Canon 5D Mark IV vs G3X
The Canon EOS 5D Mark IV and the Canon PowerShot G3 X are two digital cameras that were officially introduced, respectively, in August 2016 and June 2015. The 5D Mark IV is a DSLR, while the G3X is a fixed lens compact. The cameras are based on a full frame (5D Mark IV) and an one-inch (G3X) sensor. The 5D Mark IV has a resolution of 30.1 megapixels, whereas the G3X provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5D Mark IV and the Canon PowerShot G3 X? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
The physical size and weight of the Canon 5D Mark IV and the Canon G3 X are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G3 X is considerably smaller (46 percent) than the Canon 5D Mark IV. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G3X has a lens built in, whereas the 5D Mark IV is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 5D Mark IV and their specifications in the Canon EF Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Canon 5D Mark IV||5.9 in||4.6 in||3.0 in||31.4 oz||900||Y||Aug 2016||3,499|
|Canon G3 X||4.8 in||3.0 in||4.1 in||25.9 oz||300||Y||Jun 2015||999|
|Canon 6D Mark II||5.7 in||4.4 in||3.0 in||27.0 oz||1200||Y||Jun 2017||1,999|
|Canon 1D X Mark II||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999|
|Canon 80D||5.5 in||4.1 in||3.1 in||25.8 oz||960||Y||Feb 2016||1,199|
|Canon 5DS||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 5DS R||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon G9 X||3.9 in||2.3 in||1.2 in||7.4 oz||220||n||Oct 2015||529|
|Canon G7 X||4.1 in||2.4 in||1.6 in||10.7 oz||210||n||Sep 2014||699|
|Canon 70D||5.5 in||4.1 in||3.1 in||26.6 oz||920||Y||Jul 2013||1,199|
|Canon 5D Mark III||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499|
|Canon 5D Mark II||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499|
|Canon 5D||6.0 in||4.4 in||3.0 in||31.6 oz||400||Y||Aug 2005||3,299|
|Nikon D850||5.7 in||4.9 in||3.1 in||35.5 oz||1840||Y||Jul 2017||3,299|
|Nikon D800||5.7 in||4.8 in||3.2 in||35.3 oz||900||Y||Feb 2012||2,999|
|Nikon D800E||5.7 in||4.8 in||3.2 in||35.3 oz||900||Y||Feb 2012||3,299|
|Panasonic FZ1000||5.4 in||3.9 in||5.2 in||29.3 oz||360||n||Jun 2014||899|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G3X was launched at a lower price than the 5D Mark IV, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 5D Mark IV features a full frame sensor and the Canon G3 X an one-inch sensor. The sensor area in the G3X is 87 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of chip-set technology, the 5D Mark IV uses a more advanced image processing engine (DIGIC 6+) than the G3X (DIGIC 6), with benefits for noise reduction, color accuracy, and processing speed.
With 30.1MP, the 5D Mark IV offers a higher resolution than the G3X (20MP), but the 5D Mark IV nevertheless has larger individual pixels (pixel pitch of 5.36μm versus 2.41μm for the G3X) due to its larger sensor. Moreover, the 5D Mark IV is a somewhat more recent model (by 1 year and 2 months) than the G3X, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon 5D Mark IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 5D Mark IV for good quality output (200 dots per inch) amounts to 33.6 x 22.4 inches or 85.3 x 56.9 cm, for very good quality (250 dpi) 26.9 x 17.9 inches or 68.3 x 45.5 cm, and for excellent quality (300 dpi) 22.4 x 14.9 inches or 56.9 x 37.9 cm. The corresponding values for the Canon G3 X are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The 5D Mark IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 5D Mark IV has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon PowerShot G3 X are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 125-25600.
For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the 5D Mark IV provides substantially higher image quality than the G3X, with an overall score that is 28 points higher. This advantage is based on 3.4 bits higher color depth, 1.3 EV in additional dynamic range, and 2.5 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Canon 5D||Full Frame||12.7||4368||2912||none||22.9||11.1||1368||71|
|Nikon D850||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100|
|Nikon D800||Full Frame||36.2||7360||4912||1080/30p||25.3||14.4||2853||95|
|Nikon D800E||Full Frame||36.2||7360||4912||1080/30p||25.6||14.3||2979||96|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 5D Mark IV provides a higher video resolution than the G3X. It can shoot video footage at 4K/30p, while the G3X is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 5D Mark IV has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G3X relies on live view and the rear LCD for framing. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The following table reports on some other key feature differences and similarities of the Canon 5D Mark IV, the Canon G3 X, and comparable cameras.
|Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|Canon G3 X||optional||n||3.2||1620||tilting||Y||1/2000s||5.9||Y||Y|
|Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n|
|Canon G9 X||none||n||3.0||1040||fixed||Y||1/2000s||6.0||Y||Y|
|Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
One feature that is present on the 5D Mark IV, but is missing on the G3X is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.The G3X has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 5D Mark IV does not have a selfie-screen.
