CPU Comparison

The AMD Opteron 4376 HE and the AMD FX-8320E are two eight-core Piledriver processors that, despite sharing a common architectural heritage, target radically different market segments. The data places them as near-identical performers in aggregate, with the Opteron 4376 HE posting an average benchmark score of 1061 and the FX-8320E trailing by just 2 points at 1059. This 0.2% difference is statistically negligible, yet a closer examination of their specific benchmark results and platform characteristics reveals distinct identities that cater to different use cases.

Head-to-Head Benchmarks

The head-to-head data available for these two processors is asymmetrical, with each being tested under different benchmark suites. The Opteron 4376 HE was evaluated using Cinebench across multiple versions, while the FX-8320E only has Geekbench results in the dataset. This makes a direct side-by-side comparison impossible for identical workloads, but the available numbers still illuminate their relative performance characteristics.

Starting with the Opteron 4376 HE, its Cinebench R15 multicore score of 369 points and single-core score of 52 points establish a baseline for its eight-core throughput. Moving to Cinebench R20, the multicore score rises to 1541, while the single-core score reaches 217. In Cinebench R23, the most demanding test in the set, the Opteron achieves a multicore score of 3670 and a single-core score of 518. These numbers show a consistent scaling pattern across benchmark generations, with multicore performance roughly seven times higher than single-core in each case, indicating efficient core utilization under threaded workloads.

The FX-8320E, meanwhile, presents Geekbench scores of 1681 for multicore and 437 for single-core. While these are not directly comparable to Cinebench results, the ratio between multicore and single-core performance here is approximately 3.85, which is notably lower than the Opteron's ratio. This suggests that the FX-8320E's performance scaling with additional threads is less pronounced in the Geekbench test, potentially reflecting differences in how the two benchmark suites handle Piledriver's architecture.

Both processors land in the 29th percentile among all CPUs in the database, placing them firmly in the entry-level tier of modern processors. The nearest rival data reinforces this positioning, as the Opteron 4376 HE sits within 0.2% of the Intel Core i5-2380P (1063 average score) and is exactly tied with the Intel Core i3-4360 at 1061. The FX-8320E shows a similarly tight cluster, with the Intel Core i3-4350 and AMD Ryzen 5 2500U both scoring 1058, just 0.1% below it. These margins are far below the threshold of perceptible real-world difference, meaning that the two AMD processors perform virtually identically in aggregate benchmarks.

Architecture Differences

Both the Opteron 4376 HE and FX-8320E are built on AMD's Piledriver architecture, which is a 32 nm process design. They share the same transistor count of 1,200 million and identical die size of 315 mm², indicating that they are fundamentally the same silicon at the core level. The cache configurations are also identical, with 384 KB of L1 cache, 8 MB of L2 cache, and 8 MB of shared L3 cache across all eight cores.

The critical architectural divergence lies in their platform integration. The Opteron 4376 HE uses the AMD Socket C32 platform, which is designed for server and workstation environments. It carries the codename Seoul and belongs to the Opteron 4000 series. In contrast, the FX-8320E uses the AMD Socket AM3+ platform, designed for desktop consumer systems, with the codename Vishera and the FX series designation.

Memory support is another differentiating factor. Both processors support DDR3 memory, but the FX-8320E explicitly lists a dual-channel memory bus with a bandwidth of 29.9 GB/s. The Opteron 4376 HE does not specify a memory bus or bandwidth in the data, though its server positioning likely implies a different memory configuration. Notably, neither processor supports ECC memory according to the data, which is unusual for a server-oriented part.

The FX-8320E also has additional features listed that the Opteron lacks. It supports PCIe Gen 2 and includes integrated graphics on certain motherboards as a chipset feature. The FX-8320E has an unlocked multiplier, making it overclocking-friendly, while the Opteron 4376 HE does not have this capability. The FX-8320E was released on 2014-09-01 and is marked as end-of-life, whereas the Opteron 4376 HE was released on 2012-12-03 and has no production status specified.

FAQ

Q: Which processor has a higher boost clock speed?

A: The FX-8320E has a boost clock of 4.00 GHz, which is higher than the Opteron 4376 HE's boost clock of 3.60 GHz. The FX-8320E also has a higher base clock at 3.20 GHz compared to the Opteron's 2.60 GHz.

Q: Are these processors the same architecture?

A: Yes, both the Opteron 4376 HE and FX-8320E use AMD's Piledriver architecture on a 32 nm process node. They share identical transistor counts (1,200 million), die size (315 mm²), and cache hierarchy (384 KB L1, 8 MB L2, 8 MB shared L3).

Q: What is the difference in power consumption?

