Samsung CFG70 Review
by Lim, February 15, 2017 3:15 pm

 

 

Samsung CFG70 Review - 144 Hz, solid blacks, and crazy intense Quantum Dot VA colors

 

NEW Samsung CFG73 Update: Click Here


NOTE
(This was a long article in German before releasing this page in English):

1. Since the article was very long, I cut it and just put all Photos in different slideshows under each topic.
2. Measurements are in German. However, the headings of the columns should be easy to assign.

 

 

Updates

1. Some units of this monitor have flickering issues (reported from other users, at the time where I've reviewed the Samsung CFG70 I don't have had an AMD graphics card to test Freesync)
2. Mentioned in the German review: Text Inversion Issues (as same as on the Samsung CHG70) which causes some text sharpness


Introduction

The Samsung CFG70, the first test on LimsCave.com. Its Samsung newest curved gaming monitor in 23.5" Inch (also available in 27" Inch), with a 6-Bit + FRC panel, and a contrast ratio of 3000:1. The Samsung CFG's special features are the Quantum Dot technology, with which, colors become a huge boost in color intensity. This means that the Samsung CFG70 has a color space of 125% factory calibrated. The CFG70 is equipped with AMD's Freesync technology, which ensures that tearing and stutters are eliminated. You should keep in mind that the monitor "only" supports a Freesync range of 70-144 Hz. Moreover, the Samsung has a FULL HD (1920 x 1080) resolution with 144 Hz and an MPRT (Motion Picture Response Time) of 1 Ms. On top the Samsung CFG70 also has a strobing (equal to ULMB) feature.

Sounds like a perfect monitor? In theory, yes. The Samsung, unfortunately, has some bigger issues, with which the most of the people probably can't deal with. Purple artifacts can destroy this monitor completely, while in my experience these artifacts can vary within each individual unit. My first CFG70 (manufactured September 2016) had only a tiny bit of purple artifacts so that I don't mention them in my first review. My second unit (manufactured in October 2016) was the 27" Inch version and here purple artifacts went into orange artifacts. These orange artifacts were much better and much less visible but still present. My third model (manufactured November 2016) had pretty crazy obvious purple artifacts, and now I understand why the CFG70 has so many bad ratings. In Germany, Samsung wrote me an email where they told me that they offer a firmware upgrade within their customer support. For a "fix" you have to send the monitor to a Samsung partner.

You may ask if Samsung has fixed this issue within their new model Samsung CFG73 with a new food stand design? Well, I cannot tell for now, at least not for 100%, but first reporting from different users says that the CFG73 also have purple artifact issues.

IMPORTANT(!) Updates and new information about the Asus PG278QR can be found at the bottom of the article or in the table of contents (if available). A forum thread on this monitor does not exist(!)

 


Specifications

Panel Type Quantum Dot VA
Backlight Edge LED
Display size and aspect ratio 24" inch and 27" inch / 16:9
Maximum Resolution 1920x1080 (Full HD)
Pixel density 91.8 ppi (Pixels per inch)
Refresh rate 144 Hz
Native color depth and color space 8-bit / sRGB
Response time ( 1 Ms MPRT + Backlight Strobing feature
Brightness 350cd/m2
Integrated speakers No
Video inputs 2x DisplayPort 1.2, 1x HDMI 1.4
Audio 3.5mm Audio out
USB Hub No
Power consumption 24" Inch 36W / 55W max., 27" Inch 38W / 58W max.
23.5" Panel dimensions WxHxD with foot stand 545 x 529.9 x 386.4mm
23.5" Panel dimensions WxHxD without foot stand 545 x 325.1 x 70.4mm
27" Panel dimensions WxHxD with foot stand 621.2 x 550.6 x 386.4mm
27" Panel dimensions WxHxD without foot stand 621.2 x 366.9 x 91.7mm
Frame width 10-13mm
Weight 23.5" 5.2Kg / 27" 6.2Kg
Warranty 2 Years
Ergonomics Tilt, Height, Pivot, Swivel
Adaptive Sync Freesync
Freesync Range 70-144Hz via DisplayPort 1.2
Contrast (Native) 3000:1
Vesa Yes 100mm
Curved 1800R
 

 

 

Alternatives

Alternative 144 Full HD (1920x1080) VA monitors to the Samsung CFG70:
(All other alternatives are listed in the Gaming-Monitor-List. Future releases can be found here)

 

Find the Samsung CFG70 here: Buy 23.5" or 27" on Amazon

 

G-Sync

Acer Predator Z271 Buy on Amazon
Acer Predator Z271T Buy on Amazon
Lenovo Y27g Buy on Amazon
Y27G Razer Edition Buy on Amazon

Freesync

Samsung CFG73 (newer version) in 23.5" Buy on Amazon or 27" Buy on Amazon
Asus XG27VQ Buy on Amazon
Aoc AG272FCX Buy on Amazon
MSI Optix G27C Buy on Amazon
Lenovo Y27f Buy on Amazon
Medion X57425 Buy on Amazon

 

- 32" Inch

Medion X58426 Buy on Amazon

BenQ EX3200R Buy on Amazon
Viewsonic XG3202-C Buy on Amazon

 

 

YouTube Video Review

 

 

 


Delivery

 

 

Footstand

 

Connections

 

Navigation & OSD

 

Arena Lighting

 

Greyscale Test

Ufost

 

Black Level (normal and long shutter speed)

 

Viewing Angles

 
 

The Curve

 

Response Time


Ufo Test

 

Brightening "strip" on the right

 

 

 

Review Update 1.1 (CFG70 in 27" Inch)

Purple Artifact "FIX"

Like mentioned, on my 27" Inch unit purple artifacts were "gone". Instead there were orange artifacts. In my experience purple artifacts vary in each individual unit. So its a "lottery" unfortunately. you may ask Samsung in your country if they offer a fix for your monitor.

