AOC U27B3A
Amazon: the cheapest today among the stores checked
5.7 out of 10 on the spec sheet +0.7
Buy on AmazonUpdated Nov 12, 2026
Cost the same today; AOC U27B3A has score 0.7 higher (5.7 vs. 5.0).
5.7score · higher
5.0score
AOC wins 2by componentMSI wins 2
AOC U27B3A is the cheaperMSI 275QPF is the cheaper
By the spec rule for each use, the same one the lists on this site use.
Only AOC U27B3A works: General use, 23″ to 27″.
Only MSI 275QPF works: 120 Hz or more, 25″ to 32″.
Only AOC U27B3A works: QHD or 4K with an IPS or OLED panel.
Monitors for creative work (photo and video)Up to $300On sale
Neither one fits: Monitors for competitive gaming, Monitors to use two on the desk, Cheap monitors worth buying.
AOC U27B3A wins on image and connections; MSI 275QPF wins on smoothness and ergonomics.
Amazon: the cheapest today among the stores checked
5.7 out of 10 on the spec sheet +0.7
Buy on AmazonAmazon: the cheapest today among the stores checked
5.0 out of 10 on the spec sheet
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Updated 12/11/2026
Price divided by size and running cost, side by side.
| Math | AOC U27B3A | MSI 275QPF |
|---|---|---|
| Price per inch | $7.04 | $7.04 |
| Item | AOC U27B3A | MSI 275QPF |
|---|---|---|
| Screen | ||
| Type changes | General use and office | Gaming (144 Hz or more) |
| Size | 27 ″ | 27 ″ |
| Resolution changes | 4K | QHD |
| Pixel density changes | 163 ppi | 109 ppi |
| Panel changes | IPS | not listed |
| Aspect ratio | 16:9 | 16:9 |
| Curved screen changes | No | not listed |
| Stated HDR changes | HDR | not listed |
| Smoothness | ||
| Refresh rate changes | 60 Hz | 210 Hz |
| Response time (stated) changes | 4 ms | 3 ms |
| Response time measurement changes | MPRT | not listed |
| Sync changes | Adaptive-Sync | FreeSync |
| Connections | ||
| HDMI ports changes | 2 | 1 |
| DisplayPort ports | 1 | 1 |
| Built-in speaker | Yes | Yes |
| Ergonomics | ||
| Height adjustment changes | not listed | Yes |
| VESA mount holes | Yes | Yes |
| General | ||
| Model code changes | U27B3A | 275QPF |
AOC U27B3A orAOC Q27G3XMN$300 · score 5.0Compare
MSI 275QPF orMSI 245C$110 · score 5.3Compare
AOC U27B3A orAsus VA27EHF2$124 · score 4.7Compare
MSI 275QPF orMSI MP251W$149 · score 5.1Compare
AOC U27B3A orDell P2725D$279 · score 5.5Compare
MSI 275QPF orSceptre QUT168$190 · score 4.5CompareSource: Amazon.com catalog, checked on 12/11/2026.
Lowest price seen for the product on Amazon.com, shipped to New York 10001, on the day it was read, before sales tax. The model is the brand plus the name of the monitor; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure the real calibration or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.