Side-by-Side Comparison
ezcap334P 4K PCIe Video Capture Card vs ezcap 333P
Standardized 5-pillar engineering audit, thermal telemetry, verified longevity metrics, and complete technical specification diff.
★ Recommended Winner
▲ DOCUMENTED QUIRKS
Composite Score:
4.2
/ 5.0
A driverless PCIe Gen3 x1 capture card offering fluid 4K60 and high-refresh HDMI 2.0 passthrough with VRR and HDR, though recording at maximum resolutions relies on compressed MJPG encoding.
▲ DOCUMENTED QUIRKS
Composite Score:
4.0
/ 5.0
Cost-effective UVC capture card delivering sub-50 ms latency and flexible 3.5 mm audio mixing, balanced against lightweight polymer build quality and compressed 4K60 pass-through.
⚖️
Mizex Comparative Audit Verdict
The ezcap334P 4K PCIe Video Capture Card earns the higher Mizex Composite Score (4.2 vs 4.0), leading across 4 of 5 engineering pillars. With superior ratings in Engineering & Architecture, Build Quality & Materials, Thermal, Power & Acoustics, Real-World Reliability, it represents the superior reliability choice.
5-Pillar Engineering Telemetry
Detailed comparison across standardized normalized 1.0 – 5.0 engineering pillars.
ezcap334P 4K PCIe Video Capture Card
ezcap 333P
Engineering & Architecture
(30%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.2)
4.1
3.9
Build Quality & Materials
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.6)
4.2
3.6
Thermal, Power & Acoustics
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.2)
4.1
3.9
Real-World Reliability
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.3)
4.3
4.0
Buyer Value & Upgrades
(10%)
Winner: ezcap 333P (+0.3)
4.3
4.6
ezcap334P 4K PCIe Video Capture Card: Strengths & Caveats
✔ Advantages
- HDMI 2.0 passthrough supporting up to 4Kp60, 1440p144, and 1080p240 with VRR and HDR
- UVC class compliance enables driverless plug-and-play operation across Windows streaming applications
- Sub-50ms capture latency with dedicated 3.5mm line-in and line-out hardware audio routing
✖ Documented Caveats
- Capturing at 4Kp60, 1440p144, or 1080p240 relies on compressed MJPG encoding
- Uncompressed true-color RGB24 capture is restricted to 1080p60
- Demands significant host decoding resources with a minimum Intel Core i7 or AMD Ryzen 7 requirement
ezcap 333P: Strengths & Caveats
✔ Advantages
- Supports uncompressed RGB24 capture at 1080p60 and high-framerate capture up to 1080p120
- Driverless UVC and UAC plug-and-play compliance across Windows, macOS, and Linux
- Comprehensive 3.5 mm audio connectivity featuring independent mic, line-in, and headset jacks
- Low hardware latency under 50 ms for real-time monitoring
✖ Documented Caveats
- 4K60 input and loop-out pass-through is constrained to YUV420 chroma subsampling
- Lacks high dynamic range (HDR) and variable refresh rate (VRR) pass-through support
- Lightweight all-plastic housing lacks internal connector reinforcement brackets
Technical Specification Comparison
Side-by-side spec alignment. Rows highlighted with subtle shading denote differing specifications.
| Specification | ezcap334P 4K PCIe Video Capture Card | ezcap 333P |
|---|---|---|
| Brand DIFF | ezcap | — |
| Model DIFF | ezcap334P 4K PCIe Video Capture Card | ezcap 333P |
| Interface DIFF | PCIe Gen3 x1 | — |
| Video Input DIFF | HDMI 2.0 | HDMI 1.4b (up to 3840 x 2160 at 60 Hz YUV420) |
| Video Output (Passthrough) DIFF | HDMI 2.0 | — |
| Audio Input DIFF | HDMI, 3.5mm Line-In (TRS) | — |
| Audio Output DIFF | HDMI, 3.5mm Line-Out (TRS) | — |
| Max Passthrough Resolutions DIFF | 2160p60, 1440p144/120, 1080p240 | — |
| Variable Refresh Rate (VRR) DIFF | Supported | — |
| High Dynamic Range (HDR) DIFF | Supported | — |
| Max Recording Resolutions DIFF | 3840x2160 (60fps MJPG, 30fps NV12/I420), 2560x1440 (144fps MJPG, 60fps NV12/I420, 50fps YUY2), 1920x1080 (240fps MJPG, 120fps NV12/I420, 60fps YUY2/RGB24) | — |
| Supported Video Formats DIFF | MJPG, NV12, I420, YUY2, RGB24 | NV12, YUY2, RGB24 (up to 1080p60) |
| RGB24 Maximum Resolution DIFF | 1080p60 | — |
| Capture Latency DIFF | <50ms | — |
| Driver Standard DIFF | UVC (Driver-Free) | UVC (USB Video Class) & UAC (USB Audio Class), Driverless |
| Status Indicator DIFF | Multi-Color LED | — |
| Dimensions DIFF | 5.94 x 4.76 x 0.87 in (151 x 121 x 22 mm) | 4.33 x 2.48 x 0.87 in (110 x 63 x 22 mm) |
| Operating System Compatibility DIFF | Windows 10 / Windows 11 (64-bit) | Windows 10/11 (64-bit), macOS 10.15+, Linux, ChromeOS, Android |
| Minimum System CPU DIFF | Intel Core i7-6xxx / AMD Ryzen 7 | — |
| Minimum System GPU DIFF | NVIDIA GeForce GTX 10-series | — |
| Host Interface DIFF | — | USB 3.1 Gen 1 Type-C (5 Gbps) |
| Video Pass Through DIFF | — | HDMI Loop-Out (up to 4K60 YUV420, 4K30, 1440p60, 1080p120) |
| Maximum Capture Resolution DIFF | — | 3840 x 2160 at 30 fps (NV12), 2560 x 1440 at 60 fps (NV12), 1920 x 1080 at 120 fps (NV12) |
| Audio Inputs DIFF | — | HDMI embedded, 3.5 mm TRS Line In, 3.5 mm TRS Mic In, 3.5 mm TRRS Headset In |
| Audio Outputs DIFF | — | HDMI embedded pass-through, 3.5 mm TRRS Line/Headset Out |
| Hardware Latency DIFF | — | < 50 ms |
| Weight DIFF | — | 2.22 oz (63 g) |
| Thermal Solution DIFF | — | Passive convective venting |
| Power Source DIFF | — | USB Bus Powered (5V DC via Type-C) |
| Status Indicators DIFF | — | Tri-color LED (Red: Power, Blue: HDMI Signal, Green: Active Run) |
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