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Black triple-fan graphics card with silver accents, 342 mm long, 3.7-slot design

GIGABYTE

GIGABYTE GV-N408SGAMING OC-16GD GeForce RTX 4080 SUPER 16GB graphics card

SKU CH-GR40-TCCTR MPN GV-N408SGAMING OC-16GD

Refurbished GeForce RTX 4080 SUPER with 16GB GDDR6X, 2595 MHz boost clock, triple-fan WINDFORCE cooling and 3.7-slot ATX design

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 40 Series
  • GPUGeForce RTX 4080 SUPER
  • ArchitectureAda Lovelace
  • Core Clock2595 MHz (Reference card: 2550 MHz)
  • Factory overclock to 2595 MHz for higher frame rates
  • 16GB GDDR6X at 23 Gbps feeds 4K textures without stutter
  • WINDFORCE triple-fan cooler keeps 320W TDP under control
  • PCIe 4.0 x16 and 850W PSU ready for modern builds
  • HDMI 2.1a plus three DisplayPort 1.4a drive four 8K displays

Built for 4K gaming and creative workloads

The GIGABYTE GAMING OC model pairs the GeForce RTX 4080 SUPER GPU with 16GB of GDDR6X memory on a 256-bit interface. It targets enthusiasts who need high frame rates at 4K resolution and creators who rely on 10240 CUDA cores for rendering and compute tasks. The card occupies 3.7 slots and measures 342 mm in length, requiring an ATX case with adequate clearance.

Sustained load behaviour with WINDFORCE cooling

A triple-fan WINDFORCE cooler dissipates the 320W thermal design power during extended gaming or rendering sessions. The factory core clock runs at 2595 MHz, above the 2550 MHz reference speed, and the memory operates at 23 Gbps effective. Stable output depends on an 850W power supply feeding the single 16-pin connector. Dual BIOS lets you choose between performance and quieter fan curves for long runs.

16GB GDDR6X decides fit for high-resolution work

The 16GB frame buffer combined with 23 Gbps GDDR6X on a 256-bit bus determines whether this card handles your 4K texture sets, large 3D scenes or multi-monitor arrays. Display outputs comprise 1 x HDMI 2.1a and 3 x DisplayPort 1.4a driving up to 7680 x 4320 resolution across four screens. PCI Express 4.0 interface and DirectX 12 Ultimate support complete the feature set.

Highlights

  • Factory overclock to 2595 MHz for higher frame rates
  • 16GB GDDR6X at 23 Gbps feeds 4K textures without stutter
  • WINDFORCE triple-fan cooler keeps 320W TDP under control
  • PCIe 4.0 x16 and 850W PSU ready for modern builds
  • HDMI 2.1a plus three DisplayPort 1.4a drive four 8K displays

Specifications

BrandGIGABYTE
SeriesGAMING OC
ModelGV-N408SGAMING OC-16GD
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 40 Series
GPUGeForce RTX 4080 SUPER
ArchitectureAda Lovelace
Core Clock2595 MHz (Reference card: 2550 MHz)
CUDA Cores10240
Effective Memory Clock23 Gbps
Memory Size16GB
Memory Interface256-Bit
Memory TypeGDDR6X
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI1 x HDMI 2.1a
DisplayPort3 x DisplayPort 1.4a
ColorBlack
Max Resolution7680 x 4320
Virtual Reality ReadyYes
CoolerTriple Fans
Thermal Design Power320W
Recommended PSU Wattage850W
Power Connector1 x 16-Pin
Form FactorATX
Max GPU Length342 mm
Card Dimensions (L x H)150 x 75 mm
Slot Width3.7 Slots
Shipping weight2.65 kg
Package size432 × 267 × 127 mm

Questions about this item

How much power does the 320W TDP card draw through its single 16-pin connector during long sessions?

The graphics card has a thermal design power of 320W and draws that power through one 16-pin connector, so your power supply must deliver the full load on that cable.

What power supply wattage and connector does the 16-pin plug require?

The manufacturer recommends an 850W power supply to support the 320W TDP and the single 16-pin power connector on this card.

Will the 342mm length and 3.7-slot width fit alongside my existing ATX motherboard layout?

The card measures 342mm long and occupies 3.7 slots, so verify that your case has enough clearance and that adjacent PCIe slots remain accessible.

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