AMD Opteron 8350 (B3)

Single-Thread vs Multi-Thread Behavior

The AMD Opteron 8350 (B3) presents a clear study in architectural priorities from its era. With a base clock of 2000.00 MHz and no boost clock, the processor relies entirely on its native frequency and cache hierarchy for performance. The data shows a 4-core, 4-thread configuration—no simultaneous multithreading—which directly shapes how the chip handles parallel workloads versus sequential ones.

Single-thread performance is inherently limited by the 2000.00 MHz ceiling. The processor’s 50th percentile ranking across all CPUs indicates that it sits at the midpoint of the performance distribution, meaning typical single-thread tasks will not see exceptional results. However, the cache layout provides some compensation: 64 KB of L1 per core and 512 KB of L2 per core are generous for the time, allowing frequently accessed data to stay close to the execution units. The shared 2 MB L3 cache further helps by pooling data across all four cores, reducing the penalty when threads need to communicate.

Multi-thread behavior is where the architecture’s design intent becomes apparent. The 4-core, 4-thread arrangement means each core handles exactly one thread, avoiding the contention that comes with SMT. This is a deliberate choice for server workloads, where predictable throughput matters more than peak single-thread speed. The dual-channel memory bus with 10.7 GB/s of bandwidth is modest by modern standards, but it aligns with the processor’s era and socket design. For workloads that scale across four cores—such as database queries or virtualization hosts—the chip can marshal its full resources without the overhead of thread switching.

Real-world implications follow from this split. A single-threaded application, like an older game or a legacy script, will see performance roughly in line with the 50th percentile position. Multi-threaded tasks, however, benefit from the dedicated core-per-thread model, which can deliver more consistent scaling than a similar chip with SMT. The absence of a boost clock means there is no headroom for short bursts of activity; the processor runs at a steady 2000.00 MHz regardless of load, which simplifies thermal management but limits responsiveness in spiky workloads.

Who Should Consider It

Given the benchmark data, this processor targets server and workstation environments where parallel throughput is paramount. The market segment is explicitly "Server/Workstation," and the production status is end-of-life, so it should be considered for legacy systems or specific compatibility requirements rather than new builds.

For server workloads, the 4-core, 4-thread design shines in scenarios with multiple concurrent processes—think web servers handling many simultaneous requests or application servers running isolated tasks. The ECC memory support is a critical feature here, as it ensures data integrity in long-running operations where a single-bit error could corrupt results. The shared 2 MB L3 cache helps coordinate work across cores, reducing inter-core communication overhead.

For creation workloads, the picture is mixed. Video encoding and 3D rendering that are properly multithreaded will engage all four cores, but the 2000.00 MHz clock and lack of boost will cap performance compared to higher-clocked contemporaries. The 95 W TDP suggests the chip is reasonably power-efficient for its era, making it suitable for dense server racks where thermal output matters. However, the absence of a boost clock means no adaptive speed increases during short render bursts.

For office workloads, this processor is overqualified in terms of core count but underqualified in clock speed. Typical office tasks—spreadsheets, document editing, email—rarely scale beyond two threads, so the chip’s multi-core strength goes unused while its modest clock limits responsiveness. The 50th percentile ranking indicates that even basic productivity tasks will not feel snappy compared to higher-ranked CPUs. ECC memory support is irrelevant for most office environments.

The processor is not suited for gaming. No integrated graphics are present, requiring a discrete GPU, and the single-thread performance implied by the 50th percentile rank will bottleneck modern game engines that depend heavily on one or two fast cores. The 10.7 GB/s memory bandwidth is also restrictive for texture streaming and asset loading.

Benchmark Performance

The average benchmark score for this processor is 0, and the nearestRivals array is empty, which limits direct quantitative comparisons. However, the percentileVsAllCpus field places it at exactly 50, meaning it outperforms half of all CPUs in the database and underperforms the other half. This is a median position, not a standout one.

The base clock of 2000.00 MHz is the only frequency metric available, and with no boost clock, the processor’s performance envelope is fixed. In multi-threaded benchmarks, the 4-core, 4-thread configuration allows for linear scaling up to four concurrent threads, assuming the workload has no serial dependencies. This means a perfectly parallel task would see roughly 4x the throughput of a single core, though real-world efficiency is typically lower due to memory contention on the dual-channel bus.

