AMD Opteron 3380

The AMD Opteron 3380 is an eight-core server/workstation processor built on the K10 architecture, codenamed Delhi, and released in December 2012. It operates on the AM3+ socket with a 65W TDP, and benchmark results place it in the 29th percentile of all CPUs, with an average benchmark score of 1071. This places it in direct competition with several older mainstream desktop processors, making its performance profile particularly interesting for legacy system upgrades.

Single-Thread vs Multi-Thread Behavior

The Opteron 3380 presents a stark contrast between its single-thread and multi-thread capabilities, a split that defines its suitability for different workloads. In Cinebench R15, the processor scores 373 points in the multi-core test but only 52 points in the single-core test, producing a multi-to-single thread ratio of roughly 7.2:1. This indicates that the eight K10 cores scale exceptionally well under parallel loads, but each individual core is comparatively weak for tasks that rely on single-thread performance.

The pattern continues in newer benchmark versions. Cinebench R20 shows a multi-core score of 1555 against a single-core score of 219, while Cinebench R23 yields 3704 multi-core and 522 single-core. The consistent ratio across these tests suggests that the architecture's per-core efficiency has not improved with newer software versions, and the performance gap between one core and eight cores remains substantial. In practice, this means the Opteron 3380 excels in workloads that can be fully parallelized, such as rendering, database queries, or compilation tasks, where all cores are kept busy.

However, for everyday desktop tasks or lightly-threaded applications like web browsing, office productivity, or older games, the single-core score of 52 in R15 is a significant bottleneck. The data shows that the processor would struggle to maintain responsiveness in such scenarios, as most common software still relies heavily on single-thread performance. Users with workloads that are predominantly single-threaded would see performance far below what the multi-core scores might suggest, making the Opteron 3380 a niche part for server-style batch processing rather than interactive use.

Power and Thermals

The Opteron 3380 carries a TDP rating of 65 watts, a figure that is modest for an eight-core processor from its era. This places it in a low-power class, which has direct implications for cooling requirements and system integration. The 32nm process node and 1,200 million transistor count on a 315 mm² die contribute to this efficiency, allowing the processor to operate within a thermal envelope that a capable air cooler can handle without difficulty.

The 65W TDP means the processor does not demand high-end liquid cooling or oversized heatsinks, making it suitable for dense server chassis where space and airflow are limited. This is a deliberate design choice for the server/workstation market segment, where thermal management and power density are critical considerations. The dual-channel DDR3 memory interface with a bandwidth of 29.9 GB/s also keeps the overall memory subsystem within a moderate power budget, as DDR3 modules are generally less power-hungry than newer DDR4 or DDR5 alternatives.

For system builders, the 65W TDP implies that a standard tower cooler or a low-profile server heatsink would suffice, provided the chassis has adequate ventilation. The lack of an unlocked multiplier also suggests that the processor is intended to run at stock settings, further reducing the need for enhanced cooling solutions. The end-of-life production status, however, means that thermal solutions and replacement parts must be sourced from the secondhand market or existing inventory.

Benchmark Performance

The benchmark data reveals a processor that is statistically tied with several older Intel and AMD desktop parts. The average benchmark score of 1071 is identical to the Intel Core i3-4170T, Intel Core i5-2310, and AMD Athlon X4 880K, each with a deltaPct of 0%. The Intel Core i5-4440S is marginally ahead with an average score of 1070 and a deltaPct of 0.1%, which is within noise and effectively a tie.

In Cinebench R15, the Opteron 3380's multi-core score of 373 positions it as a competent parallel processor, but the single-core score of 52 highlights its weakness in that domain. The R20 results show a multi-core score of 1555 and single-core of 219, while R23 yields 3704 and 522 respectively. These numbers indicate that the processor maintains its relative standing across different benchmark versions, with no significant scaling improvements or regressions as the test workload evolves.

