Opteron 6220 vs Xeon E5645
Aggregate performance score
Xeon E5645 outperforms Opteron 6220 by a minimal 4% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1786 | 1810 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.32 | 0.68 |
| Market segment | Server | Server |
| Power efficiency | 1.49 | 1.00 |
| Designer | Intel | AMD |
| Manufacturer | Intel | GlobalFoundries |
| Architecture codename | Westmere-EP (2010−2011) | Interlagos (2011−2012) |
| Release date | 16 March 2010 (15 years ago) | 14 November 2011 (13 years ago) |
| Launch price (MSRP) | $294 | $523 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon E5645 has 94% better value for money than Opteron 6220.
Performance to price scatter graph
Detailed specifications
Xeon E5645 and Opteron 6220 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 6 (Hexa-Core) | 8 (Octa-Core) |
| Threads | 12 | 8 |
| Base clock speed | 2.4 GHz | 3 GHz |
| Boost clock speed | 2.67 GHz | 3.6 GHz |
| L1 cache | 64 KB (per core) | 768 KB |
| L2 cache | 256 KB (per core) | 2 MB (per module) |
| L3 cache | 12 MB (shared) | 8 MB (per die) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 239 mm2 | 2x 315 mm2 |
| Maximum core temperature | 76 °C | no data |
| Maximum case temperature (TCase) | no data | 69 °C |
| Number of transistors | 1,170 million | 2,400 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E5645 and Opteron 6220 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 2 | 4 |
| Socket | FCLGA1366,LGA1366 | G34 |
| Power consumption (TDP) | 80 Watt | 115 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5645 and Opteron 6220. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
Security technologies
Xeon E5645 and Opteron 6220 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5645 and Opteron 6220 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5645 and Opteron 6220. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 288 GB | no data |
| Max memory channels | 3 | no data |
| Maximum memory bandwidth | 32 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon E5645 and Opteron 6220.
| PCIe version | 2.0 | 2.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 3.09 | 2.96 |
| Recency | 16 March 2010 | 14 November 2011 |
| Physical cores | 6 | 8 |
| Threads | 12 | 8 |
| Power consumption (TDP) | 80 Watt | 115 Watt |
Xeon E5645 has a 4.4% higher aggregate performance score, 50% more threads, and 43.8% lower power consumption.
Opteron 6220, on the other hand, has an age advantage of 1 year, and 33.3% more physical cores.
Given the minimal performance differences, no clear winner can be declared between Intel Xeon E5645 and AMD Opteron 6220.
Other comparisons
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