How to Guide                                                    

As GPU performance increases, cooling modules are getting larger, making case compatibility an essential factor when upgrading or building a PC. To help DIY builders avoid size constraints, we’ve compiled a comprehensive list of maximum GPU lengths for NVIDIA and AMD graphics cards.

From the RTX 30 to RTX 40 series, here are the longest GPUs in each tier, ensuring you choose a case that fits your graphics card.

Here are the longest AMD Radeon RX 7000 series GPUs to help you pick the right case for your build.

| The Best Case for Full GPU Compatibility – DF4100 E-ATX Case |

From the NVIDIA RTX 40 & 30 series to the AMD Radeon 7000 series, the longest flagship GPUs range from 350mm to 360mm. This means a case must support at least 360mm GPU length for full compatibility.

The darkFlash DF4100 E-ATX case is designed for high-end GPUs, supporting up to 435mm of GPU clearance. Whether you have a compact dual-fan GPU or a massive triple-fan flagship model, the DF4100 can accommodate it seamlessly.

Additionally, the DF4100 includes a GPU support bracket, preventing sagging and potential deformation for longer and heavier GPUs.

Before buying a new GPU or case, always check the GPU length specifications to avoid installation issues. With the DF4100 E-ATX case, you get a future-proof solution for any high-end graphics card, ensuring optimal compatibility and durability.





Why GPU Length Matters

As GPU performance increases, cooling modules are getting larger, making case compatibility an essential factor when upgrading or building a PC. To help DIY builders avoid size constraints, we’ve compiled a comprehensive list of maximum GPU lengths for NVIDIA and AMD graphics cards.







NVIDIA’s Longest Graphics Cards

From the RTX 30 to RTX 40 series, here are the longest GPUs in each tier, ensuring you choose a case that fits your graphics card.



NVIDIA RTX 40 Series





RTX 4090 | Gigabyte AORUS RTX 4090 MASTER – 359mm



RTX 4080 | ASUS ROG Strix RTX 4080 – 358mm



RTX 4070 Ti | ZOTAC RTX 4070 Ti AMP Extreme – 356mm



RTX 4070 | Gigabyte AORUS RTX 4070 MASTER – 342mm



RTX 4060 Ti 16GB | ASUS ROG Strix RTX 4060 Ti 16GB – 311mm



RTX 4060 Ti | ASUS ROG Strix RTX 4060 Ti – 311mm



NVIDIA RTX 30 Series





RTX 3090 | MSI RTX 3090 SUPRIM X 24G – 336mm



RTX 3080 | MSI RTX 3080 GAMING X TRIO – 323mm



RTX 3070 Ti | Gigabyte AORUS RTX 3070 Ti MASTER – 324mm



RTX 3070 | ASUS ROG Strix RTX 3070 – 318mm



RTX 3060 | MSI RTX 3060 GAMING X TRIO – 323mm



RTX 3050 | Gigabyte RTX 3050 WINDFORCE – 191mm







AMD Radeon’s Longest Graphics Cards

Here are the longest AMD Radeon RX 7000 series GPUs to help you pick the right case for your build.



AMD Radeon RX 7000 Series





RX 7900 XTX | ASRock RX 7900 XTX Taichi White – 344mm



RX 7900 XT | ASRock RX 7900 XT Taichi – 344mm



RX 7700 XT | ASRock RX 7700 XT Phantom Gaming – 328mm



RX 7600 XT | ASUS TUF Gaming RX 7600 OC – 320mm



| The Best Case for Full GPU Compatibility – DF4100 E-ATX Case |

From the NVIDIA RTX 40 & 30 series to the AMD Radeon 7000 series, the longest flagship GPUs range from 350mm to 360mm. This means a case must support at least 360mm GPU length for full compatibility.



The darkFlash DF4100 E-ATX case is designed for high-end GPUs, supporting up to 435mm of GPU clearance. Whether you have a compact dual-fan GPU or a massive triple-fan flagship model, the DF4100 can accommodate it seamlessly.



Additionally, the DF4100 includes a GPU support bracket, preventing sagging and potential deformation for longer and heavier GPUs.





Before buying a new GPU or case, always check the GPU length specifications to avoid installation issues. With the DF4100 E-ATX case, you get a future-proof solution for any high-end graphics card, ensuring optimal compatibility and durability.

Everything You Need to Know About GPU Lengths!
This guide provides a detailed breakdown of GPU dimensions across different brands and models, ensuring you never run into size compatibility issues when picking a PC case.

