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Tuesday, July 31, 2012

Nvidia Geforce GTX 660 Ti Specifications and Launch Date Rumored

Nvidia set to release its new Kepler-based GTX 660 Ti, replacing the GTX 560 Ti. originally reported that the GTX 660 Ti would not hit the market until Q3, but now all signs point to an August 16th release. Nvidia could be using the upcoming GamesCom event as the stage to release its new card.
SpecificationGeforce GTX 660 TiGeforce GTX 670
ArchitectureKeplerKepler
Technology28 nm28 nm
GPUGK104 (?)GK104
CUDA cores1344 1344
Base frequency915 MHz915 MHz
Boost Frequency980 MHz980 MHz
Memory Bus192-bit256-bit
Amount of memoryGB 2 GDDR5GB 2 GDDR5
Memory Frequency6008 MHz6008 MHz
TDP150 W170 W

The GTX 660 Ti looks to be basically the same card as the GTX 670, except with 192-bit memory bus and a lower TDP of 150 W. It is based on the Kepler architecture with 1344 CUDA cores (192*7), and equipped with four video outputs (two DVI, HDMI and DisplayPort), and is powered via two 6-pin PCI Express connectors. We got an early glimpse of what a stock Evga GeForce GTX 660 Ti card looks like from a leaked image coming from Expreview. by doug crowthers source sweclockers
Image Leaked by: Expreview

 
 
 
 
 

Monday, July 30, 2012

EVGA GTX 680 CLASSIFIED HANDS-ON

We have recently received several different GeForce cards covering a range of performance levels, prices, and cooler configurations. Over the next couple of weeks we’ll be taking a look at such GTX 670 and GTX 680 cards from Asus, EVGA, MSI, and Zotac. NVIDIA is going through a period of tight control over their partners’ designs, but this hasn’t stopped their partners from putting their own unique touches on their cards.
Nowhere is this embodied more than with our first card, EVGA’s GeForce GTX 680 Classified. In EVGA’s product hierarchy the Classified is their top of the line product, where they typically go all-out to make customized products to scratch the itch of overclockers and premium buyers alike. The GTX 680 Classified in turn is EVGA’s take on a premium GTX 680,What has EVGA seen fit to do with their fully-custom GTX 680, and does it live up to the hype and the price tag that comes with the Classified name? .

EVGA GeForce GTX 680 Condensed Product Lineup
EVGA GTX 680 ClassifiedEVGA GTX 680 FTW+EVGA GTX 680 SCEVGA GTX 680
Stream Processors 1536 1536 1536 1536
Texture Units 128 128 128 128
ROPs 32 32 32 32
Core Clock 1111MHz 1084MHz 1058MHz 1006MHz
Boost Clock 1176MHz 1150MHz 1124MHz 1058MHz
Memory Clock 6.008GHz GDDR5 6.008GHz GDDR5 6.208GHz GDDR5 6.008GHz GDDR5
Memory Bus Width 256-bit 256-bit 256-bit 256-bit
Frame Buffer 4GB 4GB 2GB 2GB
Price $659 $629 $519 $499

NVIDIA usually turns out solid reference card designs. For their high-end single-GPU cards NVIDIA typically uses balanced designs that are reasonably quiet, reasonably cool, and have some degree of overclocking potential. On the other hand NVIDIA also tends to go conservative in some ways, with NVIDIA favoring blowers so that their reference cards work in most cases, and rarely overbuilding their cards in order to keep the manufacturing cost of the card down.
This is where custom cards come in. NVIDIA’s reference which leads to their partners creating custom products not only to differentiate themselves from each other, but to target specific niches that the reference design doesn’t do a good job of covering. Even just replacing the cooler while maintaining the reference board – what we call a semi-custom card – can have a big impact on noise, temperatures, and can improve overclocking. But at the end of the day there’s only so much you can do with NVIDIA’s reference boards, particularly when it comes to form factors and overclocking. This leads us to fully-custom cards.

