Gaming PC 2025: Top Desktop Computers for Games and Applications Available Online Now
Gaming PCs – Our Computers for Gamers: Configure and Buy Ready-Built

The Best Gaming PCs: Complete Sets or Custom Builds – from Budget to Premium
We build Germany’s best gaming PCs – fully configured and assembled for you. But no PC is the same, because every gamer has different needs and games vary in system requirements.
That’s why we offer both ready-built PCs and PC configurators for gaming desktops. This way, you get the perfect gaming PC tailored to your individual requirements. In addition to the hardware, the case is freely selectable too, so your rig matches your gaming setup and looks exactly how you want it to.
What should you consider when configuring your gaming PC?
Since PC hardware evolves continuously, building a gaming rig involves lots of questions and some research. Modern games require different components than older titles or low-demand multiplayer games. This guide helps you choose the ideal gaming hardware and explains which aspects matter in our PC configurator.
Contents:
- Questions About Assembling a Gaming PC
- From Entry-Level to Enthusiast – What’s the Perfect Gaming PC?
- The Ideal Hardware for the Perfect Gaming Rig
- Hardware: Gaming Graphics Cards
- Hardware: CPU & Motherboard
- Hardware: RAM
- Hardware: SSDs & HDDs
- Hardware: Power Supply Unit (PSU)
- The Best PC Cases for Gaming
- Gaming PCs with RGB LED Lighting
- Buy a Gaming PC and Take Advantage of Bonus Offers!
- Accessories for the Perfect Gaming Rig
- The Right Monitor for Your Gaming PC
- Custom-Build vs. Ready-Made – Which to Choose?
How Do I Build a Gaming PC?

The most important question when building a gaming PC is its intended use, since different PC games have different system requirements. Games with complex 3D graphics require a powerful graphics card, while strategy and simulation games benefit more from strong CPU performance.
By focusing on your personal preferences, you can configure a gaming PC with optimal performance for your favourite games without exceeding your budget.
These Components Make Up Your Gaming PC
- The graphics card (GPU) renders the image on your gaming monitor.
- The processor (CPU) handles game calculations.
- The motherboard connects all components together.
- Memory (RAM) improves your gaming PC’s responsiveness.
- The hard drive (SSD or HDD) stores your games and affects loading times.
- The CPU cooler keeps your processor cool.
- The PSU supplies all components with the necessary power.
- The case houses and protects sensitive PC components.
How Much Does a Gaming PC Cost?
How much gaming PC can I get for my money? Your budget plays a big role in both performance and looks. You can buy a gaming PC from around €900, or invest thousands. The cost depends on which games you want to play, at what resolution and detail settings. If you want to run AAA games in 4K with max details, be prepared to invest more in high-end components. Developers optimise games for a wide range of systems, but the newest titles truly shine only on a high-end gaming PC.
Gaming PCs for eSports Titles and Multiplayer Games
Many popular eSports titles can run on affordable PCs. Games like Apex Legends, Fortnite and League of Legends are well optimised, offering competitive performance even on entry-level systems.
In such games, a high and stable frame rate is more important than visual detail for fair gameplay. However, for newer multiplayer titles like Dune: Awakening, Helldivers 2, or War Thunder, upgrading your hardware will significantly enhance your experience, even if entry-level systems can run them.

