Fix your target resolution and refresh rate first, then spend the largest share of your budget on the graphics card and build the rest around it. A balanced gaming PC pairs that card with a CPU that will not hold it back, at least 16 GB of RAM, an NVMe SSD and a quality power supply. Prices move constantly, so this guide gives you a priority order rather than a fixed shopping list.
Where should your budget go first?
For games, the graphics card does most of the work, so it deserves the biggest slice of money. The right card depends on the monitor you will use. A 1080p screen asks far less of a GPU than a 1440p or 4K one, and a high refresh rate screen asks more again. Decide the monitor before you decide the card, or you will either overspend or end up disappointed.
After the graphics card, a sensible order of priority looks like this:
- Graphics card. Matched to your monitor's resolution and refresh rate.
- CPU. Strong enough that the graphics card is the limit, not the processor. A weak CPU with an expensive GPU wastes the card.
- Power supply. A quality unit from a reputable maker, sized to the card. This protects every other part you bought.
- RAM. 16 GB in two matched modules is the sensible minimum for current games. Choose 32 GB if you stream, edit video or keep many programs open.
- Storage. An NVMe SSD of at least 1 TB, because modern games are large.
- Case and cooling. Good airflow matters more than looks, especially in Mumbai's heat.
Do not forget the extras that quietly add to the total: a Windows licence, a keyboard and mouse, a UPS or surge protector, and headphones. Leaving them out of the plan is how builds go over budget.
How do you choose a platform: AMD or Intel, DDR4 or DDR5?
Choose the platform by socket and memory type, because those two decide what you can upgrade later. AMD's AM4 boards use DDR4 only, while AM5 boards use DDR5 only. Intel has varied by generation: some boards of the LGA1700 era take DDR4 and others DDR5 (never both), and the newer platforms are DDR5 only. Check the board listing carefully.
DDR4 and DDR5 modules are physically different and are not interchangeable, so the memory you buy must match the motherboard. If you are comparing the two, our DDR4 vs DDR5 desktop RAM guide covers speed, price and compatibility in more depth.
Two practical points often missed. First, a newer processor in an older board may need a BIOS update before it will start. Some boards offer a BIOS flashback button that updates the firmware without a CPU installed, which is worth looking for. Second, you do not need the most expensive chipset. Pay for what you will use: enough M.2 slots, a solid power delivery design if your CPU is a high-end one, and the USB ports you need.
Which compatibility mistakes catch first-time builders?
Most failed builds come down to a short list of avoidable mismatches. Part lists look fine on paper, then the card does not fit the case or the cooler hits the RAM. Go through this table before you order, and again when parts arrive.
| Check | What to confirm |
|---|---|
| CPU and board | Same socket, and a BIOS version that supports your exact CPU |
| RAM | DDR4 or DDR5 to match the board; a two-module kit for dual channel |
| Graphics card size | Length and thickness fit inside the case, with room for cables |
| GPU power cable | PSU has the right 8-pin PCIe leads, or the 12-volt high-power connector some newer cards use |
| CPU cooler | Height fits the case width; clears tall RAM; includes the right mounting kit for your socket |
| Case airflow | Mesh front or good intake, plus at least one exhaust fan |
| M.2 slots | The slot you use does not disable a SATA port you need |
| Power supply | Meets the graphics card maker's recommended rating, with headroom |
One safety note for newer, high-power graphics cards. If yours uses the 12-volt high-power connector, push it in until it is fully seated and avoid bending the cable sharply right next to the plug. A partly inserted connector is a known cause of overheating at that plug.
How big a power supply does a gaming PC need?
Use the graphics card maker's recommended power supply rating as your baseline, then choose a quality unit at or just above it. Mid-range cards commonly land around 550 W to 650 W, and higher-end cards 750 W to 850 W or more. Quality matters as much as wattage, so favour recognised makers with solid protections over unbranded high-wattage units.
To give a sense of how costs step up, Xigox's indicative service list shows 650W PSU replacement from ₹3,000 to ₹5,000 and 850W-plus units from ₹5,000 to ₹8,000. Our full guide to choosing a power supply explains efficiency ratings, modular cables and connectors.
What does building in India add to the plan?
Building in India brings local factors worth planning for. Mains voltage swings and sudden cuts are common, so budget for a UPS or at least a good surge protector. Mumbai's humidity and heat push you towards a case with real airflow, dust filters and a cooler you can clean. Our guide to surge protection and UPS options helps with the first.
- Buy with a proper GST invoice. It is your proof of purchase for warranty claims on each part.
- Check the warranty is valid in India. Parts imported through unofficial channels may not be honoured by the brand's local service centre.
- Be careful with used graphics cards. A second-hand card may have run hard for years. If you buy one, test it under load before paying, and avoid sellers who will not allow that.
- Keep boxes and seals until the build works. Return windows are easier to use if the parts are in their original packaging.
How do you assemble it and avoid the settings everyone forgets?
Install the CPU, RAM and cooler on the motherboard before placing the board in the case. It is far easier to see what you are doing, and a bad seat is easier to correct. Then fit the board, power supply and graphics card, and connect every power cable firmly before the first start.
- Connect the monitor to the graphics card, not the motherboard's video ports. Plugging into the wrong output is the most common reason a new build shows no picture.
- Update the BIOS if needed, then enable the memory profile (XMP on many boards, EXPO on some AMD boards). Without it, RAM runs at a slower default speed.
- Install Windows from a USB drive, then the chipset and graphics drivers from the manufacturers' sites.
- Set your monitor's refresh rate in Windows display settings. New high-refresh monitors often sit at 60 Hz until you change it.
- Watch temperatures during a game for the first hour and adjust fan curves if the GPU or CPU runs hot.
Frequently asked questions
Is it cheaper to build a gaming PC than to buy a pre-built one?
Often yes, mainly because you choose where the money goes. Pre-built systems sometimes save on the power supply, use a single RAM stick, or carry a slow drive. Compare the full specification, not just the headline CPU and GPU, before deciding.
How much RAM does a gaming PC need?
16 GB is the sensible minimum. Choose 32 GB if you stream, edit video, run virtual machines or keep a lot open while gaming. Always buy RAM in a matched two-module kit.
Do I need liquid cooling?
Not for most builds. A good air cooler handles mainstream CPUs well and has fewer parts that can fail. We compare the two approaches in our liquid versus air cooling guide.
Can someone else assemble the parts I buy?
Yes. Xigox has a computer assembly service for parts you have bought yourself, so you do not have to handle the cabling and first boot on your own.
Should I upgrade later instead of buying everything now?
Spend on the parts that are hard to change later, namely the platform and power supply, and upgrade the easy ones, such as RAM and storage, as needs grow.
If you would rather have the build done for you, or need a gaming PC that already misbehaves looked at, see the gaming PC build service and the computer assembly service. Compare costs on the price list, or book a call and pickup. The ₹350 inspection fee on any repair is refunded if you go ahead.