When compared to its nearest rivals, the Opteron 3380 does not offer a clear performance advantage in synthetic benchmarks. The identical average scores suggest that, despite having eight cores versus the four cores typical of the listed Intel rivals, the older K10 architecture does not translate its core count into a measurable lead in these mixed workloads. The Athlon X4 880K, also from AMD, achieves the same average score, indicating that the Opteron's extra cores are offset by lower per-core throughput in these particular tests.

How It Compares

Intel Core i3-4170T: This dual-core Intel part with Hyper-Threading achieves an average score of 1071, exactly matching the Opteron 3380 with a deltaPct of 0%. The comparison shows that two Intel cores with hyper-threading can match eight AMD K10 cores in average benchmark performance, underscoring the Opteron's per-core weakness. The i3-4170T would be preferable for single-threaded tasks, while the Opteron offers more physical cores for parallel loads.

Intel Core i5-2310: Another exact match at 1071 average score and 0% deltaPct, this quad-core Intel processor from the Sandy Bridge generation ties the Opteron 3380. The i5-2310 likely surpasses the Opteron in single-thread tests given its newer architecture, but the overall average score suggests that the Opteron's eight cores compensate in multi-threaded scenarios. This rival represents a typical desktop alternative from the same era.

AMD Athlon X4 880K: The AMD rival also scores 1071 with a 0% deltaPct, making it a direct competitor from the same manufacturer. This quad-core part, based on a later architecture, matches the Opteron's average performance. The comparison highlights that AMD's newer cores deliver similar overall performance with half the core count, indicating that the Opteron's K10 architecture was already outdated by the time the 880K was released.

Intel Core i5-4440S: With an average score of 1070 and a deltaPct of 0.1%, this quad-core Intel processor is effectively tied with the Opteron 3380. The 0.1% difference is negligible and likely represents benchmark variance rather than a real performance gap. This rival shows that the Opteron competes with mid-range desktop processors from several generations, but does not offer a decisive advantage in either direction.

Platform and Compatibility

The Opteron 3380 fits into the AMD Socket AM3+ platform, which provides broad compatibility with a range of motherboards from the early 2010s. The socket supports DDR3 memory in a dual-channel configuration, with a maximum theoretical bandwidth of 29.9 GB/s. The processor does not support ECC memory, which may be surprising for a server-oriented part but is confirmed by the data.

PCIe Gen 2 is the available expansion interface, which limits bandwidth for modern graphics cards or NVMe storage adapters compared to newer PCIe Gen 3 or Gen 4 standards. The integrated graphics are listed as available on certain motherboards as a chipset feature, meaning the processor itself does not contain a GPU die, but some AM3+ boards include integrated graphics capabilities. The lack of an unlocked multiplier restricts overclocking potential, fitting the server market segment where stability is prioritized over performance tuning.

The upgrade path from the Opteron 3380 is limited to other AM3+ processors, which are themselves end-of-life. The 32nm process node and K10 architecture predate the newer Piledriver and Steamroller cores that also fit AM3+, but the production status indicates that all such options are now discontinued. For existing AM3+ systems, the Opteron 3380 serves as a drop-in replacement or upgrade, but there is no forward-compatible path to newer platforms without a motherboard and memory change.

FAQ

Q: What is the average benchmark score of the AMD Opteron 3380?

A: The average benchmark score is 1071, placing it in the 29th percentile of all CPUs.

Q: How does the Opteron 3380 compare to the Intel Core i3-4170T?

A: Both processors have an identical average score of 1071, with a deltaPct of 0%, indicating a statistical tie in overall performance.

Q: What is the TDP of the Opteron 3380 and what does it imply for cooling?

A: The TDP is 65 watts, which implies that a standard air cooler is sufficient for thermal management in most chassis.

Q: Does the Opteron 3380 support ECC memory?

A: No, the data shows that ECC memory is not supported, despite the server/workstation market segment.

Q: What is the single-core performance of the Opteron 3380 in Cinebench R23?

A: The single-core score in Cinebench R23 is 522, while the multi-core score is 3704.

Q: What socket does the Opteron 3380 use?

A: It uses the AMD Socket AM3+, which supports dual-channel DDR3 memory and PCIe Gen 2 expansion.