Upcoming GTX 750 Ti tested

[altairauditore]

just wanted to say you can cherry pick benchmarks to show same thing with a 7750 (no 6pin connector):

Nvidia Geforce 640 DDR3 = 50w TDP
AMD 7750 (no 6pin connector) = 55w TDP

Now look at their fps in this benchmark, its over 2x (perf/watt).

Very True, and as you say the GT 640 is bottle necked by it's slow DDR3.. so the core is running at full power but the memory is killing FPS..

But the GTX 650 - GTX 750x - GTX 650Ti is a fairer comparison imo because the memory is the same.. the memory bus is the same .. except frequencies, the only thing different is the core..

Neglecting GTX 650Ti leakage and binning power measurements, the GTX 750 (both Ti and non Ti) still have a very big advantage in terms of perf/Watt..

Even if perf/Watt is not 2x (might be exaggerated for marketing), based on current data it will still be a significant improvement over Kepler

 

[ams23]

The GTX 650 already has equal (or better) gaming perf. per watt compared to HD 7750-800. Note that a TDP rating is not so important, what is important is the actual power consumed while gaming. That said, it is true that GT 640 offers relatively poor gaming perf. per watt at bandwidth-limited settings (for obvious reasons).

GTX 750 Ti is clearly meant to replace GTX 650 Ti in the product hierarchy, so comparisons to GT 640 are really academic at best.

 

[Arkaign]

Any idea on MSRP? It's looking like combo'ing this with 760K will make for some incredibly awesome super cheap gaming boxes.

 

[Arkadrel]

The GTX 650 already has equal (or better) gaming perf. per watt compared to HD 7750-800. Note that a TDP rating is not so important, what is important is the actual power consumed while gaming. That said, it is true that GT 640 offers relatively poor gaming perf. per watt at bandwidth-limited settings (for obvious reasons).

GTX 750 Ti is clearly meant to replace GTX 650 Ti in the product hierarchy, so comparisons to GT 640 are really academic at best.

your right:

650 = 111% perf/watt of a 290x Tri-X OC card.
7750 = 108% perf/watt of a 290x Tri-X OC card.

~2-3% more perf/watt or so for the 650.


Truth of the matter is perf/watt is pretty equal amoung most cards and on both sides of the fence.


Still its promising that the 750ti comes with such small coolers, that makes the 60w TDP seem credible.

Im just not sure about performance yet, if it can match a 260 or come close at only 60w then that is impressive. Waiting for reviews before I believe it though, its borderlineing on too good to be true.

 

[coffeejunkee]

Yep, seems like a dry run of Maxwell design on an old but mature process. It's actually a good idea from a technical perspective, if not that exciting for the enthusiast class.

I suppose in a way it's like Intel's tick-tock, but I think this is the first time we see it with gpu's? There have been same architectures with die-shrinks (9800GT, 4770) but not new architectures on same process.

But what do you think will happen when the full range of 800 series on 20nm happens? Will these 750 cards get a die-shrink too, or will they just get a rebrand? I guess (and hope) a die-shrink but it would depend on capacity too. Nvidia has been using old process for low-end cards before but this card is more midrange.

 

[Arkadrel]

Will these 750 cards get a die-shrink too, or will they just get a rebrand? I guess (and hope) a die-shrink but it would depend on capacity too.

They ll probably get tossed out.

At 20nm they can probably make something with more power, and theres not much reason to have cards weaker than the 75w cap from the PCIe bus, with IGPs constanatly getting stronger.

 

[Mondozei]

your right:

650 = 111% perf/watt of a 290x Tri-X OC card.
7750 = 108% perf/watt of a 290x Tri-X OC card.

~2-3% more perf/watt or so for the 650.


Truth of the matter is perf/watt is pretty equal amoung most cards and on both sides of the fence.


Still its promising that the 750ti comes with such small coolers, that makes the 60w TDP seem credible.

Im just not sure about performance yet, if it can match a 260 or come close at only 60w then that is impressive. Waiting for reviews before I believe it though, its borderlineing on too good to be true.

Small quibble, when it says OC on the Sapphire 290 name in that graph, does it mean factory overclock(i.e. stock card as you get it) or is it custom OC on top of factory OC?

 

[Arkadrel]

Small quibble, when it says OC on the Sapphire 290 name in that graph, does it mean factory overclock(i.e. stock card as you get it) or is it custom OC on top of factory OC?

yep factory overclock.

anyways that chart isnt for performance, its a matter of perf/watt, ei effeciency.


It was just to show that AMD and Nvidia are basically neck by neck, when it comes to perf/watt.


Still im optimist about the 750ti.

