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You are comparing a 1080p vs 1080p60 capture card for your streaming setup. Both the ASUS TUF Gaming CU4K30 and the Blackmagic Design DeckLink Duo 2 handle 1080p video input. They differ in how they deliver that video and who they serve. The ASUS unit offers higher resolution passthrough and USB connectivity for gamers. The Blackmagic card provides four SDI channels via PCIe for professional multi-source workflows. You need to match the interface and channel count to your hardware.
Capture Resolution
1080p120
Up to 1080p60
Host Interface
USB 3.2 Type-C
PCI Express 4 lane generation 2
Video Interface
HDMI 2.0
3G-SDI
Channel Count
1
4
Passthrough Resolution
4K60 HDR
not listed
Choose the first if
- You need a simple plug-and-play USB connection for a single console or PC source.
- You want to passthrough 4K HDR video to your TV while capturing.
- You are streaming at high frame rates up to 120 fps in 1080p.
Choose the second if
- You require four independent video inputs from SDI sources simultaneously.
- You are building a studio setup with PCIe slots and SDI cabling.
- You need external genlock reference input for precise timing synchronization.
Verdict
The ASUS TUF Gaming CU4K30 suits individual gamers who want easy USB connectivity and high passthrough quality. The Blackmagic Design DeckLink Duo 2 is built for professional environments needing multiple SDI inputs and PCIe stability. Choose based on your interface needs and channel count requirements.
1080p vs 1080p60 Capture Cards
Capture resolution
Edge: ASUS TUF Gaming CU4K30 Capture Card
The ASUS TUF Gaming CU4K30 captures video at up to 1080p120, offering a higher frame rate than the Blackmagic Design DeckLink Duo 2, which caps at 1080p60. This means the ASUS card can record smoother motion for fast-paced games. The Blackmagic unit is limited to standard 60 frames per second. If you need that extra smoothness for competitive gaming, the ASUS spec is superior. The Blackmagic card is sufficient for standard streaming but lacks the high-frame-rate capability of the ASUS model.
Connection interface
Edge: Tie
Connection methods differ significantly between these two devices. The ASUS TUF Gaming CU4K30 uses a USB 3.2 Type-C host interface, allowing for plug-and-play connectivity with most PCs without extra drivers. In contrast, the Blackmagic Design DeckLink Duo 2 requires a PCIe slot, specifically PCI Express 4 lane generation 2 or higher. This makes the ASUS card easier to set up for casual users, while the Blackmagic card is designed for internal installation in desktop towers, offering a more permanent and potentially more stable connection for professional setups.
Video input type
Edge: Tie
The video interface standards vary between the two products. The ASUS TUF Gaming CU4K30 accepts input via HDMI 2.0, which is the standard connection for most gaming consoles and modern PCs. The Blackmagic Design DeckLink Duo 2 uses 3G-SDI connections. SDI is a professional broadcast standard often found in studios, providing robust signal integrity over longer distances. For typical gamers using consoles or PCs, HDMI is the practical choice. The SDI interface on the Blackmagic card serves a different, more specialized professional niche.
Channel count
Edge: Blackmagic Design DeckLink Duo 2
The number of simultaneous video streams each card supports is a key differentiator. The Blackmagic Design DeckLink Duo 2 features four independent 3G-SDI connections, allowing you to capture and playback up to four video streams at once. The ASUS TUF Gaming CU4K30 is a single-channel device, capturing one video stream at a time. If you need to manage multiple camera angles or sources simultaneously, the Blackmagic card is the only option. For single-source streaming, the ASUS card is sufficient.
Portability and size
Edge: Tie
Physical dimensions and weight impact where you can place these devices. The ASUS TUF Gaming CU4K30 is a compact external box measuring 5.5 by 2.5 by 6.4 inches and weighing 14.9 ounces. It sits outside your computer. The Blackmagic Design DeckLink Duo 2 is an internal card measuring 6 by 6 by 6 inches and weighing only 5.3 ounces. It installs inside your PC case. The ASUS unit is portable and easy to move between systems, while the Blackmagic card is fixed to a specific desktop build.
