Best RTX 3090 Gaming PC Build – [Ultimate Guide]

RTX 3090 Gaming PC Build

The GeForce RTX 3090 is a big ferocious GPU with TITAN class performance. It’s powered by Ampere NVIDIA’s 2nd gen RTX architecture, doubling down on ray tracing and AI performance with enhanced Ray Tracing Cores, Tensor Cores, and new streaming multiprocessors. Plus, it features a staggering 24 GB of GDDR6X memory, all to deliver the ultimate gaming experience to you with no compromises. This GPU can run games on 8k resolution at 60 constant FPS, ensuring you get the best gaming experience. Graphics cards do not get any better than the RTX 3090. The top-notch performance at the price of $1500 is just an insanely tempting offer.

Components to pick along the RTX 3090

Hardware ComponentModelPrice
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Asus ROG Maximus XII Hero (Motherboard)

Asus ROG Maximus XII Hero

This motherboard is the best choice for RTX 3090 gaming pc build, and this is due to its compatibility and the performance reviews. This motherboard’s top-notch VRM is best to support the processor we will be using in our build. The VRM is responsible for supplying and maintaining voltage supply to your processor so it can perform and provide you with its maximum output. It’s a motherboard that is packed with substantial power, smart cooling, and faster memory support under stealthy skin. This motherboard ensures every component in your build gets the optimal power and can perform to its capacity. As we talked about, keeping the temperatures under control keeps all the hindrances in performance away from your pc.

This motherboards AI Cooling automatically manages and controls motherboard connected fans, ensuring the most efficient settings depending on the current system load and temperature. The CPU we will be equipping this computer with features 10 cores and a peak single-core Turbo speed that exceeds 5.3 GHz right out of the box. To cope with this increased demand on the system, Maximus XII Hero takes advantage of its intelligent VRM design and uses quality components to ensure the best gaming and daily productive computing experience.


ChipsetIntel® Z490
Memory Support             4 x DIMM, Max. 128GB, DDR4
Support for Intel® Extreme Memory ProfileYes
DisplayIntegrated Graphics Processor 1 x HDMI 1.4b
StorageSupports 3 x M.2 slots and 6 x SATA 6Gb/s ports
InternetIntel® Wi-Fi 6 AX201 –  Supports up to 2.4Gbps

Intel Core i9 10900K (Processor)

Intel Core i9 10900K

This processor is one of the best processors for gaming in the market, if not the best. It features a base frequency of 3.70 GHz and a max turbo frequency of 5.3 GHz, taking performance in gaming to its peak. This processor is sure to fit with the high-end games you will be playing on your RTX 3090 and still keep performing at the highest level, even on 8k resolutions. Processors are very much responsible for your in-game FPS, and this CPU is recommended for RTX 3090 pc build because it is sure to keep the FPS over 60 even at 8l resolution. Can’t human eyes even perceive more than 30 fps anyway? Not something a pc gamer likes to hear.

Keeping the FPS as high as possible helps the game feel smooth, so even if you are playing the latest AAA titles at the highest resolution or just a competitive game at high-end settings, you still get the most FPS if this CPU is combined with the RTX 3090 along with the motherboard mentioned above. This processor features ten cores and 20 threads for the highest quality of performance. This 10th generation processor can be purchased at $530, which might not be expensive considering its performance compared to other gaming processors for high resolution and the highest graphical settings. 

Related: Best Motherboards for i9 10900K


Lithography                        14 nm
Number of Cores                           10
Number of Threads20
Processor Base Frequency 3.70 GHz
Max Turbo Frequency          5.30 GHz
Max Memory Size                128 GB
Graphics Video Max Memory64 GB

NZXT Kraken X73 RGB (CPU Cooler)

NZXT Kraken X73 RGB

Talking about all the high performance of the CPU got the topic heated. Let’s cool it down with our most recommended cooler for 10th gen processors. Running all the latest games at the highest possible setting on the 8k will make the processor’s temperature rise as it will be used to the extreme. For our CPU’s temperature to be under control, we suggest equipping it with the best CPU coolers. What can be better at cooling a processor than a radiator cooler? The recommended and the sleekest looking cooler for our CPU is the NZXT Kraken x73 RGB.

This cooler keeps the temperature under control while keeping the aesthetic look of your rig. Who wouldn’t like to have an NZXT RGB cooler in their pc? All new 7th Gen Asetek pumps of this cooler provide better cooling and 800RPM, which means whisper-quiet performance. It comes with an 8-year warranty, the 3 120mm fans on the radiator are sure to keep the ventilation in good condition even in the worst possible scenario. The rubber tubing is reinforced, making it further leakage proof. The RGB and the NZXT logo give your rig a cool look, and the temperatures are sure to stay under control due to its cooling performance.


