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View Full Version : Why does my Geforce 6800 PCI-E performance suck so bad?


Tcide
03-02-05, 11:10 PM
I recently purchased a 256mb Leadtek GF 6800TDH video card and the performance is terrible in anything D3d, OpenGL isnt too bad, whats the deal, I had a dual 6600GT PCI-E SLI configuration that even with just 1 card enabled did a much better job in most apps than this $399.00 card is doing... If I cant get any better performance, I will return it WAIT a long time and get a 6800GT whenever they get to Austin Texas..
CONFIG:
Athlon64 3500+ socket 939, 1gb Corsair Platinum series Twinx PC3200 ram, Asus A8N-SLI Deluxe motherboard, Leadtek Geforce 6800 TDH 256mb DDR1 video card, 3 Seagate Cheetah Ultra-320 SCSI hard drives RAID 0, LSI Logic U320 SCSI RAID controller.

jAkUp
03-02-05, 11:13 PM
Which drivers are you using? When was the last time you did a fresh reformat? Are the nVidia motherboard drivers installed?

Tcide
03-02-05, 11:30 PM
Ver 75.90 Beta drivers, all motherboard drivers are installed, overclocked with Riva Tuner, Running Windows Server 2003 with all but needed processes disabled.

jAkUp
03-02-05, 11:36 PM
Have you tried running at stock? Sometimes when you overclock the card too high, it will automatically downclock to keep from damaging itself...

MUYA
03-02-05, 11:58 PM
Sounds a bit like driver installation problems etc when moving cards..yes even between NV card ...

Lash444
03-03-05, 10:30 AM
kekeke...i bet i know why
You do know that a lot of times when you install a card under 2003 that it sets your video cards abilities to a low setting for greater stability right?
Right click on your desktop and go to properties. Click on the tab that says troubleshooting. Make sure the slider is set all the way to the right. If it isn't, then do so and reboot.
When windows loads, load up dxdiag from the run prompt. Check to make sure that all directx settings are enabled and working. Check out the sound tab and make sure that that is also fully set to the right so that performance is at its maximum.
Get used to checking these issues out each time you install either a new video card driver or no sound card driver. The steps you take during installation plays a part in whether or not the sliders go back into a stability mode, or stay in the last mode you selected. Let us know if this helps.

Rollo
03-03-05, 06:36 PM
I recently purchased a 256mb Leadtek GF 6800TDH video card and the performance is terrible in anything D3d, OpenGL isnt too bad, whats the deal, I had a dual 6600GT PCI-E SLI configuration that even with just 1 card enabled did a much better job in most apps than this $399.00 card is doing... If I cant get any better performance, I will return it WAIT a long time and get a 6800GT whenever they get to Austin Texas..
CONFIG:
Athlon64 3500+ socket 939, 1gb Corsair Platinum series Twinx PC3200 ram, Asus A8N-SLI Deluxe motherboard, Leadtek Geforce 6800 TDH 256mb DDR1 video card, 3 Seagate Cheetah Ultra-320 SCSI hard drives RAID 0, LSI Logic U320 SCSI RAID controller.

WTH?

1. Why would you expect one Leadtek 6800TDH to perform on par with 6600GT SLI? The fillrate is the same as ONE 6600GT, the memory bandwidth is about 25% higher, and you have double the RAM. Your 6600GT SLI should be faster at anything that doesn't overload it's 128 MB framebuffer. (e.g. 16X12 4X8X)


2. $399 for a 6800TDH? I just bought two at newegg for $239 each as refurbs (work fine, full retail pack, woot for the 'egg) and new ones were only $299.?

3. D3d? Shouldn't matter, I'm getting excellent HL2 performance in SLI. Again, you have to realize it will be slower than the 6600GT SLI you had.
http://www.firingsquad.com/hardware/msi_nx6800/page8.asp (6600GT SLI smoking a 6800NU in Far Cry)

I think your problem is that you apparently didn't know it would be a significant downgrade to go from 6600GT SLI to one 6800NU. You can save the situation by getting another NU though, or you could buy a GT for $420 or so.

