Xeon w7-2555X vs FX-770K
Primary details
Comparing FX-770K and Xeon w7-2555X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1951 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 2.80 | no data |
| Architecture codename | Kaveri (2014−2015) | Sapphire Rapids (2023−2024) |
| Release date | December 2014 (9 years ago) | 24 August 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $1,069 |
Detailed specifications
FX-770K 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 | 4 (Quad-Core) | 14 (Tetradeca-Core) |
| Threads | 4 | 28 |
| Base clock speed | 3.5 GHz | 3.3 GHz |
| Boost clock speed | 3.9 GHz | 4.8 GHz |
| L1 cache | 256K | 80 KB (per core) |
| L2 cache | 4 MB | 2 MB (per core) |
| L3 cache | no data | 33.75 MB |
| Chip lithography | 28 nm | 10 nm |
| Die size | 245 mm2 | no data |
| Maximum case temperature (TCase) | 72 °C | 75 °C |
| Number of transistors | 2,411 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | + |
Compatibility
Information on FX-770K 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 | 1 | 1 |
| Socket | FM2+ | 4677 |
| Power consumption (TDP) | 65 Watt | 210 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-770K and Xeon w7-2555X. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
FX-770K 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 FX-770K and Xeon w7-2555X are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-770K and Xeon w7-2555X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-2133 | 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 FX-770K and Xeon w7-2555X.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 16 | 64 |
Pros & cons summary
| Physical cores | 4 | 14 |
| Threads | 4 | 28 |
| Chip lithography | 28 nm | 10 nm |
| Power consumption (TDP) | 65 Watt | 210 Watt |
FX-770K has 223.1% lower power consumption.
Xeon w7-2555X, on the other hand, has 250% more physical cores and 600% more threads, and a 180% more advanced lithography process.
We couldn't decide between FX-770K and Xeon w7-2555X. We've got no test results to judge.
Note that FX-770K is a desktop processor while Xeon w7-2555X is a server/workstation one.
Should you still have questions on choice between FX-770K and Xeon w7-2555X, ask them in Comments section, and we shall answer.
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