Crysis, Metro, DiRT 3, Shogun 2, & Batman
Since the GTX 680 Classified doesn’t bring anything new to the table architecturally, we’ll keep our commentary on its stock performance brief. At stock it’s much like any other overclocked GTX 680 (factory or otherwise), with the only real room for differentiation being the greater amount of RAM and the higher power target. In practice the greater amount of RAM doesn’t make much of a difference in our single-GPU tests, as that much RAM is far more beneficial for the ultra-high resolutions of multi-monitor gaming, at which point you’re going to need a second card to provide the necessary horsepower.
The higher default power target on the other hand is quite interesting. The GTX 680 Classified will hit its top boost bin almost all of the time thanks to the generous power target, something the reference GTX 680 can have trouble with even at stock. So although reference cards can be overclocked to this level, it doesn’t necessarily mean they’ll match the GTX 680 Classified’s boost clocks in that state.
Starting off as always in Crysis, there’s actually not much to see. Since the reference GTX 680 is already memory bandwidth limited here and since the GTX 680 Classified doesn’t have a memory overclock, the factory core overclock does very little for its performance here.







Batman on the other hand doesn’t do the GTX 680 Classified any favors, which is a bit odd. 3-5% just isn’t what you expect here, since there’s no real evidence that the game is CPU or memory bandwidth bottlenecked.

FINAL THOUGHTS

 out of the box the GTX 680 is a very impressive card. EVGA’s various touches such as 4GB of RAM, a larger cooler, a factory overclock, and of course additional VRM circuitry that leads to a higher stock power target, all serve to make the GTX 680 Classified a clearly better card than the reference GTX 680. Furthermore thanks in large part to EVGA’s binning there’s even more overclocking headroom to play with, leading us to reach a 1211MHz core clock without ever increasing its voltage. It’s a very good – if very expensive – GTX 680.by ryan smith




AMD Radeon 7990 Delayed

AMD’s Radeon 7990, which was supposed to be launched at Computex according to information obtained by Hardware Canucks, has been apparently delayed again and pushed back until August according to a report by VR-Zone.
 the reason for the delay is a shortage of PEX8747 PCI-e bridge chips manufactured by PLX – which are an essential component every dual-GPU card including NVIDIA’s GTX 690.
While the PCI-e bridge shortage is certainly a plausible scenario, the delay could not be caused by part shortages but rather a decision by AMD to strategically keep the card out of channel to better position it against the competition. NVIDIA is likely planning an August launch for its GTX 660TI and the GTS 650.by sam reynolds

Thursday, July 26, 2012

XFX Radeon HD7850 2GB Black Edition

 AMD Released Radeon HD7850 and HD7870 of video cards to the market, and now we’re going to be taking a look at XFX’s Radeon HD7850 DD Black Edition. XFX has decided to take the 7850 design, overclock it, and put on a pretty beefy cooler. Instead of your reference clocks of 860Mhz on the core and 1200Mhz memory clocks, the Black Edition card features 975Mhz on the core and 1250Mhz memory clocks.
 
I was very pleased with the performance of the XFX 7850 Black Edition. Their Dual Dissipation cooling system seems to be very effective, as it was able to keep our test card at a very reasonable 69 degrees Celsius at full load. The Ghost Thermal Technology allows the air of the fans to push through the fins of the heatsink down onto the PCB and VRMs to ensure proper cooling all the way around. The 28nm fabrication process also aided in the temperatures being so low, but it's most noticeable difference was found when we did our power draw tests. With the XFX 7850 Black Edition only drawing 260 watts of power at full load, it's safe to say it's very power efficient as well!

The makeup of the XFX 7850 Black Edition was  similar to their previous Black Edition cards.I like the design behind these cards. The brushed aluminum shroud and name plate make for something that is far from the usual design you see on reference cards.

The performance of the XFX 7850 Black Edition isn't too much different from your average run of the mill 7850, but with it's excellent cooling options we were able to overclock our card pretty far. Managing to get the card to 1200MHz on stock cooling, without any voltage control, was rather impressive to me. I'm pretty confident that if we had some sort of voltage control we could have taken the XFX 7850 even further!

