2 X Sli GTX560ti - good performance?

Nova Swing · 19 Oct 2013 at 14:24

Hi all,

I'm looking for a little advice and hope someone can help.

I want to inject a little more graphical performance into my system without splashing out too much, so I'm thinking of trying to find a second hand GTX560ti 2048mb card for sli (to match my current card of course).

My CPU is an i7 2600k with an OCUK overclock (4.2 I think) and I believe the current card is also OC'd. (Is this an issue with SLI?)

It runs BF3 on Ultra at a good framerates but the BF4 beta was a little dissapointing graphically. So i want more power.

So instead of spending £200 on a new generation mid-range card, I want to try SLI.

Based on my CPU, do you think its's worth trying it? Will I see a significant performance boost? Second hand 2gb 560ti seem to go for around £80, but they are quite rare (stupidly went 2gb when not really needed when I bought the PC).

The PC is one of Overclocker's old BF3 commander packages and I made sure the PSU and MB were ok for SLI when I bought it.

If general consensus is that SLI isn't worth it, what kind of card am I looking at these days to run BF4 on high ultra. Can I do it for less than £200?

Thanks...

almighty15 · 19 Oct 2013 at 14:31

I would just sell up and buy a newer card...

You'll end paying over the odd's for a second 2Gb 560ti because of how rare they are.

Would be much cheaper and better to just sell what you have and get a 7950.

Nova Swing · 20 Oct 2013 at 17:28

Thanks for the reply. 2gb 560ti seem overpriced second hand (one just went for £80 on ebay). I'll take a look at the 7950, seem to be popular with posters on here.

Winnter · 20 Oct 2013 at 17:43

what resolution are you playing at? im on 2560x1440 and my 560 ti is doing great for resolution!not sure about battlefield 4 yet,but i will be buying it.

humbug · 20 Oct 2013 at 17:50

A 7950 would be faster than 2x 560TI SLI

Kyle1987 · 20 Oct 2013 at 19:22

I had two msi gtx 560ti in sli both overclocked as much as possible and got a 3dmark 11 of round 9000.

I then sold up and got a single msi gtx 670 power edition and got 9700 standed before over clocked.

I would deffo get a newer card like 670 min or go to 760 770 ect if staying with nvidia

spixelspixel · 20 Oct 2013 at 20:10

humbug said:
A 7950 would be faster than 2x 560TI SLI

The 560ti's would beat a 7950 with ease in most games.

nicnik · 20 Oct 2013 at 20:46

What resolution? If it's 1080p then you might want to just consider getting another 1gb 560ti, that is probably the cheapest option. (£50 approx or less).

almighty15 · 20 Oct 2013 at 21:00

spixelspixel said:
The 560ti's would beat a 7950 with ease in most games.

No they wouldn't dude....a 7950 would have the upper hand and would flat out trash a pair when overclocked.

spixelspixel · 20 Oct 2013 at 21:35

almighty15 said:
No they wouldn't dude....a 7950 would have the upper hand and would flat out trash a pair when overclocked.

I had 2 gtx 570's which stock vs stock beat my 670 handily (up to 50% majority of the time)

Wouldn't make sense then that a 7950 would be faster than 2 560ti's as long as the 1gb vram isn't limiting performance. I'd put them ahead by at least 20%

almighty15 · 20 Oct 2013 at 22:02

They aren't 570's though are they?

A7950 on las test drivers is faster.... It's amazing just how much the card has come since release.... It's gone be barely beating a 580 to beating a 670...

decto · 20 Oct 2013 at 22:12

I've just swapped out a pair of 2GB 560TI's for a GTX680 on the very cheap deal a few weeks back.

I originally got the TI's as they were a lot faster for the same outlay as a single 580.

Performance metrics indicate they perform similar to a 670 (perhaps a little less) in games with good SLI scaling.

Personally I wouldn't know if a game was running on SLI 560TI's or the 680 without an fps counter in the corner. Both can run on comparable settings.

Personally, make the most of the good price of the 560TI 2GB and sell it on while you can. Pick a good single card, 670 / 7950 or a little upgrade if you can.

SLI 560TI's are noisy and power hungry for the performance, a few years back when they were as fast as you could go for £400 .... yes ... now a single card is a better bet.

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humbug · 20 Oct 2013 at 22:49

spixelspixel said:
I had 2 gtx 570's which stock vs stock beat my 670 handily (up to 50% majority of the time)

Wouldn't make sense then that a 7950 would be faster than 2 560ti's as long as the 1gb vram isn't limiting performance. I'd put them ahead by at least 20%

One 7970 GE is as fast as a GTX 590 / 6990, a single 7950 is 5% slower than a 7970 clock for clock.

even these results are on old drivers http://www.anandtech.com/bench/product/975?vs=768

spixelspixel · 20 Oct 2013 at 23:01

almighty15 said:
They aren't 570's though are they?

A7950 on las test drivers is faster.... It's amazing just how much the card has come since release.... It's gone be barely beating a 580 to beating a 670...

No they aren't but did I say they were?

Where's the proof a 7950 is now better than a 670? All reviews I've seen of the recent 760 show it beating the 7950 and its slower than a 670.

spixelspixel · 20 Oct 2013 at 23:05

humbug said:
One 7970 GE is as fast as a GTX 590 / 6990, a single 7950 is 5% slower than a 7970 clock for clock.

even these results are on old drivers http://www.anandtech.com/bench/product/975?vs=768

Is this meant to prove a 7950 is faster than 2 560ti's ?

JonSmith · 20 Oct 2013 at 23:10

spixelspixel said:
Is this meant to prove a 7950 is faster than 2 560ti's ?

It unarguably proves a 7950 is faster than 2x 560ti. Since a 590 is made of two GTX580s, a 7970 is either on par or faster than a GTX590 and a 7950 is at worst 10% slower than a 7970, it's a nobrainer.

And that is with the year old drivers, the GCN cards are way faster now.

decto · 20 Oct 2013 at 23:10

humbug said:
a single 7950 is 5% slower than a 7970 clock for clock.

A 7950 has 12.5% less stream processors. Unless AMD has some really poor optimizations a 7950 will have a greater deficit than 5%

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spixelspixel · 20 Oct 2013 at 23:16

JonSmith said:
It unarguably proves a 7950 is faster than 2x 560ti. Since a 590 is made of two GTX580s, a 7970 is either on par or faster than a GTX590 and a 7950 is at worst 10% slower than a 7970, it's a nobrainer.

And that is with the year old drivers, the GCN cards are way faster now.

No it isn't. A 590 is slower than two 570's. The graph uses 2560x1440 resolution maxed out which will affect the 590's performance. Also, who knows what drivers the 590 is using?

Uncle Petey · 20 Oct 2013 at 23:19

decto said:
A 7950 has 12.5% less stream processors. Unless AMD has some really poor optimizations a 7950 will have a greater deficit than 5%

It varies slightly between titles, but it's a rough guide and close enough.
I believe it's between 5 and 10% at matching clocks.

This has been shown multiple times here

humbug · 20 Oct 2013 at 23:22

decto said:
A 7950 has 12.5% less stream processors. Unless AMD has some really poor optimizations a 7950 will have a greater deficit than 5%

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Doesn't work like that, Stream Processors are only half the GPU, if that, ROP's, ACE units, Memory all play a part.

Overclock your GPU core, you will get about 40 to 50% performance scaling, overclock the memory, you will get about 30 to 40% performance scaling.