Water BlockDimensions: Diameter: 80mm; H: 55mm Material: Block: copper; Housing: plastic pump Motor Speed: 800 – 2,800 + 300 RPM Power: 12VDC, 0.3A
RadiatorDimensions: 121 x 394 x 27mm Material: Aluminum
TubeLength: 400mm Material: Ultra-low evaporation rubber with braided nylon sleeve
CapMaterial: Plastic and brass Rotation Orientation: 360° with 30° increments
NZXT RGB Channel Output Voltage5V DC
FanModel: Aer RGB 2 120 Quantity: 3 Dimension: 120 x 120 x 26mm Speed: 500 – 1,500 + 300 RPM Air Flow: 17.48 – 52.44 CFM Air Pressure: 0.15 – 1.35mm-H2O
Warranty6 years

G SKILL TridentZ RGB Series (RAM)

G SKILL TridentZ RGB Series 32GB

For running the games at 8k resolution and still getting the most FPS possible, RAM is a very important component. This can not be compromised. RAM is also responsible for your PC’s performance. These memory sticks will be crucial for running games at high resolutions and on the highest possible graphical settings. Featuring a completely exposed light bar with vibrant RGB LEDs, merged with the award-winning Trident Z heat spreader designed and constructed with the highest quality components, the Trident Z RGB DDR4 memory kit combines the most vivid RGB lighting with uncompromised performance.

This RAM will keep its own temperature under control even when used to its fullest. Getting 32 GBs of RAM is very important as running all the AAA title games at the highest possible setting uses a lot of RAM. Trident Z provides 3000MhZ directly to your computer, pushing performance to the extreme. The aesthetic look it will provide your build with is also like none other. You get the highest build quality and performance along with that appealing look in one, which is why this is the suggested RAM. This specific RAM is also rated as one of the best available, if not the best.


Memory Type      DDR4
Capacity16GB (8GBx2
Multi-Channel Kit  Dual Channel Kit
FeaturesIntel XMP 2.0 ready
Tested Speed     3200MHz

MSI Gaming GeForce RTX 3090 (GPU)

MSI Gaming GeForce RTX 3090 Gaming X Trio

Yes, we are using an RTX 3090 for this build, but there are a lot of different versions of the graphics card available in the market. Choosing from one of these versions might actually be very overwhelming and confusing for most people as the difference is not very clear. So we suggest you the best available 3090 GPU in the market due to its certain features. The MSI Gaming X Trio is the best choice for our build as we are going all out on this one. The features on this GPU are better than any other GPU available in the market, and it just looks stunning. This GPU will make sure you enjoy all your favorite games with a powerful graphics card that stays cool and silent.

Temperature control is very important in this build, as mentioned. Higher temperatures can actually make the computer’s performance worse, which we don’t want. Temperature control is one of the reasons we suggest using this GPU as it keeps cool, and you don’t have to spend extra money on the liquid cooling GPU kit. This graphics card is the best looking 3090 with RGB  that is available. These things might not be important for some but for most. It matters a lot to provide your rig with that extra notch of a cool look. The 3 fans on this GPU keeps its temperature under control with good ventilation systems. The case we will be using is also very compatible with this GPU. This graphics card might be a little more expensive than most, but it also provides you the highest Mhz in any RTX 3090.


InterfacePCIe Gen 4
Cores  10496 units
Core clocks                     Boost: 1785 MHz
Memory speed              19.5 Gbps
Memory24GB GDDR6X
Recommended PSU       750W
Card dimension(mm)      323 x 140 x 56mm

Be quiet straight power 11 Platinum (Power Supply)

Be quiet straight power 11 Platinum

Be quiet! Straight Power 11 Platinum 1000W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency. This PSU is one of the most efficient PSU ever, and It is 80+ certified, which is one of the highest efficiency certificates available. Straight Power 11 Platinum 1000W is certified with 80 PLUS Platinum efficiency, reaching up to 94.1%. This provides lots of benefits for your high-end gaming system, including less power consumption and an overall cooler and quieter operation. This PSU will provide the best and most efficient power to our motherboard GPU and CPU, which is very essential in our build as it requires a lot of power to function to the best of its abilities.

