7800 and 7900 - difference ?

Mr Spoon · 6 Jul 2006 at 14:06

is there any difference other than clock speeds ?

MeatLoaf · 6 Jul 2006 at 14:09

4 extra pipes and an extra vertex shader i think.

Semiskimmed · 6 Jul 2006 at 14:12

are on about both series GT's?
the 7900gt is very similar to a 7800gtx if youre compring across both series

Mr Spoon · 6 Jul 2006 at 14:13

was looking for technical differences not performance differences.
thanks

Aidoscuz · 6 Jul 2006 at 14:20

The 7900 series has less transistors and runs cooler as well as having higher clock speeds. They also don't work, if the amount of faulty 7900GTXs and GTs is anything to go by. If you're upgrading steer well clear of them and go for an ATI X1900 instead.

Mr Spoon · 6 Jul 2006 at 14:38

ive just bought a 7950 GX2

think i need a new motherboard (current in sig).

Jabbs · 6 Jul 2006 at 14:40

The main difference between the 2 is the 7800gtx works properly

Semiskimmed · 6 Jul 2006 at 14:40

youre mobo should be fine, its sli enabled afterall. and fear not, the 7950 uses 2 7900go gpu's afaik so theres nowhere near as many going faulty.

Aidoscuz · 6 Jul 2006 at 14:42

You should be alright with the 7950, I haven't seen any issues with them yet. It's the 7900 series that are broken I think. Also I don't think you need an SLi motherboard for the GX2, can anyone confirm this?

senorstealth · 6 Jul 2006 at 14:52

nvidia.com said:
With a properly configured SBIOS, the NVIDIA® GeForce® 7950 GX2 will work with any PCI Express-compliant motherboard. Please see www.nvidia.com/GX2 for a list of compatible motherboards and SBIOS that have been tested by NVIDIA.

Though i thought the two cores were connected using some form of SLi, but i could be wrong

pegasus1 · 6 Jul 2006 at 14:53

Jabbs said:
The main difference between the 2 is the 7800gtx works properly

Ha

.

senorstealth · 6 Jul 2006 at 14:55

Jabbs said:
The main difference between the 2 is the 7800gtx works properly

pegasus1 said:
Ha Ha Ha .

Second that mine runs nicely

PinkFloyd · 6 Jul 2006 at 14:55

senorstealth said:
Though i thought the two cores were connected using some form of SLi, but i could be wrong

It does connect via SLI. but I think they did something so it works in non SLI motherboards....

Havent seen anyone confirm whether this will work in non-sli motherboards yet
:\

My 7900GT works lovely

Mr Spoon · 6 Jul 2006 at 14:57

yea my motherboard is not on the list (boohoo), Ive just installed the latest BIOS, set the jumpers to normal/single mode instead of SLI and Windows wont boot ! :confused:

before I installed the latest BIOS it worked but only on 1 card (GPU) which gave less performance than my 7800GTX SLI setup did.

LoadsaMoney · 6 Jul 2006 at 15:12

Yeah 7900's have got a built in kill switch, over time they die, could be seconds/hrs/minutes etc.... trouble is they don't say on the box how long the kill switch has been activated to last for, so you have to take a chance, and hopefully you' get one thats set to die after a week instead of a day or a couple of minutes.

As well as all the other differances theres also 100.

ihatelag · 6 Jul 2006 at 15:33

Sounds interesting, but I haven't seen anyone here (in OcUK) have any problems with 7900's dieing out??? Or did I miss something lol :eek:

MeatLoaf · 6 Jul 2006 at 15:51

ihatelag said:
Sounds interesting, but I haven't seen anyone here (in OcUK) have any problems with 7900's dieing out??? Or did I miss something lol

Theres loads of threads about in GFX card section.

Aidoscuz · 6 Jul 2006 at 16:03

ihatelag said:
Sounds interesting, but I haven't seen anyone here (in OcUK) have any problems with 7900's dieing out??? Or did I miss something lol

They're all over the place... Have a look about four threads below this one, I've just posted one. Here's a few:

http://forums.overclockers.co.uk/showthread.php?t=17597010
http://forums.overclockers.co.uk/showthread.php?t=17584610
http://forums.overclockers.co.uk/showthread.php?t=17595423
http://forums.overclockers.co.uk/showthread.php?t=17595364
http://forums.overclockers.co.uk/showthread.php?t=17590862
http://forums.overclockers.co.uk/showthread.php?t=17591915

And there's more...

LoadsaMoney · 6 Jul 2006 at 19:01

Yup 7 series are borked, even Nvidia says so.

pegasus1 · 6 Jul 2006 at 19:42

LoadsaMoney said:
Yup 7 series are borked.

Delete 7 Series
Insert 7900 Series
My Leadtek 7800gtx 256 is running sweet at 520/1.37 at 35C idle on O2
If i ever grow the grissle to volt mod it, it will fly.