Quick question 7990

kunoichia · 26 Sep 2013 at 19:42

Hey there,

Probably buying a 7990 next week.

I see http://www.overclockers.co.uk/showproduct.php?prodid=GX-121-GI
for £469.99 inc VAT

and http://www.overclockers.co.uk/showproduct.php?prodid=GX-084-HS
for £479.99 inc VAT

Just want to know if both cards have the voltage unlocked?

Thanks in advance for answers, if any good input why I should buy MSI or the GIGABYTE one would be appreciated.

Thinking of going for the MSI one as I am from the Netherlands and MSI customer support is in the Netherlands also which would make that easy if I would need to RMA or anything.

Regards,

kun

Simon D · 26 Sep 2013 at 20:26

I have the Gigabyte HD7990 card and the voltage is unlocked.

LtMatt · 26 Sep 2013 at 20:27

All AMD reference designs are voltage unlocked.

~>Dg<~ · 26 Sep 2013 at 20:32

have you got a i7 ?

kunoichia · 26 Sep 2013 at 20:38

i5 2500k @ 4700

LtMatt · 26 Sep 2013 at 20:42

~>Dg<~ said:
have you got a i7 ?

kunoichia said:
i5 2500k @ 4700

Oh this is going to be fun. Kun has never believed me when ive tried to explain how a 2500k can bottleneck a multi gpu setup in some games. Have at it DG.

whyscotty · 26 Sep 2013 at 20:45

LtMatt said:
Oh this is going to be fun. Kun has never believed me when ive tried to explain how a 2500k can bottleneck a multi gpu setup in some games. Have at it DG.

Now that's just plain nasty

LtMatt · 26 Sep 2013 at 20:46

whyscotty said:
Now that's just plain nasty

I've tried Scotty, oh how I've tried.

EDIT

That said, he'll still see a big performance gain over his single 7970 @ 1075/1475 from memory.

whyscotty · 26 Sep 2013 at 20:48

LtMatt said:
I've tried Scotty, oh how I've tried.

EDIT

That said, he'll still see a big performance gain over his single 7970.

And his Gpu's at about 80-85% usage

LtMatt · 26 Sep 2013 at 20:48

whyscotty said:
And his Gpu's at about 80-85% usage

Lower than that. Shankly was getting about 60-90% with 7950's at stock.

whyscotty · 26 Sep 2013 at 20:50

LtMatt said:
Lower than that. Shankly was getting about 60-90% with 7950's at stock.

That bad

LtMatt · 26 Sep 2013 at 20:59

whyscotty said:
That bad

Still a nice performance gain though as that's worst case scenario.

Uncle Petey · 26 Sep 2013 at 21:01

Are we talking just a matter of it not being optimal, or are we talking a matter of it causing issues like stuttering etc?

NoobCannon · 26 Sep 2013 at 21:25

he would prob experience stuttering like symptoms in games like bf3 for example because his cpu wont be able to keep up with the cards so will see 100% cpu usage and a bottleneck

~>Dg<~ · 26 Sep 2013 at 22:18

bf and multicard on i5 no sale kun buy a 780gtx or wait. or i7 and another 7970.

even matt can be right sometimes

LtMatt · 27 Sep 2013 at 07:20

Uncle Petey said:
Are we talking just a matter of it not being optimal, or are we talking a matter of it causing issues like stuttering etc?

NoobCannon said:
he would prob experience stuttering like symptoms in games like bf3 for example because his cpu wont be able to keep up with the cards so will see 100% cpu usage and a bottleneck

Shankly said it was stuttery for him with an i5. Mind you, that may have been before frame pacing. Maybe shankly can confirm? I helped some other dude out in the How to tell if crossfire is working thread the other day. He had a i5 and didn't report any stuttering in bf3. Though his gpu usage was low as we reported earlier. I think he'll be ok, but really he needs an i7.

kunoichia · 27 Sep 2013 at 13:40

Well gpu 1st, cpu can wait

IT Troll · 27 Sep 2013 at 14:25

How would my CPU handle a 7990? It is a six core i7 but old generation.

Nelly · 27 Sep 2013 at 15:41

So... apart from being a single card solution for crossfire, what's the point in buying this when you can get 2 x HIS HD 7950 IceQ BOOST 3072MB for £348, with 2 x Crysis 3, Bioshock Infinite's, 2 x Golden tickets, worth around £100, making the value £125 per 7950...?

NoobCannon · 27 Sep 2013 at 16:07

its a niche card, something for people who want maximum power in a single card and don't have space for x fire.

been tempted to buy a couple of them for xfire a few times tho lol