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ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card

ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card - 1
Actual product may not be exactly as shown.
ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card - 76367_l.jpg ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card - 76367_1.jpg ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card - 76367_2.jpg Customer Photos (0)

Reg. Price: $229.99  CAD
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   Shipping Weight:   3 lbs
   Part #: GTX660-DC2O-2GD5
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Features    [ Edit | History ]

ASUS GeForce® GTX 660 DirectCU TOP: 1085MHz TOP overclocked, 20% cooler, 3X quieter

  • TOP-selected 1085MHz cores run 105 MHz higher than reference for smoother gameplay.
  • DirectCU achieves 20% lower temps with twice the dissipation area and 6X greater airflow than conventional design.
  • DIGI+ VRM with Super Alloy Power delivers superior efficiency, reliability, and performance.
  • GPU Tweak helps you modify clock speeds, voltages, fan performance and more, all via an intuitive interface.
Quick Specs:
Host Interface PCI Express 3.0 x16
Platform Supported PC
Limited Warranty 3 Year
Standard Memory 2 GB
Thickness 1.5"
API Supported DirectX 11.0 OpenGL 4.2
Form Factor Plug-in Card
Length 10.2"
Memory Speed 6008 MHz
Maximum Resolution 2560 x 1600
Cooler Type Fan Cooler
Memory Technology GDDR5 SDRAM
Height 5.2"
HDCP Supported Yes
Bus Width 192 bit
Multi-GPU Technology SLI
Green Compliant Yes
Green Compliance Certificate/Authority RoHS
RAMDAC Speed 400 MHz
Analog Signal Yes
Digital Signal Yes
Number of Monitors Supported 3
Dual Link DVI Supported Yes
Chipset Manufacturer NVIDIA
Chipset Model GTX 660
Chipset Line GeForce
Chipset Series GTX 600
DisplayPort Yes
Number of DisplayPort Outputs 1
Number of DVI Outputs 2
Number of HDMI Outputs 1
GPU Clock 1.02 GHz

Specifications    [ Edit | History ]
General Information  
     Brand Name: Asus
     Manufacturer: ASUS Computer International
     Manufacturer Part Number: GTX660-DC2O-2GD5
     Manufacturer Website Address:
     Product Model: GTX660-DC2O-2GD5
     Product Name: GTX660-DC2O-2GD5 GeForce GTX 660 Graphic Card
     Product Type: Graphic Card
     DisplayPort: Yes
     Dual Link DVI Supported: Yes
     DVI: Yes
     HDMI: Yes
     Host Interface: PCI Express 3.0 x16
     Number of DisplayPort Outputs: 1
     Number of DVI Outputs: 2
     Number of HDMI Outputs: 1
     Bus Width: 192 bit
     Memory Speed: 6008 MHz
     Memory Technology: GDDR5 SDRAM
     Standard Memory: 2 GB
     Green Compliance Certificate/Authority: RoHS
     Green Compliant: Yes
     Platform Supported: PC
Physical Characteristics  
     Cooler Type: Fan Cooler
     Form Factor: Plug-in Card
     Height: 5.2" (132.1 mm)
     Length: 10.2" (259.1 mm)
     Thickness: 1.5" (38.1 mm)
Processor & Chipset  
     Chipset Line: GeForce
     Chipset Manufacturer: NVIDIA
     Chipset Model: GTX 660
     Chipset Series: GTX 600
     GPU Clock: 1.02 GHz
     Number of Stream Processors: 960
     Software Included:

ASUS GPU Tweak & Driver

Technical Information  
     Analog Signal: Yes
     API Supported: DirectX 11.0
OpenGL 4.2
     Digital Signal: Yes
     Features: Super Alloy Power
Factory Overclocked
GPU Boost
Adaptive Vertical Sync
3D Vision Surround Ready
     HDCP Supported: Yes
     Maximum Resolution: 2560 x 1600
     Multi-GPU Technology: SLI
     Number of Monitors Supported: 3
     RAMDAC Speed: 400 MHz
     Limited Warranty: 3 Year

ASUS GTX660-DC2O-2GD5 Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding ASUS GTX660-DC2O-2GD5 reviews.
Experience: 2 Years
great graphic that still run new games
no problem of reliability
The refund by mail from asus take too much time before being treated.
Can't remember but it a lot of month before receive the 20$ refund (when they have refund)
excellent graphic card

