Featured Articles

Analyst reveals Apple Watch spec

Analyst reveals Apple Watch spec

An analyst has examined the Apple Watch supply chain in an effort to ascertain the exact spec of Cupertino’s new gadget…

More...
Nvidia's first 20nm product is a mobile SoC

Nvidia's first 20nm product is a mobile SoC

For much of the year we were under the impression that the second generation Maxwell will end up as a 20nm…

More...
Nvidia GTX 980 reviewed

Nvidia GTX 980 reviewed

Nvidia has released two new graphics cards based on its latest Maxwell GPU architecture. The Geforce GTX 970 and Geforce GTX…

More...
Nvidia adjusts GTX 980 and GTX 970 pricing

Nvidia adjusts GTX 980 and GTX 970 pricing

It appears that Nvidia has been feeling the pulse of the market and took some note from comments regarding the original…

More...
PowerColor TurboDuo R9 285 reviewed

PowerColor TurboDuo R9 285 reviewed

Today we will take a look at the PowerColor TurboDuo Radeon R9 285. The card is based on AMD’s new…

More...
Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Wednesday, 28 March 2012 13:00

Gainward GTX 680 tested - A closer look at GTX 680

Written by Sanjin Rados

gainward-gtx-680-thumbrecommended08 75

Review: Faster, cooler, great performer

Geforce GTX 680 looks very much like its predecessor, GTX 580. However, a more detailed inspection reveals several important differences.

gtx-680-gainward-front
580-cooler-1

Looking at the front, we see that the cooler is blower-style and that the fan was placed towards the top of the card rather than dead center. Once we removed the cooler, we saw that the voltage regulation circuitry was placed horizontally in the lower part of the card, rather than vertically like on GTX 580 cards. It could be that the part of the cooler towards the GPU doesn’t get as hot this way. The cooler was designed to cool the GPU, memory and voltage regulation circuitry at the same time.

gtx-680-gainward-cooler-design-1
gtx-680-gainward-cooler-design-2




The GTX 680 is powered via two 6-pin power connectors. It’s interesting to see that Nvidia opted on stacked power connectors. We personally don’t like this as it makes the task of connecting cables much harder. When disconnecting the cables, you’ll have to take out the bottom one first and then the top one, which was rotated by 180 degrees. 

gtx-680-gainward-power
 
We already said that Nvidia implemented a type of auto-overclocking (GPU Boost), which monitors consumption and TDP and then changes clocks on the fly in order to maximize performance. Monitoring consumption come courtesy of the three INA219 power monitor chips (two for 6-pin power connectors and one for PCI-Express consumption).

gtx-680-gainward-power-regulation

The memory is faster than ever before, which means Nvidia solved some important issues in this respect. The GTX 680 comes with 2GB GDDR5 memory that runs at 1502MHz (6008 MHZ GDDR5 effectively). The chips on Gainward’s card are made by Hynix, and carry the model number H5GQ2H24MFR-R0C. They are specified to run at 1500 MHz (6000 MHz GDDR5 effective).

gtx-680-gainward-memory

The card has a dual-link DVI port (with analog VGA), one dual-link DVI port (digital only), one standard HDMI and DisplayPort. Thanks to Nvidia’s new display output logic, Kepler based cards can support up to four displays.

gtx-680-gainward-video
The card is 25,6cm long, whereas last top models like the HD 7970 or GTX 570/580 are 27 long. Just like all high-end cards, Gainward’s GTX 680 allows for chaining up one or two more Geforce GTX 680 cards, in order to get more performance (for 3D Stereo Vision now is enought to have just one GTX 680 graphics card).

gtx-680-gainward-back

(Page 3 of 8)
Last modified on Thursday, 29 March 2012 23:23
blog comments powered by Disqus

 

Facebook activity

Latest Commented Articles

Recent Comments