Choosing the Right PC Case: A Comprehensive Guide to GPU Length Compatibility

With the RTX 50 Series Launch, Many Gamers Are Ready to Upgrade!

With the new RTX 50 series graphics cards about to hit the market, many gamers are eager to get their hands on one. However, for the average DIY PC builder, the most important thing is choosing a graphics card that fits their needs and ensures a great experience.

So, how do you choose the right GPU for your setup? Let’s break it down.

| The Three Rules for Choosing a Graphics Card |

Determine if your PC will primarily be used for gaming, content creation, or general office work.

If you need a gaming or productivity-focused GPU, a mid-range card like the RTX 4060 or RTX 4060 Ti should be sufficient.

If your needs are minimal, such as for office work, you may not even need a dedicated GPU.

The graphics card is one of the most important components for smooth visuals and gameplay. If your budget is limited, it's recommended to allocate 30% to 50% of your total PC budget for the GPU.

3. Determine Your Graphics Quality Requirements

Higher graphics settings require more VRAM.

| How to Read Graphics Card Model Numbers |

Graphics card model numbers indicate their generation and series.

The higher the number after the series, the better the performance.

GPUs with Ti or S in their names are typically more powerful than their base versions.

By considering your needs, budget, and desired performance, you can choose the perfect graphics card that balances cost and performance while ensuring an optimal gaming or working experience!





With the RTX 50 Series Launch, Many Gamers Are Ready to Upgrade!

With the new RTX 50 series graphics cards about to hit the market, many gamers are eager to get their hands on one. However, for the average DIY PC builder, the most important thing is choosing a graphics card that fits their needs and ensures a great experience.



So, how do you choose the right GPU for your setup? Let’s break it down.



| The Three Rules for Choosing a Graphics Card |

1. Identify Your Usage Needs

Determine if your PC will primarily be used for gaming, content creation, or general office work.

If you need a gaming or productivity-focused GPU, a mid-range card like the RTX 4060 or RTX 4060 Ti should be sufficient.

If your needs are minimal, such as for office work, you may not even need a dedicated GPU.







2. Set Your Budget

The graphics card is one of the most important components for smooth visuals and gameplay. If your budget is limited, it's recommended to allocate 30% to 50% of your total PC budget for the GPU.







3. Determine Your Graphics Quality Requirements

Higher graphics settings require more VRAM.





For 1080p gaming, an 8GB VRAM graphics card is sufficient.



For 4K gaming, you’ll need at least 12GB of VRAM to ensure a smooth and immersive experience.



| How to Read Graphics Card Model Numbers |

1. Understanding GPU Generations

Graphics card model numbers indicate their generation and series.





NVIDIA GPUs:

RTX = Supports Ray Tracing technology.

The first number (e.g., 50 in RTX 50 series) indicates the generation.

Current generation: RTX 50 series.



AMD GPUs:

RX = AMD's graphics card lineup.

The first number (e.g., 70 in RX 7000 series) follows a similar naming convention to NVIDIA.

Current generation: RX 7000 series.



2. Understanding Performance Tiers

The higher the number after the series, the better the performance.





NVIDIA Performance Ranking:

RTX 5090 > RTX 5080 > RTX 5070



AMD Performance Ranking:

RX 7900 > RX 7800 > RX 7600



3. Understanding Model Suffixes

GPUs with Ti or S in their names are typically more powerful than their base versions.





Example NVIDIA Performance Ranking:

4070 Ti > 4070 S > 4070







By considering your needs, budget, and desired performance, you can choose the perfect graphics card that balances cost and performance while ensuring an optimal gaming or working experience!

Before buying a graphics card, consider these three key factors: usage needs, budget, and desired graphics quality.

A Complete Guide to Choosing the Right Graphics Card

GeForce RTX 5090, RTX 5080, RTX 5070 Ti, and RTX 5070 Are Coming Soon!

With the GeForce RTX 5090, RTX 5080, RTX 5070 Ti, and RTX 5070 graphics cards set to launch between late January and February, upgrading your existing GPU or building a brand-new PC requires careful planning. Here are the key factors to consider before making your purchase.

The RTX 50 series graphics cards come with higher power consumption, so it's crucial to ensure your PSU (Power Supply Unit) has enough wattage to support them. It’s also recommended to allocate an extra 100W to 200W of power to prevent long-term PSU overload, which can reduce its lifespan.

High-end GPUs tend to be larger in size due to increased heat output. If you're considering an RTX 5090 or RTX 5080, make sure your case supports at least 40cm of GPU clearance to avoid installation issues.