Experience: 2 Weeks
 Verified Owner
- Able to output 1440p 2560 x 1440 nicely on my 32in monitor
- Display port, DVI and HDMI - Good output options
- Lower power consumption and less heat
- None so far
I'm not a big PC gamer so I didn't need a heavy duty video card but I did need a decent budget card to output 2560 x 1440 resolution on a 32in monitor. I also opted for the 660 as my other components are a bit older. This is an excellent budget card with great performance 100% recommended

Experience: 1 Years
-Perfect for high-ultra graphics on 1080p.
-Stock temps were 50c-70c. With my own thermal paste 47c-69c.
-Shadowplay works great for recording gameplay.
Great product quality. On Race 07 I get about 120 FPS with the graphics cranked (Enhanced 16xQ CSAA and DSR 3x 75% smoothness). yay ^_^

Experience: 1 Years
Runs most new games on ultra graphics at 60-80 fps
Easy to overclock
Keeps cool
large, takes up the pci-e port it plugs into and the one directly below it.
I have owned 2 these card for over a year now and i have no issues with anything. I have them SLI connected and they run unbelievably. The only thing that might be an issue is that the card takes up 2 slots so it covers the pci slot (or which ever you have under) but that goes for most medium to high end graphics cards now a days.

Experience: 20 Days
 Verified Owner
runs quiet
good price i feel for benchmarks and considering i was planning to get a 750 ti instead i think the extra cash was worth it
stable drivers (afterthought)
only con i can think of, and this may be my own fault is card runs hot im sitting here currently playing civilization 5 complete collection top notch and gpu diode is at 67c 153 f and gpu vram is at 89c 192f. I am not sure if aida is reading it wrong or not but i dont see how this card is that hot and aida says fan speed is at 55%, I just felt the card and it feels hot but not burning hot, i just wish there was an easy way to manually control the fan speed better or set it so it speeds up quicker earlier will include more in summary.
nice card runs every game i play full tilt except i had an issue on arma 2 with the dayz mod i learned going to nvidia control panel and adjusting the power managment option for maximum performance helped. Friendly reminder to those who may be experiencing lag with some high end nvidia cards, anyways cards at 55% fan speed suppossidly runnig really hot. It is still quiet but what i observed about this card a lot is the fact it likes to turn up fan speed gradually, it starts at 10% speed then when it hits around 50c (im canadian so not familiar with farienheight off hand) it boosts it up ever so slighty the fan speed that is. Later on it keeps it below 50c as best as it can for a while, slowly boosting fan speed then overtime seems to stop caring about temperature and does its own thing. That is just my experience maybe im inexperienced, maybe im over thinking temperature wise. I hope this review is helpful, im still getting use to this video card and its features etc so far though im really satisfied with this purchase if this comes down in price i would not hesitate for a second to SLI these cards.

Experience: 25 Days
 Verified Owner
- Works as advertised; amazing value
- Zero config for Hackintosh
- None really
- Odd bug in OS X 10.9 (Mavericks) keeps the fans throttled at 100%
I installed this in my Hackintosh. Kepler based cards do not require any configuration.

Runs my gaming flawlessly on both Mac and Windows.

NOTE: There is a bug OS X 10.9 (Mavericks) that causes the GPU fans to spin up and maintain 100% fan speed.

Definitely one of the best Value-performance combinations available today.

Experience: 1 Months
ASUS, 1080P, 2x DVI, less than $200, quiet
A small big for my casing
Always trusted Asus product. Running behind the scene quietly. Powerful enough for gaming and playing movie with duo monitors. 1080p + 2x dvi.

A small tight for my casing, perhaps mine is small.

