Xeon 6747P vs Pentium Extreme Edition 955
Aggregate performance score
Xeon 6747P outperforms Pentium Extreme Edition 955 by a whopping 21419% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3435 | 34 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 6.29 |
| Market segment | Desktop processor | Server |
| Power efficiency | 0.09 | 7.43 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Presler (2005−2007) | Granite Rapids (2024−2026) |
| Release date | 27 December 2005 (20 years ago) | 24 February 2025 (1 year ago) |
| Launch price (MSRP) | $999 | $6,497 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Pentium Extreme Edition 955 and Xeon 6747P have a nearly equal value for money.
Performance to price scatter graph
Detailed specifications
Pentium Extreme Edition 955 and Xeon 6747P 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) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | 3.466 GHz | 2.7 GHz |
| Boost clock speed | 0.47 GHz | 3.9 GHz |
| L1 cache | 16 KB (per core) | 112 KB (per core) |
| L2 cache | 2 MB (per core) | 2 MB (per core) |
| L3 cache | no data | 288 MB (shared) |
| Chip lithography | 65 nm | Intel 3 nm |
| Die size | 2x 81 mm2 | 2x 598 mm2 |
| Maximum case temperature (TCase) | 69 °C | 78 °C |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Pentium Extreme Edition 955 and Xeon 6747P 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 | 2 |
| Socket | 775 | FCLGA4710 |
| Power consumption (TDP) | 130 Watt | 330 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Extreme Edition 955 and Xeon 6747P. 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) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Pentium Extreme Edition 955 and Xeon 6747P 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 6747P 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 6747P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 Depends on motherboard | DDR5(6400MT/s), MRDIMM(8800MT/s) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| 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 6747P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 88 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.27 | 58.10 |
| Recency | 27 December 2005 | 24 February 2025 |
| Physical cores | 2 | 48 |
| Threads | 4 | 96 |
| Power consumption (TDP) | 130 Watt | 330 Watt |
Pentium Extreme Edition 955 has 154% lower power consumption.
Xeon 6747P, on the other hand, has a 21419% higher aggregate performance score, an age advantage of 19 years, and 2300% more physical cores and 2300% more threads.
The Intel Xeon 6747P is our recommended choice as it beats the Intel Pentium Extreme Edition 955 in performance tests.
Note that Pentium Extreme Edition 955 is a desktop processor while Xeon 6747P is a server/workstation one.
Other comparisons
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