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Thursday, 10 November 2011 17:51

Nvidia's GTX 560 Ti 448 detailed

Written by Slobodan Simic

nvidia

Should come on 29th of November


Guys from SweClockers released a full set of spec details regarding the upcoming GTX 560 Ti 448 Cores card. Although it was rumoured for quite some time, there has been almost no talk regarding this card until now.

As far as the specs go, the card fits somewhere between the standard GTX 560 Ti with 384 stream processors and the GTX 570. According to the specs, it appears that the GF110-270-A1 (as the GPU is marked) is more GTX 570 than the GTX 560 Ti, as it features 320-bit memory interface (as opposed to the 256-bit one on the 560 Ti) and will feature same clocks as the GTX 570.

According to the report from SweClockers and previously seen at Techpowerup, the card works at 730MHz for the GPU, 1460 for those 448 stream processors and has 1280MB of GDDR5 memory paired up with a 320-bit memory interface. Of course, GTX 570 will still end up faster due to the fact that it has 480 stream processors, or CUDA cores.

The new GTX 560 Ti 448 comes as response to the AMD Radeon HD 6950 1GB cards and, price wise, it will fit between GTX 560 Ti and GTX 570. The card will need two 6-pin PCI-Express power connectors and should be release on 29th of November. We don't expect any high supply of this card as all the good chips will become GTX 570 and it is possible that the card won't be that easy to find on the market.

You can find more over at SweClockers site.

Last modified on Thursday, 10 November 2011 20:03
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Comments  

 
0 #1 eddman 2011-11-10 23:02
I've been looking for a new card to replace my 8800 GTS 320. If this is true and the price is right, then I know what I'll be buying.

Can't really wait for radeon 7000 or kepler.
 
 
0 #2 dew111 2011-11-10 23:42
Quote:
We don't expect any high supply of this card as all the good chips will become GTX 570



This isn't necessarily true. The GF110 has been in production for a long time now, and they probably have a lot of "not quite good enough for GTX 570" dies lying around. Aside from competing with AMD, this is probably a major factor in releasing a card like this. If the financials make sense, they could also divert some of the GTX 570 dies to this card as well. As such, supply will likely be decent, depending on the demand for it. Demand also may be lower due to the upcoming 28nm releases. Time will tell.
 
 
0 #3 HBeam 2011-11-11 04:42
Oh noes. Another GTX 465 like piece of crap.
 
 
-1 #4 techno 2011-11-11 07:37
^ this
There was a reason they made 460 on a different chip rather than just cutting down the 480/470.
I'd wait to see benchies before committing to this card.
 
 
0 #5 eddman 2011-11-11 09:14
@HBeam and techno
465's less performance compared to 460 wasn't anything surprising. Let's do a simple math calculation:

352 shaders * 1215 MHz = 427680
336 shaders * 1350 MHz = 453600

That shows 460 to be 6% faster than 465, and benchmarks proved it. 460 also has 12.2% higher memory bandwidth.

Now this card and 560 Ti:

448 * 1460 = 654080
384 * 1645 = 631680

This shows 560 Ti 448 to be about 3.5% faster, at least on paper. Given that it'll also have 18.5% higher memory bandwidth, I don't see why it couldn't be faster.
 
 
+2 #6 techno 2011-11-11 10:55
@eddman...what you say is only true to a point...improved performance on the 460 was not simply a clock multiplied by shader calculation. 460 is based on the GF104 chip which is a redesign containing 8 texture units per SM as compared to the 465 which was a GF100 chip with half the texture units per SM...only 4.
As a consequence the texture fill rate of the 465 on a per unit per clock basis is less leading to the card overall having a much reduced fill rate.
To quote anandtec there is diminishing return on cutting down a larger chip especially when you consider the power draw of the cut down chip is similar to its larger parent.
 
 
+2 #7 evolucion8 2011-11-11 17:42
Quoting techno:
As a consequence the texture fill rate of the 465 on a per unit per clock basis is less leading to the card overall having a much reduced fill rate.
To quote anandtec there is diminishing return on cutting down a larger chip especially when you consider the power draw of the cut down chip is similar to its larger parent.


You are right, plus the fact that the GF104 has some superscalar stuff that helps to boost performance when the compiler allows it. That explain why the GF104 based SKU is a bit erratic on performance as it is more sensitive to driver optimizations than the pure scalar approach of the GF100/GF110.
 
 
+1 #8 Cartman 2011-11-12 19:44
So in the end this card is GTX 570, that cant pass as GTX 570 cuz some core doesnt work.

Disable em in BIOS put new sticker and its all good.
 

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