AMD Opteron 846

The AMD Opteron 846 is a single-core server processor from the K8 architecture, operating at a base clock of 2000.00 MHz on the SledgeHammer codename. Built on a 130 nm process with 106 million transistors and a 193 mm² die size, this chip holds a 50th percentile ranking among all CPUs in the database. The benchmark results for this processor show an average score of zero, indicating that no direct performance measurements are recorded in the current dataset. Consequently, the analysis below relies on architectural characteristics and the processor’s positional data rather than empirical scores.

Benchmark Performance

The Opteron 846 presents a unique case in the benchmark database: its `benchmarks` array is empty, and its `avgBenchmarkScore` is recorded as 0. This absence of data does not imply a lack of capability, but rather that no standardized test results have been ingested for this specific part. The processor’s `percentileVsAllCpus` of 50 places it exactly at the median of all CPUs evaluated, suggesting that in the absence of measured scores, the system’s ranking algorithm treats it as a midpoint performer. This is consistent with a single-core, single-threaded design from the early 2000s, which would have been competitive within its contemporary server segment but is now vastly outclassed by modern multi-core parts.

Without rival scores or deltaPct values, the `nearestRivals` field is empty, the data cannot support any percentage-based comparisons. The only quantitative benchmark facts available are the clock speed (2000.00 MHz) and the core/thread configuration (1 core, 1 thread). From an architectural standpoint, a 2000.00 MHz single-core K8 processor would have delivered strong integer and floating-point performance per clock for its era, but the lack of a boost clock means it operates at a fixed frequency. The L1 cache of 128 KB and L2 cache of 1 MB provide a modest memory hierarchy that would have served single-threaded workloads adequately. The absence of an L3 cache further limits its ability to handle large working sets, making it more suitable for latency-sensitive tasks rather than throughput-heavy applications.

The 50th percentile rank is a statistical artifact given the zero benchmark score; it does not reflect measured performance but rather the default positioning when no data exists. For the purposes of this database, any workload comparison must be qualitative. The data shows that this processor is end-of-life, and its production status confirms it is no longer relevant in contemporary benchmarking contexts. Thus, while the architecture is sound for its generation, the performance profile cannot be quantified beyond the clock and cache specifications.

Power and Thermals

The Opteron 846 carries a thermal design power (TDP) of 89 watts. This figure defines the cooling requirement class for the processor: it is a moderate-power chip that would have necessitated a capable air cooler in a server chassis, but it does not demand exotic liquid cooling or high-end thermal solutions. In the context of its 130 nm process node, an 89 W TDP is consistent with a single-core K8 design running at 2000.00 MHz. The process node, combined with the 106 million transistors, suggests a power density that is manageable for standard 1U or 2U server enclosures of the 2003-2004 era.

The lack of a boost clock means that the processor does not have thermal headroom for dynamic frequency scaling; it operates at a constant 2000.00 MHz under load. This simplifies thermal management, as the heat output is predictable and steady. The 89 W TDP class implies that a heatsink with a moderate surface area and a low-to-medium speed fan would suffice. For a server/workstation market segment, this TDP is unremarkable, it is neither a low-power part that can run passively nor a high-power part requiring oversized cooling towers. The data does not provide any measured thermal performance, so no assertions about actual temperatures or power draw under specific workloads can be made. However, the TDP number alone places it in a tier where standard server cooling practices are adequate.

How It Compares

The `nearestRivals` array is empty, so there are no direct competitor names, scores, or deltaPct values to reference. This absence means the database does not currently hold comparative data against other processors for the Opteron 846. Without rival information, the analysis must rely on the processor’s own architectural position. The K8 architecture, on which this chip is based, was AMD’s flagship server design during its release period, competing against other single-core server CPUs of the early 2000s. However, since those rivals are not listed, no percentage deltas or relative performance statements can be made.

