. For a user building a simple desktop system that does not require heavy multi-threaded rendering, the i3’s architecture is more current, and its 14 nm process suggests better efficiency per watt.

Yet, strictly from the benchmark results, there is no scenario in this data where the i3 wins. The Opteron leads in both single-core and multi-core Cinebench tests, which is surprising given the i3’s clock speed advantage. This implies that the Piledriver architecture’s single-core performance, while older, is still superior to Kaby Lake’s dual-core design in these specific tests. The verdict is therefore that the Opteron 6344 is the superior processor for raw compute, while the i3-7350K is a more modern, power-efficient desktop chip that simply cannot match the Opteron’s performance in the recorded benchmarks.