Xeon Phi 7255 vs 654
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 131 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 33.68 | no data |
| Market segment | Server | Server |
| Power efficiency | 7.39 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | no data |
| Architecture codename | Granite Rapids (2024−2026) | no data |
| Release date | 2 February 2026 (less than a year ago) | 1 October 2017 (8 years ago) |
| Launch price (MSRP) | $1,199 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon 654 and Xeon Phi 7255 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 | 18 (Octadeca-Core) | 68 (Octahexaconta-Core) |
| Performance-cores | 18 | no data |
| Threads | 36 | 68 |
| Base clock speed | 3.1 GHz | 1.1 GHz |
| Boost clock speed | 4.8 GHz | 1.2 GHz |
| Bus rate | 0 GT/s | no data |
| L1 cache | 112 KB (per core) | no data |
| L2 cache | 2 MB (per core) | no data |
| L3 cache | 72 MB (shared) | 34 MB L2 Cache |
| Chip lithography | Intel 3 nm | 14 nm |
| Die size | 2x 598 mm2 | no data |
| Maximum core temperature | no data | 82 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 0.550-1.2V |
Compatibility
Information on Xeon 654 and Xeon Phi 7255 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 | 1 | no data |
| Socket | FCLGA4710 | no data |
| Power consumption (TDP) | 200 Watt | 215 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 654 and Xeon Phi 7255. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | - |
Security technologies
Xeon 654 and Xeon Phi 7255 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| SGX | - | - |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon 654 and Xeon Phi 7255 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon 654 and Xeon Phi 7255. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5(6400MT/s) | DDR4-2400 |
| Maximum memory size | 4 TB | 384 GB |
| Max memory channels | 8 | 6 |
| Maximum memory bandwidth | no data | 115.2 GB/s |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon 654 and Xeon Phi 7255.
| PCIe version | 5.0 | 3.0 |
| PCI Express lanes | 128 | 36 |
Pros & cons summary
| Recency | 2 February 2026 | 1 October 2017 |
| Physical cores | 18 | 68 |
| Threads | 36 | 68 |
| Power consumption (TDP) | 200 Watt | 215 Watt |
Xeon 654 has an age advantage of 8 years, and 7.5% lower power consumption.
Xeon Phi 7255, on the other hand, has 277.8% more physical cores and 88.9% more threads.
We couldn't decide between Intel Xeon 654 and Intel Xeon Phi 7255. We've got no test results to judge.
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