Atom Z520 vs Phenom X4 9550
Primary details
Comparing Phenom X4 9550 and Atom Z520 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2397 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Architecture codename | Agena (2007−2008) | Silverthorne (2008−2010) |
| Release date | March 2008 (16 years ago) | 2 April 2008 (16 years ago) |
| Launch price (MSRP) | no data | $65 |
Detailed specifications
Phenom X4 9550 and Atom Z520 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 | 2 |
| Base clock speed | no data | 1.33 GHz |
| Boost clock speed | 2.2 GHz | 0.03 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 533.33 MT/s |
| Multiplier | no data | 10 |
| L1 cache | 128 KB (per core) | 56 KB |
| L2 cache | 512 KB (per core) | 512 KB |
| L3 cache | 2 MB (shared) | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | 285 mm2 | 24.18 mm2 |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | 450 million | 47 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.75-1.1V |
Compatibility
Information on Phenom X4 9550 and Atom Z520 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 (Uniprocessor) |
| Socket | AM2+ | PBGA441 |
| Power consumption (TDP) | 95 Watt | 2 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9550 and Atom Z520. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | - |
| Status | no data | Discontinued |
Security technologies
Phenom X4 9550 and Atom Z520 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 X4 9550 and Atom Z520 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | - |
| VT-x | no data | + |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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
| Physical cores | 4 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 2 Watt |
Phenom X4 9550 has 300% more physical cores and 100% more threads.
Atom Z520, on the other hand, has a 44.4% more advanced lithography process, and 4650% lower power consumption.
We couldn't decide between Phenom X4 9550 and Atom Z520. We've got no test results to judge.
Note that Phenom X4 9550 is a desktop processor while Atom Z520 is a notebook one.
Should you still have questions on choice between Phenom X4 9550 and Atom Z520, ask them in Comments section, and we shall answer.
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