From Entry-Level to Enthusiast – What’s the Perfect Gaming PC?
Gaming hardware is often divided into four categories based on price and performance. This helps manufacturers position their products more clearly and allows users to find the right hardware for their needs. The four categories are:
- Entry-Level or Budget Segment
- Mid-Range Segment
- High-End Gaming PCs
- Enthusiast Builds – No Expense Spared
Entry-Level: Affordable Gaming PCs
Entry-level or budget gaming PCs are ideal for gamers who don’t spend too much time on their system or mainly play less demanding games in Full HD (1,920 x 1,080) at medium to high settings.
Many browser games, MMOs, and free-to-play titles run well on affordable entry-level gaming PCs. You’ll also be able to enjoy many popular eSports titles with these systems.
Mid-Range: Gaming PCs in the Mid-Price Segment
Mid-range systems offer excellent performance in WQHD resolution (2,560 x 1,440 pixels). Even at high detail settings, they deliver smooth framerates. Virtual Reality (VR) gaming is fully supported, and some games even run in 4K or UHD (3,840 x 2,160). Thanks to fast NVMe SSDs, load times are dramatically reduced in this segment.
High-End Gaming PCs: Premium Rigs for Gaming Dreams
Powerful high-end PCs feature top-tier graphics cards, fast processors, and speedy RAM. Fast NVMe 5.0 SSDs serve as ultra-fast storage. These systems easily handle VR gaming and allow ultra-smooth 4K gameplay at maximum detail. At lower resolutions like WQHD (1440p), modern high-end rigs can achieve exceptionally high FPS without compromising on graphics quality.
For enthusiasts, we go even further – with custom high-end gaming PCs equipped with bespoke water cooling loops. Built and overclocked by professionals like der8auer or 8Pack, these machines squeeze every bit of performance from the silicon. And of course, our King Mod Systems team also produces real eye-catchers that will impress even the most demanding enthusiasts.

The Ideal PC Hardware for the Perfect Gaming Rig
For a gaming-focused PC, the graphics card and processor are the most important hardware components, as they directly influence gaming performance. RAM speed and storage drive performance also impact overall smoothness. However, if your hardware meets the recommended specs, adding more RAM or upgrading to a faster SSD won't usually increase your FPS significantly.
Gaming Graphics Cards for Gaming PCs

The graphics card (GPU) is the single most important and often the most expensive component in a gaming PC. There are three main GPU chipmakers: AMD, Intel, and NVIDIA.
While these companies also produce their own cards, most are made by partner brands (AIBs). Intel has recently entered the dedicated GPU market with its Arc series. Here's a quick overview of the key differences between GPU makers:
The Benefits of AMD Radeon and NVIDIA GeForce Graphics Cards
AMD Radeon
- AMD FreeSync synchronises GPU and monitor
- AMD FSR boosts FPS through upscaling
- AMD Adrenalin software suite
NVIDIA GeForce
- NVIDIA G-SYNC synchronises GPU and monitor
- NVIDIA DLSS boosts FPS through upscaling
- NVIDIA App for game optimisation
The Best Graphics Cards for Your Gaming PC in 2025
Both brands offer a wide selection of GPUs. Currently, NVIDIA's RTX 50 series and AMD's Radeon RX 9000 series dominate the market. It’s usually best to go with the latest generation, but older models can still offer great value.
Once you've picked a GPU series (e.g. Radeon RX 9000 or GeForce RTX 50), you’ll need to choose a model (e.g. RX 9070 XT or RTX 5080). As a rule of thumb: higher numbers mean better performance.
Current Gaming Graphics Cards from AMD, Intel and NVIDIA at a Glance
We’ve sorted all AMD Radeon, NVIDIA GeForce and Intel Battlemage graphics cards we offer in our gaming PCs by performance. The most powerful (and expensive) models are listed first:
AMD Radeon RX 9000 Series
NVIDIA GeForce RTX 5000 Series
Intel Battlemage Series
After choosing your GPU series and model, you’ll need to pick a brand. AMD, Intel and NVIDIA all work with board partners who offer cards using the same chip but with their own custom coolers and features. Brands like ASUS, MSI, Gigabyte, and Sapphire often tweak clock speeds and offer unique designs.
PC Configuration: Avoiding Bottlenecks
Your GPU should match your CPU in performance. If the graphics card is significantly faster than the processor, you could encounter a “CPU bottleneck” – where the slower CPU limits the GPU’s performance. The reverse is also true: a “GPU bottleneck” happens when the graphics card slows down a fast CPU.
Processor & Motherboard

