Ryzen 7 PRO 8840U vs Pentium D 945
Primary details
Comparing Pentium D 945 and Ryzen 7 PRO 8840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 461 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | no data | 50.93 |
| Architecture codename | Presler (2005−2007) | Hawk Point (2024) |
| Release date | 23 July 2006 (18 years ago) | 16 April 2024 (less than a year ago) |
| Launch price (MSRP) | $163 | no data |
Detailed specifications
Pentium D 945 and Ryzen 7 PRO 8840U 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) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | 3.4 GHz | 3.3 GHz |
| Boost clock speed | 3.4 GHz | 5.1 GHz |
| L1 cache | 16 KB (per core) | 64 KB (per core) |
| L2 cache | 2 MB (per die) | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 65 nm | 4 nm |
| Die size | 2x 81 mm2 | 178 mm2 |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 376 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 945 and Ryzen 7 PRO 8840U 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 | 1 |
| Socket | LGA775,PLGA775 | FP7 |
| Power consumption (TDP) | 95 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 945 and Ryzen 7 PRO 8840U. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium D 945 and Ryzen 7 PRO 8840U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 945 and Ryzen 7 PRO 8840U are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 945 and Ryzen 7 PRO 8840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon 780M |
Peripherals
Specifications and connection of peripherals supported by Pentium D 945 and Ryzen 7 PRO 8840U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 23 July 2006 | 16 April 2024 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 65 nm | 4 nm |
| Power consumption (TDP) | 95 Watt | 28 Watt |
Ryzen 7 PRO 8840U has an age advantage of 17 years, 300% more physical cores and 700% more threads, a 1525% more advanced lithography process, and 239.3% lower power consumption.
We couldn't decide between Pentium D 945 and Ryzen 7 PRO 8840U. We've got no test results to judge.
Note that Pentium D 945 is a desktop processor while Ryzen 7 PRO 8840U is a server/workstation one.
Should you still have questions on choice between Pentium D 945 and Ryzen 7 PRO 8840U, ask them in Comments section, and we shall answer.
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