Experience: 3 Months
 Verified Owner
Plays all games at 1080p with High/Ultra settings at 30+ fps, all you will need for now.
None thus far.
Runs cool and Quiet, looks sexy, made by ASUS, plays everything at 1080p on high/ultra at 30+ FPS (all you need really) I actually bought this for my HTPC I got it on sale for $179.99 and after MIR it was 159.99 and came with AC4 and Splinter Cell ($120 worth at the time) I was going to buy AC4 anyways so in my head I just subtracted another $60 from the $159.99 and it was like getting it for $100, couldn't be more happy even though its total overkill for my HTPC lolbut allows my brother to play LAN games with me now :)

Experience: 7 Days
 Verified Owner
Works oob with Hackintosh, good performance
Long card- a bit of work to squeeze in
This was a significant bump up in graphics power. I drive two monitors (27" and 24") via DVI dual-link, and this works well and makes most games playable at full resolution (2560x1440). Easy enough to install and work with native Mac drivers with no fuss. I had to move 1 hard drive in my case (Antec atx case) to have enough room for this length-wise, and route a couple of cables around it.

Experience: 1 Weeks
 Verified Owner
Fairly quiet.
Nice looking unit.
None thus far.
This was purchased as an upgrade to a 5770, and what a difference, indeed! It runs much cooler than the 5770 and is fairly quiet even when the fans are at full rpm. It's a nice looking unit, but it is pretty large, so I would recommend taking measurements before purchasing. I have a full size ATX case and it fits like a glove.

 NCIX Forum Messages

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Messages about ASUS GeForce GTX 660 OC DirectCU 1020MHZ 2GB 6.0GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card

Converter (Alexis_F- Feb 16, 14, 2 Replies) Read this message
Black Flag and Black List (Dana_B- Jan 10, 14, 1 Replies) Read this message
Mail in Rebate for November says December (Dale_J- Dec 16, 13, 2 Replies) Read this message
From Geforce GTX 470 to Geforce GTX 660? (Jeff_M- Dec 11, 13, 6 Replies) Read this message
SLI power question (Darren_L- Dec 03, 13, 2 Replies) Read this message
Curious... (Ult- May 16, 13, 3 Replies) Read this message
Is this the Direct CU or Direct CU II? (son- Apr 16, 13, 1 Replies) Read this message
GeForce GTX 660 (popochan- Mar 26, 13, 1 Replies) Read this message
Replace 2x 5770s with GTX660 (David_B- Mar 22, 13, 16 Replies) Read this message

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Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Posted by: TheBigTroll1226 @04/02/13
Comment: 8% faster than the NVIDIA GTX 660 reference design
Posted by: Martin_G @02/20/13
Posted by: TheBigTroll1226 @12/13/12
Posted by: TheBigTroll1226 @12/13/12
Posted by: TheBigTroll1226 @12/13/12
Posted by: Brian_W @09/21/12
Posted by: TheBigTroll @09/14/12
Submit a review link   |   Latest 30 reviews
Product Warranty
First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Video Cards:
All ASUS VGA cards purchased after January 1st, 2001 will carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

Sound Cards:
All ASUS audio cards carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

ASUS LCD Monitors:
ASUS LCD monitors carry a 7 day DOA warranty from NCIX, and 3 years limited manufacturer warranty from purchase date. For details on DOA (dead on arrival), bright/dark dot warranty, please visit

Asus EEE Pads:
Asus EEE Pads carry a 1 year limited warranty from purchase date.  For technical support, please call the service hotline at 1-888-678-3688.

Asus Notebooks:
ASUS Notebook Service Center in Toronto, Canada.

For ASUS branded notebooks (not including Eee products and Built-on ASUS):

Complete Customer Care Package

One of the industry’s most complete customer care packages offers a level of coverage that adds to the price of competing products:

  • 1 Year Global Warranty (estimated $100 value, FREE)
  • 30-Day Flawless Display Guarantee: If you discover one defective bright dot within 30 days of purchase, ASUS will replace the panel at no cost.
  • Two way free shipping
  • 24/7 tech support: 1-888-678-3688

Accidents Happen

You have extra protection when they happen to your ASUS notebook purchased in the US or Canada. ASUS will fix it or replace it for you at no charge during the first year after purchase in the event of damage from accidental spills, drops, electrical surges, or fire.

  • Warranty covering accidental drops, spills, power surges, and fire damage
  • Target 3 business day turnaround time for repair / replacement; not including receiving and shipping time
  • One-way shipping (from ASUS to the user) at no additional cost
  • 24/7 toll-free phone support
  • One incident covered per notebook


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While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages, from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

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