Xeon Gold 6542Y vs Pentium D 955
Primary details
Comparing Pentium D 955 and Xeon Gold 6542Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Presler (2005−2007) | Emerald Rapids (2023) |
| Release date | January 2006 (18 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $2,878 |
Detailed specifications
Pentium D 955 and Xeon Gold 6542Y 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) | 24 (Tetracosa-Core) |
| Threads | no data | 48 |
| Base clock speed | no data | 2.9 GHz |
| Boost clock speed | 3.46 GHz | 4.1 GHz |
| L1 cache | 28 KB | 80 KB (per core) |
| L2 cache | 4096 KB | 2 MB (per core) |
| L3 cache | 0 KB | 60 MB (shared) |
| Chip lithography | 65 nm | Intel 7 nm |
| Die size | 140 mm2 | 2x 763 mm2 |
| Maximum case temperature (TCase) | no data | 83 °C |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium D 955 and Xeon Gold 6542Y 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 | 2 |
| Socket | 775 | FCLGA4677 |
| Power consumption (TDP) | 130 Watt | 250 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 955 and Xeon Gold 6542Y. 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 | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Pentium D 955 and Xeon Gold 6542Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 955 and Xeon Gold 6542Y are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 955 and Xeon Gold 6542Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5-5200 |
| 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 | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Pentium D 955 and Xeon Gold 6542Y.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 80 |
Pros & cons summary
| Physical cores | 2 | 24 |
| Power consumption (TDP) | 130 Watt | 250 Watt |
Pentium D 955 has 92.3% lower power consumption.
Xeon Gold 6542Y, on the other hand, has 1100% more physical cores.
We couldn't decide between Pentium D 955 and Xeon Gold 6542Y. We've got no test results to judge.
Note that Pentium D 955 is a desktop processor while Xeon Gold 6542Y is a server/workstation one.
Should you still have questions on choice between Pentium D 955 and Xeon Gold 6542Y, 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.
