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Sapphire 7870 lower FPS than EVGA 460GTX in DiRT3???

4

4myrig

Junior Member
Hi Guys!
Ive just upgraded my graphics card from a EVGA 460GTX SC to a Sapphire 7870 Ghz edition :biggrin:. I used FRAPS to benchmark my two cards in a few different games.

(all settings on highest possible)
In DiRT3 I averaged:
134 fps with 460GTX
and
100 fps with 7870
(Most other games showed a good improvement over the 460GTX)

Doesn't make sense to me!! I mean in anandtech bench's the 460 is smashed by the 7870!! :twisted:

Is this possibly because DiRT3 in not optimized for the new 78XX series?? :hmm:

My rig:
M.B: Gigabyte GA-Z77X-UD3H
CPU: Intel Ivy Bridge 3570k @ 4.6ghz
GFX card: Sapphire HD 7870 Ghz Edition
RAM: Corsair Dominator 8gb (2x4gb)
HD Samsung F3 1TB
Monitor: Acer 32" 720p HD @ 1360x768
 
Last edited:
Jaydip said:
Check this,7870 is averaging ~168 Fps in 1680*1050
http://www.techpowerup.com/reviews/Zotac/GeForce_GTX_670_Amp_Edition/15.html
What settings u are using in Dirt3?
Click to expand...

here are the settings i use in dirt3:
screen res: 1360x768 (low I know)
multisampling: 8xMSAA
vsync: off
(all detail are set on as high as possible)

I do get this error message every time I boot to windows

"Kdbsync.exe has stopped working"
I can check online for a solution (pointless i know)
or
Close the program

I know this has something to do with ati graphics drivers?
 
Update: Fixed issue of "Kdbsync.exe" removed all ati drivers.etc re-downloaded software and installed.

Still experiencing lower than expected performance 🙁
 
4myrig said:
Update: Fixed issue of "Kdbsync.exe" removed all ati drivers.etc re-downloaded software and installed.

Still experiencing lower than expected performance 🙁
Click to expand...
"Kdbsync.exe" has to do with Accelerated Video Transcoding for AMD cards.U can check this for more info
http://developer.amd.com/afds/assets/presentations/2146_final.pdf
Uninstall ur drivers once more and use driver sweeper to remove all traces of amd drivers.Now reinstall the drivers and report back.Check this thread as well
http://www.overclock.net/t/1236250/amd-avt-folder-and-kdbsync-exe
 
will try that and report back, (p.s im almost ready to go to sleep now, will report back in the morning) thanks very much for your help! hope we can figure this out!!
 
Honestly, when you are getting these FPS, I wouldn't worry nor rely on them. Use Crysis 1, Crysis 2, BF3, Alan Wake, 3D Mark 2011 etc. If all are fine, then you are good to go 🙂
 
Last edited:
Guovssohas said:
When you have framerate in the 100+ range, does it really matter?
Click to expand...

If you have that much of a discrepancy though, it's nice to know why. It could be hurting performance elsewhere.

The "Kdbsync.exe" issue could be caused from a borked driver install. You might try reinstalling the drivers.
 
Run a few other benchies, which are real benchmarks, like Crysis games, metro, gta iv, 3d mark etc. If each of them is fine, then it is just Dirt 3/the game
 
That probably isn't MSAA, just FXAA. With 1440p MAX and 4x MSAA, I get around 80 FPS or so with 2600k OC plus 7970 OC. So what he gets is probably normal with MSAA. You are probably just considering FXAA.
 
aaksheytalwar said:
Acc to this you should just get 93 FPS with 7870
http://www.anandtech.com/bench/GPU12/381
Click to expand...

That isn't the same resolution.

I'd investigate it too if I were him, I hate it when my Rig doesn't perform to my expectations.

EDIT: After reading Giant's other thread, is it possible he shoudl try using the beta/launch driver? Maybe AMD did break something with newer drivers and they just haven't fixed it.

I'm still using like 12.2 or something myself.
 
aaksheytalwar said:
That probably isn't MSAA, just FXAA. With 1440p MAX and 4x MSAA, I get around 80 FPS or so with 2600k OC plus 7970 OC. So what he gets is probably normal with MSAA. You are probably just considering FXAA.
Click to expand...

You are literally running like 3.5x the pixels he is.

He's gaming at 1366x768.
 
Last edited:
http://www.anandtech.com/bench/GPU12/382

Going from 16x10 to 19x12 just increases performance by about 10% or so. Although the difference in pixels is a good 25-35% or so, but performance difference is just 10-12%.

Similarly going all the way up to 1600p doesn't make the FPS half in this game with modern CPUs, probably a hit of 20-40% or so, but still quite a bit more than half, more like 2/3rd or even 3/4th.

And he is using 8x MSAA, that is like 19x12 with 4x MSAA or btw 16x10 and 19x12 with 4x MSAA.

So his performance is about right IMO.
 
Wow thanks for all your support guys! Ok so I downloaded Driver Sweeper, uninstalled ati drivers, run driver sweeper, (it did find some old nvidia drivers) removed all ati & nvidia software. rebooted and reinstalled ati drivers.
Im now getting the kdbsync error again yay!!
I think I will try reinstalling windows again?? If that fails then what do i do?????????
 
4myrig said:
Wow thanks for all your support guys! Ok so I downloaded Driver Sweeper, uninstalled ati drivers, run driver sweeper, (it did find some old nvidia drivers) removed all ati & nvidia software. rebooted and reinstalled ati drivers.
Im now getting the kdbsync error again yay!!
I think I will try reinstalling windows again?? If that fails then what do i do?????????
Click to expand...
Go start->run,type msconfig.go to the startup tab and disable the kdbsync from launching at windows startup.That should fix it.U can also try to install the opencl package from amd site.
 
So I reinstalled windows. only installed essential drivers and programs. run dirt3 and nothing has changed:| the kdbsync error has stopped though:awe: ive now OC'd my 7870 (on Stock volts) rock solid stable at 1200mhz core & 1365mhz memory. It made my 3dmark 11 score alot higher 😉 I guess dirt3 just doesn't perform that well on my rig??

Don Karnage said:
1366x768? Why would you buy a 7870 for that resolution?
Click to expand...

simply put because I CAN😉 And besides that I plan to upgrade the monitor very shortly.
 
4myrig said:
So I reinstalled windows. only installed essential drivers and programs. run dirt3 and nothing has changed:| the kdbsync error has stopped though:awe: ive now OC'd my 7870 (on Stock volts) rock solid stable at 1200mhz core & 1365mhz memory. It made my 3dmark 11 score alot higher 😉 I guess dirt3 just doesn't perform that well on my rig??



simply put because I CAN😉 And besides that I plan to upgrade the monitor very shortly.
Click to expand...
Leave dirt3 to dirt for the time being 😛
 
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