# What is the most energy-efficient compact desktop PC? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the most energy-efficient compact desktop PC?

## Products

### ACEMAGIC ACEMAGIC K1 AMD Ryzen Embedded R2544 Mini PC
```yaml
product: acemagic-acemagic-k1-amd-ryzen-embedded-r2544-mini-pc
brand: ACEMAGIC
price_gbp: 233.32
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 16GB DDR4 SO-DIMM
cpu_model: AMD Ryzen Embedded R2544
dimensions: 128.2 x 128.2 x 41mm
storage_size: 512GB
graphics_card: Radeon Vega 8 Graphic
operating_system: Windows 11 PRO
number_of_usb_ports: 6
```

- **Price:** £233.32 [^1]
- **Summary:** ACEMAGIC K1 is a compact mini PC built around the AMD Ryzen Embedded R2544 with 16GB DDR4 RAM and a 512GB M.2 2280 SATA SSD. It runs Windows 11 Pro and uses integrated Radeon Vega 8 graphics, designed for everyday office/home workloads with compact footprint. The front/back connectivity includes multiple USB-A ports plus video outputs for 4K displays.
- **Ideal For:** For the most energy-efficient compact desktop PC, its AMD Ryzen Embedded R2544 (integrated Radeon Vega 8) paired with a small 128.2 x 128.2 x 41mm chassis targets low-power office/desktop use versus power-hungry discrete-GPU systems.
- **Additional Sources:** [^2], [^1], [^2]

### GEEKOM GEEKOM A5 Mini PC with AMD R7-5825U | R5-7430U
```yaml
product: geekom-geekom-a5-mini-pc-with-amd-r7-5825u-r5-7430u
brand: GEEKOM
price_gbp: 293.72
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 16 GB
cpu_model: AMD Ryzen™ 7 5825U
dimensions: 4.61x4.41x1.94 in
storage_size: 512 GB
graphics_card: AMD Radeon™ Graphics
operating_system: Windows 11 Pro
number_of_usb_ports: 6
```

- **Price:** £293.72 [^3]
- **Summary:** The GEEKOM A5 is a compact mini PC built around AMD Ryzen mobile processors, paired with integrated Radeon graphics and Windows 11 Pro. It's designed for everyday work like multitasking, office use, and light creative tasks, while offering upgradeable memory and storage. It also includes a lot of connectivity for its size, including multiple USB ports and video outputs for multi-monitor setups.
- **Ideal For:** For the most energy-efficient compact desktop use case, it pairs an AMD Ryzen 7 5825U (low-power mobile CPU) with integrated AMD Radeon Graphics and compact 4.61x4.41x1.94 in chassis, reducing power draw versus full-size desktops while staying small.
- **Additional Sources:** [^4], [^5], [^3], [^4], [^5]

---
## References & Sources
[^1]: Best Buy, accessed 2026-06-24. https://www.bestbuy.com/product/acemagic-k1-4k-uhd-mini-pc-md-ryzen-embedded-r2544-16gb-ddr4-ram-512gb-m-2-ssd-win-11-pro-wifi5-bt-black/J33HRWKZPG
[^2]: ACEMAGIC Official Store, accessed 2026-06-24. https://acemagic.com/products/k1-r2544-mini-pc
[^3]: GEEKOM, accessed 2026-06-24. https://www.geekompc.com/geekom-a5-mini-pc/
[^4]: Newegg, accessed 2026-06-24. https://www.newegg.com/p/2W1-003V-00002
[^5]: Best Buy, accessed 2026-06-24. https://www.bestbuy.com/product/geekom-a5-mini-pc-amd-ryzen-7-5825u-up-to-4-5ghz-16gb-ddr4-ram-512gb-m-2-pcie-nvme-ssd-windows-11-pro-pre-installed-rose-gold/J3GW668X3Y/sku/10152219