A: The Opteron 4376 HE has a TDP of 65 watts, which is significantly lower than the FX-8320E's TDP of 95 watts. This makes the Opteron more energy-efficient, which is consistent with its "HE" (high efficiency) designation for server use.

Q: Which processor is newer?

A: The FX-8320E was released on 2014-09-01, making it newer than the Opteron 4376 HE, which was released on 2012-12-03. The FX-8320E is also marked as end-of-life in the data.

Q: Do these processors support ECC memory?

A: According to the data, neither the Opteron 4376 HE nor the FX-8320E supports ECC memory. This is notable because ECC support is often expected in server-class processors like the Opteron.

Q: How do they compare in single-core performance?

A: Direct comparison is complicated by different benchmark suites. The Opteron 4376 HE scores 52 in Cinebench R15 single-core, 217 in Cinebench R20 single-core, and 518 in Cinebench R23 single-core. The FX-8320E scores 437 in Geekbench single-core, which cannot be directly compared to the Cinebench numbers.

Specification Differences

The following specifications differ between the AMD Opteron 4376 HE and the AMD FX-8320E:

• Base Clock: 2.60 GHz (Opteron) vs 3.20 GHz (FX-8320E)
• Boost Clock: 3.60 GHz (Opteron) vs 4.00 GHz (FX-8320E)
• TDP: 65 W (Opteron) vs 95 W (FX-8320E)
• Socket: AMD Socket C32 (Opteron) vs AMD Socket AM3+ (FX-8320E)
• Codename: Seoul (Opteron) vs Vishera (FX-8320E)
• Generation: Opteron (Seoul) vs FX (Vishera)
• Foundry: Not specified (Opteron) vs GlobalFoundries (FX-8320E)
• Memory Bus: Not specified (Opteron) vs Dual-channel (FX-8320E)
• Memory Bandwidth: Not specified (Opteron) vs 29.9 GB/s (FX-8320E)
• PCIe: Not specified (Opteron) vs Gen 2 (FX-8320E)
• Integrated Graphics: Not specified (Opteron) vs On certain motherboards (Chipset feature) (FX-8320E)
• Market Segment: Server/Workstation (Opteron) vs Desktop (FX-8320E)
• Production Status: Not specified (Opteron) vs End-of-life (FX-8320E)
• Release Date: 2012-12-03 (Opteron) vs 2014-09-01 (FX-8320E)
• Launch MSRP: Not specified (Opteron) vs $147 (FX-8320E)
• Multiplier Unlocked: No (Opteron) vs Yes (FX-8320E)
• Part Number: OS4376OFU8KHK (Opteron) vs FD832EWMW8KHKFD832EWMHKBOX (FX-8320E)
• Benchmark Suite Data: Cinebench R15/R20/R23 (Opteron) vs Geekbench multicore/singlecore (FX-8320E)

Where Each One Wins

The Opteron 4376 HE wins decisively in the efficiency category. Its 65-watt TDP represents a 31.6% reduction in power draw compared to the FX-8320E's 95-watt TDP, while delivering nearly identical aggregate benchmark performance. This makes the Opteron the superior choice for dense server deployments where thermal management and power costs are primary concerns. Its earlier release date of 2012-12-03 also suggests a longer operational history in server environments, and its C32 socket platform is designed for multi-socket server configurations, even if this specific data does not confirm that capability.

The FX-8320E wins decisively in raw clock speed and platform flexibility. With a base clock of 3.20 GHz and a boost clock of 4.00 GHz, it offers 23% higher base and 11% higher boost frequencies compared to the Opteron. This translates to better responsiveness in lightly threaded workloads, even if the aggregate benchmark scores show parity. The unlocked multiplier is a significant advantage for enthusiasts, allowing manual overclocking to push performance beyond stock levels. The FX-8320E's AM3+ socket platform is a mainstream desktop ecosystem with broad motherboard availability, and its PCIe Gen 2 support and integrated graphics capability on certain motherboards make it a more versatile standalone system component.

For workloads, the Opteron 4376 HE is better suited for server environments where sustained multi-threaded throughput at minimal power draw is paramount. The Cinebench R23 multicore score of 3670 demonstrates strong scaling across its eight cores, and the consistent ratio of multicore to single-core performance across all three Cinebench versions indicates well-balanced thread management. The FX-8320E, meanwhile, is better for desktop users who want overclocking headroom, higher clock speeds for everyday tasks, and the ability to run on a cost-effective consumer platform. Its Geekbench multicore score of 1681 and single-core score of 437 suggest a more even distribution of performance across varying thread counts, making it a more well-rounded choice for mixed desktop workloads that include gaming, productivity, and content creation.