The processor (CPU) is the central processing unit of your computer. It handles all calculations, processes and data distribution. The motherboard is the base on which all components are mounted. The CPU and motherboard must be compatible, or they simply won’t work together. Compatibility is determined by the CPU socket on the motherboard, which must match the CPU you choose.
Example: CPU and Motherboard Compatibility
An AM5 motherboard is only compatible with AM5 CPUs from AMD, while an LGA 1851 CPU from Intel only works with an LGA 1851 motherboard. Also important is the chipset – for example, if you want to use all features of an unlocked Intel CPU (marked with a "K"), you'll need a Z- or X-series chipset motherboard. Don’t worry – our product pages clearly state which CPUs each board supports.
Quick & Easy Gaming PC Configuration
With our PC configurators, you're on the safe side. We've already checked component compatibility, so you don't need to worry about what works together when building your new gaming PC.
How Do I Know Which CPU I Need?
As with graphics cards, CPUs are typically grouped into four classes. A high-end CPU is the ideal match for a high-end graphics card and can even complement enthusiast-grade GPUs. Generally, the higher the number, the more powerful the CPU.
Understanding CPU Performance Based on Names
AMD CPUs
How Many Cores Should My Desktop CPU Have?
Before purchasing, consider how many CPU cores you actually need. This depends on the types of PC games you intend to play. For fast-paced first-person shooters, clock speed matters more than core count, as these games tend to use fewer cores efficiently.
In contrast, strategy and simulation games like Anno, Civilization, The Settlers, or Surviving Mars rely heavily on CPU power and scale well with more cores. These titles benefit most from high-end CPUs.
Using Your Gaming PC for Video Editing, Image Processing and Streaming
If you plan to use your PC for livestreaming, video editing or CAD in addition to gaming, then investing in a higher-end processor, a powerful GPU, more RAM, and larger, faster SSDs or HDDs is worthwhile.
The CPU Cooler

The CPU cooler is responsible for regulating your processor’s temperature. Make sure your chosen cooler is compatible with your CPU socket and motherboard. The fan should also be large and powerful enough to dissipate the heat generated by your processor. For instance, a CPU from the Ryzen 9000 series with a Thermal Design Power (TDP) of 125 watts requires a cooler that can handle at least that amount.
Quiet Gaming PCs Thanks to Efficient Cooling
If you want your gaming PC to run quietly, opt for a larger CPU cooler with a broad heatsink. This allows the fans to spin slower while still effectively cooling the processor.
What Are the Benefits of Water Cooling?
With a water cooling system, heat is transferred from the CPU block to one or more radiators via coolant. These radiators then release the heat with the help of fans.
Water Cooling: Custom Loops vs. All-in-One (AiO) Solutions
There are two main types of water cooling: pre-assembled all-in-one (AiO) coolers and custom loops. AiO coolers consist of a closed loop with pump and radiator – the pump is mounted on the CPU, while the radiator is installed in one of the case’s fan slots. A custom water cooling setup, on the other hand, is built from individual components.
Our ready-to-go gaming PCs with AiO water cooling are perfectly tuned for each configuration and ensure optimal cooling. If you build a custom water-cooled PC, our King Mod Systems experts will design and assemble the ideal loop to your specifications – with a 36-month warranty.
RAM: How Much Memory Does a Gaming PC Need?

RAM (Random Access Memory), also known as system memory, is a key component in every computer. It temporarily stores data that the CPU needs to access quickly during operations, and caches frequently used files for faster loading. Because RAM is extremely fast and highly responsive, it prevents your gaming PC’s processor from being unnecessarily slowed down.
RAM for Budget Gaming PCs
Today, even affordable gaming PCs usually come with 16 GB of memory. Dual-channel DDR4 RAM with 3,200 MHz is the standard. Many motherboards now come in two variants – one supporting the less expensive DDR4 and one supporting the newer, slightly more expensive DDR5 standard.
How Much RAM for a Mid-Range Gaming PC?
For a mid-range gaming rig, 32 GB of RAM is a solid recommendation, although 64 GB can also make sense. In this segment, RAM with clock speeds up to 3,600 MHz and CL18 latency is a worthwhile investment. Besides frequency, latency is also important – lower latency means faster access times. Games benefit more from faster RAM than from higher capacity alone.
RAM for High-End Gaming PCs
In the high-end space, most systems now use ultra-fast DDR5 RAM. This reduces stuttering caused by 1% low FPS drops. DDR5 memory kits typically come in 32 GB or 64 GB capacities in this category.
DDR5 RAM: The Newest and Fastest Memory for Gaming PCs
Even faster – and pricier – is DDR5 RAM. Supported by Intel CPUs from the 12th generation (Alder Lake) and AMD Ryzen 7000 series onwards, DDR5 memory is evolving rapidly in terms of frequency and latency. As it becomes faster and more affordable, we offer gaming PCs that support both DDR4 and DDR5 configurations. High-performance DDR5 RAM may reach 6,000 MHz with CL30 latency or even 7,200 MHz with CL34.
In the enthusiast segment, systems often feature 96 or even 128 GB RAM, running in dual- or quad-channel mode. These platforms benefit not only from fast RAM, but also from wider memory bandwidth. High-end desktop platforms (HEDT) often support quad- or even octa-channel setups for maximum transfer rates.
RAM: How Much Memory Does a Gaming PC Need?

