Phenom II X4 955 (125W) vs i7-8550U
Primary details
Comparing Core i7-8550U and Phenom II X4 955 (125W) processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1462 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | no data |
| Power efficiency | 24.27 | no data |
| Architecture codename | Kaby Lake Refresh (2017−2019) | Deneb (2009−2011) |
| Release date | 21 August 2017 (7 years ago) | 1 April 2009 (15 years ago) |
| Launch price (MSRP) | $409 | no data |
Detailed specifications
Core i7-8550U and Phenom II X4 955 (125W) 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) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 1.8 GHz | 3.2 GHz |
| Boost clock speed | 4 GHz | 3.2 GHz |
| Bus type | OPI | no data |
| Bus rate | 4 GT/s | no data |
| Multiplier | 18 | no data |
| L1 cache | 64K (per core) | 128 KB (per core) |
| L2 cache | 256K (per core) | 512 KB (per core) |
| L3 cache | 8 MB (shared) | 6 MB (shared) |
| Chip lithography | 14 nm | 45 nm |
| Die size | 123 mm2 | 258 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Core i7-8550U and Phenom II X4 955 (125W) 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 | FCBGA1356,FC-BGA1356 | AM3 |
| Power consumption (TDP) | 15 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-8550U and Phenom II X4 955 (125W). You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| My WiFi | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Smart Response | + | no data |
Security technologies
Core i7-8550U and Phenom II X4 955 (125W) technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-8550U and Phenom II X4 955 (125W) are enumerated here.
| AMD-V | + | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-8550U and Phenom II X4 955 (125W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR3 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 38.397 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 620 | On certain motherboards (Chipset feature) |
| Max video memory | 32 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.15 GHz | no data |
Graphics interfaces
Available interfaces and connections of Core i7-8550U and Phenom II X4 955 (125W) integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Core i7-8550U and Phenom II X4 955 (125W) integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096 x 2304@24Hz | no data |
| Max resolution over eDP | 4096 x 2304@60Hz | no data |
| Max resolution over DisplayPort | 4096 x 2304@60Hz | no data |
Graphics API support
APIs supported by Core i7-8550U and Phenom II X4 955 (125W) integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-8550U and Phenom II X4 955 (125W).
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 12 | no data |
Pros & cons summary
| Recency | 21 August 2017 | 1 April 2009 |
| Threads | 8 | 4 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 15 Watt | 125 Watt |
i7-8550U has an age advantage of 8 years, 100% more threads, a 221.4% more advanced lithography process, and 733.3% lower power consumption.
We couldn't decide between Core i7-8550U and Phenom II X4 955 (125W). We've got no test results to judge.
Be aware that Core i7-8550U is a notebook processor while Phenom II X4 955 (125W) is a desktop one.
Should you still have questions on choice between Core i7-8550U and Phenom II X4 955 (125W), ask them in Comments section, and we shall answer.
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