Atom x5-Z8550 vs EPYC 9455P
Aggregate performance score
EPYC 9455P outperforms Atom x5-Z8550 by a whopping 10172% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 23 | 3022 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.73 | no data |
| Market segment | Server | Laptop |
| Series | no data | 5x Intel Atom |
| Power efficiency | 9.40 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Turin (2024) | Cherry Trail (2015−2016) |
| Release date | 10 October 2024 (1 year ago) | 8 February 2016 (10 years ago) |
| Launch price (MSRP) | $4,819 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 9455P and Atom x5-Z8550 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 | 48 (Octatetraconta-Core) | 4 (Quad-Core) |
| Threads | 96 | 4 |
| Base clock speed | 3.15 GHz | 1.44 GHz |
| Boost clock speed | 4.4 GHz | 2.4 GHz |
| L1 cache | 80 KB (per core) | no data |
| L2 cache | 1 MB (per core) | 2 MB |
| L3 cache | 256 MB (shared) | 0 KB |
| Chip lithography | 4 nm | 14 nm |
| Die size | 8x 70.6 mm2 | no data |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | 66,520 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on EPYC 9455P and Atom x5-Z8550 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 | SP5 | UTFCBGA1380 |
| Power consumption (TDP) | 300 Watt | no data |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9455P and Atom x5-Z8550. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| Precision Boost 2 | + | no data |
Security technologies
EPYC 9455P and Atom x5-Z8550 technologies aimed at improving security, for example, by protecting against hacks.
| Secure Boot | no data | + |
| Identity Protection | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9455P and Atom x5-Z8550 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9455P and Atom x5-Z8550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR3 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 25.6 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel HD Graphics 400 (Braswell) (200 - 600 MHz) |
| Max video memory | no data | 8 GB |
| Graphics max frequency | no data | 600 MHz |
| Execution Units | no data | 12 |
Graphics interfaces
Available interfaces and connections of EPYC 9455P and Atom x5-Z8550 integrated GPUs.
| Number of displays supported | no data | 3 |
Graphics image quality
Maximum display resolutions supported by EPYC 9455P and Atom x5-Z8550 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 3840x2160 |
| Max resolution over eDP | no data | 2560x1600 |
Peripherals
Specifications and connection of peripherals supported by EPYC 9455P and Atom x5-Z8550.
| PCIe version | 5.0 | 2.0 |
| PCI Express lanes | 128 | 2 |
| USB revision | no data | 3.0 |
| Number of USB ports | no data | 3 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 66.77 | 0.65 |
| Recency | 10 October 2024 | 8 February 2016 |
| Physical cores | 48 | 4 |
| Threads | 96 | 4 |
| Chip lithography | 4 nm | 14 nm |
EPYC 9455P has a 10172.3% higher aggregate performance score, an age advantage of 8 years, 1100% more physical cores and 2300% more threads, and a 250% more advanced lithography process.
The AMD EPYC 9455P is our recommended choice as it beats the Intel Atom x5-Z8550 in performance tests.
Be aware that EPYC 9455P is a server/workstation processor while Atom x5-Z8550 is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