With a market that has so many graphics cards to choose from, it's easy to get overwhelmed and not know what is worth the money and what isn't. As I said earlier, the XFX Black Edition 7800 cards are getting a little harder to find, so if run across one it may be your only chance to get one!

Thursday, July 19, 2012

SAPPHIRE TOXIC HD 7970 GHz Edition 6GB GDDR5

SAPPHIRE HD 7970 6GB TOXIC Edition is based on the latest HD 7970 GHz Edition GPU from AMD, together with a host of industry first and exclusive features to deliver maximum performance. Its unique 6GB frame buffer is a World first for a consumer graphics card and makes the TOXIC Edition ideally suited to multi-screen gaming as well as providing the extra memory required for demanding professional applications such as content creation, video editing or rendering.

 By default, the HD 7970 6GB TOXIC Edition runs at 1050 MHz and dynamic boosts to 1100 MHz on the engine with the memory clock at 6000 MHz effective. By pressing the new SAPPHIRE exclusive Lethal Boost Button,boosting the core clock speed to 1100 MHz with dynamic boost to an industry first of 1200 MHz on the engine while the memory is further overclocked to 6400 MHz Effective. The fan profile and PowerTune limit is also changed to performance settings. In addition, users will be able to individually tune the card with SAPPHIRE TriXX, the company’s free to download software tool that allows key parameters to be adjusted for maximum performance.by sapphiretech.com

AMD Radeon HD 7990 to have 6GB GDDR5 Ram?

AMD's Radeon HD 7990 dual-GPU card is expected to arrive in  Q3 2012. This model will feature a total of 4096 stream processors and a whopping 6GB of GDDR5 memory. according to a slide published by Donanim Haber, and will most probably be built using two Tahiti XT graphics cores which will be linked together via CrossFireX.
If AMD will indeed go for the Tahiti XT, this could mean that the card will include 62 Compute Units for a total of 4096 stream processors, 256 texture units and 64 ROP units.

Each one of the two GPUs will also feature a 384-bit wide memory bus that will be connected to 3GB of GDDR5 video buffer, delivering a whopping 6GB of VRAM on a single graphics card.

The clocks that the memory chips or the two GPUs will run at are unknown, but most probably AMD will have to go lower than the 925MHz/1.375GHz (5.5GHz effective) frequencies used for the HD 7970 in order to decrease the power consumption and the heat output of this dual-GPU monster.

Tuesday, July 17, 2012

AMD Radeon HD 7990 Coming In Late July??

AMD is getting ready to release its dual-chip flagship graphics card code-named New Zealand sometime in late July. The device will not only be late to market as its main competitor, the GeForce GTX 690, has been available for over two months now, but will also be launched in limited quantities. Still, for the fans of the Radeon, AMD is rumoured to prepare a 12GB version of the graphics card.
AMD Radeon HD 7990 graphics card is expected to carry two Tahiti XT Radeon HD 7970 graphics processing units GPUs and 6GB of GDDR5 memory onboard. Thanks to two AMD Tahiti XT graphics chips, the dual-chip graphics solution will have 4096 stream processors, 256 texture units, 64 render back ends and so on. The novelty will have some kind of Turbo mode that will clock the chips higher when thermal design power allows as well as will probably support certain exclusive features in order to clearly distinguish itself from Nvidia Corp's GeForce GTX 690. What is surprising is that AMD is working on a special version of the graphics card with 12GB of high-speed GDDR5 memory onboard, reports VR-Zone web-site.
now rumoured that the code-named New Zealand dual-GPU flagship from AMD will be available only in limited quantities in July. Given the fact that the price of the graphics card is unknown, just like exact specification, it is unclear how exactly limited the availability will be. For example, the demand for GeForce GTX 690 for $999 is clearly not as high as it was on the Radeon HD 6990 for $699 a year ago, hence, there is no need to make them in huge quantities.
Based on unofficial information, AMD intended to launch its Radeon HD 7990 sometimes in the second quarter of this year, just in time to compete face-to-face against GeForce GTX 690. But AMD preferred to change its plans, delay the dual-chip flagship product and re-launch Radeon HD 7970 with 1GHz GPU clock-speed in June instead.