The Canon 5D Mark IV has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The 5D Mark IV writes its imaging data to Compact Flash or SDXC cards, while the G3X uses SDXC cards. The 5D Mark IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the G3X only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS 5D Mark IV and Canon PowerShot G3 X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|Canon G3 X||Y||stereo||mono||Y||Y||mini||2.0||Y||Y||-|
|Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-|
|Canon G9 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
Studio photographers will appreciate that the Canon 5D Mark IV (unlike the G3X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the 5D Mark IV has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the 5D Mark IV and the G3X are recent models that are part of the current product line-up. The 5D Mark IV replaced the earlier Canon 5D Mark III, while the G3X does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what is the bottom line? Is the Canon 5D Mark IV better than the Canon G3 X or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS 5D Mark IV:
- More detail: Offers more megapixels (30.1 vs 20MP) with a 23% higher linear resolution.
- Better image quality: Scores substantially higher (28 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (3.4 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.3 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.5 stops ISO advantage).
- Better jpgs: Has a more modern image processing engine (DIGIC 6+ vs DIGIC 6).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (7 vs 5.9 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (900 versus 300) on a single battery charge.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Is somewhat more recent (announced 1 year and 2 months after the G3X).
Reasons to prefer the Canon PowerShot G3 X:
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Ready to shoot: Comes with an integrated lens, while the 5D Mark IV requires a separate lens.
- More compact: Is smaller (123x77mm vs 151x116mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 5D Mark IV).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been on the market for longer (launched in June 2015).
If the number of relative strengths (bullet points above) is taken as a guide, the 5D Mark IV is the clear winner of the match-up (20 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 5D Mark IV and the Canon G3 X place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 5D Mark IV or the G3X perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Canon 5D Mark IV||+ +||87/100||4.5/5||5/5||4.5/5||Aug 2016||3,499|
|Canon G3 X||+||..||4.5/5||3.5/5||4/5||Jun 2015||999|
|Canon 6D Mark II||+||80/100||4.5/5||4/5||4/5||Jun 2017||1,999|
|Canon 1D X Mark II||..||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999|
|Canon 80D||+ +||84/100||4.5/5||4.5/5||4.5/5||Feb 2016||1,199|
|Canon 5DS||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 5DS R||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon G9 X||+ +||..||4.5/5||4/5||4.5/5||Oct 2015||529|
|Canon G7 X||+ +||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699|
|Canon 70D||+ +||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199|
|Canon 5D Mark III||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499|
|Canon 5D Mark II||91/100||79/100||4/5||5/5||..||Sep 2008||3,499|
|Canon 5D||88/100||+ +||o||o||..||Aug 2005||3,299|
|Nikon D850||+ +||89/100||4.5/5||5/5||5/5||Jul 2017||3,299|
|Nikon D800||+ +||82/100||5/5||5/5||5/5||Feb 2012||2,999|
|Nikon D800E||..||84/100||5/5||4.5/5||5/5||Feb 2012||3,299|
|Panasonic FZ1000||+ +||82/100||4.5/5||4.5/5||4.5/5||Jun 2014||899|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1D Mark IV vs Canon 5D Mark IV
- Canon 5D Mark IV vs Olympus E-410
- Canon 5D Mark IV vs Olympus XZ-1
- Canon 5D Mark IV vs Panasonic ZS80
- Canon 5D Mark IV vs Pentax K-3
- Canon 5D Mark IV vs Sony H400
- Canon G3 X vs Canon SX510
- Canon G3 X vs Leica M10
- Canon G3 X vs Nikon D40X
- Canon G3 X vs Nikon D500
- Canon G3 X vs Panasonic GF3
- Canon G3 X vs Sony A7R II
Specifications: Canon 5D Mark IV vs Canon G3 X
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Canon 5D Mark IV||Canon G3 X|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-600mm f/2.8-5.6|
|Launch Date||August 2016||June 2015|
|Launch Price||USD 3,499||USD 999|
|Sensor Specs||Canon 5D Mark IV||Canon G3 X|
|Sensor Format||Full Frame Sensor||1" Sensor|
|Sensor Size||36.0 x 24.0 mm||13.2 x 8.8 mm|
|Sensor Area||864 mm2||116.16 mm2|
|Sensor Diagonal||43.3 mm||15.9 mm|
|Sensor Resolution||30.1 Megapixels||20 Megapixels|
|Image Resolution||6720 x 4480 pixels||5472 x 3648 pixels|
|Pixel Pitch||5.36 μm||2.41 μm|
|Pixel Density||3.48 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||100 - 32,000 ISO||125 - 12,800 ISO|
|ISO Boost||50 - 102,400 ISO||125 - 25,600 ISO|
|Image Processor||DIGIC 6+||DIGIC 6|
|DXO Sensor Quality (score)||91||63|
|DXO Color Depth (bits)||24.8||21.4|
|DXO Dynamic Range (EV)||13.6||12.3|
|DXO Low Light (ISO)||2995||521|
|Screen Specs||Canon 5D Mark IV||Canon G3 X|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.2inch|
|LCD Resolution||1620k dots||1620k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 5D Mark IV||Canon G3 X|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/2000s|
|Continuous Shooting||7 shutter flaps/s||5.9 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 5D Mark IV||Canon G3 X|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Geotagging||GPS built-in||no internal GPS|
|Body Specs||Canon 5D Mark IV||Canon G3 X|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||900 shots per charge||300 shots per charge|
151 x 116 x 76 mm
(5.9 x 4.6 x 3.0 in)
123 x 77 x 105 mm
(4.8 x 3.0 x 4.1 in)
|Camera Weight||890 g (31.4 oz)||733 g (25.9 oz)|
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