Xeon w7-2555X vs 2.66
Primary details
Comparing Xeon 2.66 and Xeon w7-2555X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3138 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Power efficiency | 0.29 | no data |
| Architecture codename | Prestonia (2002) | Sapphire Rapids (2023−2024) |
| Release date | November 2002 (22 years ago) | 24 August 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $1,069 |
Detailed specifications
Xeon 2.66 and Xeon w7-2555X 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 | 1 (Single-Core) | 14 (Tetradeca-Core) |
| Threads | 1 | 28 |
| Base clock speed | no data | 3.3 GHz |
| Boost clock speed | 2.66 GHz | 4.8 GHz |
| L1 cache | 16 KB | 80 KB (per core) |
| L2 cache | 512 KB | 2 MB (per core) |
| L3 cache | 0 KB | 33.75 MB |
| Chip lithography | 130 nm | 10 nm |
| Die size | 217 mm2 | no data |
| Maximum case temperature (TCase) | no data | 75 °C |
| Number of transistors | 55 million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon 2.66 and Xeon w7-2555X 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 | 1 |
| Socket | 604 | 4677 |
| Power consumption (TDP) | 89 Watt | 210 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 2.66 and Xeon w7-2555X. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
Xeon 2.66 and Xeon w7-2555X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon 2.66 and Xeon w7-2555X are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon 2.66 and Xeon w7-2555X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
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 2.66 and Xeon w7-2555X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 64 |
Pros & cons summary
| Physical cores | 1 | 14 |
| Threads | 1 | 28 |
| Chip lithography | 130 nm | 10 nm |
| Power consumption (TDP) | 89 Watt | 210 Watt |
Xeon 2.66 has 136% lower power consumption.
Xeon w7-2555X, on the other hand, has 1300% more physical cores and 2700% more threads, and a 1200% more advanced lithography process.
We couldn't decide between Xeon 2.66 and Xeon w7-2555X. We've got no test results to judge.
Should you still have questions on choice between Xeon 2.66 and Xeon w7-2555X, ask them in Comments section, and we shall answer.
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