Bykski GPU Water Block For Galax RTX 4080 Boomstar / 4080 Super Boomstar OC, Full Cover With Backplate PC Water Cooling Cooler, N-GY4080XY-X
Bykski GPU Water Block For Galax RTX 4080 Boomstar / 4080 Super Boomstar OC, Full Cover With Backplate PC Water Cooling Cooler, N-GY4080XY-X
SKU:N-GY4080XY-X_RBW
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The Bykski N-GY4080XY-X full-cover water block is engineered for the Galax RTX 4080 Boomstar and 4080 Super Boomstar OC, delivering direct cooling to GPU die, 16GB GDDR6X VRAM, and VRMs. At 320W sustained AI load, stock fans scream at 45–65 dBA—this block drops operation below 30 dBA, making dual-4080 home LLM builds actually livable in bedrooms and home offices.
VRAM PROTECTION is critical: GDDR6X modules throttle at 92°C during hours-long Stable Diffusion or Ollama inference sessions. Bykski's precision-milled copper cold plate presses directly onto every memory chip, eliminating thermal throttling that silently degrades model performance. For builders reviving used 4080s with dried thermal pads, this installation performs a complete thermal reset.
24/7 RELIABILITY & MULTI-GPU NECESSITY define AI workloads, not gaming. Twin 4080s push 640W+ in a single case—no air solution exists. Water cooling provides the sustained thermal headroom for continuous inference, with dual-loop flexibility that stock coolers cannot approach.
Nickel-plated copper construction, G1/4 standard threads, integrated aluminum backplate for PCB rigidity. Ships worldwide.
Frequently Asked Questions
Is this waterblock compatible with my RTX 4080 Super?
This Bykski waterblock is designed for the RTX 4080 Super. Check the product title for specific card brand compatibility — non-reference PCB designs (ASUS Strix, MSI Suprim, etc.) require model-specific blocks. Reference/Founders Edition cards use a different block.
How much quieter will my RTX 4080 Super be with water cooling?
Stock RTX 4080 Super coolers run at 45-65 dBA under sustained AI workloads like Ollama or Stable Diffusion. A full-cover waterblock reduces noise to under 30 dBA — quieter than a refrigerator. VRAM temperatures also drop from 90°C+ to 60-70°C, preventing thermal throttling during long inference sessions.
What else do I need for a complete loop?
Besides this waterblock, a complete custom loop needs: a radiator (360mm minimum for 320W TDP), a D5 or DDC pump with reservoir, G1/4 fittings (8-12 pieces), tubing (soft or hard), and coolant. FormulaMod carries all components — browse our AI Workstation Cooling collection for complete setups.
Can I run this 24/7 for AI inference?
Yes. Water cooling is designed for sustained loads, unlike air coolers which rely on fan speeds that create noise. A properly maintained loop can run 24/7 indefinitely with coolant changes every 12-18 months.
Does FormulaMod ship to the USA and Europe?
Yes. We ship worldwide from our Shenzhen warehouse. USA and EU orders typically arrive within 7 days. All products are covered by our return policy.
Why Water Cool the RTX 4080 SUPER?
- Full-cover block protects GDDR6X under persistent generative AI load
Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.
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