Atom N550 vs Phenom II X4 840
Primary details
Comparing Phenom II X4 840 and Atom N550 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2029 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.08 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Architecture codename | Propus (2009−2011) | Pineview (2009−2011) |
| Release date | 4 January 2011 (13 years ago) | 23 August 2010 (13 years ago) |
| Launch price (MSRP) | $90 | $86 |
| Current price | $40 (0.4x MSRP) | $198 (2.3x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X4 840 and Atom N550 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) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 3.2 GHz | 1.5 GHz |
| Boost clock speed | 3.2 GHz | 1.5 GHz |
| Bus support | no data | 666 MHz |
| L1 cache | 128 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 512K (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 169 mm2 | 87 mm2 |
| Number of transistors | 300 million | 176 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Phenom II X4 840 and Atom N550 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 | FCBGA559 |
| Power consumption (TDP) | 95 Watt | 8.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X4 840 and Atom N550. 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 | + |
| Thermal Monitoring | no data | + |
| Demand Based Switching | no data | - |
| Status | no data | Discontinued |
Security technologies
Phenom II X4 840 and Atom N550 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 840 and Atom N550 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X4 840 and Atom N550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | no data | 2 GB |
| Max memory channels | no data | 1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel GMA 3150 |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 840 and Atom N550.
| PCIe version | 2.0 | 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.
Benchmark coverage: 68%
Phenom II X4 840 outperforms Atom N550 by 749% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Phenom II X4 840 outperforms Atom N550 by 408% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Phenom II X4 840 outperforms Atom N550 by 530% in GeekBench 5 Multi-Core.
Pros & cons summary
| Recency | 4 January 2011 | 23 August 2010 |
| Physical cores | 4 | 2 |
| Cost | $90 | $86 |
| Power consumption (TDP) | 95 Watt | 8 Watt |
We couldn't decide between Phenom II X4 840 and Atom N550. We've got no test results to judge.
Note that Phenom II X4 840 is a desktop processor while Atom N550 is a notebook one.
Should you still have questions on choice between Phenom II X4 840 and Atom N550, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
