AMD Opteron 6220

The AMD Opteron 6220 is an eight-core, eight-thread server processor built on the Bulldozer architecture (codename Interlagos) and manufactured on a 32 nm process by GlobalFoundries. It operates at a base clock of 3.00 GHz with a boost clock of 3.60 GHz, and it targets the Server/Workstation market segment. With an average benchmark score of 1168 and a 33rd percentile ranking across all CPUs, the data places it in the lower-middle tier of tested processors — but its multi-threaded capabilities and server-oriented feature set tell a more nuanced story. This analysis walks through the benchmark results, thermal requirements, and platform considerations for this end-of-life part.

Who Should Consider It

The Opteron 6220's benchmark profile is distinctly split between single-threaded and multi-threaded performance. In Cinebench R23, it scores 570 points in single-core and 4040 points in multi-core, a gap that indicates the chip's strength lies in heavily threaded workloads. Users running parallel server workloads such as database processing, virtualization hosts, or compile farms would see the most benefit from the 8 cores and 8 threads, especially when combined with ECC memory support and quad-channel DDR3 bandwidth of 51.2 GB/s.

Gaming is not a recommended use case. The single-core Cinebench R15 score of 57 and R20 single-core score of 239 are extremely low by modern standards, and games typically depend on strong single-thread performance. The 33rd percentile ranking across all CPUs reinforces this — the Opteron 6220 sits in the bottom third of all tested processors, which would bottleneck most gaming workloads.

Office productivity is a mixed bag. Basic tasks like word processing or spreadsheet work would not stress the 8 cores, but the weak single-thread performance means even lightweight applications may feel less responsive than on a modern dual-core. The chip is better suited to batch processing and throughput-oriented tasks where all 8 cores can be kept busy simultaneously.

Content creation is partially viable. Multi-threaded rendering tasks, as measured by Cinebench R20 multi-core (1696) and R23 multi-core (4040), would benefit from the core count. However, the Bulldozer architecture's relatively low per-core efficiency means the results are modest compared to more modern designs. For a server that runs long-duration parallel jobs, the Opteron 6220 can still be a functional choice, but it is end-of-life, so new deployments are not recommended.

Power and Thermals

The Opteron 6220 has a TDP of 115 watts, which places it in a moderate power class for a server processor of its era. The 32 nm process node and 2,400 million transistors spread across two dies (each 315 mm²) mean the heat density is manageable with standard server cooling. The data indicates that a capable air cooler with a decent heatsink and airflow would suffice for most installations; the 115 W TDP does not require exotic liquid cooling or specialized thermal solutions.

Because this is a server/workstation part, thermal management is typically handled by the chassis and system fans rather than a desktop aftermarket cooler. The end-of-life status means replacement cooling parts may be harder to source, but the 115 W envelope is well within what standard server heatsinks can dissipate. For a system that is already built and operating, the thermal characteristics are not a barrier to continued use — the chip runs at a modest 3.00 GHz base clock, and the 3.60 GHz boost is within the same thermal budget.

How It Compares

Intel Core i7-3635QM: The Opteron 6220 edges out this rival by 0.1% in average benchmark score (1168 vs. 1167). The delta is negligible — statistically, these two processors perform at the same level in aggregate. The comparison shows the Opteron's 8-core design achieves near-identical average performance to this Intel rival.

Intel Core i7-2960XM: Here the Opteron is 0.2% behind (1168 vs. 1170). This is the only rival in the list that beats the Opteron, and the margin is within run-to-run variance. The two processors are effectively tied in overall performance.

Intel Core i5-3570S: The Opteron leads this rival by 0.3% (1168 vs. 1165). The advantage is tiny, but it does place the Opteron ahead in aggregate benchmark scores.

Intel Core i3-1110G4: The Opteron is 0.4% ahead of this rival (1168 vs. 1164). This is the largest delta in the group, yet still a small margin. The comparison highlights how a modern low-power Intel part can nearly match an 8-core server chip from a decade earlier.

FAQ

Q: Does the AMD Opteron 6220 support ECC memory?

A: Yes, ECC memory is supported, making it suitable for error-correcting workloads typical of server environments.

Q: What memory type and configuration does it use?

A: The Opteron 6220 supports DDR3 memory in a quad-channel configuration, providing a memory bandwidth of 51.2 GB/s.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, so the processor cannot be overclocked via multiplier adjustment.

Q: What socket does the Opteron 6220 use?

A: It uses the AMD Socket G34, a server-grade socket.

Q: What is the production status of this processor?

A: The Opteron 6220 is marked as end-of-life, meaning AMD no longer produces it and availability is limited to existing stock or used markets.

Q: What is the launch MSRP?

A: The launch MSRP was $523.

Benchmark Performance

The Cinebench results paint a clear picture of the Opteron 6220's capabilities. In Cinebench R15, the multi-core score is 407 and the single-core score is 57. In R20, the scores are 1696 multi and 239 single. In R23, the scores are 4040 multi and 570 single. Across all three benchmark versions, the multi-core scores are several times higher than the single-core scores, showing that the 8 cores scale well in threaded workloads, but each individual core is very weak.

The average benchmark score of 1168 places the Opteron at the 33rd percentile of all CPUs in the database. That means the majority of tested processors perform better on average. However, the nearest rivals are all within 0.4% of the Opteron's average score, indicating a tight cluster of performance around this level.

Against the Intel Core i7-3635QM, the Opteron leads by 0.1% (1168 vs. 1167). Against the i7-2960XM, it trails by 0.2% (1168 vs. 1170). Against the i5-3570S, it leads by 0.3% (1168 vs. 1165). And against the i3-1110G4, it leads by 0.4% (1168 vs. 1164). These deltas are all within normal benchmark variance — the Opteron 6220 is effectively performance-equivalent to all four rivals in aggregate.

The real story is the multi-threaded Cinebench R23 score of 4040. This is a respectable number for an 8-core chip from 2011, and it demonstrates that the Bulldozer architecture can scale when all cores are engaged. The single-core R23 score of 570, however, is where the chip falls behind. Modern processors score far higher in the same test, meaning the Opteron's per-core performance is well below contemporary levels.

Platform and Compatibility

The Opteron 6220 is built for the AMD Socket G34 platform, a server-grade socket. The chip uses the Bulldozer architecture with the codename Interlagos, and it is manufactured on a 32 nm process at GlobalFoundries. The processor package contains two dies, each measuring 315 mm², with a total of 2,400 million transistors.

Memory support is DDR3 in a quad-channel configuration, yielding 51.2 GB/s of bandwidth. ECC memory is supported, which is critical for server reliability. The PCIe interface is Gen 2, which limits expansion options compared to modern platforms — but for the era in which this chip was released, Gen 2 was standard.

The cache hierarchy is as follows: 768 KB of L1 cache, 2 MB of L2 per module, and 8 MB of L3 per die. The production status is end-of-life, and the release date was November 13, 2011. The part number is OS6220WKT8GGU. The multiplier is locked, so overclocking is not an option. For upgrade paths, the G34 socket is obsolete — no modern processors use it, and the end-of-life status means there are no future processor upgrades available on this platform. Users looking to upgrade would need to move to a completely different platform, which also means replacing memory and possibly other components.

The PCIe Gen 2 support is worth noting: it provides sufficient bandwidth for older server peripherals but will bottleneck modern high-throughput NVMe drives or multiple GPUs. For a legacy server running established workloads, this is acceptable; for new builds, it is a significant limitation.