RAM (Random Access Memory), also known as system memory, is a key component in every computer. It temporarily stores data that the CPU needs to access quickly during operations, and caches frequently used files for faster loading. Because RAM is extremely fast and highly responsive, it prevents your gaming PC’s processor from being unnecessarily slowed down.
RAM for Budget Gaming PCs
Today, even affordable gaming PCs usually come with 16 GB of memory. Dual-channel DDR4 RAM with 3,200 MHz is the standard. Many motherboards now come in two variants – one supporting the less expensive DDR4 and one supporting the newer, slightly more expensive DDR5 standard.
How Much RAM for a Mid-Range Gaming PC?
For a mid-range gaming rig, 32 GB of RAM is a solid recommendation, although 64 GB can also make sense. In this segment, RAM with clock speeds up to 3,600 MHz and CL18 latency is a worthwhile investment. Besides frequency, latency is also important – lower latency means faster access times. Games benefit more from faster RAM than from higher capacity alone.
RAM for High-End Gaming PCs
In the high-end space, most systems now use ultra-fast DDR5 RAM. This reduces stuttering caused by 1% low FPS drops. DDR5 memory kits typically come in 32 GB or 64 GB capacities in this category.
DDR5 RAM: The Newest and Fastest Memory for Gaming PCs
Even faster – and pricier – is DDR5 RAM. Supported by Intel CPUs from the 12th generation (Alder Lake) and AMD Ryzen 7000 series onwards, DDR5 memory is evolving rapidly in terms of frequency and latency. As it becomes faster and more affordable, we offer gaming PCs that support both DDR4 and DDR5 configurations. High-performance DDR5 RAM may reach 6,000 MHz with CL30 latency or even 7,200 MHz with CL34.
In the enthusiast segment, systems often feature 96 or even 128 GB RAM, running in dual- or quad-channel mode. These platforms benefit not only from fast RAM, but also from wider memory bandwidth. High-end desktop platforms (HEDT) often support quad- or even octa-channel setups for maximum transfer rates.
Storage: SSDs and HDDs

Storage devices such as hard drives (HDDs) and solid-state drives (SSDs) store your operating system, applications, and game library using high-speed flash memory.
Both HDDs and SSDs offer vast storage capacity. While HDDs are generally more affordable per GB, they are significantly slower and produce audible noise. They are ideal for archiving large amounts of data that don't need to be accessed regularly.
Unlike HDDs, SSDs contain no moving parts, making them virtually silent. Traditional 2.5-inch SSDs are the same size as notebook hard drives and connect via SATA III. These can be mounted behind the motherboard tray in compact cases. Even more space-efficient are M.2 SSDs, which are installed directly onto the motherboard.
NVMe SSDs offer the highest data transfer rates and use the PCI Express interface. PCIe 3.0 SSDs already achieve excellent speeds of around 3,500 MB/s or more. PCIe 4.0 SSDs double that rate, and PCIe 5.0 drives double it again.
Which SSD Should I Buy for a Gaming PC?
For gaming, an SSD primarily means much faster speed. Applications open in an instant, and games load in a fraction of the time compared to HDDs. Whether it's a 500 GB SSD for your OS or a 2 TB NVMe SSD for your full game library, the technology is evolving rapidly. Features like PCIe 5.0 and NVMe 2.0 are making SSDs faster and more affordable. HDDs still have their place, especially in NAS setups for long-term data storage.
If you need more space, our PC configurators let you expand your storage easily. While this won’t increase FPS, modern games with high-resolution texture packs can quickly fill up your gaming PC’s storage.
Is a PCIe 5.0 NVMe SSD Worth It for a Gaming PC?
This question is often debated. SSDs connected via PCIe 5.0 offer significantly higher transfer speeds than their predecessors. For gaming PCs in 2025, PCIe 4.0 NVMe SSDs still offer excellent value. That’s why we let you configure your gaming PC just the way you like it.
The PC Power Supply Unit (PSU)

