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ASUS ROG Strix GeForce RTX 4070 OC graphics card with three axial-tech fans, diecast shroud and vented backplate

ASUS

ASUS ROG Strix GeForce RTX 4070 OC 12GB graphics card

SKU CH-80JK-XB45E

Triple-fan 12 GB GDDR6X card with factory overclock to 2640 MHz, PCIe 4.0 interface and 3.12-slot cooler for sustained 4K gaming

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 40 Series
  • GPUGeForce RTX 4070
  • Core Clock2640 MHz
  • CUDA Cores5888
  • DLSS 3 boosts frame rates with 4th Gen Tensor Cores
  • Ray tracing accelerated by 3rd Gen RT Cores
  • 12 GB GDDR6X at 21 Gbps feeds 4K gaming
  • Triple Axial-tech fans move 31 % more air over 3.12-slot heatsink
  • Factory OC mode runs at 2640 MHz on PCIe 4.0

ROG Strix RTX 4070 OC 12GB for 1440p gaming

This ASUS graphics card targets gamers and creators who want high frame rates at 1440p with ray tracing enabled. The NVIDIA Ada Lovelace GPU delivers 5888 CUDA cores and 12GB of GDDR6X memory on a 192-bit bus. DLSS 3 frame generation and fourth-generation Tensor cores accelerate supported titles. A PCI Express 4.0 interface connects the card to modern platforms.

Check PSU cables case length and slot clearance

Verify that your power supply provides the required 12VHPWR or dual 8-pin connectors for the board. The 3.12-slot thickness occupies three full expansion slots plus a fraction of a fourth, so confirm motherboard spacing and case length allowance. A 192-bit memory interface and 21 Gbps effective clock set bandwidth expectations for memory-sensitive workloads. Ensure the chassis airflow path can feed three axial fans.

Diecast frame vented backplate triple axial fans

A diecast shroud, frame and backplate add structural rigidity while venting heat toward case exhaust. Three scaled Axial-tech fans move 31% more air than the previous design across a massive fin array. Digital power control uses high-current stages and 15K capacitors for stable delivery at 2640 MHz OC mode or 2610 MHz default mode. Outputs include two HDMI 2.1 and three DisplayPort 1.4a connectors for up to four displays at 7680×4320.

Highlights

  • DLSS 3 boosts frame rates with 4th Gen Tensor Cores
  • Ray tracing accelerated by 3rd Gen RT Cores
  • 12 GB GDDR6X at 21 Gbps feeds 4K gaming
  • Triple Axial-tech fans move 31 % more air over 3.12-slot heatsink
  • Factory OC mode runs at 2640 MHz on PCIe 4.0

Specifications

BrandASUS
SeriesROG STRIX
ModelROG-STRIX-RTX4070-O12G-GAMING
Part Number90YV0J00-M0AA00
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 40 Series
GPUGeForce RTX 4070
Core Clock2640 MHz
CUDA Cores5888
Effective Memory Clock21000 MHz (21 Gbps)
Memory Size12GB
Memory Interface192-Bit
Memory TypeGDDR6X
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI2 x HDMI 2.1
DisplayPort3 x DisplayPort 1.4a
Max Resolution7680 x 4320
Virtual Reality ReadyYes
CoolerTriple Fans
Thermal Design Power200W
Recommended PSU Wattage650W
Power Connector1 x 16-Pin
HDCP ReadyYes
Form FactorATX
Max GPU Length338.9 mm
Slot Width3.12 Slots

Questions about this item

Does the card ship with power cables or adapters in the box?

The box contains the graphics card, a GPU Tweak III setup guide and a complimentary one-month Adobe Creative Cloud code. Power cables and any required 12VHPWR adapter are not included and must be sourced from the power supply.

The model lists OC mode at 2640 MHz and default mode at 2610 MHz — which should I choose?

OC mode runs the boost clock at 2640 MHz for maximum frame rates, while default mode runs at 2610 MHz with slightly lower power draw. Both modes use the same 12GB GDDR6X memory at 21000 MHz, so the choice is purely performance versus thermals.

What does the 2640 MHz boost clock actually deliver in a modern game at 1440p?

At 2640 MHz the 5888 CUDA cores and 12GB GDDR6X on a 192-bit bus provide high frame rates in 1440p titles; enabling DLSS 3 frame generation on the 4th-gen Tensor cores can multiply throughput further, while the 3.12-slot cooler and Axial-tech fans keep sustained clocks stable.

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