 

 

YouTube Video Review Update

 

 

 


Brightening "strip" now also on the left

The 27" inch model had the same problem which I've had on my 24" Inch model. But now on both sides.

 


Banding

Also, a problem is, that my 27" Inch unit has huge banding issues (not color banding). The illumination on my unit was pretty bad and disturbed especially while watching movies.

 


Measurement data

Contrast, Brightness, and Black Point:


 

Presets and Measurements:

Default settings:
 

Results on default settings:


 

Measured color temperature:

 

Measured gamma:



 

Measurements with optimal settings

Optimal settings (on my unit)

Results:

Deviation:

 

Backlight Strobing


Optimale Settings for Backlight Strobing (on my unit):

 

Homogeneity (brightness distribution)



Homogeneity (color purity)

 

 

Comparison Charts

Maximum brightness in cd/m2
Asus PG258Q
488
Dell S2716DG
424
Samsung S25HG50
421
Acer XB271HUA
419
Asus PG278QR
399
LG 24GM79G
384
Asus PG279Q
369
Viewsonic XG2703-GS
367
Samsung CFG70
361
Eizo Foris FS2735
333
Maximum contrast x:1
Samsung CFG70
2654
Asus PG279Q
1181
Viewsonic XG2703-GS
1174
LG 24GM79G
1100
Eizo Foris FS2735
1084
Asus PG258Q
995
Asus PG278QR
964
Samsung S25HG50
924
Acer XB271HUA
784
Dell S2716DG
686
Black point with optimal settings (120 cd/m2 , 6500K)
Samsung CFG70
0,05
Eizo Foris FS2735
0,1
Viewsonic XG2703-GS
0,1
LG 24GM79G
0,11
Asus PG279Q
0,12
Asus PG278QR
0,13
Asus PG258Q
0,13
Samsung S25HG50
0,15
Acer XB271HUA
0,16
Dell S2716DG
0,17
Maximum brightness in cd/m2 with activated ULMB or strobe backlight
Asus PG258Q
275
LG 24GM79G
228
Samsung CFG70
212
Eizo Foris FS2735
197
Dell S2716DG
153
Acer XB271HUA
148
Asus PG278QR
147
Viewsonic XG2703-GS
140
Asus PG279Q
129
Samsung S25HG50
0

 

Pro & Contra

 

 

Pro:

- Backlight Strobing (Note that you cannot change brightness while this feature is activated so you have to live with around 220 cd/m2)
- Quantum Dot panel with a color space of 125% sRGB for very intense colors, especially reds
- Very good illumination (No clouding and Backlight Bleed)
UPDATE: My first unit was perfect, while my second unit had huge banding issues, my third unit was good
- VA with a good response time
- Very good black level
- 144 Hz
- Good stable Contrast
- 3 own profiles with 3 macro buttons
- Factory calibrated
- Good viewing angles at brighter image content

Neutral:

- Curved with a radius of 1800R (consider, curve is not that much noticeable and makes the illumination and black uniformity worse in general)
- Semi-matte panel coating (I like it)
- No build in speakers
- Full HD Resolution
- Arena Lighting

Contra:

- Reported Freesync issues from a lot of users (flickering issues) When I had the CFG70 I don't have had an AMD graphics card
- Brightening strip on the right
UPDATE: My 27" inch model had this issues on the left + right, my third model again only on the right
- VA Glow (Viewing angles in dark image content)
- Foot Stand takes a LOT of space
- No USB hub
- Purple artifact issues
- Text Inversion (Text sharpness issue)

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2 comments

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1    Giulio    April 4, 2017 1:30 pm
Nice review, please add that with ULMB enabled maximal luminance with contrast 100 is about 250/260 cd/m ;)
Answer from Lim's Cave - April 9, 2017 11:43 pm

Thanks for the Info, forget to measue on contrast 100 ~~ But you have to consider that your gradients will suffer above contrast 75

2    Vikram    May 7, 2018 10:23 am
Thanks for your reviews, Lim. I was wondering if you could test whether the C27FG70 is flicker-free. I am very sensitive to PWM, and the C24FG70 has already been tested to be flicker free by pcmonitors.info. However, I don't know if the same is true of the 27 inch model. Knowing if it is flicker free would really help finalize my buying decision.

(I can't go for the CFG73 as only the CFG70 is currently sold in my country)
Answer from Lim's Cave - May 12, 2018 10:23 am

The CFG series is flicker free as long as you do not use backlight strobing of course. I am to 99% sure that the 27 Inch version also is flicker free