AMD Opteron 13QS HE

The AMD Opteron 13QS HE is a server and workstation processor built on the K10 architecture under the Suzuka codename. It features four physical cores with no simultaneous multithreading, a base clock of 2.40 GHz, and a 71 W TDP. Released on April 21, 2009, this part is now end-of-life, and its position in the benchmark database places it at the 50th percentile among all CPUs, with no recorded average benchmark score. The following analysis covers its platform compatibility, threading behavior, competitive context, and thermal characteristics using only the data provided.

Platform and Compatibility

The Opteron 13QS HE uses the AMD Socket Fr2, a socket that is tied to the Opteron (Suzuka) generation. This socket is part of the K10 architecture family, fabricated on a 45 nm process at GlobalFoundries. The die measures 258 mm² and contains 758 million transistors, which is a moderate transistor count for a quad-core part of that era. Because the processor is end-of-life, new system builds are unlikely, but the platform still defines its upgrade and compatibility envelope.

Memory support is dual-channel, with a rated bandwidth of 21.3 GB/s. The processor accepts both DDR2 and DDR3 memory, with the specific type depending on the motherboard. This flexibility allows system integrators to pair the CPU with either memory generation, though the overall bandwidth is fixed by the memory controller. ECC memory is supported, a key feature for server workloads where data integrity is critical. The integrated memory controller is part of the K10 design, so memory latency and bandwidth are handled on-die.

PCIe connectivity is limited to Gen 2, which was the standard at the time of release. This affects expansion options for GPUs, NVMe drives, and other high-throughput peripherals. The processor itself does not include integrated graphics; any display output relies on a chipset feature on certain motherboards. For a server or workstation, this is not a limitation, as discrete graphics or headless operation is typical.

The lack of a boost clock and a locked multiplier means that performance is fixed at the base frequency. Overclocking is not supported, so the 2.40 GHz clock is the maximum sustained speed. The socket Fr2 platform does not offer a clear upgrade path beyond this specific Opteron generation, given the end-of-life status. Users seeking higher core counts or newer features would need to move to a different socket and platform.

Single-Thread vs Multi-Thread Behavior

With four cores and four threads, the Opteron 13QS HE executes one thread per core. There is no SMT, so each core handles a single instruction stream. The base clock of 2.40 GHz is the only operating frequency; the absence of a boost clock means the processor runs at this speed under all loads. This simplifies thermal and power management but also caps single-thread performance.

The cache hierarchy is designed to feed those four cores. Each core has 128 KB of L1 cache and 512 KB of L2 cache, while a 6 MB L3 cache is shared across all cores. This arrangement reduces memory latency for frequently accessed data and improves multi-threaded efficiency. For single-threaded workloads, the L3 cache can still be beneficial if the working set fits within the shared pool, but the primary determinant is the 2.40 GHz clock and the K10 architecture's instruction-per-clock (IPC) efficiency.

In multi-threaded scenarios, the processor scales with core count, but the lack of SMT means only four threads can run concurrently. For workloads that are well-parallelized across four threads, the throughput is roughly four times that of a single core, assuming no memory bottlenecks. The 21.3 GB/s memory bandwidth is adequate for a quad-core part of this generation, though it may become a limiting factor for memory-intensive applications that saturate the dual-channel interface.

The split between single-thread and multi-thread performance is typical for a mid-range server CPU of its era. Single-thread tasks will see modest performance, while multi-threaded server workloads—such as virtualization, database queries, or compilation—can leverage all four cores. However, modern software that expects more than four threads will not scale beyond this processor's capabilities.

How It Compares

The database lists no nearest rivals for this processor, meaning there are no direct comparison scores or delta percentages available. Without rival data, we cannot quantify its performance relative to other specific CPUs. However, the percentile field indicates that it sits at the 50th percentile among all CPUs in the benchmark database. This places it in the middle of the performance distribution, neither a top-tier nor a low-end part.

Given the lack of benchmark scores, any comparison must rely on architectural characteristics. The K10 architecture, 45 nm process, and 2.40 GHz clock are fixed parameters. Processors with higher clock speeds or more cores would likely outperform it, while those with lower clocks or fewer cores would likely fall behind. But without concrete rival names and deltas, we cannot make specific claims.

The market segment is Server/Workstation, which suggests it was designed for reliability and sustained operation rather than peak single-thread performance. Its 71 W TDP is modest for a server CPU, implying that it was aimed at power-conscious deployments. The HE suffix in the name may indicate a high-efficiency variant, though that is not explicitly stated in the fact pack.

FAQ

Q: What socket does the AMD Opteron 13QS HE use?

A: It uses AMD Socket Fr2.

Q: Does this processor support ECC memory?

A: Yes, ECC memory is supported.

Q: How many cores and threads does it have?

A: It has 4 cores and 4 threads, with no simultaneous multithreading.

Q: What is the base clock speed?

A: The base clock is 2.40 GHz. There is no boost clock.

Q: What is the TDP of this processor?

A: The TDP is 71 watts.

Q: What process node is it built on?

A: It is built on a 45 nm process at GlobalFoundries.

Benchmark Performance

The fact pack lists an average benchmark score of 0 and an empty benchmarks array, indicating that no recorded performance results exist in this database. The percentile versus all CPUs is 50, which means that, based on the database's distribution, this processor sits exactly at the median. This is a neutral position, suggesting that it is neither an outlier nor a leader in raw performance.

Without benchmark scores, we cannot provide exact percentage deltas against rivals. The only quantitative data available are the specifications: 4 cores, 4 threads, 2.40 GHz base clock, 128 KB L1 per core, 512 KB L2 per core, 6 MB shared L3, and 21.3 GB/s memory bandwidth. These figures define the theoretical performance envelope.

For single-threaded workloads, the 2.40 GHz clock is the sole frequency, and the K10 architecture's IPC is what it is. Multi-threaded performance scales linearly with core count up to four threads, but no more. The memory bandwidth of 21.3 GB/s is shared across cores, so memory-bound applications may not achieve perfect scaling.

The 50th percentile ranking implies that in a broad set of CPUs, this processor performs at the midpoint. This is consistent with a quad-core, 2.4 GHz part from 2009. It would likely be adequate for entry-level servers, but it would be outclassed by modern multi-core processors with higher clocks and more advanced architectures.

Power and Thermals

The TDP of 71 W is a key thermal design point. This is a relatively low power envelope for a server processor, which typically ranges from 50 W to over 200 W. The 45 nm process and 758 million transistors contribute to this efficiency. The HE designation in the product name likely indicates a high-efficiency variant, though the fact pack does not explicitly define it.

A 71 W TDP means that a standard air cooler with a modest heatsink and fan is sufficient for most environments. No exotic liquid cooling or large passive heatsinks are required. In a server chassis, the cooling system must be capable of dissipating 71 W of heat under sustained load, which is well within the capability of typical 1U or 2U server coolers.

The lack of a boost clock means that power consumption is constant under load, with no transient spikes from frequency scaling. This predictability simplifies power budgeting for data center operators. The end-of-life status does not change the thermal characteristics; the processor will still operate within its TDP as long as the cooling solution is adequate.

Given the 45 nm process, the power density is moderate. The die size of 258 mm² spreads the heat across a larger area, which helps thermal dissipation. Overall, the 71 W TDP class suggests that this processor is suitable for power-sensitive server deployments where energy efficiency is prioritized over raw performance.