For RTX 5070 Ti and RTX 5070, it's recommended to have at least 30cm of clearance in your case.

｜Does Your Motherboard Support PCIe 5.0?｜

The RTX 50 series fully adopts PCIe 5.0, so ensure that your motherboard has a PCIe 5.0 slot to maximize performance. Using an older PCIe 4.0 or 3.0 slot could limit the potential of these next-gen GPUs.

The RTX 50 series graphics cards feature the latest HDMI 2.1 and DisplayPort 2.1 interfaces, capable of supporting:

If your current monitor only supports HDMI 2.0 or DisplayPort 1.4, you won’t be able to fully experience high-resolution and high-frame-rate gaming. Consider upgrading your display to take full advantage of these cutting-edge GPUs.

｜Founders Edition vs. Aftermarket GPUs: Which One to Choose?｜

Founders Edition (FE) GPUs are reference models directly produced by NVIDIA, often featuring simpler designs, basic cooling solutions, and no overclocking capabilities. However, they usually come at a lower price point.

Aftermarket GPUs, produced by partners like ASUS, MSI, and GIGABYTE, offer enhanced cooling, overclocking capabilities, and unique designs. These models generally perform better but come at a higher cost.

Founders Edition GPU (RTX 4080S example) 

By considering these factors, you can choose the perfect RTX 50 series graphics card to match your needs and enhance your gaming and computing experience!





GeForce RTX 5090, RTX 5080, RTX 5070 Ti, and RTX 5070 Are Coming Soon!

With the GeForce RTX 5090, RTX 5080, RTX 5070 Ti, and RTX 5070 graphics cards set to launch between late January and February, upgrading your existing GPU or building a brand-new PC requires careful planning. Here are the key factors to consider before making your purchase.



｜Is Your Power Supply Sufficient?｜

The RTX 50 series graphics cards come with higher power consumption, so it's crucial to ensure your PSU (Power Supply Unit) has enough wattage to support them. It’s also recommended to allocate an extra 100W to 200W of power to prevent long-term PSU overload, which can reduce its lifespan.



Official Power Supply Recommendations:





GeForce RTX 5090 – 1000W



GeForce RTX 5080 – 850W



GeForce RTX 5070 Ti – 750W



GeForce RTX 5070 – 650W



｜Is Your PC Case Compatible?｜

High-end GPUs tend to be larger in size due to increased heat output. If you're considering an RTX 5090 or RTX 5080, make sure your case supports at least 40cm of GPU clearance to avoid installation issues.



For RTX 5070 Ti and RTX 5070, it's recommended to have at least 30cm of clearance in your case.







｜Does Your Motherboard Support PCIe 5.0?｜

The RTX 50 series fully adopts PCIe 5.0, so ensure that your motherboard has a PCIe 5.0 slot to maximize performance. Using an older PCIe 4.0 or 3.0 slot could limit the potential of these next-gen GPUs.





｜Do You Need a Monitor Upgrade?｜

The RTX 50 series graphics cards feature the latest HDMI 2.1 and DisplayPort 2.1 interfaces, capable of supporting:





4K at 120fps



8K at 60fps

If your current monitor only supports HDMI 2.0 or DisplayPort 1.4, you won’t be able to fully experience high-resolution and high-frame-rate gaming. Consider upgrading your display to take full advantage of these cutting-edge GPUs.







｜Founders Edition vs. Aftermarket GPUs: Which One to Choose?｜

Founders Edition (FE) GPUs are reference models directly produced by NVIDIA, often featuring simpler designs, basic cooling solutions, and no overclocking capabilities. However, they usually come at a lower price point.



Aftermarket GPUs, produced by partners like ASUS, MSI, and GIGABYTE, offer enhanced cooling, overclocking capabilities, and unique designs. These models generally perform better but come at a higher cost.





↑Aftermarket GPU (ASUS TUF example) 





↑Founders Edition GPU (RTX 4080S example) 



By considering these factors, you can choose the perfect RTX 50 series graphics card to match your needs and enhance your gaming and computing experience!

When purchasing an RTX 50 series graphics card, be sure to check power supply requirements, case compatibility, motherboard PCIe slots, and monitor specifications.

Things to Consider Before Buying an RTX 50 Series Graphics Card

As one of the most essential components in a PC, the power supply unit (PSU) is responsible for delivering stable power to all other hardware. Choosing the wrong PSU can negatively impact your overall computing experience and even damage other components. Here’s a comprehensive guide to help you select the right power supply for your needs.

Power supplies are commonly available in three main form factors: ATX, SFX, and SFX-L.

