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RTX 5090 Custom Build with Ryzen 9 9950X3D - $7,730 SGD | Mansa Computers
Quick answer:
This RTX 5090 custom build in Singapore has the Ryzen 9 9950X3D and Nvidia RTX 5090 32 GB inside the white HAVN HS 420 VGPU, priced at $7,730 SGD and assembled by Mansa Computers.
Last updated: January 2026
AT A GLANCE
Build Summary
Build Type
4K Gaming PC
Key Components
Ryzen 9 9950X3D + RTX 5090 32 GB
Case
HAVN HS 420 VGPU - White
Price
SGD $7,730
Watch the Build
A High-End RTX 5090 Custom Build in the HAVN HS 420
This RTX 5090 custom build in Singapore puts the Ryzen 9 9950X3D and Nvidia RTX 5090 32 GB inside the white HAVN HS 420 VGPU, assembled by Mansa Computers for $7,730 SGD. The HAVN HS 420 VGPU mounts the graphics card vertically, placing the RTX 5090 on full display through the tempered glass panel. The NZXT RGB Kraken Plus V2 360mm AIO (all-in-one liquid cooler) sits at the top with a built-in LCD display, and eight Arctic P14 ARGB fans move air through the chassis.
The Lexar NM790 2 TB NVMe (Non-Volatile Memory Express) Gen 4 SSD covers primary storage. The Gigabyte X870 Aorus Pro ICE motherboard provides the AM5 platform with Wi-Fi 7 and Bluetooth, and KingBank Soarblade DDR5 fills the memory slots at 64 GB and 6400 MHz.
FULL SPECS
What's Inside
Motherboard
Gigabyte X870 Aorus Pro ICE Wi-Fi 7 & Bluetooth
Processor
Ryzen 9 9950X3D
Cooler
NZXT RGB Kraken Plus V2 360 AIO (LCD) - White
Graphics Card
Nvidia RTX 5090 32 GB - Gigabyte
Storage
Lexar NM790 2 TB NVMe Gen 4 SSD
RAM
KingBank Soarblade RGB DDR5 64 GB 6400 MHz - Black
Power Supply
Thermalright 1200 W 80+ Gold
Case
HAVN HS 420 VGPU - White
Operating System
Activated Windows 11 Home 64-Bit
Fans
8 x Arctic P14 PWM PST ARGB - White
Build Photos
Swipe or use arrows to see more photos.
AIO Cooler & RAM
This close-up shows the NZXT LCD cooler beside KingBank RGB RAM, highlighting the clean white-and-blue theme around the motherboard area.
RAM & Interior Detail
This shot focuses on the illuminated memory, white AIO tubing, and tidy cable routing, giving the build a clean, premium internal presentation.
Bottom Fan & Interior Layout
This image highlights the bottom intake fans, white interior layout, and airflow-focused design, showing how the build balances cooling performance with bright showcase lighting.
GPU Showcase
This shot focuses on the Gigabyte triple-fan graphics card mounted vertically, giving the RTX 5090 strong visual presence inside the glass-panel display layout.
Completed Build
A full view of the completed system, showcasing the white HAVN case, vertical GPU mount, multiple RGB fans, and a premium high-end custom build presentation.
PERFORMANCE
Performance at 4K
The RTX 5090 hits 207 FPS in Resident Evil 4 at 4K, per GamersNexus. Final Fantasy XIV runs at 182 FPS, Dragon's Dogma 2 at 133 FPS, Dying Light 2 at 126 FPS, and Starfield at 108 FPS. Nvidia rates the card at 575 W TGP (Total Graphics Power), and the Thermalright 1200 W PSU covers that draw with room for the rest of the system.
The Ryzen 9 9950X3D is AMD’s 16-core Zen 5 processor with 3D V-Cache, designed to reduce memory latency in games and improve frame delivery. It also handles editing, rendering, and multitasking very well.
"There really is no question, RTX 5090 is the card you want for 4K gaming at maximum settings with all RT eye candy enabled."
TechPowerUpTotal Price
SGD $7,730
Pricing as of January 2026. Component prices change with market conditions. Press the WhatsApp button on the right to speak with us if you need help with a PC build for a current quote.
FAQ
Frequently Asked Questions
How fast is the RTX 5090 at 4K?
At 4K, the RTX 5090 hits 207 FPS in Resident Evil 4, 182 FPS in Final Fantasy XIV, 133 FPS in Dragon's Dogma 2, 126 FPS in Dying Light 2, and 108 FPS in Starfield, per GamersNexus. DLSS 4 with Multi-Frame Generation is available in supported titles, which can push displayed frame rates even higher.
What makes the RTX 5090 different from the RTX 5080?
The RTX 5090 has 32 GB of GDDR7 VRAM with 1792 GB/s of bandwidth, compared to 16 GB in the RTX 5080. At 4K, the extra VRAM gives more headroom for high-resolution textures in games and creative applications. Nvidia rates the RTX 5090 at 575 W TGP versus 360 W for the RTX 5080, and the performance gap at 4K can range from about 30% to 69% depending on the title, based on GamersNexus testing.
Does this PC come with Windows 11?
Yes. This build includes Activated Windows 11 Home 64-Bit, ready to use from first boot. No additional license purchase is needed.
Want Something Like This?
Every build is adjustable. Different GPU tier? Different colour scheme? We can spec it out.
Explore our custom gaming PC builds or view RTX 5090 options.
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