Xeon w7-2575X vs Pentium Extreme Edition 955
Primary details
Comparing Pentium Extreme Edition 955 and Xeon w7-2575X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 75 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 69.67 |
| Market segment | Desktop processor | Server |
| Power efficiency | no data | 14.63 |
| Architecture codename | Presler (2005−2007) | Sapphire Rapids (2023−2024) |
| Release date | 27 December 2005 (18 years ago) | 24 August 2024 (less than a year ago) |
| Launch price (MSRP) | $999 | $1,689 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium Extreme Edition 955 and Xeon w7-2575X 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 | 2 (Dual-core) | 22 (Docosa-Core) |
| Threads | 4 | 44 |
| Base clock speed | 3.466 GHz | 3 GHz |
| Boost clock speed | 0.47 GHz | 4.8 GHz |
| L1 cache | 16 KB (per core) | 80 KB (per core) |
| L2 cache | 2 MB (per core) | 2 MB (per core) |
| L3 cache | no data | 45 MB |
| Chip lithography | 65 nm | Intel 7 nm |
| Die size | 2x 81 mm2 | no data |
| Maximum case temperature (TCase) | 69 °C | 76 °C |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Pentium Extreme Edition 955 and Xeon w7-2575X 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 | 775 | FCLGA4677 |
| Power consumption (TDP) | 130 Watt | 250 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Extreme Edition 955 and Xeon w7-2575X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Pentium Extreme Edition 955 and Xeon w7-2575X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium Extreme Edition 955 and Xeon w7-2575X are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium Extreme Edition 955 and Xeon w7-2575X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 Depends on motherboard | DDR5-4800 |
| Maximum memory size | no data | 2 TB |
| Max memory channels | no data | 4 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Pentium Extreme Edition 955 and Xeon w7-2575X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 64 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
Pros & cons summary
| Recency | 27 December 2005 | 24 August 2024 |
| Physical cores | 2 | 22 |
| Threads | 4 | 44 |
| Power consumption (TDP) | 130 Watt | 250 Watt |
Pentium Extreme Edition 955 has 92.3% lower power consumption.
Xeon w7-2575X, on the other hand, has an age advantage of 18 years, and 1000% more physical cores and 1000% more threads.
We couldn't decide between Pentium Extreme Edition 955 and Xeon w7-2575X. We've got no test results to judge.
Note that Pentium Extreme Edition 955 is a desktop processor while Xeon w7-2575X is a server/workstation one.
Should you still have questions on choice between Pentium Extreme Edition 955 and Xeon w7-2575X, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
