The ASUS ExpertCenter PN55 is a strong fit for everyday work if you want a compact Windows PC with room to upgrade. In XDA reviewer João Carrasqueira’s tests, a Ryzen AI 7 450 system with 64GB of RAM handled browsing and Discord well, while graphics-heavy photo editing lagged behind his Mac mini and the fan was more noticeable.
Everyday work, photo editing, and gaming
Carrasqueira used his PN55 review unit in Windows and Linux. He reported smooth browsing with many tabs open and Discord calls in both systems. Affinity photo editing was less responsive than on his Mac mini: adjustments that had appeared in real time moved in steps, and exporting a 24-megapixel JPEG took several seconds. Those are observations from his Ryzen AI 7 450/64GB setup and his own workflow.
He also found Elden Ring and the Grip 2 demo playable without adjustments, while cautioning that the PN55 is not aimed at gaming. The fan spun up often and sounded louder to him than his Mac mini. Carrasqueira says ASUS supplied the review unit and had no input or advance preview of his review.
PN55 and Mac mini M4 benchmark results
XDA’s reported figures put the PN55 ahead of the Mac mini M4 in Cinebench 2026 multi-thread, while the M4 scored higher in the listed graphics and Geekbench comparisons. PCMark 10 gave the PN55 7,948 points and the Lenovo Yoga Mini with Core Ultra X7 358H 9,728.
| Benchmark | ASUS ExpertCenter PN55 (Ryzen AI 7 450) | Mac mini (Apple M4) |
| 3DMark Steel Nomad Light | 2,685 | 4,072 |
| Cinebench 2026 single-thread | 483 | 651 |
| Cinebench 2026 multi-thread | 3,932 | 3,876 |
| Geekbench 7 single-core | 2,603 | 3,274 |
| Geekbench 7 multi-core | 15,076 | 14,404 |
| Geekbench 7 OpenCL | 24,670 | 34,931 |
These results describe specific systems and tests, not every PN55 configuration or workload. The review’s hands-on Affinity comparison is also distinct from its benchmark table: Carrasqueira’s Mac mini experience was better for that photo-editing workflow.
Upgrades and ports
ASUS lists two DDR5-5600 SO-DIMM slots supporting up to 96GB of memory across the PN55 family. It also specifies two M.2 2280 PCIe Gen4x4 slots, with support for NVMe SSDs from 256GB to 2TB. Those are family-level limits; the reviewed system had 64GB installed. ASUS’s PN-series specifications also describe Wi-Fi 7, dual 2.5Gb Ethernet and support for up to four 4K displays.
The reviewed unit’s tool-free access makes the memory and storage slots easier to reach, and Carrasqueira also identified a replaceable M.2 2230 Wi-Fi card. Port selection includes front USB-A and USB-C connections, rear USB4, HDMI and two DisplayPort outputs. Exact ports can vary by configuration.
DiTech’s Spanish-language walkthrough shows the ports and opens the chassis to reveal the memory and storage slots. It is a hardware tour, not a benchmark test.
What the AI tests say about different workloads
ASUS advertises up to 55 AI TOPS on supported configurations. AI TOPS is a measure of processing throughput for AI workloads, but a high figure alone does not tell you how a particular model or application will run.
Carrasqueira’s attempt to run the Gufo local-AI project’s default-instructions model on his 64GB unit produced no meaningful result: even at Q4 quantization, the model was too large for available memory. Separately, QwertyMag reported strong results for a Ryzen AI 7 450 PN55 in its Procyon AI Computer Vision integer-precision tests and said its image- and text-generation results beat a Ryzen AI 7 350 system. The report also placed the PN55’s Radeon 860M at 39%–54% of the ASUS NUC 16 Pro’s Arc B390 results in its graphics tests. These findings concern different tests and tasks, rather than one general measure of “AI performance.”
US configuration and price
On November 4, 2026, the ASUS US e-shop listing showed the PN55 at $1,349.00 with an AMD Ryzen AI R7 450, 32GB of DDR5-5600 memory and a 1TB SSD. That is a separate configuration from XDA’s 64GB review system.
Who should consider the PN55?
The PN55 makes sense if you want a compact Windows desktop for browsing, calls and routine work, with plentiful connections and the option to expand memory and storage. It is a less natural fit if your work leans heavily on graphics-intensive photo editing or you place a high priority on quieter operation. For those workloads, Carrasqueira preferred his Mac mini; XDA’s M4 benchmark results also lead in Steel Nomad Light and Geekbench 7 OpenCL, while the PN55 edges the M4 in the reported Cinebench multi-thread score.
