Author Archive: Mark Rejhon

About Mark Rejhon

Also known as Chief Blur Buster. Founder of Blur Busters. Inventor of TestUFO. Read more about him on the About Mark page.

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How does EIZO do 240Hz out of 120Hz?

Posted Oct 30, 2013 by Mark Rejhon

The EIZO Foris FG2421 is marketed by Eizo as a “240Hz” monitor. How is 240Hz accomplished out of simply repeating a 120Hz refresh without interpolation? There a good, valid scientific rationale: 1. First pass refresh is overdriven, done in total darkness (erases previous...

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EIZO announces Foris FG2421, a 240Hz VA gaming monitor!

Posted Oct 30, 2013 by Mark Rejhon

Eizo has announced the Foris FG2421, a new 240Hz VA monitor has been released! This is the retail gaming version of the previously released FDF2405W professional monitor which also uses a official/optional strobe backlight setting to eliminate motion blur. No interpolation is used!...

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Blur Busters helping Google fix 120Hz scrolling in Chrome

Posted Oct 28, 2013 by Mark Rejhon in: Web Browsers

Blur Busters is helping push 120Hz-friendliness into web browsers, with TestUFO Motion Tests, the 120Hz Web Browser Tests as well as Helping Google Fix Chrome 30 Animation Bugs. Recently, Chrome has difficulties with 120Hz smooth scrolling. Even on 120hz monitors, scrolling...

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Variable Refresh Rate: Should be a part of HDMI 3.0

Posted Oct 26, 2013 by Mark Rejhon in: TV

Variable refresh rate technology (G-SYNC) has arrived for computers. Apparently, such technology has spinoffs for fixed-refresh rate applications! HDMI needs to adopt this. Reduced Latency of Fixed Refresh Rates: G-SYNC decouples frame delivery time from refresh length, and reduces scan-out time....

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G-SYNC monitors supporting 177Hz?

Posted Oct 24, 2013 by Mark Rejhon

At least one source mentioned 177Hz support for future G-SYNC monitors, including Guru3D. We noticed this number exactly matches DisplayPort 1.2 single channel bandwidth of 8.8 Gbits/sec. (half of 17.6 Gbits/sec dual-channel). 1920×1080 x 24-bit x 177 Hz = ~8.8...

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G-SYNC reduces input lag for fixed refresh rates too (emulators, etc.)

Posted Oct 24, 2013 by Mark Rejhon

It is observed NVIDIA G-SYNC is also useful for low-latency fixed refresh rate applications as well: It accelerates frame delivery from GPU to monitor: Frames are delivered from GPU to monitor in 1/144sec instead of 1/60sec when running at 60Hz!...

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Motion Blur from Display Persistence, not GtG Transitions

Posted Oct 23, 2013 by Mark Rejhon in: TestUFO

John Carmack of iD Software recently talked about persistence at the G-SYNC launch. Modern LCDs now create more motion blur from persistence (static pixel state) and not from transitions (grey-to-grey). Transitions now take only a fraction of a refresh. Pixels are mostly static...

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G-SYNC monitors supports strobing at 85Hz and at 144Hz

Posted Oct 22, 2013 by Mark Rejhon

UPDATE: This is old information, posted before G-SYNC was released. Blur Busters now has a G-SYNC monitor (see Our Preview of G-SYNC) with ULMB. 85Hz strobing is confirmed, however, 144Hz strobing is not available. Good news for people who want “LightBoost”...

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Media Coverage of G-SYNC

Posted Oct 21, 2013 by Mark Rejhon

We now directly test G-SYNC (preview). That said, we also cover other sites — Here are some of Blur Busters’ favorite external G-SYNC news and media coverage since late 2013. G-SYNC is a variable refresh-rate technology developed by NVIDIA. G-SYNC monitors have...

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ASUS VG248QE is upgradeable to G-SYNC

Posted Oct 21, 2013 by Mark Rejhon

If you already purchased an ASUS VG248QE monitor, or buying it now, you are in luck. The ASUS VG248QE monitor is upgradeable to G-SYNC. Blur Busters plans to publish a G-SYNC Mod Walkthrough, once our G-SYNC upgrade board...

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Upgrade ASUS VG248QE with G-SYNC Kit

Posted Oct 21, 2013 by Mark Rejhon

*** ARCHIVED — DISCONTINUED SINCE 2015 *** Please see List of GSYNC Monitors for a more up-to-date list. Good news: The ASUS VG248QE monitor is G-SYNC upradeable! Don’t know what G-SYNC is? G-SYNC eliminates tearing, eliminates stutters and reduces input lag. See GSYNC...

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How Does G-SYNC Fix Stutters?

Posted Oct 20, 2013 by Mark Rejhon G-SYNC

G-SYNC is a variable refresh rate technology. The refresh rate changes while gaming! People are very surprised that you can have a fluctuating framerate without seeing any stutters. But, surprisingly, it is possible on a variable refresh rate display such...

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