Which 1080p capture card fits your setup
PC streamers wanting plug-and-play ease
Our pick: ASUS TUF Gaming CU4K30 Capture Card
You connect via USB 3.2 Type-C to any PC. No extra drivers are required. You get near-zero latency and certified OBS compatibility. The alloy shell is durable. You can capture 1080p at 120 fps for smooth motion. This unit is simple for casual streaming setups.
Multi-camera professional video producers
Our pick: Blackmagic Design DeckLink Duo 2
You need four independent 3G-SDI connections for simultaneous capture. The PCIe interface ensures reliable data transfer. You can sync with external genlock signals for precise timing. This card handles 1080p60 across all channels. It is built for professional environments requiring stable, multi-source video workflows.
Console gamers recording high frame rates
Our pick: ASUS TUF Gaming CU4K30 Capture Card
You play on PS5 or Xbox and want high frame rates. This card captures 1080p at 120 fps. You also get 4K passthrough for your display. The USB connection works with your console. You can share audio from headsets directly. It is ideal for high-quality console recording.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | ASUS TUF Gaming CU4K30 Capture Card | 1080p120 streaming with 4K60 HDR passthrough | |
| 2 | Blackmagic Design DeckLink Duo 2 | multi-channel SDI capture with genlock sync |
ASUS TUF Gaming CU4K30 Capture Card
Best for: 1080p120 streaming with 4K60 HDR passthrough
- Capture Resolution
- 1080p
- Passthrough Resolution
- 4K60 HDR
- Host Interface
- USB 3.2 Type-C
- Video Interface
- HDMI 2.0
- HDR Support
- Supported
- Platform
- PC, Xbox, PS5
This USB capture card handles 1080p120 video for smooth streaming. It passes through 4K60 HDR signals, keeping your display sharp. The USB 3.2 Type-C connection offers plug-and-play use without extra drivers. Certified OBS compatibility ensures reliable performance on PC. It fits gamers who want high frame rates at 1080p and clean passthrough for their monitor.
- Captures Full HD video at up to 120 fps
- Passes through 4K HDR video at 60 Hz
- Uses USB 3.2 Type-C for plug-and-play setup
- Certified for OBS Studio compatibility
- Max capture resolution is limited to 4K at 30 fps
- Weighs 14.9 ounces, adding bulk to your desk
- Dimensions of 6.4 x 5.5 x 2.5 inches require space
- You want to stream 1080p content at 120 fps
- You need 4K60 HDR passthrough for your TV
- You prefer a USB connection without driver installation
- You require capture resolutions higher than 4K30
- You need a PCIe card for lower latency
- You want a compact form factor under 10 ounces
Verdict: ASUS TUF Gaming CU4K30 Capture Card suits streamers who prioritize high frame rates at 1080p and clean 4K passthrough. It is a solid choice for USB-based setups that need OBS certification.
Blackmagic Design DeckLink Duo 2
Best for: multi-channel SDI capture with genlock sync
- Capture Resolution
- 1080p60
- Host Interface
- PCI Express 4 lane generation 2
- Video Interface
- 3G-SDI
- Channel Count
- 4
- Color
- Black
- Dimensions
- 6 × 6 × 6 inches
This is a Blackmagic Design DeckLink Duo 2 PCIe card designed for professional video workflows. It supports up to 1080p60 capture resolution across four independent 3G-SDI channels. The device uses a PCIe 4 lane generation 2 interface for reliable data transfer. It includes a reference input for external genlock synchronization. This card suits users who need multi-channel SDI capture with precise timing control in a studio environment.
