TGDGAMER ATX Open Chassis Test vs TGDGAMER E-ATX Open Frame Test: Spec Comparison
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This tgdgamer open chassis DIY gaming vs e atx open chassis PC comparison helps you choose between two test bench frames. Both units offer an open-air design for maximum airflow and feature no limits on GPU length or CPU cooler height. They both support standard ATX power supplies. The main difference lies in motherboard compatibility and storage capacity. One model supports larger E-ATX boards and more drives, while the other focuses on ATX form factors. You need to check your specific component sizes to decide which frame fits your build best.
Key differences
| Aspect | TGDGAMER ATX Open Chassis Test Bench | TGDGAMER E-ATX Open Frame Test Bench |
|---|---|---|
| Motherboard Support | ATX, M-ATX, ITX | E-ATX, ATX, M-ATX, ITX |
| Storage Support | 1x SSD, 1x HDD | 2x SSD, 2x HDD |
| GPU Length Limit | No limit | No limit |
| CPU Cooler Height Limit | No limit | No limit |
Which one should you choose?
Choose TGDGAMER ATX Open Chassis Test Bench if
- You are building with an ATX, M-ATX, or ITX motherboard and do not need E-ATX support.
- You have only one SSD and one HDD to mount inside the chassis.
- You prefer a slightly more compact footprint for standard ATX components.
Choose TGDGAMER E-ATX Open Frame Test Bench if
- You plan to use a large E-ATX motherboard that requires extra width.
- You need to install two SSDs and two HDDs for storage expansion.
- You want the flexibility to use larger motherboards without fitting issues.
Verdict: Choose the ATX model if your build uses standard ATX boards and minimal storage. Pick the E-ATX model if you require support for larger motherboards or need extra drive bays. Both frames handle large GPUs and coolers equally well.
Comparing TGDGAMER Open Chassis Specs
Motherboard Support
The TGDGAMER ATX Open Chassis Test Bench supports ATX, M-ATX, and ITX motherboards. It is designed for standard and smaller form factors. The TGDGAMER E-ATX Open Frame Test Bench covers more ground. It adds support for E-ATX motherboards to the ATX, M-ATX, and ITX lineup. If you plan to use a large E-ATX board, the E-ATX model is the only choice. Both frames handle the most common sizes without issue. The difference matters only if your specific motherboard exceeds standard ATX dimensions. Choose the E-ATX version for maximum compatibility with high-end boards.
Storage Capacity
Storage options differ between the two cases. The ATX model supports one SSD and one HDD. This is sufficient for a basic setup with a single drive. The E-ATX model doubles this capacity. It supports two SSDs and two HDDs. This extra space helps if you need multiple drives for games or data. Both cases leave the rest of the chassis open, so airflow is not blocked by drives. If you need more than one storage device, the E-ATX frame provides the necessary mounting points. The ATX frame is adequate for minimal storage needs.
GPU Clearance
Both cases offer identical clearance for graphics cards. The specifications list no limit on GPU length for either unit. You can install a very long graphics card in either frame without worrying about space constraints. This is a key feature for open test benches. It allows for the latest high-end cards that often require significant length. There is no practical difference between the two models in this regard. You can choose based on other factors without compromising on GPU size. Both frames handle large cards equally well.
CPU Cooler Height
Cooling clearance is the same for both chassis. Each model specifies no limit on CPU cooler height. This means you can use large air coolers or custom water cooling blocks without hitting the top rails. This open design is ideal for high-performance cooling solutions. Neither case restricts your choice of cooler. The lack of height limits ensures compatibility with almost any standard or custom cooling setup. You do not need to measure your cooler against these frames. Both options provide ample vertical space.
Power Supply Support
Both cases support standard ATX power supplies. The specifications do not indicate any difference in PSU mounting or compatibility. You can use a standard ATX power supply in either frame. This is a common size for most desktop builds. The open design allows for easy cable management around the power supply. There is no advantage to choosing one over the other for PSU support. Both frames accommodate the standard form factor equally. This spec does not influence your decision between the two models.
Which test bench fits your build
Users with large E-ATX motherboards
The E-ATX Open Frame Test Bench supports E-ATX, ATX, M-ATX, and ITX motherboards. This extra size compatibility ensures a secure fit for larger boards. The ATX model only supports up to ATX size. If your motherboard exceeds standard dimensions, this wider frame is the necessary choice for proper installation and stability.
Builders needing extra storage drives
This model supports two SSDs and two HDDs. The ATX version only supports one of each drive type. If you plan to install multiple storage devices for games or data, the E-ATX frame provides the necessary mounting points. The open design keeps these drives accessible for easy upgrades and cable management.
Users with standard ATX systems
This chassis supports ATX, M-ATX, and ITX motherboards. It lacks E-ATX support, which is fine if you use standard or smaller boards. The open frame design offers unlimited GPU length and CPU cooler height. This provides ample airflow for your components without the bulk of a full enclosure, keeping your build compact.
