Side-by-Side Comparison
ezcap334P 4K PCIe Video Capture Card vs AVerMedia Live Gamer Ultra S
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:
4.1
/ 5.0
A well-engineered external capture solution delivering 4K60 HDR and high-refresh VRR support within a compact, completely silent solid-state footprint.
⚖️
Mizex Comparative Audit Verdict
The ezcap334P 4K PCIe Video Capture Card earns the higher Mizex Composite Score (4.2 vs 4.1), leading across 4 of 5 engineering pillars. With superior ratings in Build Quality & Materials, Thermal, Power & Acoustics, Real-World Reliability, Buyer Value & Upgrades, 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
AVerMedia Live Gamer Ultra S
Engineering & Architecture
(30%)
Tie
4.1
4.1
Build Quality & Materials
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.1)
4.2
4.1
Thermal, Power & Acoustics
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.1)
4.1
4.0
Real-World Reliability
(20%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.1)
4.3
4.2
Buyer Value & Upgrades
(10%)
Winner: ezcap334P 4K PCIe Video Capture Card (+0.2)
4.3
4.1
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
AVerMedia Live Gamer Ultra S: Strengths & Caveats
✔ Advantages
- Supports 4K60 HDR, 1440p, ultrawide, and up to 1080p240 VRR capture
- Native 5.1 surround sound audio ingestion capability
- Compact and silent solid-state external form factor
- Streamlined configuration through AVerMedia Streaming Center
✖ Documented Caveats
- Limited to HDMI 2.0 bandwidth rather than HDMI 2.1
Technical Specification Comparison
Side-by-side spec alignment. Rows highlighted with subtle shading denote differing specifications.
| Specification | ezcap334P 4K PCIe Video Capture Card | AVerMedia Live Gamer Ultra S |
|---|---|---|
| Brand DIFF | ezcap | AVerMedia |
| Model DIFF | ezcap334P 4K PCIe Video Capture Card | AVerMedia Live Gamer Ultra S |
| Interface DIFF | PCIe Gen3 x1 | HDMI 2.0 |
| Video Input DIFF | HDMI 2.0 | — |
| 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 | Supported (up to 1080p240 VRR) |
| 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 | — |
| RGB24 Maximum Resolution DIFF | 1080p60 | — |
| Capture Latency DIFF | <50ms | — |
| Driver Standard DIFF | UVC (Driver-Free) | — |
| Status Indicator DIFF | Multi-Color LED | — |
| Dimensions DIFF | 5.94 x 4.76 x 0.87 in (151 x 121 x 22 mm) | — |
| Operating System Compatibility DIFF | Windows 10 / Windows 11 (64-bit) | — |
| Minimum System CPU DIFF | Intel Core i7-6xxx / AMD Ryzen 7 | — |
| Minimum System GPU DIFF | NVIDIA GeForce GTX 10-series | — |
| Model Number DIFF | — | GC553Pro |
| Form Factor DIFF | — | External |
| Max Capture Resolution DIFF | — | 4K at 60Hz HDR |
| Supported Resolutions DIFF | — | 4K60, 1440p, 1080p240, Ultrawide |
| Audio Ingest DIFF | — | 5.1 Surround Sound |
| Companion Software DIFF | — | AVerMedia Streaming Center |
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