- Captures four independent video streams simultaneously
- Supports 1080p60 resolution on all channels
- Includes reference input for genlock synchronization
- Uses PCIe 4 lane generation 2 interface
- Requires 3G-SDI input sources rather than HDMI
- Limited to 1080p60 maximum capture resolution
- Uses a bulky 6-inch square form factor
- You need to capture four SDI signals at once
- You require genlock synchronization for multi-camera setups
- Your workflow relies on 3G-SDI video standards
- You only have HDMI output sources
- You need 4K or higher resolution capture
- You prefer compact USB or external devices
Verdict: Blackmagic DeckLink Duo 2 4-Channel PCIe is a specialized tool for professionals managing four SDI streams. It fits users who need genlock sync and multi-channel capture at 1080p60.
Specifications side by side
| Spec | ASUS TUF Gaming CU4K30 Capture Card | Blackmagic Design DeckLink Duo 2 |
|---|---|---|
| Capture Resolution | 4K30, 2K60, 1080p120 | Up to 1080p60 |
| Passthrough Resolution | 4K60 HDR | – |
| Host Interface | USB 3.2 Type-C | PCI Express 4 lane generation 2 |
| Video Interface | HDMI 2.0 | 3G-SDI |
| Channel Count | – | 4 |
| HDR Support | Supported | – |
| Features | HDR | – |
| Color | CU4K30|HDMI 2.0|2160p60 | Black |
| Resolution | 1080p FHD | – |
| Platform | PC, Xbox, PS5 | – |
| Compatible Platform | PlayStation 5, Nintendo Switch | – |
| Use | Gaming | – |
| Connectivity | USB | – |
| Application | Recording | – |
| Dimensions | 6.4 × 5.5 × 2.5 inches | 6 × 6 × 6 inches |
| Weight | 14.9 ounces | 5.3 ounces |
| Model | TUF GAMING CAPTURE BOX-CU4K30 | BDLKDUO2 |
Frequently asked questions
Does 1080p60 require a more powerful PC than 1080p?
Yes. Higher frame rates increase the data load on your system. The Blackmagic Design DeckLink Duo 2 uses a PCIe connection, which offers direct bandwidth to your motherboard. This reduces the burden on your CPU compared to USB devices. You need a PC with an available PCIe slot to use this card effectively.
Can I use a 1080p capture card for PS5 gaming?
It depends on the specific model. The ASUS TUF Gaming CU4K30 explicitly lists PlayStation 5 as a compatible platform. It supports 1080p capture and 4K60 HDR passthrough. This allows you to play on your console while capturing the feed. Check the product attributes for your specific device to ensure console support.
Is USB or PCIe better for 1080p60 capture?
PCIe is generally better for high-bandwidth needs. The Blackmagic Design DeckLink Duo 2 uses a PCIe interface for stable, multi-channel capture. The ASUS TUF Gaming CU4K30 uses USB 3.2, which is convenient for plug-and-play setups. For professional multi-stream work, PCIe provides more reliable connectivity. For casual streaming, USB offers easier portability.
Do I need genlock sync for 1080p60 streaming?
Not usually. Genlock is a specialized feature for professional broadcast environments. The Blackmagic Design DeckLink Duo 2 includes genlock sync for managing multiple SDI streams. This ensures perfect timing across channels. Most streamers do not need this level of synchronization. It is only necessary if you are running multiple synchronized inputs.
Can the ASUS TUF Gaming CU4K30 capture 4K video?
It supports 4K passthrough, not capture. The device allows a 4K60 HDR signal to pass through to your TV. However, it captures video at 1080p resolution. This is useful for playing games in 4K while streaming in 1080p. You cannot record 4K footage with this specific capture card.
Is the Blackmagic Design DeckLink Duo 2 easy to set up?
It requires specific hardware knowledge. This card uses a PCIe interface, so it must be installed inside a desktop computer. It is designed for professionals managing four SDI streams. It is not a plug-and-play USB device. You need a PC with an open PCIe slot and appropriate driver installation.