The PSU (Power Supply Unit) in a gaming PC is responsible for supplying power to all internal components. The wattage rating indicates the total power output, while efficiency is usually shown by an 80 PLUS certification. PSUs can be non-modular, semi-modular or fully modular, meaning some or all cables can be detached – reducing cable clutter inside your case.
Although a PSU doesn’t directly influence performance, it’s not an area where you should cut corners. Quality branded PSUs tend to be more efficient and include better safety features. But what PSU do you need for your gaming build?
To determine the required PSU wattage for your gaming PC, it’s helpful to start with your graphics card, which usually consumes the most power. Product descriptions often include PSU recommendations, including headroom for the CPU, storage, and lighting. For example, a GeForce RTX 5070 typically requires at least a 650-watt PSU. From there, power demands increase rapidly – high-end cards like the RTX 5090 recommend a 1,000-watt PSU with up to 600 watts dedicated to the GPU.
PSUs come in various sizes. The three most common form factors for gaming PCs are:
- ATX PSUs – standard size for most gaming PCs
- SFX PSUs – compact form factor for smaller builds
- SFX-L PSUs – compact but more powerful than SFX
Lower Electricity Bills with Higher Efficiency
80 PLUS is a certification programme promoting efficient PSUs. To be certified, a PSU must achieve at least 80% efficiency at various load levels. The higher the rating, the more efficiently it converts power and the less energy it wastes.
Is an Expensive PSU Worth It for a Gaming PC?
You should never skimp on the PSU – but there’s also no point in choosing one that’s significantly overpowered, as it will operate in a less efficient load range. High-end PSUs offer more stable voltage across the 12V, 5V and 3.3V rails, are quieter, and tend to last longer. Manufacturers back this with extended warranties. All our gaming PCs come with certified PSUs optimised for the chosen hardware – so you can’t go wrong during configuration.
Quiet PSUs for a Silent Gaming Experience
All PSUs need cooling. Active cooling uses fans that spin continuously. Semi-passive designs only spin up the fan when needed based on temperature and load. Fully passive PSUs rely entirely on case airflow, so proper installation and airflow planning is essential. Many manufacturers now favour semi-passive cooling, where the fan only activates under load to maintain quiet operation during idle or light tasks.
The Best Cases for Gaming PCs
PC cases come in a wide variety of sizes and styles — from towering Big-Towers to ultra-compact Mini-ITX cases. But which case is right for your gaming PC? Choosing the right case depends on multiple factors. The following checklist can help you decide:

