Xeon D-1844NT vs Pentium D 940
Primary details
Comparing Pentium D 940 and Xeon D-1844NT 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) | no data |
| Release date | 5 January 2006 (18 years ago) | 1 October 2023 (1 year ago) |
| Launch price (MSRP) | $423 | no data |
Detailed specifications
Pentium D 940 and Xeon D-1844NT 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) | 10 (Deca-Core) |
| Threads | 2 | 20 |
| Base clock speed | 3.2 GHz | 2 GHz |
| Boost clock speed | 3.2 GHz | 3.1 GHz |
| L1 cache | 16 KB (per core) | no data |
| L2 cache | 2 MB (per die) | no data |
| L3 cache | 0 KB | 15360 KB |
| Chip lithography | 65 nm | no data |
| Die size | 2x 81 mm2 | no data |
| Maximum case temperature (TCase) | 69 °C | no data |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 940 and Xeon D-1844NT 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 | LGA775,PLGA775 | FCBGA2227 |
| Power consumption (TDP) | 130 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 940 and Xeon D-1844NT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | - | + |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Pentium D 940 and Xeon D-1844NT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 940 and Xeon D-1844NT are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 940 and Xeon D-1844NT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 |
| Maximum memory size | no data | 256 GB |
| Max memory channels | no data | 2 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium D 940 and Xeon D-1844NT.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 16 |
| USB revision | no data | 3.0 |
| Max number of SATA 6 Gb/s Ports | no data | 24 |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | 5 January 2006 | 1 October 2023 |
| Physical cores | 2 | 10 |
| Threads | 2 | 20 |
| Power consumption (TDP) | 130 Watt | 55 Watt |
Xeon D-1844NT has an age advantage of 17 years, 400% more physical cores and 900% more threads, and 136.4% lower power consumption.
We couldn't decide between Pentium D 940 and Xeon D-1844NT. We've got no test results to judge.
Note that Pentium D 940 is a desktop processor while Xeon D-1844NT is a server/workstation one.
Should you still have questions on choice between Pentium D 940 and Xeon D-1844NT, 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.