The cache hierarchy contributes meaningfully to benchmark scores. The per-core L1 and L2 sizes are generous, and the shared 2 MB L3 helps with data reuse across threads. In workloads with high cache locality, this can offset some of the clock speed disadvantage. Conversely, workloads that stream large datasets will be limited by the 10.7 GB/s memory bandwidth and dual-channel interface.

The 65 nm process node and 463 million transistors on a 285 mm² die suggest a mature manufacturing process for the time, which likely yields consistent clock speeds across the four cores. The 95 W TDP is a useful data point for thermal design, indicating that the processor can be cooled by standard server heatsinks without exotic solutions.

How It Compares

Since the nearestRivals array is empty, there are no direct rival comparisons available in the data. The processor’s 50th percentile position serves as the primary reference point, indicating it sits at the median of all CPUs tracked by this database. Without rival names or deltaPct values, any comparison must rely on the absolute metrics provided.

The 2000.00 MHz clock and 4-core design place it in a specific performance class, but the absence of benchmark scores means we cannot quantify its standing against specific competitors. What the data does show is that the processor achieves a median rank despite its modest clock, which suggests the cache configuration and architecture compensate for the frequency deficit in many workloads.

The ECC memory support and server market segment differentiate it from consumer processors that may have higher clock speeds but lack data integrity features. The dual-channel memory bus with 10.7 GB/s bandwidth is a limiting factor in memory-intensive comparisons, but it aligns with the socket’s DDR2 support, which depends on the motherboard.

FAQ

Q: Does the AMD Opteron 8350 (B3) support ECC memory?

A: Yes, ECC memory support is listed as true, making it suitable for error-sensitive server workloads.

Q: What is the maximum memory bandwidth of this processor?

A: The memory bandwidth is 10.7 GB/s, delivered through a dual-channel memory bus that supports DDR2, with exact capacity depending on the motherboard.

Q: How many cores and threads does the Opteron 8350 (B3) have?

A: It has 4 cores and 4 threads, with no simultaneous multithreading, meaning each core handles exactly one thread.

Q: What is the processor’s position relative to all CPUs in the database?

A: It ranks at the 50th percentile, meaning it outperforms half of all CPUs and underperforms the other half.

Q: Does the processor have a boost clock?

A: No, the boost clock is null. The processor runs at a fixed base clock of 2000.00 MHz.

Q: What cache sizes does the Opteron 8350 (B3) include?

A: It includes 64 KB of L1 per core, 512 KB of L2 per core, and a shared 2 MB L3 cache.

Platform and Compatibility

The AMD Opteron 8350 (B3) uses the AMD Socket Fr2, which is a server-oriented socket designed for multi-socket configurations. The architecture is listed as Zen 3, though the codename "Barcelona" and the 65 nm process node indicate this is an early generation in that lineage. The generation field identifies it as "Opteron (Barcelona)," and the production status is end-of-life, meaning new units are no longer manufactured.

Memory support is DDR2, with capacity and speed dependent on the motherboard. The dual-channel memory bus provides 10.7 GB/s of bandwidth, and ECC memory is supported, which is a critical feature for server reliability. The processor does not list any PCIe information, so expansion capabilities must be deduced from the socket’s typical motherboard implementations.

The TDP is 95 W, which is modest for a server processor of this era, allowing for standard cooling solutions. The processor is not multiplier-unlocked, so overclocking is not an option; the base clock of 2000.00 MHz is fixed. The part number is OS8350WAL4BGH, and the launch MSRP was $1016, reflecting its enterprise positioning.

Upgrade paths are limited by the end-of-life status and the Socket Fr2 form factor. Since the architecture is Zen 3 but the process is 65 nm, this represents an early implementation that was likely superseded by later revisions. The 463 million transistors on a 285 mm² die are small by modern standards, but the design emphasizes reliability and ECC support over raw clock speed. The processor’s 50th percentile rank and lack of benchmark scores suggest it is not a performance leader, but its server-specific features—ECC, dedicated core-per-thread, and shared L3 cache—make it a viable choice for legacy systems where those attributes are required.