This PSU has the best of class airflow and still produces very little noise. Thanks to its unique and optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life, and minimal power consumption. This power supply will also help you keep the temperatures under control with its funnel-shaped fan inlet. It causes an increased throughput of air which benefits a higher cooling performance. This power supply is wire-free on the DC side inside the PSU body, resulting in improved cooling airflow and less signal disturbance. This is simply because of a lack of wiring which ultimately pushes the lifetimes of the components to a maximum. This PSU will keep the temperatures under control whilst providing sufficient power to all the components in your computer.


Continuous power (W)1000
Peak power (W)1070
Modular Cable managementYes
Wire-free design (DC-side)Yes
Voltage (Vac)100 – 240 Vac
Frequency (Hz)50 – 60 Hz
Input current (A)13 / 6.5 amp

Firecuda 520 1Tb (Storage)

Firecuda 520 1Tb

All those high-end games obviously take a lot of space, and this M.2 drive is the best recommendation so far for gamers. This M.2 is specifically designed for gamers, and you can keep all your software and the most played games in this drive and get the most performance from it. This M.2 drive provides up to 5 GBs of speed. Transfer speed also matters in games, and it can change the performance of the games a little due to its high-speed delivery. This might not be a huge change, but it still matters. This drive comes with a 5 years warranty, which might be the most in its category.

High-end games need a good delivery speed to run smoothly, and we clearly don’t want our games to stutter while running on an RTX 3090. With this drive equipped with your pc, you will not be compromising performance at all. If 1 Tb is not much space for you, this drive also comes with a 2Tb version to keep all your games in one drive. We still recommend getting a 2TB SSD to keep all your games safe and so you do not delete or compromise on a game for another. FireCuda SSD solutions are designed and built specifically with the needs of professional-level gamers in mind, so your needs are satisfied after equipping your rig with this SSD.


Speed45% more speed than PCIe Gen3 M.2 NVMe.
Form FactorM.2 2280 double-side
InterfacePCIe Gen4 ×4, NVMe 1.3
Max. Sequential Read5,000 MB/s
Max. Sequential Write4,400 MB/s
Capacity2 TB, 1 TB, 500 GB
Limited Warranty5 years

NZXT H710i (Case)

NZXT H710i

We recommend the best-looking case with the best ventilation system and even a proper cable management system. The tempered glass side panel on this case will show off all your high-end components in your rig, and the RGB will keep your aesthetic craving satisfied. NZXT cases are known for their sleek designs and their cable management system. Cable management actually makes a lot of clearance in your build, so you can easily show off your components while keeping them cool. Managing cables can affect the ventilation of your computer. Good ventilation means under control temperatures, which is our goal with this case.

The aforementioned CPU cooler fits perfectly on the top of this case while showing the CPU meter on the CPU clearly, and the RGB glow is also very prominent. Our RTX 3090 also has a lot of clearance space in this case, so the temperature on our GPU will also remain normal. For cable management, the opposite side of the case is equipped with the cable management bar, which will hold all the cables in position, and they don’t hang above your fans. You can even show off your graphic card with a built-in mounting bracket for installing your GPU vertically.


DimensionsW: 230mm H: 516mm D: 494mm (with feet)
Material(s)SGCC Steel and Tempered Glass
Weight12.3 kg
Motherboard SupportMini-ITX, MicroATX, ATX, and EATX (Up to 272mm or 10.7-inches)
Vertical GPU MountUp to 2.5 Slots
Radiator SupportFront: 2x 140 or 3x 120mm with Push/Pull Top: 2x 140 or 3x 120 Rear: 1x 120
ClearanceCable Management: 18-22mm GPU Clearance: Up to 413mm Vertical GPU Mount Clearance: 50.8mm CPU Cooler: Up to 185mm Front Radiator: 60mm Top Radiator: 30mm Reservoir & Pump: Up to 224mm (Along cable bar)


Given all the performance and perks of the 3090, it’s not like you can equip this beast in any pc, and it will run perfectly, and performance will be maxed out in your pc. To get the most out of this GPU, you need to make sure you combine it with the best components available and keep the temperatures under control. As we know, it’s not only a graphic card that provides you with all the resolution and high-end performance; every other component is considered to play an important role in making your computer perform the best.

So in this build guide, we provided you with a build that will be a king in performance as well as look really cool and even keep the temperatures under control. In the end, you can choose specific parts as you like and change them with whichever you want. The performance might differ a little, but it’s your choice. Some people might want it to look duller or with even more RGB, but like mentioned in the end everyone has their own preferences.

Read Also:

Best Gaming PC Build under $2500
Best Gaming PC Under $1500 in 2021
$2000 Gaming PC Build
7 Best Prebuilt Gaming PC Under $1000
How to Build a Budget Gaming PC

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