Got a faster vid card and better monitor...framerates plunged!

[Deftones81]

I went from a Geforce 7800 GTX 256 MB KO edition to a 7800 GTX 512 MB. The newer card has higher clock speeds as well. I also got a new LCD monitor with an 8 ms response time. I noticed that the recommended refresh rate at any resolution is 60 mgz. When I ran the fear benchmark with the same settings as the old card and CRT monitor I got a crazy max FPS of 285!!! But the min actually dipped into the 40s. Before with worse hardware the min NEVER dipped that low. Any suggestions?

 

[xtknight]

Turn off vertical sync or enable triple buffering for another half increase of FPS (will use more VRAM though)?

You can also set your LCD to 75 Hz vertical frequency most likely.

The 7800 GTX 512 should outperform the 7800 GTX 256 in every single consequence because it's the same core with higher clocks and more memory, and there's no SLI overhead involved in the equation.

 

[Deftones81]

So the limiting factor would be the LCD monitor as opposed to a CRT? There is no way to match FPS on a LCD?? I cannot believe if an LCD monitor is doing 75 mgz refresh rate against a CRTs 120 mgz at the same res that anything should dip below 40 with the exact same settings. "Gaming" LCD my ass....blah

 

[Elfear]

The frames you can see will be different from an LCD to a CRT with different refresh rates but the game benchmark won't be affected one bit. Are you running at the same resolution as you were with the CRT? Are the driver settings the same as with the old card?

 

[xtknight]

The monitor doesn't have a thing to do with how many FPS your graphics card can push. Clearly VSync is enabled somehow. Or compare them under controlled conditions (same driver and same VSync settings).

 

[Deftones81]

So if VSYNC is disabled the FPS should be identicle even if the LCD can only push 75 htz and the CRT can do 120 at the same resolution? If VSYNC is enabled then the CRT will always ahve the upper hand? Basically my girlfriend bought me a really expensive, low response rate LCD for Christmas and I am trying to justify why framerates seem slower in every game. I will plug the old CRT into it and see where I stand. Sorry about being such a noob.

 

[imported_michaelpatrick33]

Originally posted by: Deftones81
So if VSYNC is disabled the FPS should be identicle even if the LCD can only push 75 htz and the CRT can do 120 at the same resolution? If VSYNC is enabled then the CRT will always ahve the upper hand? Basically my girlfriend bought me a really expensive, low response rate LCD for Christmas and I am trying to justify why framerates seem slower in every game. I will plug the old CRT into it and see where I stand. Sorry about being such a noob.

You are aware that LCD's dont' have true refresh rates that equate to CRT's right?

http://www.techmind.org/lcd/
Quote from above article about LCDs versus CRTs
"Refresh rate is the rate at which the electronics in the monitor addresses (updates) the brightness of the pixels on the screen (typically 60 to 75Hz). For each pixel, an LCD monitor maintains a constant light output from one addressing cycle to the next (sometimes referred to as 'sample-and-hold'), so the display has no refresh-dependent flicker.
There should be no need to set a high refresh rate to avoid flicker on an LCD."

I believe a 16ms LCD response time yielded around 62.5 fps with no problem but that is of course dependent on many variables such as marketing. LOL

 

[Avalon]

It's probably because your LCD has a native resolution higher than your CRT, and you forgot to change resolutions to make an even comparison.