BTW I have a 6600GT SLI set, a 6800NU SLI set, and a 6800NU AGP, have benched all of them much, would not lie to you. :angel:

nrs421
03-04-05, 07:28 AM
also dont forget to use driver cleaner before you install the new drivers...

Tcide
03-05-05, 03:20 AM
To Lash444, yes I know about 2003 defaulting hardware performance to minimum, it wont even create the nv-settings control panel applet unless u set it something.. of course I set it to full. and write combining is checked too.
I was not aware of that firing squad article Rollo , I would have a GT already, but I REALLY dont like buying hardware (especially video cards-had 2 really bad experiences in the past with defective cards out of the box and online returns are a bitch) online, and noone in my city of Austin Texas has PCI-E GTs yet, I am a Tech at Frys and Im waiting on them to get them (they will be the 1st in town anyway). The DM in computer dept keeps telling me "well get them next week", and has been for a month now. :mad: anyway, thanx for the heads up guys

duggs
03-05-05, 07:21 AM
Hey !

GET RID OF THOSE DRIVERS STRAIGHT AWAY.

There are reports that they cause your GFX Card to run VERY VERY hot..

I did the same as you, used the 75.90 drivers and the temp of my card shot up to over 70 and that was on idle....gaming caused major errors.

Try the 66.76 a or b drivers.

BUT don't use the 75.90's ...

rewt
03-05-05, 06:27 PM
And don't use Server 2003 for gaming, if you can help it. I found XP to be a much better gaming OS. Maybe because the drivers are more mature for XP.

bizzoshaker
03-06-05, 01:32 PM
im using the 71.84XG, fixed my stuttering issue in hl2 and gained like 40 fps in vst lol. only problem thought is the temp bug, shoots to 70, i gotta oc to 402 then underclock, goes back to 55-59c

Tcide
03-08-05, 12:43 PM
BTW... I really dont see how the 6800 is a downgrade from a 6600GT,
6600gt 8 pipes, 128mb, 128bit memory bus, maybe faster ram
6800 12 pipes, 256mb, 256bit memory bus, DDR1 ram

Rollo
03-08-05, 01:40 PM
BTW... I really dont see how the 6800 is a downgrade from a 6600GT,
6600gt 8 pipes, 128mb, 128bit memory bus, maybe faster ram
6800 12 pipes, 256mb, 256bit memory bus, DDR1 ram

You're right, that would be an upgrade.

What the OP did was go from 6600GT SLI to one 6800NU.

6600GT SLI is always faster on games that support SLI than one 6800NU.

Tcide
03-09-05, 01:33 AM
yes but my whole point of this post was that with NO SLI enabled, utilizing just one card.. 1 of my 6600GTs was way faster in D3D than this new 6800 card.. which makes me very hesitant to SLI it if Im only going to get nominal performance from 2 6800 cards in D3d, the 6800GT is sounding like a good option. This is a try b4 buy deal since I have 30 days to return this card. If my store gets 6800GTs in within the 30 days, Im buying one

Rollo
03-09-05, 08:04 AM
yes but my whole point of this post was that with NO SLI enabled, utilizing just one card.. 1 of my 6600GTs was way faster in D3D than this new 6800 card

Sorry to disagree, but that's impossible.

The 6800NU is the same design as the 6600GT, and it has the same fillrate, more memory bandwidth. The 6600GT has 3 vertex processors, the 6800NU has 5 vertex processors.

The only way one 6600GT could be faster at anything is if your testing is flawed or your 6800NU is defective.

Sorry, that's all there is.

mcolbourn
03-09-05, 09:22 AM
Tcide
You say it runs wose how much worse have you got any figgers. I know there was mentionm of over heating, is it that the card heatsink is not attached correctly and the GPU is clock throttling.

Also a bit of an over kill but what about trying format and clean re-install?

Tcide
03-15-05, 04:18 PM
Well, Im going to sort of shut up here.. I overclocked my card to 420mhz/820mhz using Ntune and I am in awe of the performance gain.. everything runs SOOOO much better than it did using stock settings like 5-10fps or better in most apps.. I will definitely be buying another 6800 for my SLI setup! :cool: