Xeon D-2899NT vs Pentium D 840 EE
Primary details
Comparing Pentium D 840 EE and Xeon D-2899NT 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 | Smithfield (2005) | Ice Lake-D (2022−2023) |
| Release date | May 2005 (19 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $2,138 |
Detailed specifications
Pentium D 840 EE and Xeon D-2899NT 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 | no data | 2.2 GHz |
| Boost clock speed | 3.2 GHz | 3.1 GHz |
| L1 cache | 28 KB | 80 KB (per core) |
| L2 cache | 2 MB | 1.25 MB (per core) |
| L3 cache | 0 KB | 30 MB (shared) |
| Chip lithography | 90 nm | 10 nm |
| Die size | 206 mm2 | no data |
| Number of transistors | 169 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium D 840 EE and Xeon D-2899NT 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 | 1 |
| Socket | 775 | FCBGA2579 |
| Power consumption (TDP) | 130 Watt | 135 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 840 EE and Xeon D-2899NT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Thermal Monitoring | - | + |
| Deep Learning Boost | - | + |
Security technologies
Pentium D 840 EE and Xeon D-2899NT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 840 EE and Xeon D-2899NT are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 840 EE and Xeon D-2899NT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 |
| Maximum memory size | no data | 1 TB |
| Max memory channels | no data | 4 |
| 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 840 EE and Xeon D-2899NT.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 32 |
| 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
| Physical cores | 2 | 22 |
| Threads | 4 | 44 |
| Chip lithography | 90 nm | 10 nm |
| Power consumption (TDP) | 130 Watt | 135 Watt |
Pentium D 840 EE has 3.8% lower power consumption.
Xeon D-2899NT, on the other hand, has 1000% more physical cores and 1000% more threads, and a 800% more advanced lithography process.
We couldn't decide between Pentium D 840 EE and Xeon D-2899NT. We've got no test results to judge.
Note that Pentium D 840 EE is a desktop processor while Xeon D-2899NT is a server/workstation one.
Should you still have questions on choice between Pentium D 840 EE and Xeon D-2899NT, ask them in Comments section, and we shall answer.
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