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ASUS RTX 3070 Noctua OC graphics card with two beige cooling fans

ASUS

ASUS RTX3070-O8G-NOCTUA GeForce RTX 3070 graphics card

SKU CH-ZK77-Z5TGK MPN RTX3070-O8G-NOCTUA

Refurbished GeForce RTX 3070 with 8 GB GDDR6, dual Noctua fans, dual-BIOS switch and LHR-limited 25 MH/s Ethereum hash rate

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 30 Series
  • GPUGeForce RTX 3070
  • ArchitectureAmpere
  • Boost Clock1845 MHz (OC Mode) 1815 MHz (Gaming Mode)
  • Noctua NF-A12x25 PWM fans give quiet, effective cooling
  • Dual BIOS switch toggles Quiet and Performance profiles without software
  • Ampere architecture delivers 5888 CUDA cores for strong 1440p gaming
  • 8 GB GDDR6 on a 256-bit bus at 14 Gbps feeds high-resolution textures
  • Two HDMI 2.1 and three DisplayPort 1.4a ports drive up to four 8K displays

Noctua OC Edition RTX 3070

This ASUS GeForce RTX 3070 pairs NVIDIA Ampere architecture with two Noctua NF-A12x25 PWM fans and a custom heatsink. It targets builders who want low-noise thermal performance in a 4.3-slot design. The card carries 8GB of GDDR6 memory across a 256-bit bus and a 220W TDP.

LHR model replaces standard RTX 3070

The Lite Hash Rate variant caps Ethereum mining at roughly 25 MH/s while keeping gaming clocks intact. OC mode lifts the boost clock to 1845 MHz and Gaming mode runs at 1815 MHz. The jump makes sense when quieter operation matters more than raw hash rate.

Dual BIOS and 12.20-inch length

A hardware switch toggles between Quiet and Performance BIOS profiles without software. Two 8-pin connectors feed a 750W recommended PSU. The 310mm length demands a spacious case; the 4.3-slot thickness can block adjacent PCIe slots on tighter motherboards.

Highlights

  • Noctua NF-A12x25 PWM fans give quiet, effective cooling
  • Dual BIOS switch toggles Quiet and Performance profiles without software
  • Ampere architecture delivers 5888 CUDA cores for strong 1440p gaming
  • 8 GB GDDR6 on a 256-bit bus at 14 Gbps feeds high-resolution textures
  • Two HDMI 2.1 and three DisplayPort 1.4a ports drive up to four 8K displays

Specifications

BrandASUS
SeriesNoctua OC Edition
ModelRTX3070-O8G-NOCTUA
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 30 Series
GPUGeForce RTX 3070
ArchitectureAmpere
Boost Clock1845 MHz (OC Mode)
1815 MHz (Gaming Mode)
CUDA Cores5888
Effective Memory Clock14 Gbps
Memory Size8GB
Memory Interface256-Bit
Memory TypeGDDR6
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI2 x HDMI 2.1
DisplayPort3 x DisplayPort 1.4a
Max Resolution7680 x 4320
SLI SupportNo
CoolerDouble Fans
Thermal Design Power220W
Recommended PSU Wattage750W
Power Connector2 x 8-Pin
HDCP Ready2.3
Max GPU Length310 mm
Card Dimensions (L x H)12.20" x 5.79"
Slot Width4.3 slot
Shipping weight2.20 kg
Package size432 × 254 × 127 mm

Questions about this item

Will the 310 mm length and 4.3-slot width fit in my case and motherboard spacing?

The card measures 310 mm long and occupies 4.3 slots, so verify your case clearance and that adjacent PCIe slots remain unobstructed.

Which PCIe power cables are required for the 220 W board?

Connect two 8-pin PCIe cables from a 750 W or larger PSU; using a single daisy-chained cable can cause instability.

When should I clean the two Noctua NF-A12x25 PWM fans and heatsink?

Remove dust from the fans and tailor-made heatsink every 6 to 12 months to maintain the low-noise cooling performance.

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