Pentium D 820 vs Athlon 64 2650e
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 3325 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Pentium D |
| Power efficiency | no data | 0.12 |
| Designer | AMD | Intel |
| Architecture codename | Lima (2008−2009) | Smithfield (2005) |
| Release date | 1 January 2009 (16 years ago) | May 2005 (20 years ago) |
Detailed specifications
Athlon 64 2650e and Pentium D 820 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 | 1 (Single-Core) | 2 (Dual-core) |
| Threads | 1 | 2 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 1.6 GHz | 2.8 GHz |
| Bus rate | no data | 800 MHz |
| L1 cache | 128 KB | 28 KB |
| L2 cache | 512 KB | 2 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | 77 mm2 | 206 mm2 |
| Maximum core temperature | no data | 64 °C |
| Number of transistors | 122 million | 169 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 1.2V-1.4V |
Compatibility
Information on Athlon 64 2650e and Pentium D 820 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 | 2 |
| Socket | AM2 | PLGA775 |
| Power consumption (TDP) | 15 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon 64 2650e and Pentium D 820. You'll probably need this information if you require some particular technology.
| 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 | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
Athlon 64 2650e and Pentium D 820 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 Athlon 64 2650e and Pentium D 820 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 2650e and Pentium D 820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR1, DDR2, DDR3 |
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 Athlon 64 2650e and Pentium D 820.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Physical cores | 1 | 2 |
| Threads | 1 | 2 |
| Chip lithography | 65 nm | 90 nm |
| Power consumption (TDP) | 15 Watt | 95 Watt |
Athlon 64 2650e has a 38.5% more advanced lithography process, and 533.3% lower power consumption.
Pentium D 820, on the other hand, has 100% more physical cores and 100% more threads.
We couldn't decide between AMD Athlon 64 2650e and Intel Pentium D 820. We've got no test results to judge.
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