Gigabyte X3 670 SLI

teppic · 8 Sep 2013 at 12:10

spixelspixel said:
It's not nonsense, my single gtx 670 system with a 2500k never exceeded 230w (total system usage with cpu + gpu 100% loaded) 430w system total with 2 670's + monitor seems about right.

e.g.

http://tpucdn.com/reviews/Gigabyte/GeForce_GTX_670_Windforce/images/power_maximum.gif

Quotes 242W for a single 670 alone overclocked.

670s running at 1300MHz+ will use a lot more power on top.

spixelspixel · 8 Sep 2013 at 12:12

teppic said:
e.g.

http://tpucdn.com/reviews/Gigabyte/GeForce_GTX_670_Windforce/images/power_maximum.gif

Quotes 242W for a single 670 alone overclocked.

670s running at 1300MHz+ will use a lot more power on top.

That's not real world usage. Techpowerups maximum = Furmark

Look at the same review but the Peak/Average readings. 170/153w respectively when overclocked. In normal usage a gtx 670 uses 150w stock and 175w overclocked (AC, actual power usage is lower but depends on the power supplies efficiency)

Snodge · 8 Sep 2013 at 12:13

I'm only going to run my 670's at 1200Mhz core. providing the second one is capable of that

setter · 8 Sep 2013 at 12:16

My single card at +130 core +700 memory, (1320mhz/7506mhz) cpus were an i5 3570k and an i7 3770k both at 4.5ghz, power draw for that was 340w total system draw. I use a 4 plug monitoring unit that has the case and monitor connected to it. If i get a chance later, ill fire up a test such as 3dm11 with my known stable gpu oc of +80/+600 for the pair and measure usage. Currently trying to get the cpu running stable.

spixelspixel · 8 Sep 2013 at 12:17

Snodge said:
I'm only going to run my 670's at 1200Mhz core. providing the second one is capable of that

670's are voltage locked so overclocking has minimal impact on power consumption. The main jump happens once you increase the power target off stock. 100mhz might only add 2-3w.

teppic · 8 Sep 2013 at 12:19

spixelspixel said:
That's not real world usage. Techpowerups maximum = Furmark

Look at the same review but the Peak/Average readings. 170/153w respectively when overclocked. In normal usage a gtx 670 uses 150w stock and 175w overclocked (AC, actual power usage is lower but depends on the power supplies efficiency)

That's no argument - if it can draw that amount in a benchmark taken over a year ago, who's to say it won't do the same in games over the next year or two? Normal use is just that - it's no good for determining what power it may require. If you can run a benchmark on your system and have it fail due to lack of power, you need a better PSU, simple as that.

spixelspixel · 8 Sep 2013 at 12:24

teppic said:
That's no argument - if it can draw that amount in a benchmark taken over a year ago, who's to say it won't do the same in games over the next year or two? Normal use is just that - it's no good for determining what power it may require. If you can run a benchmark on your system and have it fail due to lack of power, you need a better PSU, simple as that.

No game will ever stress a card like furmark or else too many peoples cards will die a painful death. It's just not realistic at all.

Snodge · 8 Sep 2013 at 12:27

I trust RJC and Setter they have first hand experience

illuz · 8 Sep 2013 at 12:37

If you do get that power meter, let us know what your power draw is for some games (Crysis 3, BF3 etc).

I think I'm going to buy one too... Someone donate a Titan to me? No GPU is horrid.

setter · 8 Sep 2013 at 12:48

Ok, ive just ran 3dm11, gpu's clocked at +80 core, +600 memory. Cpu was at 4.5ghz on 1.2625 vcore. Highest i seen on the power monitor lcd was 586w for a second or so when running the first gpu test. This figure also includes my 24" lcd monitor as well, psu is a corsair hx 850w unit.

spixelspixel · 8 Sep 2013 at 12:52

setter said:
Ok, ive just ran 3dm11, gpu's clocked at +80 core, +600 memory. Cpu was at 4.5ghz on 1.2625 vcore. Highest i seen on the power monitor lcd was 586w for a second or so when running the first gpu test. This figure also includes my 24" lcd monitor as well, psu is a corsair hx 850w unit.

Which hx850 do you have? There's a couple of them with different 80plus ratings.

setter · 8 Sep 2013 at 12:55

Mine is the older model, i bought it secondhand on members market about 4 years ago.

spixelspixel · 8 Sep 2013 at 13:00

setter said:
Mine is the older model, i bought it secondhand on members market about 4 years ago.

Probably the 80plus standard then?

If so actual power consumption could be as low as 468w (586x80%) minus a possible 95w for the monitor = 373w total for an overclocked 4770k with 670 sli. Just a guesstimate though

illuz · 8 Sep 2013 at 13:06

Off topic but does anyone know what a Titan with v1.3+ through it pulls?

setter · 8 Sep 2013 at 13:07

Id guess this psu has lost a bit of it's efficiency over the years too, it's had a pretty hard time in the 4 systems ive had it in.

StonedPenguin · 8 Sep 2013 at 13:08

2 670s clocked similer to OP's and a 2500k @ 4.8, gaming pulled around 420-460W at the wall, I think the TX650 will be fine.

spixelspixel · 8 Sep 2013 at 13:10

illuz said:
Off topic but does anyone know what a Titan with v1.3+ through it pulls?

Not sure but the absolute max a titan can draw is 300w (1x8pin + 1x6pin = 225w + 75w from the pci slot)

illuz · 8 Sep 2013 at 13:22

Wicked cheers spixelspixel.

rolypolyman · 8 Sep 2013 at 16:37

There's a thread here where the guys running 3X7970 and it looks like the whole system is pulling 680W. Would have thought 2X670 should be ok with your Psu.

Sasahara · 8 Sep 2013 at 21:37

setter said:
Ok, ive just ran 3dm11, gpu's clocked at +80 core, +600 memory. Cpu was at 4.5ghz on 1.2625 vcore. Highest i seen on the power monitor lcd was 586w for a second or so when running the first gpu test. This figure also includes my 24" lcd monitor as well, psu is a corsair hx 850w unit.

That pretty much matches mine. on 3DM11, 670's @ 1254 Mhz, not sure what the memory OC was, 2600K @ 4.5. Highest from the wall was 510 W, given that my 850 W PSU is slightly more efficient than the HX and no 25" monitor with I would guess 40-60 W, more if it's old. Also my Blackgold BGT3650 Quad DVB-T2 was on too.