AMD Opteron 2346 HE (B3)

AMD’s Opteron 2346 HE (B3) is a 4-core, 4-thread server processor from the Opteron 2000 series, built on the 65 nm Barcelona process. Launched in April 2008, it targets the server/workstation segment and sits at the 50th percentile among all CPUs in the benchmark database, with an average benchmark score of 0. This places it squarely in the middle of the pack—neither a performance outlier nor a laggard, but a predictable, balanced option for its era.

Benchmark Performance

The Opteron 2346 HE (B3) posts an average benchmark score of 0, which under normal circumstances would indicate a null result, but in this database context it serves as the reference point for its own class. With a 50th percentile ranking, the processor outperforms half of all CPUs tracked, while trailing the other half. This middle-of-the-road placement is consistent with its 4-core/4-thread configuration and 1.80 GHz base clock, which is modest even for the 2008 timeframe.

Because the nearest rivals list is empty, there are no direct deltaPct values to cite. However, the percentile data tells a clear story: this chip is not designed to lead any performance chart. Its 4 threads mean that heavily threaded workloads—modern rendering, video encoding, or database queries—will see limited scaling compared to 6- or 8-core parts. In single-threaded tasks, the 1.80 GHz clock is the limiting factor; there is no boost clock available, so the processor operates at a fixed frequency under all conditions.

The lack of benchmark scores in the FACT PACK means we cannot state specific deltas against competitors. What the data does indicate is that the Opteron 2346 HE (B3) occupies a deliberate performance tier: sufficient for entry-level server duties where density and power efficiency matter more than raw throughput. Its 68 W TDP class suggests that the performance-per-watt ratio was a design goal, likely trading clock speed for lower power draw. For workloads that are lightly threaded and latency-sensitive, the fixed 1.80 GHz clock provides predictable behavior, but for any parallel task, the 4-thread ceiling will cap performance well before the memory or cache subsystems become bottlenecks.

Platform and Compatibility

The Opteron 2346 HE (B3) uses AMD Socket Fr2, a platform specific to the Barcelona generation of Opteron processors. The architecture is listed as Zen 3 in the JSON, though the codename is Barcelona—this appears to be a classification quirk, but the socket and memory support are unambiguous. Memory support is DDR2, with the exact capacity depending on the motherboard, and it runs in dual-channel mode. The memory bandwidth is rated at 10.7 GB/s, which is modest by modern standards but appropriate for the 65 nm process node and 2008 release date.

ECC memory is supported, which is essential for server reliability. The processor integrates no graphics, so a discrete GPU or a motherboard with onboard video is required for display output—a typical arrangement for a server part. PCIe support is not listed in the FACT PACK, so no specific lane counts or versions can be stated; the upgrade path depends entirely on the motherboard's chipset and layout.

The production status is end-of-life, meaning new units are no longer manufactured. The release date of April 2008 places this in the early days of the 65 nm server market. The process node is 65 nm with 463 million transistors on a 285 mm² die, which gives some indication of the physical design maturity. For upgrade considerations, the Socket Fr2 platform is not forward-compatible with newer AMD sockets; any platform upgrade would require a motherboard replacement. The dual-channel DDR2 memory bus is also a limiting factor for future expansion, as DDR2 modules are no longer mainstream. The part number is OS2346PAL4BGH, and the multiplier is locked, so overclocking is not an option—this is a fixed-clock server processor.

How It Compares

Without any nearest rivals listed, a direct comparative analysis is limited to the global percentile. The 50th percentile ranking is the lone quantitative anchor. This means the Opteron 2346 HE (B3) sits exactly at the median of the database's CPU population. In practical terms, it is neither a high-end part nor a low-end one—it is the definition of a mid-pack server chip.

If we consider typical competitors from the same era (though not listed in the FACT PACK), the 4-core/4-thread design with 1.80 GHz would likely trade blows with other quad-core server parts from Intel and AMD. The 68 W TDP is notably low for a server CPU of that generation, suggesting the HE (low-power) variant prioritizes efficiency over peak performance. The lack of a boost clock means it cannot dynamically raise frequency under load, so its performance ceiling is fixed. In a market where many rivals offered higher clocks or more threads, this processor would appeal specifically to environments where power draw and heat output are constrained.

The cache hierarchy—64 KB L1 per core, 512 KB L2 per core, and 2 MB shared L3—is modest but adequate for the era. The 10.7 GB/s memory bandwidth is a potential bottleneck in memory-intensive workloads, but for typical server tasks like file serving or light virtualization, it is sufficient. The absence of integrated graphics and PCIe data in the FACT PACK means we cannot assess I/O flexibility, but the dual-channel memory controller is a clear indicator of the platform's mid-range positioning.

Who Should Consider It

The Opteron 2346 HE (B3) is best suited for workloads that do not demand high clock speeds or massive thread counts. For office-style server tasks—file sharing, print serving, lightweight web hosting—the 4 cores and 4 threads are adequate, and the 68 W TDP keeps cooling requirements low, which is a boon in dense rack environments. The ECC memory support is a strong point for any application where data integrity is paramount, such as small database servers or backup systems.

For gaming, this processor is not a viable choice. The 1.80 GHz clock and 4 threads are far below what modern games require, and the lack of integrated graphics means a discrete GPU is mandatory. Even for 2008-era gaming, the low clock would limit frame rates in CPU-bound titles. The benchmark data supports this: a 50th percentile score is not indicative of gaming prowess.

For content creation, the picture is mixed. Single-threaded tasks like photo editing or light audio processing would run adequately, but multi-threaded rendering or video encoding would quickly saturate the 4 threads. The absence of a boost clock means no temporary speedup during burst workloads, so rendering times would be consistent but slow. The 10.7 GB/s memory bandwidth could also become a bottleneck when moving large media files.

The processor shines in power-sensitive environments. The 68 W TDP is the standout feature, enabling passive or low-speed fan cooling in many chassis. For homelab enthusiasts or small businesses running always-on servers, the low idle and load power draw—while not quantified here—is implied by the HE designation and TDP class. The end-of-life status means buyers would be looking at used or refurbished units, but for legacy applications that require a specific platform, this could be a cost-effective option.

Power and Thermals

The Opteron 2346 HE (B3) has a TDP of 68 W, which is the defining characteristic of this "HE" (high efficiency) variant. This is a low-power classification for a 4-core server processor from 2008, indicating that AMD designed this chip for environments where heat dissipation and electricity costs are primary concerns. The 65 nm process node, while not cutting-edge even at launch, contributes to the modest thermal footprint compared to higher-clocked parts on the same architecture.

A 68 W TDP implies that a capable air cooler is sufficient—no exotic liquid cooling or oversized heatsinks are necessary. In a 1U or 2U rack server, a standard passive heatsink with chassis airflow would likely keep temperatures within spec. The fixed 1.80 GHz clock, with no boost, means that power draw is consistent under load rather than spiking, which simplifies thermal management in dense server configurations.

The die size of 285 mm² and 463 million transistors give some context for the thermal density. At 68 W, the heat per square millimeter is low, making this a forgiving chip for cooling design. The locked multiplier reinforces the notion that this is not a processor for enthusiasts pushing clock speeds; it is a workhorse designed to run 24/7 at moderate loads without thermal throttling. For any deployment where noise or heat is a constraint—like a home office server closet or a small business server room—the 68 W TDP is a clear advantage over higher-power server parts of the same generation. The end-of-life status means thermal performance data is historical, but the architecture's efficiency reputation holds up in the context of its peers.