Understanding PC Components
Before choosing parts, you need to understand what each component does and how they work together. A gaming PC is only as strong as its weakest link — a powerful GPU paired with a weak CPU will bottleneck your performance just as badly as the reverse.
CPU (Processor)
The CPU handles game logic, physics, AI, and operating system tasks. For gaming, you need a CPU with strong single-core performance (most games rely on a few fast cores rather than many slow ones) and at least 6 cores. In 2026, AMD Ryzen 7/9 9000 series and Intel Core Ultra 200 series lead the gaming CPU market. AMD generally offers better value, while Intel has a slight edge in some single-threaded workloads.
GPU (Graphics Card)
The GPU renders every frame you see. It is the single most important component for gaming performance and typically the most expensive part of your build. The GPU determines what resolution and frame rate you can play at. In 2026, NVIDIA GeForce RTX 50 series and AMD Radeon RX 9000 series are the current generation. NVIDIA leads in ray tracing and DLSS upscaling; AMD offers competitive rasterisation performance at lower prices.
RAM (Memory)
RAM provides fast temporary storage for data the CPU and GPU need right now. For gaming in 2026, 32GB DDR5 is the sweet spot. 16GB is the bare minimum but increasingly insufficient for modern titles that run alongside Discord, a web browser, and background applications. Speed matters too — DDR5-6000 with tight timings offers the best price-to-performance for AMD systems.
Storage
An NVMe SSD is non-negotiable in 2026. The difference between loading a game from an SSD (2-10 seconds) versus an HDD (30-90 seconds) is transformative. A 1TB NVMe SSD is the minimum recommended — modern games regularly exceed 100GB each. Consider a 2TB drive or a 1TB NVMe boot drive plus a 2TB SATA SSD for game storage.
PSU (Power Supply)
The PSU converts wall power to the voltages your components need. Never cheap out here — a failing PSU can destroy every other component. Buy from reputable brands (Corsair, Seasonic, EVGA, be quiet!) with 80+ Gold or higher efficiency rating. Modern GPUs have high transient power spikes, so buy more wattage than you think you need (750W minimum for mid-range builds, 850-1000W for high-end).
Case and Cooling
Your case needs good airflow to keep components cool. Look for mesh front panels, space for at least 3 intake fans and 2 exhaust fans, and enough GPU clearance for modern (very large) graphics cards. For CPU cooling, a tower air cooler (Thermalright Peerless Assassin, Noctua NH-D15) handles most CPUs effectively. AIO liquid coolers (240mm or 360mm) offer better cooling for overclocked or high-TDP processors and look cleaner.
Budget Build (~£600)
This build targets 1080p gaming at 60+ fps in modern titles on medium-high settings. It is perfect for competitive esports games (Fortnite, Valorant, CS2) where it will push well over 100fps, and handles AAA titles at respectable frame rates. Excellent for a first gaming PC.
| Component | Part | Price |
|---|---|---|
| CPU | AMD Ryzen 5 7500F | £130 |
| GPU | AMD Radeon RX 7600 8GB | £230 |
| Motherboard | MSI PRO B650M-B (Micro-ATX) | £85 |
| RAM | 16GB DDR5-5600 (2x8GB) | £40 |
| Storage | 1TB NVMe SSD (WD SN580) | £55 |
| PSU | Corsair CV550 550W 80+ Bronze | £40 |
| Case | Tecware Forge M2 (Mesh) | £35 |
| Total | ~£615 |
Budget Build Notes
The Ryzen 5 7500F comes with a stock cooler that is adequate for this CPU. 16GB RAM is tight but sufficient if you close background applications while gaming. The RX 7600 is the best value GPU for 1080p in 2026 — it trades blows with the RTX 4060 at a lower price. Upgrade path: add another 16GB RAM and swap the GPU to an RX 7700 XT or RTX 4070 later.
