Pentium M 745 vs Phenom II X4 820
Primary details
Comparing Phenom II X4 820 and Pentium M 745 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2254 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.10 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Pentium M |
| Power efficiency | 1.31 | no data |
| Architecture codename | Deneb (2009−2011) | Dothan (2004−2005) |
| Release date | 1 September 2009 (15 years ago) | 10 May 2004 (20 years ago) |
| Launch price (MSRP) | $90 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X4 820 and Pentium M 745 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 4 | 1 |
| Base clock speed | 2.8 GHz | 1.8 GHz |
| Boost clock speed | 2.8 GHz | 1.8 GHz |
| Bus rate | no data | 400 MHz |
| L1 cache | 128 KB (per core) | 32 KB |
| L2 cache | 512 KB (per core) | 2 MB |
| L3 cache | 4 MB (shared) | 0 KB |
| Chip lithography | 45 nm | 90 nm |
| Die size | 258 mm2 | 87 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 758 million | 144 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 1.276V-1.34V |
Compatibility
Information on Phenom II X4 820 and Pentium M 745 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 | AM3 | H-PBGA479,PPGA478 |
| Power consumption (TDP) | 95 Watt | 7.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X4 820 and Pentium M 745. 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 | - |
| FSB parity | no data | - |
Security technologies
Phenom II X4 820 and Pentium M 745 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 Phenom II X4 820 and Pentium M 745 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X4 820 and Pentium M 745. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 820 and Pentium M 745.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 1 September 2009 | 10 May 2004 |
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 45 nm | 90 nm |
| Power consumption (TDP) | 95 Watt | 7 Watt |
Phenom II X4 820 has an age advantage of 5 years, 300% more physical cores and 300% more threads, and a 100% more advanced lithography process.
Pentium M 745, on the other hand, has 1257.1% lower power consumption.
We couldn't decide between Phenom II X4 820 and Pentium M 745. We've got no test results to judge.
Note that Phenom II X4 820 is a desktop processor while Pentium M 745 is a notebook one.
Should you still have questions on choice between Phenom II X4 820 and Pentium M 745, ask them in Comments section, and we shall answer.
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