The processor’s market segment is Server/Workstation, and its single-core, single-thread configuration would place it at the entry level of that segment even at launch. A 2000.00 MHz clock with 1 MB of L2 cache was a respectable combination for single-threaded database transactions or legacy server applications. But the absence of multi-threading means it would lag behind any dual-core or multi-socket configurations available in the same era. The 50th percentile rank, while not a direct comparison, suggests that the database’s algorithm views this part as an average performer relative to all CPUs, a plausible outcome for a single-core server chip that was mid-range in its day but obsolete now.

Given the lack of rival data, any specific comparison such as “10% faster than X” or “20% slower than Y” is impossible. The only factual statement is that the Opteron 846 holds the 50th percentile position among all CPUs, which is a neutral standing. For a processor with zero recorded benchmark scores, this percentile is more indicative of the database’s default handling than of actual performance parity with other chips.

Platform and Compatibility

The Opteron 846 is built for the AMD Socket 940 platform, a socket that was designed for server and workstation processors in the K8 generation. The socket supports the architecture’s dual-channel memory bus, as indicated by the `memoryBus` field, which allows for increased memory bandwidth compared to single-channel designs. However, the `eccMemory` field is marked false, meaning this specific processor does not support error-correcting code memory, a notable omission for a server part, as ECC is typically standard in that segment. The memory support field is null, so no specific RAM types or capacities can be cited.

The processor interfaces with the system via PCIe Gen 2, which provides a modern interconnect standard despite the chip’s age. This is unusual for a 2003-era processor, as PCIe Gen 2 was not widely adopted until later, but the data lists it as the PCIe generation. The socket’s upgrade path is limited: since the Opteron 846 is end-of-life and part of the SledgeHammer generation, users cannot upgrade to newer architectures on the same socket without changing the motherboard. The Socket 940 platform was eventually superseded by Socket F and later AMD server sockets, so any system built around this processor would require a full platform replacement for a meaningful upgrade.

The processor’s part number is OSA846CEP5AM, and it is not multiplier-unlocked, meaning overclocking is not a supported feature. The 130 nm process node and 193 mm² die size are fixed physical attributes that do not change with platform configuration. For compatibility, the system requires a motherboard with Socket 940, and the dual-channel memory bus implies that memory should be installed in matched pairs to achieve optimal performance. The lack of integrated graphics means a discrete GPU is mandatory for any display output, though this is expected for a server/workstation chip.

Who Should Consider It

Given the zero benchmark score and empty rival list, the Opteron 846 cannot be recommended for any modern workload based on measured performance. For gaming, the single-core, single-thread design is fundamentally inadequate; contemporary games require multiple cores and high clock speeds, and this processor offers neither beyond a fixed 2000.00 MHz. The L2 cache of 1 MB is too small for modern game assets, and the lack of a boost clock means no transient performance spikes. The 50th percentile rank does not rescue it, that rank is a default, not a reflection of gaming capability.

For content creation, such as video editing or 3D rendering, the data shows a processor with one thread, which cannot handle multi-threaded rendering workloads efficiently. The K8 architecture’s single-core performance, while decent for its time, is far below any current creation software’s minimum requirements. The absence of L3 cache further hampers large dataset processing. The only scenario where this processor might be relevant is in legacy server applications that are strictly single-threaded and run on older operating systems, but even then, the lack of ECC memory support is a critical drawback for server reliability.

Office productivity tasks, such as word processing or spreadsheet work, would technically run on a system with this processor, but the 2000.00 MHz clock and single thread would result in sluggish performance with modern software. The processor’s end-of-life status means no new systems are being built with it, and its production status of end-of-life confirms that it is discontinued. In summary, the data does not support any positive recommendation for this chip. It is a historical artifact, a 130 nm, 106-million-transistor processor with 128 KB of L1 cache and 1 MB of L2 cache, occupying the 50th percentile by default but with no benchmark evidence of capability. Any user considering this processor would be better served by any modern CPU, though the database lacks the rival data to quantify that gap.