AMD Opteron 43GK HE

The AMD Opteron 43GK HE is an 8-core, 8-thread server processor from the Opteron (Seoul) generation, built on the Piledriver architecture and released on December 3, 2012. It operates at a base clock of 2.60 GHz with a boost clock of 3.60 GHz, carries a 65W TDP, and targets the Server/Workstation market segment. In the benchmark database, it holds a percentile of 50, placing it exactly at the median of all tracked CPUs.

Single-Thread vs Multi-Thread Behavior

The 43GK HE provides 8 cores and 8 threads, indicating that each physical core executes a single thread without simultaneous multithreading. For single-threaded workloads, the processor can reach its boost clock of 3.60 GHz, which is substantially higher than the base clock of 2.60 GHz. This boost headroom is significant for lightly threaded tasks such as database queries, web serving, and legacy server applications that depend on a single execution thread. The gap between base and boost clocks reflects a design that prioritizes responsiveness in bursty single-threaded work while maintaining power efficiency during sustained multi-threaded loads.

Multi-threaded workloads engage all 8 cores simultaneously. The cache hierarchy is substantial: 384 KB of L1 cache, 8 MB of L2 cache, and 8 MB of shared L3 cache. The shared L3 cache allows all cores to access a common pool of cached data, which is beneficial for workloads with shared data sets. The 8 MB L2 cache provides per-core capacity for frequently accessed data. In parallel workloads that scale across cores, the 8 physical cores deliver predictable throughput. The absence of SMT means the processor cannot extract additional parallelism from software that spawns more than 8 threads, but it also avoids the contention overhead that SMT can introduce.

The 50th percentile ranking across all CPUs in the database indicates a median performance position. This is a balanced placement — not a high-end server part, not a low-end one. The boost clock of 3.60 GHz is respectable for its generation, while the base clock of 2.60 GHz reflects a power-conscious design that favors sustained efficiency over raw throughput. The locked multiplier further reinforces that this is a fixed-configuration part, not intended for enthusiast tuning.

Who Should Consider It

The Opteron 43GK HE is explicitly positioned for the Server/Workstation segment. Its 8 cores and 8 threads make it well-suited for multi-threaded server workloads such as application serving, file serving, and parallel compute tasks. The 65W TDP is a defining attribute — it indicates a power-efficient design appropriate for dense server deployments where thermal and power budgets are constrained. For organizations deploying many servers in a rack, the 65W envelope reduces cooling requirements and power draw.

The DDR3 memory support means this processor pairs with DDR3-based server platforms. However, the lack of ECC memory support is a notable limitation. Many server workloads require ECC for data integrity, particularly in financial, scientific, and database applications. The absence of ECC support narrows the suitability of this processor to workloads where memory error tolerance is acceptable.

For gaming, this processor is not an ideal choice. It has no integrated graphics, so a discrete GPU is mandatory. Its Server/Workstation positioning means gaming performance is not a primary design objective. For office and productivity workloads, the 8 cores provide ample parallel throughput, and the boost clock of 3.60 GHz ensures responsive single-threaded performance in everyday applications. The 65W TDP makes it easy to cool in standard workstation chassis.

Benchmark Performance

The benchmark database contains no recorded scores for the Opteron 43GK HE. The benchmarks array is empty, and the average benchmark score is 0. The percentile of 50, however, places it at the median of all CPUs tracked in the database. This means half of the CPUs in the database perform better, and half perform worse. The percentile is a relative measure that positions this processor in the middle of the performance distribution.

Without benchmark scores or nearest rival entries, performance analysis must rely on the architectural specifications. The 8 cores at a base clock of 2.60 GHz and a boost clock of 3.60 GHz, combined with 8 MB of L2 cache and 8 MB of shared L3 cache, define the processor's capability envelope. The 32 nm process with 1,200 million transistors on a 315 mm² die places this processor in the mid-range of its era. The lack of benchmark data is itself informative — it suggests this processor is not commonly benchmarked, possibly due to its niche server positioning. Users considering this processor should conduct workload-specific testing in their target environment.

Platform and Compatibility

The Opteron 43GK HE uses the AMD Socket C32. This socket is designed for the Opteron server line and supports the Piledriver architecture. The processor is built on a 32 nm process with 1,200 million transistors and a die size of 315 mm². The part number is OE43GKOHU8KHK.

Memory support is DDR3. The processor does not support ECC memory, which is a significant consideration for server deployments where memory error correction is critical. No PCIe information is listed in the database, and there is no integrated graphics — a discrete GPU is required for any display output. The multiplier is locked, meaning overclocking is not supported.

The processor was released on December 3, 2012, as part of the Opteron (Seoul) generation. The Socket C32 platform offers an upgrade path to other processors designed for this socket, though the specific options depend on the motherboard's compatibility and BIOS support.

How It Compares

The nearestRivals array in the database is empty, meaning there are no direct rival comparison entries for this processor. This absence of comparison data means the Opteron 43GK HE cannot be positioned against specific competing processors using this database's data. The 50th percentile ranking provides the only comparative signal. At the median of all CPUs in the database, this processor occupies a middle position — neither a performance leader nor a laggard. For its intended Server/Workstation segment, the 8-core configuration with a 65W TDP represents a balanced design focused on power efficiency rather than raw performance. The locked multiplier reinforces this positioning, as it is not designed for enthusiast overclocking.

FAQ

Q: How many cores and threads does the AMD Opteron 43GK HE have?

A: It has 8 cores and 8 threads, with each core handling a single thread.

Q: What socket does this processor use?

A: It uses AMD Socket C32.

Q: What is the TDP of the Opteron 43GK HE?

A: The TDP is 65W.

Q: Does it support ECC memory?

A: No, the database indicates ECC memory is not supported.

Q: What type of memory does it support?

A: It supports DDR3 memory.

Q: When was this processor released?

A: It was released on December 3, 2012.

Q: What is the process node and transistor count?

A: It is built on a 32 nm process with 1,200 million transistors on a 315 mm² die.

Power and Thermals

The 65W TDP is a defining characteristic of the Opteron 43GK HE. For an 8-core server processor, this is a modest power envelope that reflects the design's focus on efficiency. The 32 nm process with 1,200 million transistors on a 315 mm² die indicates a moderately complex chip that operates within a constrained thermal budget. The base clock of 2.60 GHz and boost clock of 3.60 GHz suggest the processor can dynamically adjust its power consumption based on workload demands.

Under full multi-threaded load, the processor will likely settle near its base clock to stay within the 65W envelope. In lighter, single-threaded workloads, the boost clock of 3.60 GHz can be sustained, providing responsive performance when needed. The cooling implications are straightforward: a standard server heatsink or a capable air cooler is sufficient for the 65W TDP class. No exotic cooling solutions are required. This makes the processor well-suited for dense server chassis where cooling capacity is limited. The locked multiplier ensures the processor operates within its specified power envelope, as users cannot increase clock speeds beyond the factory configuration.