Mid-Range Build (~£1,200)
This build targets 1440p gaming at 60-100+ fps on high settings with ray tracing in supported titles. It handles everything comfortably and is the sweet spot for most gamers who want excellent visuals without the diminishing returns of top-tier hardware.
| Component | Part | Price |
|---|---|---|
| CPU | AMD Ryzen 7 9700X | £270 |
| GPU | NVIDIA GeForce RTX 5070 12GB | £450 |
| Motherboard | MSI MAG B850 TOMAHAWK WIFI (ATX) | £160 |
| RAM | 32GB DDR5-6000 CL30 (2x16GB) | £80 |
| Storage | 2TB NVMe SSD (Samsung 990 EVO) | £100 |
| PSU | Corsair RM750e 750W 80+ Gold | £80 |
| Case | Fractal Design Pop Air (Mesh) | £70 |
| CPU Cooler | Thermalright Peerless Assassin 120 | £30 |
| Total | ~£1,240 |
This build represents the best value proposition in gaming PCs. The RTX 5070 with DLSS 4 frame generation delivers near-RTX 4080 performance at a fraction of the cost. The Ryzen 7 9700X is an 8-core processor with excellent single-thread performance and low power consumption — it runs cool with an affordable air cooler. 32GB DDR5-6000 is the sweet spot for AM5 systems, and the 2TB SSD provides ample storage for a large game library.
Beast Build (~£2,500)
This build targets 4K gaming at 60-120+ fps with ray tracing, or 1440p at 200+ fps for competitive play on a high-refresh monitor. This is a no-compromise system that will handle anything you throw at it for years to come.
| Component | Part | Price |
|---|---|---|
| CPU | AMD Ryzen 9 9900X | £380 |
| GPU | NVIDIA GeForce RTX 5080 16GB | £900 |
| Motherboard | ASUS ROG STRIX X870E-E GAMING WIFI (ATX) | £300 |
| RAM | 32GB DDR5-6400 CL28 (2x16GB) | £110 |
| Storage | 2TB NVMe Gen5 SSD (Samsung 990 Pro) | £140 |
| PSU | Corsair RM1000e 1000W 80+ Gold | £130 |
| Case | Lian Li Lancool III (Mesh) | £110 |
| CPU Cooler | Arctic Liquid Freezer III 360 AIO | £85 |
| Case Fans | 3x Arctic P12 PWM (pack) | £18 |
| Total | ~£2,173 |
This leaves roughly £300 in the budget for peripherals (monitor, keyboard, mouse) or upgrades like a second storage drive. The RTX 5080 is a powerhouse that handles 4K ray-traced gaming with DLSS 4 smoothing everything out. The Ryzen 9 9900X with 12 cores ensures zero CPU bottleneck in any game and handles streaming via software encoding without breaking a sweat. The 360mm AIO keeps thermals in check even under sustained load.
Step-by-Step Assembly Guide
Building a PC is far less intimidating than it looks. Modern components are designed to go together one way — if something does not fit, you are doing it wrong (never force a connector). Here is the assembly order we recommend.
Before You Start
Clear a large, clean workspace (a dining table works perfectly). Gather a Phillips-head screwdriver (#2 size), zip ties for cable management, and your motherboard manual. Ground yourself by touching the metal case chassis periodically to discharge static. Do not build on carpet if you can avoid it.
Assembly Order
- Install CPU into motherboard: Open the CPU socket lever, align the CPU using the golden triangle marker, gently place it in (zero force required), and close the lever. This is the most nerve-wracking step but also the simplest if you align correctly.
- Install RAM: Open the clips on your motherboard's RAM slots. For 2 sticks on a 4-slot board, use slots A2 and B2 (second and fourth from the CPU, check your manual). Press each stick firmly until the clips click into place.
- Install M.2 SSD: Unscrew the M.2 heatsink on your motherboard, slide the SSD into the slot at an angle, push it flat, and secure with the screw. Replace the heatsink.
- Install CPU cooler: Apply a pea-sized dot of thermal paste to the centre of the CPU (some coolers come pre-applied). Mount the cooler following its specific instructions — air coolers and AIOs each have different mounting hardware. Connect the fan cable to the CPU_FAN header.
- Install motherboard into case: Install the I/O shield (if separate from the board), align the board with the standoffs in the case, and secure with screws. Do not overtighten.
