GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5)
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5) is a niche pick — read recent reviews before buying in the power supplies category, priced around $79.99. Read recent reviews carefully before committing.
The GP-UD850GM-A PG5 introduces a variety of high-quality materials and top-notch design. Enjoy unrivaled performance with Japanese capacitors, and a +12V Single Rail which will provide exceptional power output and stability for your system.
SpecPicks Verdict
SpecPicks classifies GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ 850W Capactiy with Single +12V Rail
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 850W Capactiy with Single +12V Rail
- 80 Plus Gold Certified
- ATX 3.1 and PCIe Gen 5.0 Ready
- ATX Form Factor
- Fully Modular Design
- Japanese Capacitors
Full Specifications
| Brand | GIGABYTE |
|---|---|
| Wattage | 850 watts |
| Model Name | GP-UD850GM-A PG5 |
| Unit Count | 1.0 Count |
| Form Factor | ATX |
| Model Number | GP-UD850GM-A PG5 |
| Connector Type | ATX, PCI Express |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 Watts |
| Item Dimensions | 5.9 x 5.5 x 3.4 inches |
| Mfr Part Number | GP-UD850GM-A PG5 |
| Compatible Devices | Desktop PC, Gaming Workstation, Motherboards (ATX, mATX, ITX), Graphics Cards, Processors, and other internal components |
| Power Supply Design | Full Modular |
Ready to buy?
GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Related Power Supplies
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best 1440p Gaming GPUs in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best Retro Handhelds in 2026 — From $35 to $500
- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
More reviews from the SpecPicks archive
Browse all reviews →- Best GPU for Gaming in 2026: Our Top 5 Picks Tested
- Claude Fable 5 Launches at #1 on the Intelligence Index — What Local Builders Should Take Away
- Oomwoo: The Open-Source, 3D-Printed Robot Vacuum That Skips the Cloud
- Best GPU for AI image generation in 2026 — Flux, SDXL, SD 3.5
- Best CPU Cooler for Ryzen 7 9800X3D in 2026
- Best CPU Cooler for AM4 Ryzen in 2026
- Imaging Vintage IDE Drives with a CompactFlash + USB Adapter
- Best PS4 & PS5 Controllers for PC Gaming in 2026
- Is the RTX 3060 12GB Still the Best Budget GPU for 1080p Esports in 2026?
- Self-Hosting Jellyfin on a Ryzen 5 5600G: 4K Transcode on the Cheap
- Inside the Creative Katana V2X Soundbar Teardown — and What It Says About Sound Blaster
- Can a Raspberry Pi 4 8GB Run a Local LLM with Ollama?
- AMD Ryzen 9 9950X Hitting 98°C While Streaming?
- Building a Sim Racing Cockpit Under $500: Logitech G29 + Thrustmaster TH8A Shifter
- Ryzen 7 5800X + RTX 5060 Combo Drops to $439 With Free Cooler
- Ryzen 5 5600G vs Ryzen 7 5700X: Best CPU for a First Gaming PC in 2026
- Raspberry Pi Zero 2 W Powers a Privacy-First Ring-Camera Alternative
- Best Retro PC Building Tools & Adapters 2026: The Kit That Ships the Build
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- Intel Arc Pro B60 Gaming Guide: 24GB Battlemage in 2026
- Best CPU Cooler for Intel Core i7/i9 Builds in 2026
- Asus ProArt PA27USD 27-Inch OLED Review: Color Meets Gaming Speed
- Qwen3.7-Plus vs Gemma 4 12B for Local Agents on a 12GB GPU
- Best Controller for PC Emulation and Retro Gaming in 2026