The two most common power efficiency certifications are 80 PLUS and Cybenetics.

The 80 PLUS certification is the most widely recognized efficiency standard for PSUs. It ensures that a PSU operates at at least 80% efficiency under 20%, 50%, and 100% loads. The certification has multiple levels:

The Cybenetics certification is a newer and more precise PSU testing standard. It provides more detailed efficiency data than 80 PLUS and also includes a noise certification level, offering a more comprehensive PSU evaluation.

Complete Guide to Cybenetics PSU Certification.

Some PSUs are now Cybenetics-certified (Image: 

Choosing the right PSU wattage is essential. If the wattage is too low, your system may become unstable or shut down unexpectedly. You can estimate your needs using the 

OuterVision recommends a 660W PSU.To be safe, we suggest adding an extra 100–200W, making an 850W PSU a better choice.

By following these guidelines, you can find the ideal PSU for your system, ensuring both stability and efficiency.





As one of the most essential components in a PC, the power supply unit (PSU) is responsible for delivering stable power to all other hardware. Choosing the wrong PSU can negatively impact your overall computing experience and even damage other components. Here’s a comprehensive guide to help you select the right power supply for your needs.



| Power Supply Form Factors |

Power supplies are commonly available in three main form factors: ATX, SFX, and SFX-L.



ATX Standard Power Supply





Dimensions: 150mm (W) × 86mm (H) × 140–200mm (D)



Compatible Cases: E-ATX / ATX / M-ATX



Features: The most widely used PSU standard, compatible with most mainstream PC cases.





SFX Small Form Factor Power Supply





Dimensions: 125mm (W) × 63.5mm (H) × 100mm (D)



Compatible Cases: Small M-ATX / ITX



Features: Designed mainly for ITX cases, smaller in size but can be installed in ATX cases using an SFX to ATX adapter.



SFX-L Small Form Factor Power Supply





Dimensions: 125mm (W) × 63.5mm (H) × 130mm (D)



Compatible Cases: Small M-ATX / ITX



Features: Compared to SFX, the depth is increased by 30mm, allowing for better cooling inside the PSU.



| Power Efficiency Certifications |

The two most common power efficiency certifications are 80 PLUS and Cybenetics.



80 PLUS Certification

The 80 PLUS certification is the most widely recognized efficiency standard for PSUs. It ensures that a PSU operates at at least 80% efficiency under 20%, 50%, and 100% loads. The certification has multiple levels:





Standard (White), Bronze, Silver, Gold, Platinum, and Titanium



Higher certification levels indicate better power efficiency, reducing energy waste and heat generation.



Cybenetics Certification

The Cybenetics certification is a newer and more precise PSU testing standard. It provides more detailed efficiency data than 80 PLUS and also includes a noise certification level, offering a more comprehensive PSU evaluation.



For a detailed breakdown, refer to: Complete Guide to Cybenetics PSU Certification.





↑Some PSUs are now Cybenetics-certified (Image: PC Gamer)



| Power Wattage Selection |

Choosing the right PSU wattage is essential. If the wattage is too low, your system may become unstable or shut down unexpectedly. You can estimate your needs using the OuterVision PSU calculator.



Example Build:





CPU: Intel Core i7-13700K



RAM: 16GB DDR4 × 2



GPU: Nvidia GeForce RTX 4070 Ti



Storage: M.2 SSD × 2



Usage:

Daily operation: 6 hours

High-load usage: 2 hours



OuterVision recommends a 660W PSU.To be safe, we suggest adding an extra 100–200W, making an 850W PSU a better choice.





Recommended PSU Wattage Based on GPU





Using integrated graphics or low-end GPU: 400–500W PSU



Mainstream gaming GPUs (e.g., RTX 4060, RTX 3060): 600–850W PSU (Bronze or Gold rated)



High-end flagship GPUs (e.g., RTX 5090, RTX 5080): 850W+ PSU (Gold or higher recommended)







By following these guidelines, you can find the ideal PSU for your system, ensuring both stability and efficiency.

A stable power supply is crucial for a smoothly running PC. In addition to ensuring compatibility with your case size, you should also pay close attention to certifications and power wattage.

How to Choose the Right Power Supply for Your PC

As an enthusiast of games and computer DIY in this age, we, darkFlash, feel proud and grateful for keep thinking how to develop impressive and extraordinary products with high-end facilities by assembling and using the PC cases, CPU coolers, case fans, and even gaming chairs and tables in person.

Our goal is to create products that could extremely exert its effect by every user.