Xeon 6706P-B vs E5520
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2322 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.58 | no data |
| Market segment | Server | Server |
| Power efficiency | 0.76 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Gainestown (2009−2010) | Granite Rapids (2024−2025) |
| Release date | 30 March 2009 (16 years ago) | 24 February 2025 (less than a year ago) |
| Launch price (MSRP) | $19 | $3,200 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon E5520 and Xeon 6706P-B 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 | 4 (Quad-Core) | 40 (Tetraconta-Core) |
| Performance-cores | no data | 40 |
| Threads | 8 | 80 |
| Base clock speed | 2.26 GHz | 2.5 GHz |
| Boost clock speed | 2.53 GHz | 3.5 GHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 256 KB (per core) | 2 MB (per core) |
| L3 cache | 8 MB (shared) | 160 MB (shared) |
| Chip lithography | 45 nm | Intel 3 nm |
| Die size | 263 mm2 | 598 mm2 |
| Maximum core temperature | 72 °C | no data |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 731 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E5520 and Xeon 6706P-B 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 | 2 |
| Socket | FCLGA1366 | FCBGA4368 |
| Power consumption (TDP) | 80 Watt | 235 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5520 and Xeon 6706P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | - |
| QuickAssist | no data | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | 1.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
| Deep Learning Boost | - | + |
Security technologies
Xeon E5520 and Xeon 6706P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5520 and Xeon 6706P-B are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5520 and Xeon 6706P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | 144 GB | 1.13 TB |
| Max memory channels | 3 | 4 |
| Maximum memory bandwidth | 25.6 GB/s | no data |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon E5520 and Xeon 6706P-B.
| PCIe version | 2.0 | Gen 4, Gen 5 |
| PCI Express lanes | no data | 48 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | 30 March 2009 | 24 February 2025 |
| Physical cores | 4 | 40 |
| Threads | 8 | 80 |
| Power consumption (TDP) | 80 Watt | 235 Watt |
Xeon E5520 has 193.8% lower power consumption.
Xeon 6706P-B, on the other hand, has an age advantage of 15 years, and 900% more physical cores and 900% more threads.
We couldn't decide between Intel Xeon E5520 and Intel Xeon 6706P-B. We've got no test results to judge.
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