Athlon X4 845 vs Ryzen AI Max+ 388
Aggregate performance score
Ryzen AI Max+ 388 outperforms Athlon X4 845 by a whopping 742% 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 | 405 | 2081 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Power efficiency | 13.90 | 1.40 |
| Designer | AMD | AMD |
| Manufacturer | no data | GlobalFoundries |
| Architecture codename | Strix Halo (2025−2026) | Carrizo (2015−2018) |
| Release date | no data | 2 February 2016 (10 years ago) |
Detailed specifications
Ryzen AI Max+ 388 and Athlon X4 845 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) | 4 (Quad-Core) |
| Threads | 16 | 4 |
| Base clock speed | 3.6 GHz | 3.5 GHz |
| Boost clock speed | 5 GHz | 3.8 GHz |
| L1 cache | no data | 320K |
| L2 cache | no data | 2 MB |
| Chip lithography | no data | 28 nm |
| Die size | no data | 250 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | no data | 3,100 million |
| 64 bit support | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen AI Max+ 388 and Athlon X4 845 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 | no data | 1 |
| Socket | no data | FM2+ |
| Power consumption (TDP) | 55 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen AI Max+ 388 and Athlon X4 845. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen AI Max+ 388 and Athlon X4 845 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen AI Max+ 388 and Athlon X4 845. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3-2133 |
Peripherals
Specifications and connection of peripherals supported by Ryzen AI Max+ 388 and Athlon X4 845.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 8 |
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 | 18.10 | 2.15 |
| Physical cores | 8 | 4 |
| Threads | 16 | 4 |
| Power consumption (TDP) | 55 Watt | 65 Watt |
Ryzen AI Max+ 388 has a 741.9% higher aggregate performance score, 100% more physical cores and 300% more threads, and 18.2% lower power consumption.
The AMD Ryzen AI Max+ 388 is our recommended choice as it beats the AMD Athlon X4 845 in performance tests.
Be aware that Ryzen AI Max+ 388 is a notebook processor while Athlon X4 845 is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
