AMD Opteron 8347 HE (B3)

Platform and Compatibility

The AMD Opteron 8347 HE (B3) is built for the AMD Socket Fr2 platform, a socket designed specifically for multi-socket server and workstation configurations. This processor belongs to the Barcelona generation of the Opteron family, representing AMD's 65 nm process node implementation with 463 million transistors on a 285 mm² die. The architecture is listed as Zen 3, though this designation appears in the context of the Barcelona codename, which historically marks the first generation of native quad-core Opteron processors. The market segment is explicitly Server/Workstation, and the production status is end-of-life, with a release date of April 30, 2008.

Memory support centers on DDR2, with the exact type and capacity depending on the motherboard implementation. The memory bus is dual-channel, and the theoretical memory bandwidth is listed at 10.7 GB/s. ECC memory is supported, which is a critical feature for server environments where data integrity is paramount. The platform does not list any integrated graphics, and PCIe information is absent from the specification sheet. The upgrade path for this socket is limited, as the platform is tied to the Barcelona generation and the end-of-life status means no further processor releases are expected for Socket Fr2. The processor uses a 1900.00 MHz base clock with no boost clock capability, and the multiplier is locked, preventing user-overclocking adjustments. The part number is OS8347PAL4BGH, and the launch MSRP is $873.

Single-Thread vs Multi-Thread Behavior

The Opteron 8347 HE (B3) provides 4 cores and 4 threads, meaning there is no simultaneous multithreading — each core handles exactly one thread. This design choice is straightforward for server workloads that scale with physical cores rather than relying on hyper-threading to fill execution gaps. The base clock of 1900.00 MHz is modest by modern standards, which directly impacts single-thread performance. In single-threaded applications, the processor's speed is governed entirely by this clock frequency, as there is no boost mechanism to temporarily raise performance under light load. Benchmark data shows the processor sits at the 50th percentile among all CPUs, indicating a median position in overall performance distribution.

Multi-threaded behavior benefits from the quad-core design, but the absence of SMT means that thread count equals core count. For workloads that are perfectly parallel, the processor can engage all four cores simultaneously, but the relatively low clock speed limits the absolute throughput compared to higher-clocked rivals. The cache hierarchy is modest: 64 KB of L1 per core, 512 KB of L2 per core, and 2 MB of shared L3 cache. This L3 allocation is shared across all four cores, which can help with frequently accessed data but is small by current standards. The single-thread versus multi-thread split suggests that this processor is better suited for multi-threaded server tasks like database queries or virtualization where core count matters more than per-core speed. For single-threaded legacy applications, the 1900.00 MHz clock will be a bottleneck, and the data indicates that the processor's strength lies in aggregate throughput rather than responsiveness.

Power and Thermals

The TDP is rated at 68 watts, which places this processor in a power-efficient tier for its era. The "HE" suffix in the product name historically denotes "High Efficiency" or low-power variants, and the 68 W TDP confirms this positioning. For a quad-core server processor from 2008, this power envelope is notably lower than standard server parts, which typically consumed more power. The implication for cooling is that a capable air cooler with a modest heatsink should suffice — no exotic liquid cooling or high-end thermal solutions are required. The 65 nm process node, while large by today's standards, was competitive at release and contributes to the thermal characteristics. The low TDP also means that multi-socket configurations are feasible without overwhelming the system's thermal budget, which is a key consideration for dense server deployments. The absence of a boost clock means the processor runs at a constant 1900.00 MHz, so peak power draw is predictable and consistent under sustained load. This predictability simplifies power supply sizing and thermal management in rack environments. The data does not provide specific temperature figures, but the 68 W TDP class implies that standard server cooling with adequate airflow will maintain safe operating temperatures under full load. For workloads that stress all four cores continuously, the thermal output will be steady rather than spiky, which is advantageous for data center cooling design.

How It Compares

The nearestRivals field in the data is empty, which means there are no direct comparison points provided in the fact pack. This absence is notable — typically a benchmark database would list competing processors with their respective scores and delta percentages. Without these data points, this analysis must rely on the broader context provided by the percentile and average benchmark score. The percentileVsAllCpus value of 50 places this processor exactly at the median of all CPUs in the database, meaning half of all processors perform better and half perform worse. This median positioning suggests that the Opteron 8347 HE (B3) is an average performer in the grand scheme of CPU benchmarks, which is unsurprising given its 2008 release and 1900.00 MHz clock. The average benchmark score of 0 further complicates direct comparisons, as a zero score typically indicates either insufficient benchmark data or a normalization baseline. Given the end-of-life status and the age of the platform, it is likely that this processor has been benchmarked infrequently, resulting in sparse comparative data. The market segment of Server/Workstation suggests that its natural rivals would be other server processors from the same era, but the fact pack does not enumerate them. Therefore, any quantitative comparison to rivals must be deferred until such data becomes available. The launch MSRP of $873 positions it in the mid-to-high range for server processors of its time, but pricing analysis is outside the scope of this benchmark-focused review.

Benchmark Performance

The benchmark performance of the AMD Opteron 8347 HE (B3) is characterized by a single data point: an average benchmark score of 0. This score, combined with the 50th percentile ranking, paints a picture of a processor that is neither a standout nor a laggard in the overall CPU landscape. The zero score might indicate that the processor has not been subjected to the standard benchmark suite, or that the normalization method results in a baseline of zero for this particular part. In the absence of rival scores and delta percentages, the performance analysis must focus on what the specification sheet implies. With 4 cores and 4 threads at 1900.00 MHz, the theoretical maximum throughput is 7.6 billion clock cycles per second across all cores. The memory bandwidth of 10.7 GB/s via dual-channel DDR2 is a limiting factor for memory-intensive workloads, as this bandwidth is shared across all cores. The cache hierarchy, particularly the 2 MB shared L3, will help mitigate some memory latency but is small compared to modern processors with tens of megabytes of L3.

For multi-threaded workloads, the processor should scale linearly with core count up to four threads, but the lack of SMT means that no additional thread-level parallelism is available beyond the physical cores. This design is typical for server processors of the Barcelona generation, which prioritized power efficiency and core count over single-thread speed. The 68 W TDP suggests that the processor can maintain its 1900.00 MHz clock under sustained multi-threaded load without thermal throttling, assuming adequate cooling. For single-threaded workloads, the processor's performance will be dictated by the 1900.00 MHz clock, which is modest even for 2008 standards. The 50th percentile ranking indicates that in the full database of CPUs, this processor sits exactly in the middle — it outperforms half of all processors and underperforms the other half. This median status is consistent with a server processor that was designed for efficiency rather than peak performance. The end-of-life status means that no future firmware or microcode updates are expected to improve performance, and the locked multiplier prevents any user-driven overclocking. The benchmark data, while sparse, suggests a processor that delivers predictable, mid-range performance suitable for its intended server role, but without the headroom to compete with higher-clocked or higher-core-count alternatives.