- What is the form factor of your motherboard?
- How do you want to cool your gaming PC?
- Where will the case be placed?
- What colour should the case be?
- Do you want tempered glass elements?
- Do you want RGB lighting in your case?
Big-Towers: The Largest PC Cases
Big-Towers are very large cases offering maximum space for hardware and cooling. They’re often chosen for enthusiast builds with custom water loops. Also referred to as Full-Towers, these cases are perfect for water-cooled gaming PCs, as they offer plenty of mounting space for components and radiators. However, they do take up a lot of room and tend to be quite heavy.
Midi-Towers: The Most Popular PC Cases
Midi-Towers are the most common type of case. They provide ample space for high-performance hardware and are available across all price ranges. From subtle steel towers to glass-panelled, RGB-lit showpieces – you’ll find a huge variety. If you're planning to install an AiO or custom water cooling system, check for radiator support when choosing a Midi-Tower. Our gaming PC configurators are optimised to recommend compatible cooling options for each case.
Micro-ATX Cases: Compact and Capable
Micro-ATX cases are smaller than Midi-Towers and designed for micro-ATX motherboards. Despite their size, they can still accommodate powerful GPUs and effective cooling. You may have to compromise slightly on expansion slots, though — these cases usually offer four, which is more than enough for most gaming PCs, as a graphics card is typically the only add-in card used.
Mini-ITX Cases: For Desk-Friendly Gaming Rigs
Mini-ITX cases now come in all shapes, sizes, and colours. Some are barely smaller than micro-ATX models, while others are no bigger than a gaming console. Thanks to clever engineering and a wide component selection, it’s now possible to build a high-end gaming PC with a custom water loop in a tiny case — even with today’s oversized graphics cards.
Gaming PCs with RGB LED Lighting
For many enthusiasts, a gaming PC is more than just a tool — it’s a statement piece. As gaming rigs become more personalised, RGB LED lighting has become increasingly popular. To properly showcase your components, lighting is key. But there are a few things to consider when diving into the world of RGB, which is why Caseking has created a dedicated RGB Guide for you.
We offer both custom-configured builds and ready-made gaming PCs, available with or without RGB lighting.
Buy a Gaming PC and Take Advantage of Bonus Promotions!
When you buy a qualifying gaming PC or selected individual components from Caseking, you may receive free extras. These usually come in the form of game keys for free or discounted titles, cashback promotions, discount vouchers, bundles with price advantages, store credit (e.g. for Steam), or free in-game content.
Our dedicated promotions page lists all currently active offers and eligible products. Voucher codes distributed directly by Caseking (e.g. for free games) are sent via email within 14 days of delivery, or included with your parcel. Products not listed on this page are not eligible for bonus content.
Accessories for Your Gaming PC Complete Set

A gaming PC setup is perfectly complemented by gaming peripherals such as a gaming mouse and a mechanical keyboard. These peripherals often feature durable switches and key mechanisms designed for longevity. Gaming mice are typically equipped with high-precision sensors with adjustable DPI settings.
Many peripherals include internal memory for storing custom profiles, and RGB lighting that can be adjusted either via software or directly on the device. This allows your accessories to match your PC’s RGB lighting for a fully synchronised look.
Gaming Headsets for Immersive Sound
Gaming headsets are also available with RGB lighting. The big advantage over speakers is the ability to pinpoint sounds more accurately in-game. Experienced players using 5.1 or even 7.1 surround headsets can identify the precise position of enemies in shooters, giving them a significant edge. Headsets also let you play late into the night without disturbing neighbours, while blocking out background noise.
Your Gaming Chair for Maximum Comfort
If you spend a lot of time at your PC, a comfortable chair is essential. Gaming chairs combine the ergonomics of office chairs with eye-catching designs. Our Gaming Chair Guide gives you all the information you need to choose the perfect model.
From the premium real leather of noblechairs to affordable models from Nitro Concepts, there’s a wide range of chairs to suit all body types and style preferences — ensuring you’ll find the perfect gaming throne.
The Best Monitor for Your Gaming PC

To fully enjoy the graphical power of your new gaming PC, you’ll need a matching gaming monitor. We offer screens for gamers in sizes from 22 to 55 inches. But screen size isn’t everything — several other factors are just as important.
Gaming Monitors for Radeon and GeForce Graphics Cards
Make sure your monitor works in harmony with your graphics card for the best results. Check whether the monitor supports NVIDIA G-SYNC or AMD FreeSync. These technologies match the monitor’s refresh rate to the GPU’s frame output to eliminate tearing and stutter. When you configure a gaming PC with us, we offer perfectly matched monitor options for your setup.
High-End: When Monitors and Graphics Cards Work as a Team
Besides size, the maximum resolution of your monitor is crucial. Want to enjoy your games in stunning 4K? Then pick a monitor that matches your high-end PC’s power. Also, pay attention to refresh rate: to display 144 FPS, you need a monitor with 144 Hz. To see 360 FPS, you’ll need a 360 Hz monitor. Otherwise, your GPU may render frames that your monitor can’t display.