The products compared
TGDGAMER ATX Open Chassis Test Bench
Best for: Large GPU and cooler clearance
- Motherboard Support
- ATX, M-ATX, ITX
- Case Type
- Test Bench
- Max GPU Length
- No limit
- Use
- Gaming
View on Amazon: TGDGAMER ATX Open Chassis Test Bench Affiliate link
This TGDGAMER open chassis supports ATX, M-ATX, and ITX motherboards in black. It offers no limit on GPU length and no limit on CPU cooler height. You can install one SSD and one HDD. It takes a standard ATX power supply. This setup suits builders who need maximum clearance for large graphics cards and tall air coolers without the constraints of a closed box.
Pros
- Supports ATX, M-ATX, and ITX motherboards
- No limit on GPU length
- No limit on CPU cooler height
- Includes mounts for 1 SSD and 1 HDD
Cons
- Only supports one SSD and one HDD
- Does not mention integrated cable management
- Lacks a side panel for dust protection
Good fit if
- You use a very long graphics card
- You install a tall CPU air cooler
- You want easy access to components
Skip if
- You need to store many drives
- You want a dust-free environment
- You prefer a compact closed case
Verdict: TGDGAMER ATX Open Chassis Black is ideal for builders prioritizing component clearance over enclosure. It fits users with large GPUs or coolers who do not need extensive storage or dust shielding.
TGDGAMER E-ATX Open Frame Test Bench
Best for: large GPU and E-ATX motherboard testing
- Motherboard Support
- E-ATX, ATX, M-ATX, ITX
- Max GPU Length
- No limit
View on Amazon: TGDGAMER E-ATX Open Frame Test Bench Affiliate link
This TGDGAMER open frame supports E-ATX, ATX, M-ATX, and ITX motherboards. It allows unlimited GPU length and CPU cooler height, making it ideal for large components. The wide body design aids heat dissipation. It accepts standard ATX power supplies and supports two SSDs and two HDDs. You get a black, spacious build area for custom PC testing.
Pros
- Supports E-ATX, ATX, M-ATX, and ITX motherboards
- No limit on GPU length
- No limit on CPU cooler height
- Wide body for better heat dissipation
Cons
- Open frame design offers no dust protection
- No side panels for component containment
- Limited to standard ATX power supplies
Good fit if
- You need to test large E-ATX motherboards
- You use oversized graphics cards or coolers
- You prioritize airflow over dust protection
Skip if
- You require a fully enclosed case
- You need dust filters
- You want a compact desktop footprint
Verdict: TGDGAMER E-ATX Open Chassis is the right pick if you need unrestricted space for massive GPUs and coolers. It suits builders who prioritize maximum airflow and component compatibility over enclosure.
Specifications side by side
| Spec | TGDGAMER ATX Open Chassis Test Bench | TGDGAMER E-ATX Open Frame Test Bench |
|---|---|---|
| Motherboard Support | ATX, M-ATX, ITX | E-ATX, ATX, M-ATX, ITX |
| Case Type | Test Bench | not stated |
| Max GPU Length | No limit | No limit |
| Use | Gaming | not stated |
| Color | Black | Black |
| Model | OPNE-ATX-BLACK | E-ATX-OPEN |
Frequently asked questions
Can the TGDGAMER ATX Open Chassis fit an E-ATX motherboard?
No. The TGDGAMER ATX Open Chassis Test Bench is designed specifically for ATX motherboards. It does not support the larger E-ATX form factor. If you are building with an E-ATX board, you must choose the E-ATX Open Frame Test Bench instead. The ATX model only accommodates ATX, M-ATX, and ITX sizes.
What is the main difference between the two TGDGAMER test benches?
The primary difference is motherboard compatibility. The ATX Open Chassis supports ATX, M-ATX, and ITX boards. The E-ATX Open Frame Test Bench adds support for E-ATX motherboards. Both models share an open-air design for maximum airflow and unrestricted clearance for large GPUs and CPU coolers.
Which TGDGAMER chassis is better for large graphics cards?
Both models are excellent for large graphics cards. The TGDGAMER ATX Open Chassis Test Bench offers generous clearance for large GPUs. The E-ATX Open Frame Test Bench also provides unrestricted space for massive GPUs. You can choose either one based on your motherboard size requirements.
Do these test benches include side panels for dust protection?
No. Both the TGDGAMER ATX Open Chassis and the E-ATX Open Frame Test Bench feature an open-frame design. They do not include side panels or extensive dust shielding. This open-air construction prioritizes maximum airflow and easy component access over enclosure and dust protection.
Is the TGDGAMER E-ATX frame suitable for standard ATX builds?
Yes. The TGDGAMER E-ATX Open Frame Test Bench supports E-ATX, ATX, M-ATX, and ITX motherboards. It provides a secure fit for standard ATX boards. This model is ideal if you want future-proofing for larger boards while still accommodating current standard sizes.
What color options are available for these TGDGAMER cases?
Both the TGDGAMER ATX Open Chassis Test Bench and the E-ATX Open Frame Test Bench are available in Black. The ATX model carries the model number OPNE-ATX-BLACK. The E-ATX model is identified by the model number E-ATX-OPEN. Both share the same black finish.

