This old thread keeps popping up as a top result when I try to search for some information, so I'm adding some useful information to this thread:
Useful List of 120Hz and 144Hz monitors
Overclockable 120Hz Monitors
- QNIX QX2710 Evolution 2 ...... 27″ 2560×1440 ~90Hz – 130Hz
- X-Star DP2710 ...... 27″ 2560×1440 ~90Hz – 130Hz
- Overlord Tempest X270OC ...... 27″ 2560×1440 ~90Hz – 130Hz
- Overlord PCB Upgrade ...... 27″ 2560×1440 ~90Hz – 130Hz
- Catleap 2B ...... 27″ 2560×1440 ~120Hz
- Certain HDTV televisions ....
HDTV Refresh Overclocking HOWTO: 120Hz television as a monitor
LightBoost 120Hz Monitors
has the LightBoost strobe backlight that can eliminate motion blur, see LightBoost HOWTO
- ASUS VG248QE ...... 24″ 1920×1080 144Hz
- ASUS VG278H ...... 24″ 1920×1080 120Hz
- ASUS VG278HE ...... 27″ 1920×1080 144Hz
- BENQ XL2411T 24″ ...... 1920×1080 144Hz
- BENQ XL2420T 24″ ...... 1920×1080 120Hz
- BENQ XL2420TX ...... 24″ 1920×1080 120Hz
- BENQ XL2420TE ...... 24″ 1920×1080 144Hz
- BENQ XL2720T ...... 27″ 1920×1080 120Hz
- ACER HN274H
B bmiiid ...... 27″ 1920×1080 120Hz
Samsung 120Hz Monitors
has a strobe backlight that can eliminate motion blur, see Samsung Zero Motion Blur HOWTO
- Samsung S23A700D ...... 23″ 1920×1080 120Hz
- Samsung S23A750D ...... 23″ 1920×1080 120Hz
- Samsung S23A950D ...... 23″ 1920×1080 120Hz
- Samsung S27A700D ...... 27″ 1920×1080 120Hz
- Samsung S27A750D ...... 27″ 1920×1080 120Hz
- Samsung S27A950D ...... 27″ 1920×1080 120Hz
Other/Older 120Hz Monitors
- ASUS VG236H ...... 23″ 1920×1080 120Hz
- ASUS VG236HE ...... 23″ 1920×1080 120Hz
- BENQ XL2410T ...... 24″ 1920×1080 120Hz
- ACER GN245HQ, GD245HQ ...... 24″ 1920×1080 120Hz
- ACER GD235HZ ...... 23″ 1920×1080 120Hz
- ACER HN274
H bmiiid ...... 27″ 1920×1080 120Hz
- Alienware AW2310 ...... 23″ 1920×1080 120Hz
- Planar SA2311W ...... 23″ 1920×1080 120Hz
- LG W2363D-PF ...... 23″ 1920×1080 120Hz
- Viewsonic VX2265wm, VX2268wm ...... 22″ 1680×1050 120Hz
- Samsung 2233rz ...... 22″ 1680×1050 120Hz
- Viewsonic V3D245 ...... 24″ 1920×1080 120Hz
(List taken from
120Hz monitors)