- Install PSU: Mount the PSU in the bottom compartment (fan facing down for intake from below the case). Route the 24-pin ATX power cable, 8-pin CPU power cable, and PCIe power cables through the cable management holes behind the motherboard tray.
- Install GPU: Remove the appropriate PCIe slot covers from the case back. Insert the GPU into the top PCIe x16 slot firmly until it clicks. Secure it with screws. Connect PCIe power cables from the PSU.
- Connect front panel cables: Connect the case's power button, reset button, USB, and audio cables to the motherboard headers. Check your motherboard manual for exact pin layouts. This is the fiddliest part of the build.
- Install case fans: Mount intake fans at the front and exhaust fans at the top/rear. Connect to SYS_FAN headers on the motherboard or to a fan hub.
- Cable management: Route all cables behind the motherboard tray. Use zip ties to bundle cables together. Good cable management improves airflow and makes future upgrades easier.
BIOS Setup
Power on the system and immediately press Delete or F2 (varies by motherboard) to enter BIOS. Here are the essential settings to configure.
- Enable XMP/EXPO: This sets your RAM to its rated speed. Without enabling XMP (Intel) or EXPO (AMD), your DDR5-6000 RAM will run at a default 4800 MHz — a significant performance loss.
- Set boot order: Ensure your NVMe SSD or USB installer is first in the boot priority list.
- Enable Resizable BAR / Smart Access Memory: This allows the CPU to access the full GPU VRAM, improving performance in many games by 5-10%.
- Update BIOS: Download the latest BIOS version from your motherboard manufacturer's website to a USB drive and flash it. New BIOS versions often include performance improvements, RAM compatibility fixes, and security patches.
Driver Installation
After installing Windows (create a USB installer using Microsoft's Media Creation Tool), install drivers in this order:
- Chipset drivers: Download from AMD or Intel's website. These enable all motherboard features.
- GPU drivers: Download from NVIDIA (GeForce Experience / NVIDIA App) or AMD (Adrenalin Software). Always do a clean install for the best stability.
- Windows Update: Run Windows Update to get remaining drivers (network, audio, etc.) and security patches.
- Motherboard utilities: Install LAN, Wi-Fi, Bluetooth, and audio drivers from the motherboard manufacturer if Windows Update did not cover them.
Benchmarking and Stress Testing
After assembly, verify your system is working correctly and performing as expected.
Stress tests: Run Cinebench R24 (10-minute multi-core test) to verify CPU stability and thermals. CPU temperature should stay below 85-90 degrees Celsius. Run FurMark or 3DMark Time Spy Stress Test for 15-20 minutes to verify GPU stability. If either test crashes or produces visual artefacts, check your power connections and cooling.
Game benchmarks: Run built-in benchmarks in games like Cyberpunk 2077, Shadow of the Tomb Raider, or Forza Horizon 5 to establish baseline performance. Compare your results to online reviews of similar hardware to confirm your system is performing correctly. If your results are significantly lower, check that XMP/EXPO is enabled and drivers are up to date.
Upgrade Paths
A well-planned build allows for cost-effective upgrades over time. Here are the most impactful upgrades for each build tier.
- Budget build: Add 16GB more RAM (to 32GB), then upgrade the GPU to an RTX 5060 Ti or RX 8600 XT when available. The AM5 platform supports future Ryzen CPUs, so you can upgrade the processor years later without changing the motherboard.
- Mid-range build: Upgrade the GPU to an RTX 5080 or next-gen equivalent in 2-3 years. Add a second 2TB SSD for more storage. The 9700X and 32GB RAM will remain sufficient for years.
- Beast build: This system needs minimal upgrades for 3-4 years. When the time comes, a GPU upgrade to the next generation will be the most impactful change. The Ryzen 9 9900X will not bottleneck any foreseeable GPU.
First Build Confidence
If this is your first PC build, do not be intimidated. The process takes 2-3 hours for a first-timer and the risk of breaking something is extremely low if you handle components gently and follow the steps above. Watch a video build guide alongside these instructions for visual reference. The moment your system posts (shows the BIOS screen) for the first time is one of the most satisfying experiences in gaming. You built that. Every frame it renders, you made possible.