Ugrade AMD R6850 to HD7970 & framerate DROPS like a stone .....

Ok guys 'ive taken about 20 screen-grabs rolling down the pit-lane at Silverstone to try and show what's happening. The FPS is capped at 60 in the plr file and as you can see in picture 1 all is goo in the pits. Then as I pull out and just roll down the pit-lane all is good at picture 2 but dropped to 40fps at picture 3 with the green graphics bar at 100% then on picture later back to normal. Again look at 13 and 14 30 fps to 60.

Picture 16-17 shows 60 fps straight down to 28 !!!

Many thanks to all the suggestions so far but Lucky's setting didn't help & no the card is definitely no clocking down - see the purple overlay of gpu load to confirm

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I have a 7950 @ 1150 & 1500, with high setting, shadow medium, road rflexions high, 4aa
Put everithing to application on catalistic, i run minimal on grid with twelve cars 80 fps, then can go to 200 fps.
Everithing to application ...,,, amd 965. BE @ 4.2
Edit 14.1 beta driver, 1 monitor @ 1920x1080
 
Drivers 13.4

What brand card?
Take at least the drivers of the brand.
It knows what is best for your card

Your green progress bar is low me it is at least halfway see.

Ok I just saw your config ...
So put additional 4G ram, You Will See a big difference.
I think your concern is at this level.
 
Last edited by a moderator:
Ugrade AMD R6850 to HD7970 & framerate DROPS like a stone .....SOLVED!!!

hi Guys I have solved the problem and have to admit embarrassment at the solution but I will hang my head in shame in the hope that it helps others avoid the same mistake.......

There are two video card slot on my motherboard, due to the size of the new video card if I used slot one it covered the PCI slot so instead I put the new card into slot two ....... no one told me that only slot number one runs at 16X ....... slot two runs at 8X ........

Swapped over to slot 1 and card burst into life :) Cranked everything up a notch and running AA in Catalyst Control Centre I still get a rock solid 60FPS. Ad in 15 Ai's (run from a server) and it drops to about 40FPS at the start but quickly climbs back to 60FPS .......one happy puppy and oooh Silverstone is soooooo pretty :)

Thanks again for your perserverance & input chaps and for putting up with my numptyness

jonathan
 
Yep that happened to me with an older card once, most embarrassing as I should've known better! Glad you're sorted
 
jonrarit said:
hi Guys I have solved the problem and have to admit embarrassment at the solution but I will hang my head in shame in the hope that it helps others avoid the same mistake.......

There are two video card slot on my motherboard, due to the size of the new video card if I used slot one it covered the PCI slot so instead I put the new card into slot two ....... no one told me that only slot number one runs at 16X ....... slot two runs at 8X ........

Swapped over to slot 1 and card burst into life :) Cranked everything up a notch and running AA in Catalyst Control Centre I still get a rock solid 60FPS. Ad in 15 Ai's (run from a server) and it drops to about 40FPS at the start but quickly climbs back to 60FPS .......one happy puppy and oooh Silverstone is soooooo pretty :)

Thanks again for your perserverance & input chaps and for putting up with my numptyness

jonathan
Click to expand...


Glad you solved it!

Next time, read the manual! Nobody reads manuals to their motherboards :p
 
osella said:
Next time, read the manual! Nobody reads manuals to their motherboards :p
Click to expand...
Imagine yourself in front of opened computer case, with manual in one hand and your brand new, shiny, powerful graphics card in the other hand...

What do you do?

;)
 
And ppl still say that pci-e 3.0 @ 16x brings marginal gains of just a couple or few percent over pci-e 3.0 @ 8x / pci-e 2.0 @ 16x (same theoretical bandwidth)) just because technically, on paper, the theoretical bandwidth limit of 3.0 @ 8x / 2.0 @ 16x is still extremely high. I've seen enough evidence over the past 2-3 years that I would never want to have a card in pci-e 3.0 @ 8x /pci-e 2.0 @ 16x, I don't care how far we are from saturating it theoreticaly speaking on paper.

One of those cases where general benchmark reviews don't usually tell the whole story.
 
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