Sempron 145 vs Pentium D 820
Aggregate performance score
Sempron 145 outperforms Pentium D 820 by a small 6% based on our aggregate benchmark results.
Primary details
Comparing Pentium D 820 and Sempron 145 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3095 | 3086 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Pentium D | no data |
| Power efficiency | 0.31 | 0.69 |
| Architecture codename | Smithfield (2005) | Sargas (2009−2011) |
| Release date | May 2005 (19 years ago) | 1 September 2010 (14 years ago) |
| Launch price (MSRP) | no data | $95 |
Detailed specifications
Pentium D 820 and Sempron 145 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) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Base clock speed | 2.8 GHz | 2.8 GHz |
| Boost clock speed | 2.8 GHz | 2.8 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | 28 KB | 128 KB (per core) |
| L2 cache | 2 MB | 1 MB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 45 nm |
| Die size | 206 mm2 | 117 mm2 |
| Maximum core temperature | 64 °C | no data |
| Number of transistors | 169 million | 234 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.2V-1.4V | no data |
Compatibility
Information on Pentium D 820 and Sempron 145 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 | PLGA775 | AM3 |
| Power consumption (TDP) | 95 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 820 and Sempron 145. 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 | 32 Bit | no data |
| FSB parity | - | no data |
Security technologies
Pentium D 820 and Sempron 145 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 820 and Sempron 145 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 820 and Sempron 145. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
Peripherals
Specifications and connection of peripherals supported by Pentium D 820 and Sempron 145.
| PCIe version | no data | 2.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 0.31 | 0.33 |
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 90 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 45 Watt |
Pentium D 820 has 100% more physical cores and 100% more threads.
Sempron 145, on the other hand, has a 6.5% higher aggregate performance score, a 100% more advanced lithography process, and 111.1% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Pentium D 820 and Sempron 145.
Should you still have questions on choice between Pentium D 820 and Sempron 145, ask them in Comments section, and we shall answer.
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