 

[Qwertilot]

Has to be a chance they won't get round to chucking it out until 16nm rolls round (fairly fast in theory it seems.). Especially if 20nm is expensive for a bit.

 

[Erenhardt]

your right:

650 = 111% perf/watt of a 290x Tri-X OC card.
7750 = 108% perf/watt of a 290x Tri-X OC card.

~2-3% more perf/watt or so for the 650.

That chart is little misleading.
It shows average gaming performance which includes many different titles, some using optimized game libraries for certain manufacturer. But the power consumption numbers are from crysis2. To better picture is shown by comparing the performance and power consumption under the same load. So, lets:
7750 crysis2 FullHD:

MSI gtx 650 PE (48W for reference design) crysis2 FullHD:

Performance:

So 650 uses 10-20% more power but offers the same (or up to 5% more) performance.

 

[Mondozei]

That chart is little misleading.
It shows average gaming performance which includes many different titles, some using optimized game libraries for certain manufacturer. But the power consumption numbers are from crysis2. To better picture is shown by comparing the performance and power consumption under the same load. So, lets:
7750 crysis2 FullHD:

MSI gtx 650 PE (48W for reference design) crysis2 FullHD:

Performance:

So 650 uses 10-20% more power but offers the same (or up to 5% more) performance.

Nice catch.

 

[ams23]

In terms of gaming perf. per watt, GTX 650 Ti > GTX 650 > GT 640 (see Metro 2033 power consumption and compare to Metro 2033 gaming performance):

http://www.anandtech.com/bench/product/680?vs=681

http://www.anandtech.com/bench/product/681?vs=612

 

[el etro]

HD 7750 uses less(little less) power than GTX 650, but is weaker(sighlty weaker) than the second. http://www.tomshardware.com/reviews/radeon-r7-250x-graphics-card-review,3747-4.html

 

[ams23]

More official slides here: http://videocardz.com/49647/nvidia-geforce-gtx-750-ti-official-specifications-performance . L2 cache size in GM107 is 8x larger than GK107!

Here is a SMM in more detail:

 

[Pottuvoi]

More official slides here: http://videocardz.com/49647/nvidia-geforce-gtx-750-ti-official-specifications-performance . L2 cache size in GM107 is 8x larger than GK107!

Apparently reading/writing needlessly from/to ram increases power consumption.
I would guess that we will see L0 caches as well.

 

[OCGuy]

Very exciting that these improvements are 28nm GM1xx. GM2xx on 20nm in H2 could be special.

 

[dangerman1337]

Very exciting that these improvements are 28nm GM1xx. GM2xx on 20nm in H2 could be special.

With even Nvidia saying H2 at that conference and GM200, GM204, GM206 as well I think one of the three are going to release first, second and then last. I think we'll be seeing a GM204 first in August/September, GM206 September/October and GM200 November/December (probably just a Maxwell Titan and I would not be surprised if we'll see a GeForce 780ti/780 replacement early next year). Though I think we'll hear more at GTC 2014.

I seriously hope at least the GM204 comes before the Witcher 3 releases at least.

 

[Rezist]

They should release 256 bit bus card on maxwell if 20 nm is still far out.

 

[jpiniero]

Hmm, that article mentions that there will be some factory OC cards as well. Up to 1200 MHz. Still 128-bit though.

 

[USER8000]

Reference GTX750 taken apart:

http://wccftech.com/maxwell-gtx-750-massive-leak-pictures-specs/#ixzz2tI8ph62N

It seems to have a PCI-E power connector.

 

[ShintaiDK]

Just a note for those that doesnt know. Alot of OEM PCIe slots only delivers a max of 10W, 25W or 35W and not 75W.

x1 is 10W, can go to 25W.
x16 starts at 25W, can go up to 75W.

 

[Mondozei]

Sweclockers are out with a new article, this time linking to computerbase.de which in turn is linking to leaks on a Vietnamese forum(remember, Vietnam is the place where a lot of these GPUs are manufactured these days).

Maxwell will have 2x the performance per watt. I believe this basically confirms previous speculation in this thread.
However, unlike previous speculation in this thread, which centered around the proposition that we wouldn't see 2x gains/watt until we get to 20 nm, these gains seem to come already at 28 nm.
So, pretty impressive all in all.

Source:

http://www.sweclockers.com/nyhet/18319-geforce-maxwell-ska-fordubbla-prestanda-per-watt

 

[f1sherman]

Coolest looking little cards

 

[ShintaiDK]

But analog VGA in 2014...really?

 

[Arkadrel]

But analog VGA in 2014...really?

Yeah I think its time, they should get rid of that output.
AMD and nvidia both.