SIDE-BY-SIDE HARDWARE MATRIX
Canon EOS R3 vs Canon EOS 5D Mark III
Direct specification breakdown comparing Canon's 24.1MP Canon RF-mount body against Canon's 22.3MP Canon EF-mount body.
ACTIVE MATCHUP
Technical Spec Matrix
Green indicators highlight objective numerical advantages.
✓ Smart Win Highlighting Active
Canon EOS R3 Advantages6 Spec Wins
- ✓Higher Sensor Resolution (24.1MP vs 22.3MP)
- ✓More Phase-Detect AF Points (1053pts vs 61pts)
- ✓Faster Continuous Burst (30fps vs 6fps)
- ✓Faster Mechanical Shutter (14fps vs 6fps)
- ✓Faster Electronic Shutter (30fps vs 6fps)
- ✓Superior In-Body Stabilization (8stops vs 0stops)
Canon EOS 5D Mark III Advantages2 Spec Wins
- ✓Longer CIPA Battery Endurance (950shots vs 620shots)
- ✓Lighter Body (950g vs 1015g)
01
Sensor & Image Quality
Effective megapixel count, sensor readout architecture, and lens mount
Effective Sensor Resolution
Canon EOS R324.1 MP
✓ +1.8 MPCanon EOS 5D Mark III22.3 MP
Sensor Architecture & Type
Canon EOS R3Full Frame Stacked BSI CMOS
Canon EOS 5D Mark IIIFull Frame CMOS
Physical Sensor Dimensions
Canon EOS R336.0 × 24.0 mm
Canon EOS 5D Mark III36.0 × 24.0 mm
Aspect Ratios
Canon EOS R33:2 (Native), 4:3, 16:9, 1:1
Canon EOS 5D Mark III3:2 (Native), 4:3, 16:9, 1:1
Native Lens Mount
Canon EOS R3Canon RF
Canon EOS 5D Mark IIICanon EF
Image Processor
Canon EOS R3DIGIC X
Canon EOS 5D Mark IIIDIGIC 5+
02
Autofocus & Shooting Speed
Phase-detect AF points, neural subject tracking, burst speeds, and IBIS stops
Autofocus System
Canon EOS R3Dual Pixel CMOS AF II with Eye Control
Canon EOS 5D Mark III61-Point High Density Reticular AF
Phase-Detect AF Points / Zones
Canon EOS R31,053 points
✓ +992 ptsCanon EOS 5D Mark III61 points
AI Subject Detection
Canon EOS R3Deep Learning Subject Recognition (Human, Animals, Vehicles, Aircraft)
Canon EOS 5D Mark IIIDeep Learning Subject Recognition (Human, Animals, Vehicles, Aircraft)
Max Continuous Burst Speed
Canon EOS R330 fps
✓ +24 fpsCanon EOS 5D Mark III6 fps
Mechanical Shutter Burst
Canon EOS R314 fps
✓ +8 fpsCanon EOS 5D Mark III6 fps
Electronic Shutter Burst
Canon EOS R330 fps
✓ +24 fpsCanon EOS 5D Mark III6 fps
Maximum Shutter Speed
Canon EOS R31/8000s (Mechanical) / 1/32000s (Electronic)
Canon EOS 5D Mark III1/8000s (Mechanical) / 1/32000s (Electronic)
In-Body Image Stabilization (IBIS)
Canon EOS R38 Stops (5-Axis)
✓ +8 stopsCanon EOS 5D Mark IIINo Internal IBIS
03
Video Capabilities
Maximum recording resolution, frame rate capabilities, internal bit depth, and I/O
Max Video Resolution
Canon EOS R36K60 RAW
Canon EOS 5D Mark III1080p30 ALL-I
Supported Frame Rates
Canon EOS R36K60 RAW at maximum sustained frame rate
Canon EOS 5D Mark III1080p30 ALL-I at maximum sustained frame rate
Color Bit Depth & Sampling
Canon EOS R312-bit RAW / 10-bit 4:2:2 C-Log3
Canon EOS 5D Mark III8-bit 4:2:0 H.264
Log Gamma & Cinema Profiles
Canon EOS R3Full Cinema Log Profile Suite
Canon EOS 5D Mark IIIFull Cinema Log Profile Suite
Audio & HDMI I/O
Canon EOS R33.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output
Canon EOS 5D Mark III3.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output
04
Hardware, Ergonomics & Pricing
Memory card slots, EVF optics, CIPA battery rating, weight, dimensions, and price
Memory Card Slots
Canon EOS R31x CFexpress Type B + 1x SD UHS-II
Canon EOS 5D Mark III1x CompactFlash + 1x SD UHS-I
Electronic Viewfinder (EVF)
Canon EOS R35.76M-dot OLED EVF (120fps)
Canon EOS 5D Mark IIIOptical Viewfinder (100% coverage)
Battery Life (CIPA Rated)
Canon EOS R3620 shots
Canon EOS 5D Mark III950 shots
✓ +330 shotsBody Weight (with Battery & Card)
Canon EOS R31015 g
Canon EOS 5D Mark III950 g
✓ 65g LighterDimensions (W × H × D)
Canon EOS R3150.0 × 142.6 × 87.2 mm
Canon EOS 5D Mark III152.0 × 116.4 × 76.4 mm
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