Ultra 9 285 vs Pentium D 840 EE
Primary details
Comparing Pentium D 840 EE and Core Ultra 9 285 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 | Desktop processor |
| Architecture codename | Smithfield (2005) | Arrow Lake-S (2024−2025) |
| Release date | May 2005 (19 years ago) | January 2025 |
Detailed specifications
Pentium D 840 EE and Core Ultra 9 285 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 | 4 | 24 |
| Base clock speed | no data | 2.5 GHz |
| Boost clock speed | 3.2 GHz | 5.6 GHz |
| L1 cache | 28 KB | 112 KB (per core) |
| L2 cache | 2 MB | 3 MB (per core) |
| L3 cache | 0 KB | 36 MB (shared) |
| Chip lithography | 90 nm | 3 nm |
| Die size | 206 mm2 | 243 mm2 |
| Number of transistors | 169 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium D 840 EE and Core Ultra 9 285 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 | 1851 |
| Power consumption (TDP) | 130 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 840 EE and Core Ultra 9 285. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | - | + |
Security technologies
Pentium D 840 EE and Core Ultra 9 285 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 840 EE and Core Ultra 9 285 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 Core Ultra 9 285. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc Xe2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Pentium D 840 EE and Core Ultra 9 285.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Physical cores | 2 | 24 |
| Threads | 4 | 24 |
| Chip lithography | 90 nm | 3 nm |
| Power consumption (TDP) | 130 Watt | 125 Watt |
Ultra 9 285 has 1100% more physical cores and 500% more threads, a 2900% more advanced lithography process, and 4% lower power consumption.
We couldn't decide between Pentium D 840 EE and Core Ultra 9 285. We've got no test results to judge.
Should you still have questions on choice between Pentium D 840 EE and Core Ultra 9 285, ask them in Comments section, and we shall answer.
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