Phenom II X2 550 vs Ryzen 7 1800X
Aggregate performance score
Ryzen 7 1800X outperforms Phenom II X2 550 by a whopping 1311% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 1800X and Phenom II X2 550 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 749 | 2666 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.09 | 0.02 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD Ryzen 7 | no data |
| Power efficiency | 10.26 | 0.86 |
| Architecture codename | Zen (2017−2020) | Callisto (2009−2010) |
| Release date | 2 March 2017 (7 years ago) | 4 November 2009 (15 years ago) |
| Launch price (MSRP) | $499 | $133 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen 7 1800X has 15350% better value for money than Phenom II X2 550.
Detailed specifications
Ryzen 7 1800X and Phenom II X2 550 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 | 8 (Octa-Core) | 2 (Dual-core) |
| Threads | 16 | 2 |
| Base clock speed | 3.6 GHz | 3.1 GHz |
| Boost clock speed | 4 GHz | 3.1 GHz |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 36 | no data |
| L1 cache | 768 KB | 128 KB (per core) |
| L2 cache | 4096 KB | 512 KB (per core) |
| L3 cache | 16384 KB | 6 MB (shared) |
| Chip lithography | 14 nm | 45 nm |
| Die size | 192 mm2 | 258 mm2 |
| Number of transistors | 4,800 million | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 7 1800X and Phenom II X2 550 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 (Uniprocessor) | 1 |
| Socket | AM4 | AM3 |
| Power consumption (TDP) | 95 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 1800X and Phenom II X2 550. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | + | - |
| FMA | FMA3 | - |
| AVX | + | - |
| XFR | + | - |
| SenseMI | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 1800X and Phenom II X2 550 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 1800X and Phenom II X2 550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR3 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 42.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 1800X and Phenom II X2 550.
| PCIe version | n/a | 2.0 |
| PCI Express lanes | 20 | 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.
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 | 10.30 | 0.73 |
| Recency | 2 March 2017 | 4 November 2009 |
| Physical cores | 8 | 2 |
| Threads | 16 | 2 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 80 Watt |
Ryzen 7 1800X has a 1311% higher aggregate performance score, an age advantage of 7 years, 300% more physical cores and 700% more threads, and a 221.4% more advanced lithography process.
Phenom II X2 550, on the other hand, has 18.8% lower power consumption.
The Ryzen 7 1800X is our recommended choice as it beats the Phenom II X2 550 in performance tests.
Should you still have questions on choice between Ryzen 7 1800X and Phenom II X2 550, ask them in Comments section, and we shall answer.
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