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Black dual-fan graphics card with silver backplate and DVI HDMI DisplayPort outputs

ASUS Refurbished

ASUS TUF-GTX1660S-O6G-GAM GeForce GTX 1660 SUPER 6GB graphics card

SKU CH-7Z51-3D3R2 MPN TUF-GTX1660S-O6G-GAM

A refurbished GeForce GTX 1660 SUPER graphics card with 6GB GDDR6 memory, 1408 CUDA cores and a factory overclock to 1845 MHz for 1080p gaming

  • Graphics processorGeForce GTX 1660 SUPER
  • Memory capacity6 GB
  • Interface typePCI Express 3.0 x16
  • CUDA core count1408
  • Highest resolution7680 × 4320
  • Boost frequencyOC Mode: 1845 MHz Gaming Mode (Default): 1815 MHz
  • Factory automation boosts reliability with Auto-Extreme Technology
  • 6 GB GDDR6 on a 192-bit bus feeds 1408 CUDA cores
  • OC mode pushes boost clock to 1845 MHz for higher frame rates
  • Three video outputs drive up to three monitors at 7680 x 4320
  • 125 W TDP runs on a 450 W PSU with a single 8-pin connector

TUF Gaming GTX 1660 SUPER 6GB

The ASUS TUF Gaming GeForce GTX 1660 SUPER is a mid-range graphics card built for 1080p gaming. It features 1408 CUDA cores and 6GB of GDDR6 memory across a 192-bit interface. The PCI Express 3.0 x16 interface connects to a standard motherboard slot. A factory overclock raises the boost clock to 1845 MHz in OC mode for extra headroom.

Upgrade from GTX 1060 or original GTX 1660

This card replaces an older GTX 1060 6GB or the first GTX 1660 with noticeably higher frame rates. The faster GDDR6 memory and higher clocks deliver up to 1.5X performance over the GTX 1060 6GB. The jump is worth it when your current GPU struggles to hit 60 fps in modern titles at high settings. An 8-pin power connector and a 450W power supply are required for stable operation.

PCI Express 3.0 x16 bandwidth limits

The PCI Express 3.0 x16 link provides ample bandwidth for this performance tier. Bottlenecks only appear if the card is installed in a secondary slot wired at x8 or x4 speeds. The 192-bit memory bus and 14002 MHz effective clock feed the GPU without saturating the system bus. Three display outputs support up to 7680 x 4320 resolution across multiple monitors.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $95.99
Cheaper than about 92% of the 4,285 comparable items (median $354.99).
Memory capacity 6 GB
Lower than about 80% of the 3,563 comparable items (median 8 GB).
Boost frequency OC Mode: 1845 MHz Gaming Mode (Default): 1815 MHz
Lower than about 58% of the 1,837 comparable items (median 1.89 GHz).

New to this? How to buy a graphics card with Bitcoin — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Product lineTUF Gaming
Model nameTUF-GTX1660S-O6G-GAMING
Product colorBlack
Processor
TDP rating125 W
Memory
Type of memoryGDDR6
Display
Highest resolution7680 × 4320
Graphics
Graphics processorGeForce GTX 1660 SUPER
Memory capacity6 GB
Boost frequencyOC Mode: 1845 MHz
Gaming Mode (Default): 1815 MHz
CUDA core count1408
Core frequency1530 MHz
Chipset makerNVIDIA
Effective memory speed14002 MHz
Memory bus width192-Bit
DirectX support12
OpenGL support4.6
Supported displays3
Multi-GPU supportNo
VR readyYes
Audio & video
HDCP support2.2
Ports & slots
Interface typePCI Express 3.0 x16
HDMI ports1 x HDMI 2.0b
DisplayPort connectors1 x DisplayPort 1.4
DVI ports1 x DVI-D
Power
Recommended power supply450 W
Power input connector8-Pin
Size & build
Max graphics card length206 mm
Card size8.1 in × 4.9 in
Slots occupied2.3 slot
Shipping weight1.04 kg
Package size368 × 216 × 86 mm
More details
Cooling solutionDouble Fans

Questions about this item

Does the PCI Express 3.0 x16 slot and 125 W TDP require a 450 W power supply and an 8-Pin connector?

Yes, the card draws up to 125 W and needs one 8-Pin power connector; a 450 W PSU is the recommended minimum.

Which driver step is often missed when switching to the NVIDIA Turing GPU with 1408 CUDA cores?

After seating the card in the PCIe 3.0 x16 slot and attaching the 8-Pin connector, install the latest NVIDIA driver before launching games; skipping this leaves the 1408 CUDA cores running on the basic Microsoft driver.

How often should the dual-fan cooler be cleaned to keep the 125 W GPU at safe temperatures?

Remove dust from the two fans and heatsink fins every 6 to 12 months, or more often in dusty environments, to maintain airflow over the 125 W thermal design.

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